Published and in-press refereed articles

Invited Articles
[A9] R. Maram, L. Romero Cortes, J. Van Howe, J. Azaña, “Energy-preserving arbitrary repetition-rate control of periodic pulse trains using temporal Talbot effects,” IEEE/OSA J. Lightwave Technol., vol. 35, pp. 5403-5406, (2017).

[A8] R. Maram, L. Romero Cortés, J. Azaña, “Programmable Fiber-Optics Pulse Repetition-Rate Multiplier,” IEEE/OSA J. Lightwave Technol., vol. 34, pp. 5403-5406, (2016).

[A7] M. Li, J. Azaña, N. Zhu, J. Yao, “Recent progresses on optical arbitrary waveform generation,” Frontiers of Optoelectronics, vol. 7, pp. 359-375 (2014).

[A6] M. Burla, L. R. Cortes, M. Li, X. Wang, L. Chrostowski, J. Azaña, “Integrated waveguide Bragg gratings for microwave photonic signal processing,” Opt. Express, vol. 21, pp. 25120-25147 (2013).

[A5] J. Azaña, L.K. Oxenløwe, E. Palushani, R. Slavík, M. Galili, H.C.H. Mulvad, H. Hu, Y. Park, A.T. Clausen, P. Jeppesen, “In-fiber sub-picosecond pulse shaping for nonlinear optical telecommunication data processing at 640Gb/s,” Hindaway – International Journal of Optics , special issue on ‘Non-linear Fibre-based Photonic Technologies’, vol. 2012, article ID 895281, 16 pages (2012).

[A4] T.-J. Ahn, Y. Park, J. Azaña, “Ultra-rapid optical frequency-domain reflectometry based upon dispersion-induced time stretching: Principle and application,” IEEE J. Sel. Top. Quantum Electron., vol. 18, pp. 148-165 (2012).

[A3] J. Azaña, Y. Park, F. Li, “Linear Self-Referenced Complex-Field Characterization of Fast Optical Signals Using Photonic Differentiation,” Opt. Comm., vol. 284, pp. 3772-3784 (2011).

[A2] J. Azaña, “Ultrafast analog all-optical signal processors based on fiber-grating devices,” IEEE Photonics Journal, vol. 2, pp. 359-386 (2010).

[A1] J. Azaña, “Wigner analysis of linear and nonlinear pulse propagation in optical fibers”, EURASIP J. Appl. Signal Proc. 2005, Issue 10, pp. 1554-1565 (2005).


Contributed Articles
[B173] M. Kues, C. Reimer, P. Roztocki, L. Romero Cortés, S. Sciara, B. Wetzel, Y. Zhang, A. Cino, S. T. Chu, B. E. Little, D. J. Moss, L. Caspani, J. Azaña, R. Morandotti, “ On-chip generation of high-dimensional entangled quantum states and their coherent control,” Nature, vol. 546, pp. 622-626 (2017).

[B172] C. R. Fernández-Pousa, R. Maram, J. Azaña “ CW-to-pulse conversion using temporal Talbot array illuminators,” Opt. Lett., vol. 42, pp. 2427-2430 (2017).

[B171] H. Guillet de Chatellus, L. Romero Cortés, A. Deville, M. Seghilani, J. Azaña, “ Diffraction-induced bidimensional Talbot self-imaging with full independent period control ”, Phys. Rev. Lett., vol. 118, pp. 133903-(1-5) (2017).

[B170] J. Pastor-Graells, L. Romero-Cortés, M. R. Fernández-Ruiz, H. F. Martins, J. Azaña, S. Martín-López, M. González-Herráez, “ SNR enhancement in high-resolution phase-sensitive OTDR systems using chirped pulse amplification concepts,” Opt. Lett., vol. 42, pp. 1728 – 1731 (2017).

[B169] J. Hu, J. Azaña, “ All-optical reconfigurable signal processing based on cross-phase-modulation time lensing,” IEEE Photon. Technol. Lett., vol. 29, pp. 826-829 (2017).

[B168] M. Seghilani, R. Maram, J. Azaña, “ Mitigating nonlinear propagation impairments of ultrashort pulses by fractional temporal self-imaging,” Opt. Lett., vol. 42, pp. 879-882 (2017).

[B167] H. P. Bazargani, M. Burla, L. Chrostowski, J. Azaña, “Photonic Hilbert transformers based on laterally apodized integrated waveguide Bragg gratings on SOI wafer,” Opt Lett, vol. 41, in press (2016).

[B166] M. Burla, X. Wang, M. Li, L. Chrostowski, J. Azaña, “Wideband dynamic microwave frequency identification system using a low-power ultra-compact silicon photonic chip,” Nature Commun. 7:13004, doi: 10.1038/ncomms13004 (2016).

[B165] H. P. Bazargani, M. Burla, Z. Chen, J. Zhang, L. Chrostowski, J. Azaña, “Long-duration optical pulse shaping and complex coding in SOI using discrete space-to-time mapping,” IEEE Photon. J., vol. 8, Paper number 7803807 – 7 pages (2016).

[B164] B. Li, J. Azaña, “Theory of incoherent-light temporal imaging systems based on a temporal pinhole,” IEEE/OSA J. Lightwave Technol., vol. 34, pp. 2758 – 2773 (2016).

[B163] M. R. Fernández-Ruiz, J. Huh, J. Azaña, “Time-domain Vander-Lugt filters for in-fiber complex (amplitude and phase) optical pulse shaping,” Opt Lett, vol. 41, pp. 2121-2124 (2016).

[B162] S. Sun, M. Li, J. Tang, N. H. Zhu, T.-J. Ahn, J. Azaña, “Femtosecond pulse shaping using wavelength selective directional couplers: proposal and simulation,” Opt. Express, vol. 24, pp. 7943-7950 (2016).

[B161] J. Huh, J. Azaña, “In-fiber reconfigurable generation of arbitrary (asymmetric) picosecond temporal intensity waveforms by time-domain optical pulse shaping,” Opt Lett, vol. 41, pp. 693-696 (2016).

[B160] M. Li, Y. Deng, J. Tang, S. Sun, J. Yao, J. Azaña, N. H. Zhu, “Reconfigurable optical signal processing based on a distributed feedback semiconductor optical amplifier,” Scientific Reports (2016).

[B159] L. Romero Cortés, H. Guillet de Chatellus, J. Azaña, “On the generality of the Talbot condition for inducing self-imaging effects on periodic objects,” Opt Lett, vol. 41, pp. 340-343 (2016).

[B158] H. Guillet de Chatellus, L. Romero Cortés, J. Azaña, “Optical real-time Fourier transformation with kilohertz resolutions”, Optica, vol. 3, pp. 1-8 (2016).

[B157] R. Maram, D. Kong, M. Galili, L. K. Oxenløwe, J. Azaña, “640 Gbit/s return-to-zero to non-return-to-zero format conversion based on optical linear spectral phase filtering,” Opt. Lett., vol. 41, pp. 64-67 (2016).

[B156] B. Li, J. Azaña, “Temporal imaging of incoherent-light intensity waveforms based on a gated time-lens system,” IEEE Photon. J., vol. 7, pp. 6901508(1-9) (2015).

[B155] A. Malacarne, Y. Park, M. Li, S. LaRochelle, J. Azaña, “Real-time Fourier transformation of lightwave spectra and application in optical reflectometry,” Opt. Express, vol. 23, pp. 32516-32527 (2015).

[B154] H. P. Bazargani, M. Burla, J. Azaña, “Experimental demonstration of sub-picosecond optical pulse shaping in silicon based on discrete space-to-time mapping,” Opt. Lett, vol. 40, pp. 5423-5426 (2015).

[B153] L. Lei, J. Huh, L. Romero Cortés, R. Maram, B. Wetzel, D. Duchesne, R. Morandotti, J. Azaña,Observation of spectral self-imaging by nonlinear parabolic cross-phase modulation,” Opt. Lett., vol. 40, pp. 5403-5406 (2015)

[B152] J. Huh, J. Azaña, “Generation of high-quality parabolic pulses with optimized duration and energy by use of dispersive frequency-to-time mapping,” Opt. Express, vol. 23, pp. 27751-27762 (2015).

[B151] L. Romero Cortés, R. Maram, and J. Azaña,“Fractional averaging of repetitive waveforms induced by self-imaging effects,” Phys. Rev. A – Rapid communication, vol. 92, p. 041804(R) (2015).

[B150] H. P. Bazargani, J. Azaña, “Optical pulse shaping based on discrete space-to-time mapping in cascaded co-directional couplersOpt. Express, vol. 23, pp. 23450-23461 (2015).

[B149] H. F. Martins, J. Pastor-Graells, L. Romero Cortés, D. Piote, S. Martín-Lopez, J. Azaña, M. González-Herráez, “PROUD-based method for simple real-time in-line characterization of propagation-induced distorsions in NRZ data signals,” Opt. Lett., vol. 40, pp. 4356-4359 (2015).

[B148] M. R. Fernández-Ruiz, Lei Lei, M. Rochette, J. Azaña, “All-optical wavelength conversion based on time-domain holography,” Opt. Express, vol. 23, pp. 22847-22856 (2015).

[B147] R. Ashrafi, M. Rezagholipour, L. Romero Cortés, J. Zhang, J. Yao, J. Azaña, L. R. Chen, “Time-delay to intensity mapping based on a second-order optical integrator: application to optical arbitrary waveform generation,” Opt. Express, vol. 23, pp. 16209-16223 (2015).

[B146] H. Guillet de Chatellus, E. Lacot, O. Hugon, O. Jacquin, N. Khebbache, J. Azaña, “Phases of Talbot patterns in angular self-imaging,” J. Opt. Soc. Am. A, vol. 32, pp. 1132-1139 (2015)

[B145] B. Li, S. Lou, J. Azaña, “Implementation of the photonic time-stretch concept using an incoherent pulsed light source,” Appl. Opt., vol. 54, pp. 2757-2761 (2015).

[B144] B. Li, M. R. Fernández-Ruiz, S. Lou, J. Azaña, “High-contrast linear optical pulse compression using a temporal hologram,” Opt. Express, vol. 23, pp. 6833-6845 (2015).

[B143] R. Maram, L. Romero Cortés, J. Azaña, “Sub-harmonic periodic pulse train recovery from aperiodic pulse trains through dispersion-induced temporal self-imaging,” Opt. Express, vol. 23, pp. 3602-3613 (2015).

[B142] R. Maram, J. Van Howe, M. Li, J. Azaña, “Lossless fractional pulse repetition-rate multiplication of optical pulse trains,” Opt. Lett., vol. 40, pp. 375-378 (2015).

[B141] B. Li, S. Lou, J. Azaña, “Incoherent-light temporal imaging based on a temporal pinspeck,” IEEE Photon. Technol. Lett., vol. 27, pp. 348-351 (2015).

[B140] M. R. Fernández-Ruiz, J. Azaña, “Temporal phase conjugation based on time-domain holography,” Opt. Lett., vol. 40, 127-130 (2015).

[B139] M. R. Fernández-Ruiz, L. Wang, A. Carballar, M. Burla, J. Azaña, S. LaRochelle, “THz-bandwidth photonic Hilbert transformers based on fiber Bragg gratings in transmission,” Opt.Lett., vol. 40, pp. 41-44 (2015).

[B138] Y. Deng, M. Li, N.B. Huang, J. Azaña, N. H. Zhu, “Optical length change measurement based on an incoherent single bandpass microwave photonic filter with high resolution,” Photonics Research, vol. 2, pp. B35-B39 (2014).

[B137] Y. Deng, M. Li, N.B. Huang, J. Azaña, N. H. Zhu, “Serial time-encoded amplified microscopy for ultrafast imaging based on multi-wavelength laser,” Chinese Science Bulletin, vol. 59, pp. 2693-2701 (2014).[Cover Paper]

[B136] B. Li, S. Lou, J. Azaña, “Novel temporal zone plate designs with improved energy efficiency and noise performance,” IEEE/OSA J. Lightwave Technol., vol. 32, pp. 4803-4809 (2014).

[B135] H. P. Bazargani, J.-B. Quélène, P. Dumais, A. Malacarne, M. Clerici, R. Morandotti, C. L. Callender, J. Azaña, “On-chip, single-shot characterization of GHz-rate complex optical signals,” IEEE Photon. Technol. Lett., vol. 26, pp. 2345-2348 (2014).

[B134] M. Burla, M. Li, L. R. Cortes, X. Wang, M. R. Fernández-Ruiz, L. Chrostowski, J. Azaña, “Terahertz-bandwidth photonic fractional Hilbert transformer based on a phase-shifted waveguide Bragg grating on silicon,” Opt. Lett., vol. 39, pp. 6241-6244 (2014).

[B133] M. Burla, L. R. Cortes, M. Li, X. Wang, L. Chrostowski, J. Azaña, “On-chip programmable ultra-wideband microwave photonic phase shifter and true time delay unit,” Opt. Lett., vol. 39, pp. 6181-6184 (2014).

[B132] R. Maram, J. Van Howe, M. Li, J. Azaña, “Noiseless intensity amplification of repetitive signals by coherent addition using the temporal Talbot effect,” Nature Commun. 5:5163 doi: 10.1038/ncomms6163 (2014).

[B131] H. P. Bazargani, M. R. Fernández-Ruiz, J. Azaña, “Tunable, nondispersive optical filter using photonic Hilbert transformation,” Opt. Lett., vol. 39, pp. 5232-5235 (2014)

[B130] B. Li, J. Azaña, “Incoherent-light temporal stretching of high-speed intensity waveforms,” Opt. Lett., vol. 39, pp. 4243-4246 (2014).

[B129] M. R. Fernández-Ruiz, A. Carballar, J. Azaña, “Arbitrary time-limited optical pulse processors based on transmission Bragg gratings,” IEEE Photon. Technol. Lett., vol. 26, pp. 1754-1757 (2014).

[B128] J. Azaña, H. Guillet de Chatellus, “Angular Talbot effect,” Phys. Rev. Lett., vol. 112, pp. 213902-(1 – 5) (2014).

[B127] R. Maram, D. Kong, M. Galili, L. K. Oxenløwe, J. Azaña, “Ultrafast all-optical clock recovery based on phase-only linear optical filtering,” Opt. Lett., vol. 39, pp. 2815-2818 (2014).

[B126] X. Zou, M. Li, W. Ge, W. Pan, B. Luo, L. Yan, J. Azaña, “Synthesis of fiber Bragg gratings with arbitrary stationary power/field distribution,” IEEE J. Quantum Electron., vol. 50, pp. 186-197 (2014).

[B125] N. Huang, M. Li, R. Ashrafi, L. Wang, X. Wang, J. Azaña, N. Zhu, “Active Fabry-Perot cavity for photonic temporal integrator with ultra-long operation time window,” Opt. Express, vol. 22, pp. 3105-3116 (2014).

[B124] R. Maram, J. Azaña, “Spectral self-imaging of time-periodic coherent frequency combs by parabolic cross-phase modulation,” Opt. Express, vol. 21, pp. 28824-28835 (2013).

[B123] X. Zou, M. Li, W. Pan, L. Yan, J. Azaña, J. Yao, “All-fiber optical filter with an ultra-narrow and rectangular spectral response,” Opt. Lett., vol. 38, pp. 3096-3098 (2013).

[B122] B. Li, M. Li, S. Lou, J. Azaña, “Linear optical pulse compression based on temporal zone plates,” Opt. Express, vol. 21, pp. 16814-16830 (2013).

[B121] R. Ashrafi, M. Li, J. Azaña, “Coupling-strength-independent long-period grating designs for THz-bandwidth optical differentiators,” IEEE Photon. Journal, vol. 5, pp. 7100311-(1 – 12) (2013).

[B120] M. R. Fernández-Ruiz, M. Li, J. Azaña, “Time-domain holograms for generation and processing of temporal complex information,” Opt. Express, vol. 21, pp.10314-10323 (2013).

[B119] R. Ashrafi, M. Li, N. Belhadj, M. Dastmalchi, S. LaRochelle, J. Azaña, “Experimental demonstration of superluminal space-to-time mapping in long period gratings,” Opt. Lett., vol. 38, pp. 1419-1421 (2013).

[B118] R. Ashrafi, M. Li, J. Azaña, “Tsymbol/s optical coding based on long period gratings,” IEEE Photon. Technol. Lett., vol. 25, pp. 910-913 (2013).

[B117] M. R. Fernández-Ruiz, A. Carballar, J. Azaña, “Design of ultrafast all-optical signal processing devices based on fiber Bragg gratings in transmission,” IEEE/OSA J. Lightwave Technol., vol. 31, pp. 1593-1600 (2013).

[B116] M. R. Fernández-Ruiz, M. Li, M. Dastmalchi, A. Carballar, S. LaRochelle, J. Azaña, “Picosecond optical signal processing based on transmissive fiber Bragg gratings,” Opt. Lett., vol. 38, pp. 1247-1249 (2013).

[B115] Y. Hu, M. Li, D. Bongiovanni, M. Clerici, J. Yao, Z. Chen, J. Azaña, R. Morandotti, “Spectrum to distance mapping via nonlinear Airy pulses,” Opt. Lett., vol. 38, pp. 380-382 (2013).

[B114] R. Ashrafi, M. Li, S. LaRochelle, J. Azaña, “Superluminal space-to-time mapping in grating-assisted co-directional couplers,” Opt. Express, vol. 21, pp. 6249-6256 (2013).

[B113] A. Pasquazi, M. Peccianti, J. Azaña, D.J. Moss, R. Morandotti, “FLEA: Fresnel-limited extraction algorithm applied to spectral phase interferometry for direct electric-field reconstruction (SPIDER),” Opt. Express, vol. 21, pp. 5743-5758 (2013).

[B112] A. Malacarne, J. Azaña, “Frequency comb laser with discretely tunable free spectral range by multilevel phase modulation of a periodic pulse train,” Opt. Express, vol. 21, pp. 4139-4144 (2013).

[B111] M. Li, H.-S. Jeong, J. Azaña, T.-J. Ahn, “25-terahertz-bandwidth all-optical temporal differentiator,” Opt. Express, vol. 20. pp. 28273-28280 (2012).

[B110] M. H. Asghari, J. Azaña, “Self-referenced temporal phase reconstruction from intensity measurements using causality arguments in linear optical filters,” Opt. Lett., vol. 37, pp. 3582-3584 (2012).

[B109] M. Chudzik, I. Arnedo, A. Lujambio, I. Arregui, F. Teberio, J. Azaña, D. Benito, M. A. G. Laso, T. Lopetegi, “Design of transmission-type Nth-order differentiators in planar microwave technology,” IEEE Trans. Microw. Theory and Techn., vol. 60, pp. 3384-3394 (2012).

[B108] M. Li, P. Dumais, R. Ashrafi, H. P. Bazargani, J.-B. Quélène, C. Callender, J. Azaña, “Ultrashort Flat-Top Pulse Generation Using On-Chip CMOS-Compatible Mach-Zehnder Interferometers,” IEEE Photon. Technol. Lett., vol. 24, pp. 1387-1389 (2012).

[B107] R. Ashrafi, J. Azaña, “THz-bandwidth real-time photonic Hilbert transformers based on long-period gratings,” Opt. Lett., vol. 37, pp. 2604-2606 (2012).

[B106] R. Ashrafi, J. Azaña, “Figure of merit of photonic differentiators,” Opt. Express, vol. 20, pp. 2626-2639 (2012).

[B105] A. Malacarne, R. Ashrafi, M. Li, S. LaRochelle, J. Yao, J. Azaña, “Single-shot photonic time-intensity integration based on a time-spectrum convolution system,” Opt. Lett. , vol. 37, pp. 1355-1357 (2012).

[B104] A. Pasquazi, Y. Park, S.T. Chu, B.E. Little, F. Légaré, R. Morandotti, J. Azaña, D.J. Moss, “Time lens measurement of subpicosecond optical pulses in CMOS compatible high index glass waveguides,” IEEE J. Sel. Top. Quantum Electron., vol. 18, pp. 629-636 (2012).

[B103] I. Arnedo, M. Chudzik, J. D. Schwartz, I. Arregui, A. Lujambio, F. Teberio, D. Benito, M. A. G. Laso, D. V. Plant, J. Azaña, T. Lopetegi, “Analytical solution for the design of planar electromagnetic bandgap structures with spurious-free frequency response,” Microw. Opt. Technol. Lett., vol. 54, pp. 956-960 (2012).

[B102] J. D. Schwartz, Q. Zhuge, J. Azaña, D. V. Plant, “1-D Uniform and Chirped Electromagnetic Bandgap Structures in Substrate Integrated Waveguides at 60 GHz,” Microw. Opt. Technol. Lett., vol. 54, pp. 735-737 (2012).

[B101] M. Ferrera, Y. Park, L. Razzari, B. E. Little, S. T. Chu, R. Morandotti, D. J. Moss, J. Azaña, “All-optical first and second-order integration on a chip,” Opt. Express, vol. 19. pp. 23153-23161 (2011).

[B100] K. Dolgaleva, A. Malacarne, P. Tannouri, L. A. Fernandes, J. R. Grenier, J. S. Aitchison, J. Azaña, R. Morandotti, P. R. Herman, and P. V. S. Marques, “Integrated optical temporal Fourier transformer based on chirped Bragg grating waveguide,” Opt. Lett., vol. 36, pp. 4416-4418 (2011).

[B99] A. Malacarne, Y. Park, J. Azaña “Reconfigurable optical DPSK pattern recognition based on incoherent photonic processing,” Opt. Lett. vol. 36, pp. 4290-4292 (2011).

[B98] A. Pasquazi, M. Peccianti, Y. Park, B.E. Little, S.T. Chu, R. Morandotti, J. Azaña, D.J. Moss, “Sub-picosecond phase-sensitive optical pulse characterization on a chip,” Nature Photonics, vol. 5, pp. 618-623 (2011).

[B97] K. A. Rutkowska, D. Duchesne, M. J. Strain, , R. Morandotti, M. Sorel, J. Azaña “Ultrafast all-optical temporal differentiators based on CMOS-compatible integrated-waveguide Bragg gratings,” Opt. Express, vol. 19, pp. 19514-19522 (2011).

[B96] M. H. Asghari, Y. Park, J. Azaña, “Photonic temporal integration of broadband intensity waveforms over long operation time windows,” Opt. Lett., vol. 36, pp. 3557-3559 (2011).

[B95] A. Malacarne, J. Azaña, “Analysis of amplitude fluctuation and timing-jitter performance of spectrally periodic Talbot filters for optical pulse rate multiplication,” Opt. Express, vol. 19, pp. 15339-15347 (2011).

[B94] R. Ashrafi, M. H. Asghari, J. Azaña, “Ultrafast optical arbitrary-order differentiators based on apodized long-period gratings,” IEEE Photonics Journal, vol. 3, pp. 353-364 (2011).

[B93] T.-J. Ahn, J. Azaña, “Wavelength-selective directional couplers as ultrafast optical differentiators,” Opt. Express, vol. 19, pp. 7625-7632 (2011).

[B92] Y. Park, A. Malacarne, J. Azaña “Real-time ultrawide-band group delay profile monitoring through low-noise incoherent temporal interferometry,” Opt. Express, vol. 19, pp. 3937-3944 (2011).

[B91] M. H. Asghari, J. Azaña, “Photonic integrator – based optical memory unit,” IEEE Photon. Technol. Lett., vol. 23, pp. 209-211 (2011).

[B90] M. H. Asghari, Y. Park, J. Azaña, “New design for photonic temporal integration with combined high processing speed and long operation time window,” Opt. Express vol. 19, pp. 425-435 (2011).

[B89] Y. Park, M. H. Asghari, R. Helsten, and J. Azaña, “Implementation of broadband microwave arbitrary-order time differential operators using a reconfigurable incoherent photonic processor,” IEEE Photonics Journal, vol. 2, pp. 1040-1050 (2010).

[B88] R. Ashrafi, Y. Park, J. Azaña, “Fiber-based photonic generation of high-frequency microwave pulses with reconfigurable linear chirp control,” IEEE Trans. Microw. Theory and Techn. (Special joint issue on ‘Microwave Photonics’, jointly published with IEEE/OSA J. Lightwave Technol.), vol. 58, pp. 3312-3319 (2010).

[B87] Y. Park, M. Scaffardi, A. Malacarne, L. Potì, J. Azaña, “Linear, self-referenced technique for single-shot and real-time full characterization of (sub-)picosecond optical pulses based on balanced electro-optic spectral differentiation,” Opt. Lett., vol. 35, pp. 2502-2504 (2010).

[B86] M. H. Asghari, Y. Park, J. Azaña, “Complex-field measurement of ultrafast dynamic optical events based on real-time spectral interferometry,” Opt. Express, vol. 18, pp. 16526-16538 (2010).[Featured in the review article on ‘Ultrafast Pulse Characterization’ methods by Rick Trebino in Laser Focus World, May 2011]

[B85] Y. Park, J. Azaña, “Ultrahigh dispersion of broadband microwave signals by incoherent photonic processing,” Opt. Express, vol. 18, pp. 14752-14761 (2010).

[B84] M. Ferrera, Y. Park, L. Razzari, B. E. Little, S. T. Chu, R. Morandotti, D. J. Moss, J. Azaña, “On-chip CMOS compatible all-optical integrator,” Nature Commun. 1:29 doi: 10.1038/ncomms1028 (2010). [Featured in the “Encyclopaedia Britannica 2011 Book of the Year – Events of 2010” as one of the most remarkable scientific advances of the year in “Physical Sciences – Physics”]

[B83] J. D. Schwartz, R. Abhari, D. V. Plant, J. Azaña, “Design and analysis of 1-D uniform and chirped electromagnetic bandgap structures (EBGs) in substrate integrated waveguides”, IEEE Trans. Microw. Theory and Techn., vol. 58, pp. 1858-1866 (2010).

[B82] S. Thomas, A. Malacarne, F. Fresi, L. Potì, A. Bogoni, J. Azaña, “Fiber-based programmable picosecond arbitrary optical pulse shaper,” IEEE/OSA J. Lightwave Technol., vol. 28, pp. 1832-1843 (2010).

[B81] M. H. Asghari, C. Wang, J. Yao, and J. Azaña, “High-order passive photonic temporal integrators,Opt. Lett., vol. 35, pp. 1191-1193 (2010).   [Featured in the article ‘Technology Review 2010’ of Laser Focus World, December 2010]

[B80] A. Pasquazi, F. Légaré, Y. Park, J. Azaña, R. Morandotti, B. E. Little, S. T. Chu, D. J. Moss, “Efficient wavelength conversion and net parametric gain via FWM in a high index doped silica waveguide,” Opt. Express, vol. 18, pp. 7634-7641 (2010).

[B79] Y. Park, J. Azaña, “Optical signal processors based on time-spectrum convolution process,Opt. Lett., vol. 35, pp. 796-798 (2010).

[B78] Y. Park, M. Scaffardi, L. Potì, J. Azaña, “Simultaneous single-shot real-time measurement of the instantaneous frequency and phase profiles of wavelength-division-multiplexed signals,Opt. Express, vol. 18, pp. 6220-6229 (2010).

[B77] F. Li, Y. Park, J. Azaña, “Linear characterization of optical pulses with durations ranging from the picosecond to the nanosecond regime using ultrafast photonic differentiation,” IEEE/OSA J. Lightwave Technol., vol. 27, pp. 4623-4633 (2009).

[B76] M. H. Asghari, J. Azaña, “On the design of efficient and accurate arbitrary-order temporal optical integrators using fiber Bragg gratings,” IEEE/OSA J. Lightwave Technol., vol. 27, pp. 3888-3895 (2009).

[B75] R. Slavík, Y. Park, M. Kulishov, J. Azaña, “THz-bandwidth high-order temporal differentiators based on phase-shifted long-period fiber gratings,” Opt. Lett., vol. 34, pp. 3116-3118 (2009).

[B74] F. Li, Y. Park, J. Azaña, “Single-shot, real-time frequency chirp characterization of telecommunication optical signals based on balanced temporal optical differentiation,” Opt. Lett., vol. 34, pp. 2742-2744 (2009).

[B73] L.-M. Rivas, S. Boudreau, Y. Park, R. Slavík, S. LaRochelle, A. Carballar, J. Azaña, “Experimental demonstration of ultrafast all-fiber high-order temporal differentiators,” Opt. Lett., vol. 34, pp. 1792-1794 (2009).

[B72] D. Kr?ma?ík, Y. Park, R. Slavík, J. Azaña, “Nonlinear pulse compression of picosecond parabolic-like pulses synthesized with a long period fiber grating filter,” Opt. Express, vol. 17, pp. 7074-7087 (2009).

[B71] Y. Park, J. Azaña, “Ultrafast photonic intensity integrator,” Opt. Lett., vol. 34, pp. 1156-1158 (2009).  [Featured in the ‘Newsbreaks’ section of Laser Focus World, June 2009]

[B70] R. Slavík, M. Kulishov, Y. Park, J. Azaña, “Long period fiber grating – based filter configuration enabling arbitrary linear filtering characteristics,” Opt. Lett., vol. 34, pp. 1045-1047 (2009).

[B69] R. Slavík, Y. Park, D. Kr?ma?ík, J. Azaña, “Stable all-fiber photonic temporal differentiator using a long-period fiber grating interferometer,” Opt. Comm., vol. 282, pp. 2339-2342 (2009).

[B68] S. Thomas, A. Malacarne, F. Fresi, L. Potì, A. Bogoni, J. Azaña, “Demonstration of a programmable fiber-based picosecond optical pulse shaper using time-domain binary phase-only linear filtering,” Opt.Lett., vol. 34, pp. 545-547 (2009).

[B67] Y. Park, T.-J. Ahn, J. Azaña, “Real-time complex temporal response measurements of ultrahigh-speed optical modulators,” Opt. Express, vol. 17, pp. 1734-1745 (2009).

[B66] M. H. Asghari, J. Azaña, “All-optical Hilbert transformer based on a single phase-shifted fiber Bragg grating: Design and analysis,” Opt. Lett., vol. 34, pp. 334-336 (2009).

[B65] D. Kr?ma?ík, R. Slavík, Y. Park, M. Kulishov, J. Azaña, “First-order loss-less differentiators using long period gratings made in Er-doped fibers,” Opt. Express, vol. 17, pp. 461-471 (2009).

[B64] F. Li, Y. Park, J. Azaña, “Group delay characterization of dispersive devices using a simple temporal intensity measurement setup,” IEEE Photon. Technol. Lett., vol. 20, pp. 2042-2044 (2008).

[B63] R. Slavík, Y. Park, N. Ayotte, S. Doucet, T.-J. Ahn, S. LaRochelle, J. Azaña, “Photonics temporal integrator for all-optical computing,” Opt. Express, vol. 16, pp. 18202-18214 (2008).

[B62] Y. Park, T.-J. Ahn, Y. Dai, J. Yao, J. Azaña, “All-optical temporal integration of ultrafast pulse waveforms,” Opt. Express, vol. 16, pp. 17817-17825 (2008).

[B61] L.-M. Rivas, M. Strain, D. Duchesne, A. Carballar, M. Sorel, R. Morandotti, J. Azaña, “Picosecond linear optical pulse shapers based on integrated waveguide Bragg gratings,” Opt. Lett., vol. 33, pp. 2425-2427 (2008).

[B60] M. H. Asghari, J. Azaña, “Arbitrary-order temporal integration of ultrafast optical signals using a single uniform-period fiber Bragg grating,Opt. Lett., vol. 33, pp. 1548-1550 (2008).

[B59] M. H. Asghari, J. Azaña, “Design of all-optical high-order temporal integrators based on multiple-phase-shifted Bragg gratings,” Opt. Express, vol. 16, pp. 11459-11469 (2008).

[B58] N. Belhadj, Y. Park, S. LaRochelle, K. Dossou, J. Azaña, “UV-induced modification of stress distribution in optical fibers and its contribution to Bragg grating birefringence,” Opt. Express, vol. 16, pp. 8727-8741 (2008).

[B57] M. H. Asghari, J. Azaña, “Proposal and analysis of a reconfigurable pulse shaping technique based on multi-arm optical differentiators,” Opt. Comm., vol. 281, pp. 4581-4588 (2008).

[B56] I. Arnedo, J. D. Schwartz, M. A. G. Laso, T. Lopetegui, D. V. Plant, J. Azaña, “Passive microwave planar circuits for arbitrary UWB pulse shaping,” IEEE Microwave & Wireless Component Lett., vol. 18, pp. 452-454 (2008).

[B55] Y. Park, T.-J. Ahn, F. Li, J. Azaña, “Synchronized generation of reconfigurable microwave sinusoidal wave-packets from a free-running pulsed laser,” IEEE Photon. Technol. Lett., vol. 20, pp. 1115-1117 (2008).

[B54] L. K. Oxenlowe, R. Slavík, M. Galili, H.C.M. Mulvad, A. T. Clausen, Y. Park, J. Azaña, P. Jeppesen, “640 Gbit/s timing jitter tolerant data processing using a long-period fiber grating-based flat-top pulse shaper,” IEEE J. Sel. Top. Quantum Electron., vol. 14, pp. 566-572 (2008).

[B53] K. Yiannopoulos, S. Thomas, J. Azaña, “Amplitude/timing jitter and peak-to-peak amplitude variation optimal rate multipliers,” IEEE/OSA J. Lightwave Technol., vol. 26, pp. 899-907 (2008).

[B52] R. Slavík, Y. Park, J. Azaña, “Long period fiber grating – based filter for generation of picosecond and sub-picosecond transform-limited flat-top pulses,” IEEE Photon. Technol. Lett., vol. 20, pp. 806-808 (2008).

[B51] T.-J. Ahn, Y. Park, J. Azaña, “Improved optical pulse characterization based on feedback-controlled Hilbert transformation temporal interferometry,” IEEE Photon. Technol. Lett., vol. 20, pp. 475-477 (2008).

[B50] J. Azaña, Y. Park, T.-J. Ahn, F. Li, “Simple and highly sensitive optical pulse characterization method based on electro-optic spectral signal differentiation,” Opt. Lett., vol. 33, pp. 437-439 (2008).

[B49] J. D. Schwartz, I. Arnedo, M. A. G. Laso, T. Lopetegui, J. Azaña, D. V. Plant, “An electronic UWB continuously tunable time-delay system with nanosecond delays,” IEEE Microwave & Wireless Component Lett., vol. 18, pp. 103-105 (2008).

[B48] N. K. Berger, B. Levit, B. Fischer, J. Azaña, “Picosecond flat-top pulse generation by low-bandwidth electro-optic sinusoidal phase modulation,” Opt. Lett., vol. 33, pp. 125-127 (2008).

[B47] Y. Park, T.-J. Ahn, J. Azaña, “Stabilization of a fiber-optic two-arm interferometer for ultra-short pulse signal processing applications,” Appl. Opt., vol. 47, pp. 417-421 (2008).

[B46] T.-J. Ahn, Y. Park, D. J. Moss, S. Ramachandran, J. Azaña, “Frequency-domain modal delay measurement for higher-order mode fiber based on stretched pulse interference,” Opt. Lett., vol. 33, pp. 19-21 (2008).

[B45] J. Azaña, “Proposal of a uniform fiber Bragg grating as an ultrafast all-optical integrator,” Opt. Lett., vol. 33, pp. 4-6 (2008).

[B44] R. Slavík, L. K. Oxenlowe, M. Galili, H.C.M. Mulvad, Y. Park, J. Azaña, P. Jeppesen, “Demultiplexing of 320 Gbit/s OTDM data using ultrashort flat-top pulses,” IEEE Photon. Technol. Lett., vol. 19, pp. 1855-1857 (2007).

[B43] Y. Park, T.-J. Ahn, J. Azaña, “Direct time-domain response of high-speed optical modulators based on stretched pulse interferometry,” Opt. Lett. vol. 32, pp. 3411-3413 (2007).

[B42] F. Li, Y. Park, J. Azaña, “Complete temporal pulse characterization using phase reconstruction based on optical ultrafast differentiation (PROUD),” Opt. Lett., vol. 32, pp. 3364-3366 (2007).

[B41] J. D. Schwartz, M. Guttman, J. Azaña, D. V. Plant, “Multi-channel filters using chirped bandgap structures in microstrip technologies,” IEEE Microwave & Wireless Component Lett., vol. 17, pp. 577-579 (2007).

[B40] T.-J. Ahn, Y. Park, J. Azaña, “Fast and accurate group delay ripple measurement technique for ultra-long chirped fiber Bragg gratings,” Opt. Lett., vol. 32, pp. 2674-2676 (2007).

[B39] L.-M. Rivas, K. Singh, A. Carballar, J. Azaña, “Arbitrary-order ultra-broadband all-optical differentiators based on fiber Bragg gratings”, IEEE Photon. Technol. Lett., vol. 19, pp. 1209-1211 (2007).

[B38] Y. Park, M. H. Asghari, T.-J. Ahn, J. Azaña, “Transform-limited picosecond pulse shaping based on coherence synthesization”, Opt. Express, vol. 15, pp. 9584-9599 (2007).

[B37] R. Slavík, Y. Park, J. Azaña, “Tunable dispersion-tolerant picosecond flat-top waveform generation using an optical differentiator”, Opt. Express, vol. 15, pp. 6717-6726 (2007).

[B36] M. Kulishov, J. Azaña, “High-order all-optical temporal differentiation using multiple-phase-shifted fiber Bragg gratings,” Opt. Express, vol. 15, pp. 6152-6166 (2007).

[B35] Y. Park, T.-J. Ahn, J.-C. Kieffer, J. Azaña, “Optical frequency domain reflectometry based on real-time Fourier transformation”, Opt. Express, vol. 15, pp. 4597-4616 (2007).

[B34] F. Li, J. Azaña, “Simplified system configuration for transform-limited optical real-time Fourier transformation”, Opt. Comm., vol. 274, pp. 59-65 (2007).

[B33] Y. Park, J. Azaña, R. Slavík, “Ultrafast all-optical first and higher-order differentiators based on interferometers”, Opt. Lett., vol. 32, pp. 710-712 (2007).

[B32] N. K. Berger, B. Levit, B. Fischer, M. Kulishov, D.V. Plant, J. Azaña, “Temporal differentiation of optical pulses using a phase-shifted fiber Bragg grating”, Opt. Express, vol. 15, pp. 371-381 (2007).

[B31] J. D. Schwartz, J. Azaña, D. V. Plant, “A fully-electronic system for the time magnification of ultra-wideband signals”, IEEE Trans. Microw. Theory and Techn., vol. 55, pp. 327-334 (2007). [2009 IEEE Microwave Prize]

[B30] J. M. Laniel, M. Kulishov, N. Bélanger, J. Azaña, D. V. Plant, “Comprehensive modeling of the stationary and dynamic behavior of imaginary Bragg gratings around threshold”, Opt. Comm., vol. 269, pp. 14-23 (2007).

[B29] D. Duchesne, R. Morandotti, J. Azaña, “Temporal Talbot phenomena in high-order dispersive media”, J. Opt. Soc. Am. B, vol. 24, pp. 113-125 (2007).

[B28] Y. Park, M. Kulishov, R. Slavík, J. Azaña, “Picosecond and sub-picosecond flat-top waveform generation using uniform long-period fiber gratings”, Opt. Express , vol. 14, pp. 12670-12678 (2006).

[B27] R. Slavík, Y. Park, M. Kulishov, R. Morandotti, J. Azaña, “Ultrafast all-optical differentiators”, Opt. Express, vol. 14, pp. 10699-10707 (2006).

[B26] J. Magné, J. Azaña, S. LaRochelle, L. R. Chen, “Simple technique for eliminating the interchannel phase fluctuations in spectral Talbot-based periodic comb filters”, IEEE Photon. Technol. Lett. 18, 1958-1960 (2006).

[B25] Y. Park, F. Li, J. Azaña, “Characterization and optimization of optical pulse differentiation using spectral interferometry”, IEEE Photon. Technol. Lett., vol. 18, pp. 1798-1800 (2006).

[B24] J. Azaña, N. K. Berger, B. Levit, B. Fischer, “Broadband arbitrary waveform generation based on microwave frequency upshifting in optical fibers”, IEEE/OSA J. Lightwave Technol., vol. 24, pp. 2663-2675 (2006).

[B23] J. Azaña and S. Gupta, “Complete family of periodic Talbot filters for pulse repetition rate multiplication”, Opt. Express, vol. 14, pp. 4270-4279 (2006).

[B22] J. Magné, J. Bolger, M. Rochette, S. LaRochelle, L. R. Chen, B. J. Eggleton, J. Azaña, “4´100 GHz pulse train generation from a single wavelength 10 GHz mode-locked laser using superimposed fiber gratings and nonlinear conversion”, IEEE/OSA J. Lightwave Technol., vol. 24, pp. 2091-2099 (2006).

[B21] J. D. Schwartz, J. Azaña, D. V. Plant, “Experimental demonstration of real-time spectrum analysis using dispersive microstrip”, IEEE Microwave & Wireless Component Lett., vol. 16, pp. 215-217 (2006).

[B20] J. Azaña, M. Kulishov, “All-fiber ultrafast optical differentiator based on a p phase-shifted long-period grating”, Electron. Lett., vol. 41, pp. 1368-1370 (2005).

[B19] J. Azaña, N. K. Berger, B. Levit, V. Smulakovsky, B. Fischer, “Reconfigurable generation of high-repetition-rate optical pulse trains based on time-domain phase-only filtering”, Opt. Lett., vol. 30, pp. 3228-3230 (2005).

[B18] M. Kulishov, J. Azaña, “Long-period fiber gratings as ultrafast optical differentiators”, Opt. Lett., vol. 30, pp. 2700-2702 (2005).

[B17] J. Azaña, C. Wang, L. R. Chen, “Spectral self-imaging phenomena in sampled Bragg gratings”, J. Opt. Soc. Am. B, vol. 22, pp. 1829-1841 (2005).

[B16] J. Magné, P. Giaccari, S. LaRochelle, J. Azaña, L. R. Chen, “All-fiber comb filter with tunable free-spectral-range”, Opt. Lett., vol. 30, pp. 2062-2064 (2005).

[B15] M. Kulishov, J. Azaña, “Ultrashort pulse propagation in uniform and non-uniform waveguide long-period gratings”, J. Opt. Soc. Am. A, vol. 22, pp. 1319-1333 (2005).

[B14] L. R. Chen, J. Azaña, “Spectral Talbot phenomena in sampled arbitrarily chirped Bragg gratings”, Opt. Comm., vol. 250, pp. 302-308 (2005).

[B13] J. Azaña, M. Kulishov, “Optical pulse shaping capabilities of grating-assisted co-directional couplers”, Elsevier Microelectron. J., vol. 36, pp. 289-293 (2005).

[B12] M. Kulishov, J. Laniel, N. Belanger, J. Azaña, D. V. Plant, “Non-reciprocal waveguide Bragg gratings”, Opt. Express , vol. 13, pp. 3068-3078 (2005).

[B11] J. Azaña, J. E. Lugo, A. G. Kirk, D. V. Plant, “New insights into the problem of shadowlike projection of a plane object illuminated by a spherical wavefront”, Opt. Comm., vol. 247, pp. 257-264 ( 2005).

[B10] J. Azaña, “Spectral Talbot phenomena of frequency combs induced by cross-phase-modulation in optical fibers”, Opt. Lett., vol. 30, pp. 227-229 (2005).

[B9] J. Azaña, N. K. Berger, B. Levit, B. Fischer, “A simplified system configuration for temporal imaging of optical pulses”, IEEE Photon. Technol. Lett., vol. 17, pp. 94-96 (2005).

[B8] J. Azaña, N. K. Berger, B. Levit, V. Smulakovsky, B. Fischer, “Frequency shifting of microwave signals using a general self-imaging (Talbot) effect in optical fibers”, Opt. Lett., vol. 29, pp. 2849-2851 (2004).

[B7] C. Wang, J. Azaña, L. R. Chen “Efficient technique for increasing the channel density in multi-wavelength sampled fiber Bragg grating filters”, IEEE Photon. Technol. Lett., vol. 16, pp. 1867-1869 (2004).

[B6] M. Kulishov, J. Azaña, “Ultrashort pulse propagation in grating-assisted codirectional couplers”, Opt. Express, vol. 12, pp. 2699-2709 (2004).

[B5] C. Wang, J. Azaña, L. R. Chen “Spectral Talbot-like phenomena in one-dimensional photonic bandgap structures”, Opt. Lett., vol. 29, pp. 1590-1592 (2004).

[B4] P. Kockaert, J. Azaña, L. R. Chen, S. LaRochelle, “Full characterization of uniform ultrahigh speed trains of optical pulses using fiber Bragg gratings and linear detectors”, IEEE Photon. Technol. Lett., vol. 16, pp. 1540-1542 (2004).

[B3] J. Azaña, “Pulse repetition rate multiplication using phase-only filtering”, Electron. Lett., vol. 40, pp. 449-451 (2004).

[B2] J. Azaña, N. K. Berger, B. Levit, B. Fischer, “Spectro-temporal imaging of optical pulses with a single time lens”, IEEE Photon. Technol. Lett. , vol. 16, pp. 882-884, (2004).

[B1] J. Azaña, N. K. Berger, B. Levit, B. Fischer, “Spectral Fraunhofer regime: time-to-frequency mapping by the action of a single time lens on an optical pulse”, Appl. Opt., vol. 43, pp. 483-490, (2004).