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José Azaña

Télécommunications par fibre optique

Photonique ultrarapide, imagerie médicale

Publications

 

Prof. Azaña has to his credit more than 250 publications in top scientific journals and leading technical conferences, including more than 120 publications in high-impact peer-review journals and various invited and co-invited presentations in international meetings. Some of his published works have been very highly cited by his peers. In what follows, a representative sample of his peer-review journal publications is presented (listed in inverse chronological order):

 

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

 

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).

 

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).

 

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

 

M. Ferrara, 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).

 

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).

 

M. H. Asghari, C. Wang, J. Yao, and J. Azaña, “High-order passive photonic temporal integrators,” Opt. Lett., vol. 35, pp. 1191-1193 (2010).

 

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).

 

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).

 

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).

 

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]

 

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).

 

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).

 

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).

 

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).

 

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).

 

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).

 

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).

 

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).

 

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).

 

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).

 

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. 43, pp. 437-439 (2008).

 

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).

 

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

 

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).

 

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).

 

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).

 

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).

 

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).

 

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).

 

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]

 

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).

 

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

 

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

 

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).

 

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

 

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).

 

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).

 

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).

 

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). [INVITED]

 

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

 

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).

 

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).

 

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).

 

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).

 

P. Dong, J. Azaña, A. G. Kirk, “Synthesis of fiber Bragg grating parameters from reflectivity by means of a simulated annealing algorithm”, Opt. Comm., vol. 228, pp.303-308 (2003).

 

J. Azaña, “Design specifications of a time-domain spectral shaping optical system based on dispersion and temporal modulation”, Electron. Lett., vol. 39, pp. 1530-1532, (2003).

 

J. Azaña, L.R. Chen, “General temporal self-imaging phenomena”, J. Opt. Soc. Am. B, vol. 20, pp. 1447-1458 (2003).

 

J. Azaña, R. Slavík. P. Kockaert, L.R. Chen, S. LaRochelle, “Generation of customized ultrahigh repetition rate pulse sequences using superimposed fiber Bragg gratings”, IEEE/OSA J. Lightwave Technol., vol. 21, pp. 1490-1498 (2003).

 

J. Azaña, P. Kockaert, R. Slavík, L.R. Chen, S. LaRochelle, “Generation of a 100-GHz optical pulse train by pulse repetition rate multiplication using superimposed fiber Bragg gratings”, IEEE Photon. Technol. Lett., vol. 15, pp. 413-415 (2003).

 

J. Azaña, “Temporal self-imaging effects for periodic optical pulse sequences of finite duration”, J. Opt. Soc. Am. B, vol. 20, pp. 83-90 (2003).

 

J. Azaña, L. R. Chen, “Synthesis of temporal optical waveforms using fiber Bragg gratings: A new approach based on space-to-frequency-to-time mapping”, J. Opt. Soc. Am. B, vol. 19, pp. 2758-2769 (2002).

 

J. Azaña, M. A. Muriel, “Technique for simultaneously multiplying the repetition rate of multiwavelength optical pulse trains”, IEEE Photon. Technol. Lett., vol. 13, pp. 1358-1360 (2001). 
[Featured in WDM Solutions, April 2002]

 

J. Azaña, M. A. Muriel, “Simultaneous multi-wavelength real-time optical spectrum analysis”, Appl. Opt., vol. 40, pp. 3831-3842 (2001).

 

J. Azaña, M. A. Muriel, “Temporal self-imaging effects: theory and application for multiplying pulse repetition rates”, IEEE J. Sel. Top. Quantum Electron., vol. 7, pp. 728 – 744 (2001).

 

J. Azaña, M. A. Muriel, L. R. Chen, P.W.E. Smith, “Fiber Bragg grating period reconstruction using time-frequency signal analysis and application to distributed sensing”, IEEE/OSA J. Lightwave Technol., vol. 19, pp.646-654 (2001).

 

J. Azaña, M. A. Muriel, “Reconstructing arbitrary strain distributions within fiber gratings by time-frequency signal analysis”, Opt. Lett., vol. 24, pp. 698-700 (2000).

 

J. Azaña, M. A. Muriel, “Real-time optical spectrum analysis based on the time-space duality in chirped fiber gratings”, IEEE J. Quantum Electron., vol. 36, pp. 517-526 (2000).

 

J. Azaña, L. R. Chen, M. A. Muriel, Peter W. E. Smith, “Experimental demonstration of real-time Fourier transformation using linearly chirped fiber Bragg gratings”, Electron. Lett., vol. 35, pp. 2223-2224 (1999).

 

J. Azaña, M. A. Muriel, “Technique for multiplying the repetition rate of periodic trains of pulses by means of a temporal self-imaging effect in chirped fiber gratings”, Opt. Lett., vol. 24, pp. 1672-1674 (1999).


 

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