Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Alexandre D. Simard"'
Autor:
Sophie LaRochelle, Alexandre D. Simard
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 22:107-115
We present a dynamic model of silicon Bragg grating modulators that takes into account the distributed feedback of the grating coupled to depletion-based phase-shifters. We further consider the on-chip degradation of the radio-frequency excitation. T
Publikováno v:
Journal of Lightwave Technology. 33:5227-5234
In this paper, we propose a novel optimization technique that make use of nonlinear cost functions to design polarization-insensitive wavelength division demultiplexing (DEMUX) lattice filters in silicon-on-insulator (SOI) waveguides. These waveguide
Autor:
Alexandre D. Simard, Sophie LaRochelle
Publikováno v:
OFC
Integrated Bragg grating filters in silicon-on-insulator waveguides are evolving from simple broadband reflectors to filters with complex spectral responses and high-speed modulators. We review recent progress and applications of these devices.
Publikováno v:
Optics express. 24(17)
We experimentally demonstrate PAM-8 generation from binary electrical signals driving a silicon multi-electrode Mach-Zehnder modulator acting as an optical digital-to-analog converter. Measured BER in back-to-back configuration is used to evaluate si
Autor:
Alexandre D. Simard, Sophie LaRochelle, Benoit Filion, Y. Painchaud, K. Bedard, Leslie A. Rusch
Publikováno v:
OFC
A Bragg grating SiP modulator operated at 50 Gb/s with BER below the FEC threshold is demonstrated using OOK modulation without equalization. To date, this work presents the fastest SiP modulator using Bragg gratings structures.
Autor:
Sophie LaRochelle, Alexandre D. Simard
Publikováno v:
Journal of Lightwave Technology. 30:184-191
Tunable notch filters with multiple transmission lines have been proposed and demonstrated by temporarily inducing phase-shifts in chirped fiber Bragg gratings through the application of stress or thermal perturbations. These filters find application
Publikováno v:
Journal of Lightwave Technology. 29:3693-3704
A major issue in the fabrication of integrated Bragg grating (IBG) filters in highly confined waveguides is the average effective index fluctuations caused by sidewall roughness. In this work, we model the impact of this effect on IBG spectral respon
Publikováno v:
Journal of Lightwave Technology. 29:750-755
We develop and experimentally validate a method to characterize linearly chirped fiber Bragg gratings (CFBGs) under local temperature perturbations for tunable spectral shaping. The heat distribution along the FBG is modeled by a Gaussian-Lorentzian
Publikováno v:
Journal of Lightwave Technology. 27:5183-5191
We demonstrate a millimeter-wave (mm-wave) synthesizer based on spectral filtering of the plusmn2 harmonics of a phase-modulated (PM) laser. Optical filters with narrow passband, good extinction ratio and tunable peak wavelengths are obtained by intr
Autor:
Alexandre D. Simard, Sophie LaRochelle
Publikováno v:
CLEO: 2015.
We demonstrate that apodized Bragg gratings placed in the two arms of a Mach-Zehnder structure in SOI can provide high-quality filtering functions overcoming phase noise distortions. As examples, we present narrowband, phase-shifted and dispersion-le