0000000000072790
AUTHOR
M. Brun
PSA-based phase regeneration of DPSK signals in a silicon germanium waveguide
We demonstrate a polarization-assisted PSA-based phase regenerator in a passive low-birefringence SiGe waveguide at low CW pump power. A PSER of 28.6-dB enables a six-fold reduction in phase-error and BER improvement of approximately 2-dB in the regenerated signal.
Demonstration of high speed optical transmission at 2 µm in various material based waveguides
International audience
Record Phase Sensitive Extinction Ratio in a Silicon Germanium Waveguide
A binary step-like phase response and phase-sensitive extinction ratio in excess of 28dB under CW pump operation was demonstrated in a 20mm-long low birefringence SiGe waveguide, using a polarization-assisted phase sensitive amplifier scheme.
High speed optical transmission at 2 μm in subwavelength waveguides made of various materials
We report the transmission of a 10 Gbps telecommunication signal at 2 μm in waveguides made of three different materials: Si, SiGe and TiO2. Bit error rates below 10−9 can be achieved after transmission in the devices with subwavelength dimensions.
Silicon germanium platform enabling mid-infrared to near-infrared conversion for telecom and sensing applications
This paper presents the potential of silicon germanium waveguides in the nonlinear conversion of light from mid-infrared wavelengths to the telecom band utilizing four-wave mixing. Design aspects and first characterization results of fabricated devices are presented.
Advanced nonlinear signal processing in silicon-based waveguides
This talk presents recent progress in optical signal processing based on compact waveguides fabricated mainly using silicon germanium alloys. Applications include supercontinuum generation, wavelength conversion and signal regeneration.
Polarization insensitive wavelength conversion of 40 Gb/s DPSK signals in a silicon germanium waveguide
We demonstrate polarization insensitive FWM-based wavelength conversion of 40Gb/s DPSK signals in a SiGe waveguide, with 0.42-dB polarization-dependent loss. A 1.5-dB Dower nenaltv was measured at a BER of 10−9.
High speed optical transmission at 2 µm in subwavelength waveguides made of various materials
International audience