29 August 2002 Simple model for DFB laser integrated with Mach-Zehnder modulator
Author Affiliations +
Proceedings Volume 4905, Materials and Devices for Optical and Wireless Communications; (2002) https://doi.org/10.1117/12.481009
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China
Abstract
This paper presents a time-domain traveling-wave algorithm for the modeling of the large signal dynamic response of a distributed feedback laser integrated with a Mach-Zehnder modulator. The influence of residual optical feedback from the output of the modulator facet on the dynamic frequency chirp is studied. It is found that the difference in frequency chirp between the turn-on and -off states (i.e., adiabatic chirp) of a π/2 shifted 2x2 Mach-Zehnder modulator is minimal and is independent of the residual optical feedback. In addition, it can be shown that the presence of chirped frequency spikes (i.e., transient chirp), due to the change in refractive index as a result of the rapid variation of the bias voltage, can broaden the linewidth and distort the spectrum of the modulated optical signal.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
L. Y. Du, Siu Fung Yu, Nam Quoc Ngo, "Simple model for DFB laser integrated with Mach-Zehnder modulator", Proc. SPIE 4905, Materials and Devices for Optical and Wireless Communications, (29 August 2002); doi: 10.1117/12.481009; https://doi.org/10.1117/12.481009
PROCEEDINGS
12 PAGES


SHARE
Back to Top