Abstract
The small-signal \alpha-parameter of a semiconductor Mach-Zehnder modulator depends on the device design and on the bias and modulation voltages applied to the two independent drive electrodes. In particular, for the range of applied voltages which correspond to switching the modulator from the off state to the on state, the \alpha-parameter varies significantly. Effective, large-signal \alpha-parameters provide a convenient and concise description of the modulator chirp. For a multiple quantum well Mach-Zehnder modulator, a comparison is made between four effective \alpha-parameters; a transmission performance \alpha-parameter, an on/off \alpha-parameter, a 3 dB \alpha-parameter and a chirp \alpha-parameter. Both conventional and phase-shifted modulators are considered.
[IEEE ]
PDF Article
More Like This
Low-voltage, high-extinction-ratio, Mach-Zehnder silicon optical modulator for CMOS-compatible integration
Jianfeng Ding, Hongtao Chen, Lin Yang, Lei Zhang, Ruiqiang Ji, Yonghui Tian, Weiwei Zhu, Yangyang Lu, Ping Zhou, and Rui Min
Opt. Express 20(3) 3209-3218 (2012)
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription