NDLI: Optimizing the bias and modulation voltages of MQW Mach-Zehnder modulators for 10 Gb/s transmission on nondispersion shifted fiber

Content Provider	IEEE Xplore Digital Library
Author	Cartledge, J.C.
Copyright Year	1983
Abstract	The chirp and optical extinction ratio of a multiple quantum-well (MQW) Mach-Zehnder modulator depend on the device design and on the voltage waveforms applied to the arm electrodes. For 10 Gb/s transmission over nondispersion shifted fiber, joint optimization of the bias and modulation voltages is considered for a conventional modulator and a /spl pi/-phase-shift modulator. Measured attenuation and phase constants for an optical signal propagating in the modulator waveguide are used to accurately model the Mach-Zehnder modulators. The influence of asymmetric Y-branch waveguides in the modulators is examined taking into consideration group velocity dispersion and self-phase modulation arising from the Kerr nonlinearity. When the modulators are operated with maximum optical extinction ratio, the dispersion limited transmission distance depends on the device design (phase-shift and Y-branch splitting ratio) and modulation format (dual drive or single drive). Optimization of the bias and modulation voltages reduces this dependence significantly, while also increasing the dispersion limited transmission distance.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	1142
Ending Page	1151
Page Count	10
File Size	257721
File Format	PDF
ISSN	07338724
Volume Number	17
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Voltage Quantum well devices Optical attenuators Optical waveguides Chirp modulation Fiber nonlinear optics Nonlinear optics Optical modulation Optical devices Extinction ratio
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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