NDLI: Velocity mismatch limits in semiconductor lasers and amplifiers

Content Provider	IEEE Xplore Digital Library
Author	Liljeberg, T. Bowers, J.E.
Copyright Year	1996
Description	Author affiliation: Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA (Liljeberg, T.)
Abstract	As modulation bandwidths for semiconductor lasers continue to increase, distributed effects become more important. The velocity mismatch between the optical field and the microwave field has long been known to be an important limit to the bandwidth of modulators, but this effect has so far been ignored in lasers and amplifiers. However, with bandwidths above 40 GHz lasers are now operating in a regime where the wavelength of the microwave field is comparable to the length of the device. Consequently, we can no longer treat the device as a lumped element, but have to consider the propagation effects, i.e. velocity mismatch and microwave propagation loss. In this work we use a simple numerical model to investigate the bandwidth limits set by the velocity mismatch, and compare the performance to that of the ideal, velocity matched case.
Starting Page	341
Ending Page	342
File Size	169582
Page Count	2
File Format	PDF
ISBN	0780338952
ISSN	10928081
DOI	10.1109/LEOS.1997.630656
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-11-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Semiconductor lasers Semiconductor optical amplifiers Masers Bandwidth Microwave devices Stimulated emission Optical modulation Microwave amplifiers Optical amplifiers Microwave propagation
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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