NDLI: Carrier DC and AC capture and escape times in quantum-well lasers

Content Provider	IEEE Xplore Digital Library
Author	Chin-Yi Tsai Chin-Yao Tsai Yu-Hwa Lo Eastman, L.F.
Copyright Year	1989
Abstract	A theoretical model is proposed to study the carrier DC and AC capture and escape times in the small signal modulation response of quantum-well lasers. We derive the DC and AC capture and escape times by calculating the carrier net capture current. Our numerical results indicate that the AC capture and escape times are smaller than the DC capture and escape times. In some cases, they may be even smaller by one order of magnitude. We also find that the AC capture/escape time ratio is larger than the DC capture/escape time ratio by a factor of two. Therefore, conventional theoretical models that do not distinguish the differences between the DC and AC capture and escape times may overestimate the resonant frequency and underestimate the damping rate in the modulation response of quantum-well lasers, i.e., the AC capture and escape times limit the modulation bandwidth of quantum-well lasers more severely than that predicted by the DC capture and escape times.<>
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	599
Ending Page	601
Page Count	3
File Size	272232
File Format	PDF
ISSN	10411135
Volume Number	7
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quantum well lasers Laser theory Laser modes Bandwidth Resonant frequency Damping Threshold current Stimulated emission Carrier confinement Niobium
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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