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Surface mode coupling in GaAs/AlGaAs laser diodes - a new concept for a single laser mode emission

✍ Scribed by A. Köck; S. Freisleben; C. Gmachl; A. Golshani; E. Gomik; L. Korte; M. Rosenberger; P.L. Souza

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 185 KB
Volume: 15
Category: Article
ISSN: 0749-6036
DOI: 10.1006/spmi.1994.1053

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✦ Synopsis

We present a new concept for a single mode laser diode. This concept is based on the strong coupling between the laser mode propagating in the active region and a surface mode on top of the laser diode. By this we achieve both a single-mode-like operation and a surface emission. We present a model which explains qualitatively the emission spectrum and which allows an optimization with respect to real single mode operation. The major advantage of this type of laser diode is its simple fabrication.The device utilizes the well established technique of the conventional striped laser and requires no regrowth.

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