Unidirectional beam emission from strained InGaAsP multiple-quantum-well quasistadium laser diodes

Takehiro Fukushima; Tomoko Tanaka; Takahisa Harayama

doi:10.1063/1.1920430

Unidirectional beam emission from strained InGaAsP multiple-quantum-well quasistadium laser diodes

Takehiro Fukushima, Tomoko Tanaka, Takahisa Harayama

School of Advanced Science and Engineering

Research output: Contribution to journal › Article

10 Citations (Scopus)

Abstract

We present unidirectional emission from strained InGaAsP multiple-quantum-well quasistadium laser diodes, whose resonators consist of two confocal end mirrors and two long, straight, sidewall mirrors. Far-field patterns exhibit highly directional emission at a 20° angle from the cavity axis. This angle corresponds to a unidirectional ring trajectory inside the resonator. We also report that the unidirectional emission can be explained by the phase locking of two resonator modes with different symmetry classes based on the extended Fox-Li mode calculation method.

Original language	English
Article number	171103
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	86
Issue number	17
DOIs	https://doi.org/10.1063/1.1920430
Publication status	Published - 2005 Apr 25

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ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Cite this

Fukushima, T., Tanaka, T., & Harayama, T. (2005). Unidirectional beam emission from strained InGaAsP multiple-quantum-well quasistadium laser diodes. Applied Physics Letters, 86(17), 1-3. [171103]. https://doi.org/10.1063/1.1920430

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Access to Document

10.1063/1.1920430