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(110) quantum well based spin VCSELs

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2 Author(s)
Hitoshi Kawaguchi ; Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5, Takayama-cho, Ikoma, 630-0192, Japan ; Shinji Koh

A vertical-cavity surface-emitting laser (VCSEL) based on (110) InGaAs/GaAs multiple quantum wells (MQWs) was fabricated and characterized. Circularly polarized lasing by optical pumping was demonstrated. A high degree of circular polarization, 0.94, was observed at 77 K, reflecting the long electron spin relaxation time in the (110) MQWs.

Published in:

2010 International Conference on Advanced Optoelectronics and Lasers

Date of Conference:

10-14 Sept. 2010