Strip‐loaded semiconductor ring lasers employing multimode interference output couplers

Autor:	I. Gontijo, J.S. Roberts, R.M. DelaRue, P.J.R. Laybourn, Thomas F. Krauss
Rok vydání:	1994
Předmět:	Materials science Physics and Astronomy (miscellaneous) business.industry Output coupler Laser Semiconductor laser theory law.invention Optics Quantum dot laser law Optoelectronics Continuous wave Quantum efficiency business Tunable laser Quantum well
Zdroj:	Applied Physics Letters. 64:2788-2790
ISSN:	1077-3118 0003-6951
Popis:	Strip‐loaded semiconductor ring lasers were successfully fabricated in the GaAs/AlGaAs material system. The radius was 400 μm and a 2×2 3 dB multimode interference coupler 320 μm long was used to extract the output signal. Devices operated continuous wave at 140 mA threshold current with a differential quantum efficiency of 7% per output, which we believe is the highest value reported to date for lasers of this type.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::29043be9c6aa089780181bc19068d17d https://doi.org/10.1063/1.111446 Zobrazit plný text záznamu