Extremely small vertical far-field angle of InGaAs-AlGaAs quantum-well lasers with specially designed cladding structure

Kuo-Jui Lin*, Shun-Tung Yen, Chien Ping Lee, Der Cherng Liu

*此作品的通信作者

研究成果: Article同行評審

42 引文 斯高帕斯(Scopus)

摘要

We report on a very small vertical far-field angle achieved by lasers with a specially designed structure. For an InGaAs-AlGaAs quantum-well laser with a 2.5-μm-wide ridge waveguide, the far-field pattern has a vertical far-field angle of 13° and a lateral far-field angle of 8°. Meanwhile, the threshold current remains acceptably low (≈36 mA for a 500-μm-long cavity). The slope efficiency of the L-I characteristic is high (>0.9 W/A) compared to that of the conventional laser.

原文English
頁(從 - 到)1588-1590
頁數3
期刊IEEE Photonics Technology Letters
8
發行號12
DOIs
出版狀態Published - 12月 1996

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