Transverse Mode Control and Reduction of Threshold Current in (GaAl)As Buried-Heterostructure Lasers with a Buried Optical Guide
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概要
- 論文の詳細を見る
Transverse modes of (GaAl)As buried-heterostructure (BH) lasers with a buried optical guide (BOG) are experimentally analyzed in terms of the physical parameters of lasers. A reproducible fundamental transverse mode is obtained by controlling active layer thickness, width and cross sectional geometry. A remarkable reduction in the threshold current is achieved in BH lasers with a BOG using a highly resistive (GaAl)As layer as the burying layer. A threshold current as low as 9 mA and a power conversion efficiency as high as 55% at an output of 15 mW per facet are obtained.
- 社団法人応用物理学会の論文
- 1980-10-05
著者
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Aiki Kunio
Central Research Laboratory Hitachi Ltd.
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Nakashima Hisao
Central Research Laboratory Hitachi Ltd.
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