Low-threshold and high-efficiency operation of 1.5 μm distributed reflector laser with DFB grating and Q-wire DBR sections

被引：6
|
作者：
Ohira, K [1 ]
Murayama, T [1 ]
Hirose, M [1 ]
Yagi, H [1 ]
Tamura, S [1 ]
Arai, S [1 ]
机构：
[1] Tokyo Inst Technol, Quantum Nanoelectron Res Ctr, Meguro Ku, Tokyo 1528552, Japan
来源：
ELECTRONICS LETTERS | 2004年 / 40卷 / 20期
关键词：
D O I：
10.1049/el:20046306
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A low-threshold and high-efficiency distributed reflector laser consisting of active distributed feedback and quantum-wire distributed Bragg reflector sections has been demonstrated. A threshold current I-th as low as 2.5 mA (j(th) = 190 A/cm(2)), an external differential quantum efficiency from the front facet of 36%, and a submode suppression ratio of 54 dB at a bias current of twice the threshold current were obtained for an active section length of 300 mum with a stripe width of 4.4 mum.
引用
收藏
页码：1269 / 1271
页数：3
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