Single-mode surface-emitting DFB lasers with a large-area oxidized aperture based on the surface grating

被引：6
|
作者：
Liu, Can [1 ]
Zhang, Pengfei [1 ]
Xiang, Mingwen [1 ]
Ma, Xiang [1 ]
Jiang, Chun [1 ]
Tang, Bao [2 ]
Lu, Qiaoyin [1 ]
Guo, Weihua [1 ]
机构：
[1] Wuhan Natl Lab Optoelect, 1037 Luoyu Rd, Wuhan, Peoples R China
[2] China Informat & Commun Technol Grp Corp, Wuhan 430074, Peoples R China
来源：
OPTICS LETTERS | 2020年 / 45卷 / 13期
基金：
中国国家自然科学基金;
关键词：
VCSEL; TRANSMISSION;
D O I：
10.1364/OL.394744
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose and experimentally demonstrate an 850 nm single-mode surface-emitting distributed feedback laser based on the surface grating. The laser composes a secondorder grating section sandwiched by two first-order grating sections. The second-order grating provides not only surface emission, but also phase shift to remove the emission degeneracy. A high side-mode suppression ratio of 47 dB has been achieved. By employing a large-area rectangle-shaped oxidized aperture, a low threshold current of 1.8 mA and a low differential resistance of 59 Omega are successfully achieved. in a horizontal-cavity surface-emitting laser. (C) 2020 Optical Society of America
引用
收藏
页码：3573 / 3576
页数：4
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