Numerical simulation and experiment of high brightness tapered lasers

被引：4

作者：

Li, Jing ^{[1
]}

Qiu, Yuntao ^{[1
]}

Cao, Yinhua ^{[1
]}

Qin, Wenbin ^{[1
]}

Liu, Youqiang ^{[1
]}

Zeng, Xiaodi ^{[1
]}

Xie, Wenjun ^{[1
]}

Yan, Anru ^{[1
]}

Wang, Zhiyong ^{[1
]}

机构：

[1] Beijing Univ Technol, Inst Laser Engn, 100 Pingleyuan, Beijing 100124, Peoples R China

来源：

OPTIK | 2018年 / 158卷

关键词：

High brightness; Tapered laser; Angular spectrum propagation; SEMICONDUCTOR-LASERS; AMPLIFIERS; FEEDBACK; DESIGN; DIODES; POWER; MODEL;

D O I：

10.1016/j.ijleo.2017.12.158

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The optical properties of a tapered laser, which can be used to improve laser beam quality and generate a high brightness optical beam, are simulated and the tapered laser is fabricated. The beam quality, the index difference, and the index difference dependence on taper angle are studied. A tapered diode laser with a ridge waveguide is introduced and formed through etching the wafer with asymmetrical waveguide structure and double quantum wells. A high brightness power is achieved due to the combination of the ridge waveguide and the taper waveguide. In the experiment, the laser delivers 978 nm, 8 W CW with an 11.96A current. The beam quality factor M-2 in the vertical and lateral directions is measured at 1.42 and 2.21, respectively. (C) 2017 Elsevier GmbH. All rights reserved.

引用

页码：502 / 507

页数：6

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