Share Email Print
cover

Proceedings Paper

Edge-emitting diode lasers with narrow circular beam output
Author(s): Lijie Wang; Cunzhu Tong; Yugang Zeng; Yongqiang Ning; Lijun Wang
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We report near circular beam output from 808 nm edge-emitting diode lasers based on Bragg reflection waveguide design. Increasing quantum well number combined with reducing defect layer index and thickness was used to achieve high power output and extremely low vertical far field divergence. The TQW-BRLs achieve the lowest vertical divergence of 4.91° (full width at half maximum) and 9.8° (95% power). The maximum power of 4.6 W was achieved in the mounted DQW-BRL device under continuous-wave operation, being limited by thermal rollover.

Paper Details

Date Published: 4 May 2015
PDF: 6 pages
Proc. SPIE 9543, Third International Symposium on Laser Interaction with Matter, 95431D (4 May 2015); doi: 10.1117/12.2182314
Show Author Affiliations
Lijie Wang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Cunzhu Tong, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Yugang Zeng, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Yongqiang Ning, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Lijun Wang, Changchun Institute of Optics, Fine Mechanics and Physics (China)


Published in SPIE Proceedings Vol. 9543:
Third International Symposium on Laser Interaction with Matter
Yury M. Andreev; Zunqi Lin; Xiaowu Ni; Xisheng Ye, Editor(s)

© SPIE. Terms of Use
Back to Top