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Proceedings Paper

Effect of ridge structure on electro-optical characteristics of ridge-waveguide lasers with low vertical divergence based on photonic crystal structure
Author(s): Shaoyu Zhao; Aiyi Qi; Hongwei Qu; Xuyan Zhou; Yuzhe Lin; Yufei Wang; Wanhua Zheng
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Paper Abstract

Ridge-waveguide (RW) lasers based on photonic crystal structure were fabricated and measured. We investigated the effect of residual layer thickness (corresponding to etching depth) and ridge width on electro-optical characteristics of RW lasers. For deep-etching RW lasers, although lateral beam quality factor M2 is better than that of shallow-etching RW lasers, the other characteristics such as output power are much less than that of shallow-etching RW lasers. The calculating results indicate that RW lasers with ridge width w ≥ 8 μm will operate in mixing mode. The experimentally results of various ridge width RW lasers show that RW laser with 7 μm ridge operated in single mode over the whole measurement range and RW laser with 8 μm ridge change from single-mode operation to mixing-mode operation with the increasing of driving current. The device with 7-μm-wide ridge and 3-mm-long cavity obtain 2 W single-transverse-mode optical power and 59% maximum power conversion efficiency. The lateral beam quality factors M2 values are less than 1.7 over the whole measuring range.

Paper Details

Date Published: 24 October 2017
PDF: 6 pages
Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 104572B (24 October 2017); doi: 10.1117/12.2284797
Show Author Affiliations
Shaoyu Zhao, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Aiyi Qi, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Hongwei Qu, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Xuyan Zhou, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Yuzhe Lin, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Yufei Wang, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Wanhua Zheng, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 10457:
AOPC 2017: Laser Components, Systems, and Applications
Shibin Jiang; Lijun Wang; Lan Jiang; Long Zhang, Editor(s)

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