Coupling Performance Enhancement of GaSb-Based Single-Transverse-Mode Lasers with Reduced Beam Divergence Obtained via near Field Modulation

Coupling Performance Enhancement of GaSb-Based Single-Transverse-Mode Lasers with Reduced Beam Divergence Obtained via near Field Modulation

Symmetric narrow waveguide structure has been developed and fabricated to achieve low beam divergence and improved coupling performance of the 1.95 μm GaSb-based single-transverse-mode diode lasers. The near-field expansion effect of the narrowed 150 nm vertical waveguide design leads to a reduced f...

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Bibliographic Details
Main Authors: Tianfang Wang, Chengao Yang, Yihang Chen, Hongguang Yu, Jianmei Shi, Xiangbin Su, Yu Zhang, Yingqiang Xu, Haiqiao Ni, Zhichuan Niu
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Photonics
Subjects:
GaSb-based diode lasers
single-transverse-mode
vertical beam divergence
fiber coupling
Online Access:https://www.mdpi.com/2304-6732/9/12/942

Internet

https://www.mdpi.com/2304-6732/9/12/942

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