Stable single-mode operation of 894.6 nm VCSEL at high temperatures for Cs atomic sensing

In this paper, stable single-mode operation at high temperatures is produced by the surface-relief-integrated vertical cavity surface emitting laser（VCSEL）. The gain-cavity mode detuning technique is employed to realize high operating temperatures for the VCSEL. The surface relief is etched in the c...

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Bibliographic Details
Published in:Chinese physics B 2017-06, Vol.26 (7), p.130-133
Main Author: 向磊 张星 张建伟 宁永强 Werner Hofmann 王立军
Format: Article
Language:English
Subjects:
VCSEL
单模工作
垂直腔面发射激光器
工作温度
表面浮雕
铯原子
阈值电流
高温稳定
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Summary:In this paper, stable single-mode operation at high temperatures is produced by the surface-relief-integrated vertical cavity surface emitting laser（VCSEL）. The gain-cavity mode detuning technique is employed to realize high operating temperatures for the VCSEL. The surface relief is etched in the centre of the top side as a mode discriminator for the fundamental mode output, and the threshold current minimum is 1.94 mA at high temperatures by the gain-cavity mode detuning technique. Maximum single-fundamental-mode output power of 0.45 mW at 80℃ is obtained, and the side mode suppression ratios（SMSRs） are more than 30 dB with increasing temperature and current, respectively.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/26/7/074209