Stable single-mode operation of 894.6 nm VCSEL at high temperatures for Cs atomic sensing
Stable single-mode operation of 894.6 nm VCSEL at high temperatures for Cs atomic sensing
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894.6 nm VCSEL 在高温下稳定单模运行，用于铯原子传感
DOI：
10.1088/1674-1056/26/7/074209
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发表时间：
2017
影响因子：
1.7
通讯作者：
Wang Li-Jun
中科院分区：
文献类型：
--
作者：
Xiang Lei;Zhang Xing;Zhang Jian-Wei;Ning Yong-Qiang;Hofmann Werner;Wang Li-Jun
本文利用表面浮雕集成的垂直腔面发射激光器（VCSEL）实现了高温下稳定的单模工作。增益腔模式失谐技术被用来实现VCSEL的高工作温度。表面浮雕被蚀刻在顶侧的中心作为基模输出的模隙，并且通过增益腔模失谐技术在高温下的阈值电流最小值为1.94 mA。在80 °C时获得了0.45 mW的最大单基模输出功率，边模抑制比（SMSR）随温度和电流的增加均大于30 dB。
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 °C is obtained, and the side mode suppression ratios (SMSRs) are more than 30 dB with increasing temperature and current, respectively.