Stable single-mode operation of 894.6 nm VCSEL at high temperatures for Cs atomic sensing
Xiang Lei1, 2, Zhang Xing1, †, Zhang Jian-Wei1, Ning Yong-Qiang1, Hofmann Werner3, Wang Li-Jun1
       

(color online) The spectra of SR-VCSEL at different temperatures of 22 °C, 50 °C, 70 °C, and 80 °C. The operating current is 4 mA.