Design of wavelength-locking module for VCSEL

Jing Lin; Pengling Dong; Shijia Wang; Zhiwei Cai; Jinhai Zhang; Jiqing Lian

doi:10.1117/12.2611107

14 October 2021 Design of wavelength-locking module for VCSEL

Jing Lin, Pengling Dong, Shijia Wang, Zhiwei Cai, Jinhai Zhang, Jiqing Lian

Proceedings Volume 11930, International Conference on Mechanical Engineering, Measurement Control, and Instrumentation; 1193026 (2021) https://doi.org/10.1117/12.2611107
Event: International Conference on Mechanical Engineering, Measurement Control, and Instrumentation (MEMCI 2021), 2021, Guangzhou, China

Abstract

Aiming at the wavelength locking of vertical cavity surface emitting lasers (VCSEL), the principle of atomic transition spectrum locking based on low frequency modulation and demodulation was analyzed, and the laser wavelength locking circuits were designed and realized by using digital phase detection algorithm. VCSEL wavelength locking circuits were mainly composed of temperature control circuit, laser driven current source and digital phase detector, and the principle design of each circuit was given respectively. The designed VCSEL wavelength locking circuits have been tested and successfully applied to coherent population trapping (CPT) atomic clock, locked the multi-spectrum of ¹³³Cs and realized the observation of CPT signal.

Citation Download Citation

Jing Lin, Pengling Dong, Shijia Wang, Zhiwei Cai, Jinhai Zhang, and Jiqing Lian "Design of wavelength-locking module for VCSEL", Proc. SPIE 11930, International Conference on Mechanical Engineering, Measurement Control, and Instrumentation, 1193026 (14 October 2021); https://doi.org/10.1117/12.2611107

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