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  • Chinese Optics Letters
  • Vol. 20,
  • Issue 2,
  • pp. 021407-
  • (2022)

Design and fabrication of a compact, high-performance interference-filter-based external-cavity diode laser for use in the China Space Station

Lingqiang Meng, Pengyang Zhao, Fanchao Meng, Long Chen, Yong Xie, Yikun Wang, Wei Bian, Jianjun Jia, Tao Liu, Shougang Zhang, and Jianyu Wang

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Abstract

A hertz-linewidth ultra-stable laser (USL), which will be used to detect the clock transition line, in a strontium optical clock will be launched into the China Space Station (CSS) in late 2022. As the core of the USL, an interference-filter-based external-cavity diode laser (IF-ECDL) was developed. The IF-ECDL has a compact, stable, and environmentally insensitive design. Performances of the IF-ECDL are presented. The developed IF-ECDL can pass the aerospace environmental tests, indicating that the IF-ECDL can be suitable for space missions in the CSS.

© 2022 Chinese Laser Press

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