Research on frequency stabilization and offset frequency locking for coherent CO2 laser radar

Dayong Zhu; Xuecai Yu; Naigiong Yie; Zuowen Wan

doi:10.1117/12.59228

1 June 1992 Research on frequency stabilization and offset frequency locking for coherent CO₂ laser radar

Dayong Zhu, Xuecai Yu, Naigiong Yie, Zuowen Wan

Proceedings Volume 1633, Laser Radar VII: Advanced Technology for Applications; (1992) https://doi.org/10.1117/12.59228
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

Abstract

This paper describes a coherent CO2 laser system. The master laser is stabilized over its tuning range by NH2D Stark cell and the local laser is offset frequency-locked by an electric loop. Error signal produced by NH2D Stark cell is analyzed and the phase fluctuation of the heterodyne signal due to noises is discussed. A 23Hz Allan variance for the beating signal between laser beams has been achieved at 1 s gate time.

Citation Download Citation

Dayong Zhu, Xuecai Yu, Naigiong Yie, and Zuowen Wan "Research on frequency stabilization and offset frequency locking for coherent CO₂ laser radar", Proc. SPIE 1633, Laser Radar VII: Advanced Technology for Applications, (1 June 1992); https://doi.org/10.1117/12.59228

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