1 June 1992 Research on frequency stabilization and offset frequency locking for coherent CO2 laser radar
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Proceedings Volume 1633, Laser Radar VII: Advanced Technology for Applications; (1992); doi: 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.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dayong Zhu, Xuecai Yu, Naigiong Yie, 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); doi: 10.1117/12.59228; https://doi.org/10.1117/12.59228
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KEYWORDS
Laser stabilization

Carbon dioxide lasers

Absorption

Heterodyning

Signal detection

Linear filtering

LIDAR

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