In-situ monitoring of the optical cavity of diffraction-grating line-selection CO2 laser by Wang's method

Yuzhi Wang

doi:10.1117/12.424652

24 April 2001 In-situ monitoring of the optical cavity of diffraction-grating line-selection CO₂ laser by Wang's method

Yuzhi Wang

Proceedings Volume 4270, Laser Resonators IV; (2001) https://doi.org/10.1117/12.424652
Event: Photonics West 2001 - LASE, 2001, San Jose, CA, United States

Abstract

When adjusting the resonator of a half-infracavity or an extracavity of gas lasers, a He—Ne laser beam was usually used. When the He—Ne laser beam is tuned-in the light-axis ofthe gas laser, a reflecting light from the Brewster window can be seen clearly. While if another visible laser light ( He—Ne light also good) is sent inversely along the path ofthe above reflecting lights this light can be sent into the resonator via the Brewster window. Thus, a light-probe is created for in situ monitoring the optical cavity. Practice showed that this method is especially useful for monitoring the cavity of diffraction-grating line-selection CO2 lasers.

Citation Download Citation

Yuzhi Wang "In-situ monitoring of the optical cavity of diffraction-grating line-selection CO₂ laser by Wang's method", Proc. SPIE 4270, Laser Resonators IV, (24 April 2001); https://doi.org/10.1117/12.424652

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