New device of alarm and control of dewfall for laser optics

Zhaogu Cheng; Rufeng Li

doi:10.1117/12.540934

18 November 2003 New device of alarm and control of dewfall for laser optics

Zhaogu Cheng, Rufeng Li

Proceedings Volume 5063, Fourth International Symposium on Laser Precision Microfabrication; (2003) https://doi.org/10.1117/12.540934
Event: Fourth International Symposium on Laser Precision Microfabrication, 2003, Munich, Germany

Abstract

Lasers are now widely used in various industrial circumstances with changeable room conditions. If the humidity and the temperature in an operation room are not well controlled, a thin layer of water can be formed on the surfaces of laser optics by the effect of "dewfall," which could cause damages of expensive laser optics such as output coupler and/or focusing lenses. In this work, we design and develop an alarm device to monitor and control the dewfall for industrial CO₂ lasers; however, the device is also useful in other cases which require alarm and control of dewfall.

Citation Download Citation

Zhaogu Cheng and Rufeng Li "New device of alarm and control of dewfall for laser optics", Proc. SPIE 5063, Fourth International Symposium on Laser Precision Microfabrication, (18 November 2003); https://doi.org/10.1117/12.540934

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