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Proceedings Paper

New device of alarm and control of dewfall for laser optics
Author(s): Zhaogu Cheng; Rufeng Li
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Paper 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.

Paper Details

Date Published: 18 November 2003
PDF: 3 pages
Proc. SPIE 5063, Fourth International Symposium on Laser Precision Microfabrication, (18 November 2003); doi: 10.1117/12.540934
Show Author Affiliations
Zhaogu Cheng, Shanghai Institute of Optics and Fine Mechanics (China)
Rufeng Li, Shanghai Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 5063:
Fourth International Symposium on Laser Precision Microfabrication
Isamu Miyamoto; Andreas Ostendorf; Koji Sugioka; Henry Helvajian, Editor(s)

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