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High-power single-mode CO2laser

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1 Author(s)
Witteman, W.J. ; Philips Research Laboratories, N. V., Philips Gloeilampenfabrieken, Eindhoven, The Netherlands

The performance of a single-mode single-frequency CO2laser operating on a single rotational-vibrational transition is described. The laser is sealed off with a length of 152 cm, and it has a continuous output power of 60 watts. Mode-competition phenomena are of great importance in obtaining this high output power of high spectral purity. In-order to maintain the high output power over a long period of time, we constructed our laser with a water vapor replenisher and a bypass to reduce gas segregation in the discharge. The use of a plane parallel germanium out-coupling window creates conditions for a single rotational-vibrational transition. The experimental procedure and results are discussed.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:4 ,  Issue: 11 )