Gain property on supersonic flow TEA-CO2 laser in double-pulse operation

Go Imada; Motoki Tateishi; Masataro Suzuki; Wataru Masuda

doi:10.1117/12.2009567

30 January 2013 Gain property on supersonic flow TEA-CO₂ laser in double-pulse operation

Go Imada, Motoki Tateishi, Masataro Suzuki, Wataru Masuda

Proceedings Volume 8677, XIX International Symposium on High-Power Laser Systems and Applications 2012; 86770I (2013) https://doi.org/10.1117/12.2009567
Event: XIX International Symposium on High-Power Laser Systems and Applications, 2012, Istanbul, Turkey

Abstract

In order to contribute toward the development of a highly-repetitive TEA-CO₂ laser, small-signal gains are measured for a double-pulse operation of a laser medium in a supersonic flow at a Mach number of 2. It is found that the time interval of the double-pulse operation should be longer than 60 μs in order to have the gain of the subsequent pulse comparable to that of the preceding one. It is also found that the gain is enhanced with a low-temperature laser medium owing to the concentration of excited CO₂ molecules in the state of a specific rotational quantum number. The results suggest the possibility that the output power of a TEA-CO₂ laser device can be increased by utilizing the supersonic flow.

Citation Download Citation

Go Imada, Motoki Tateishi, Masataro Suzuki, and Wataru Masuda "Gain property on supersonic flow TEA-CO₂ laser in double-pulse operation", Proc. SPIE 8677, XIX International Symposium on High-Power Laser Systems and Applications 2012, 86770I (30 January 2013); https://doi.org/10.1117/12.2009567

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