Enhanced performance of a wide-aperture copper vapour laser with hydrogen additive in neon buffer gas

Singh, Bijendra; Subramaniam, V.; Daultabad, S.; Chakraboty, Ashim
November 2010
Pramana: Journal of Physics;Nov2010, Vol. 75 Issue 5, p961
Academic Journal
wide-aperture copper vapour laser was demonstrated at ∼10 kHz rep-rate with hydrogen additive in its buffer gas. Maximum power in excess of ∼50 W (at 10 kHz) was achieved by adding 1.96% hydrogen to the neon buffer gas at 20 mbar total gas pressure. This increase in output power was about 70% as compared to ∼30 W achieved with pure neon at 5.5 kHz rep-rate. The 70% enhancement achieved was significantly higher than the maximum reported value of 50% so far in the literature. The enhancement was much higher (about 150%) as compared to its 20 W power at 10 kHz rep-rate using pure neon as the standard CVL operation.


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