Abstract
The effect of gas composition on a HyBrID copper vapor laser has been experimentally investigated by changing a gas mixture combination of hydrogen halide gas HBr and HI with a buffer gas comprising He, Ne, and Ar under the same operating conditions. It is observed that the output power characteristics is strongly influenced by the gas combination. A maximum output power of 80 W is obtained with gas combinations of both HBr and HI gas with Ne buffer gas. On using He buffer gas, the maximum output power decreases to 40% of that with HBr and Ne, and to 25% of that with HI and Ne. Laser action is not observed at all with Ar buffer gas. At a high pulse repetition frequency of more than 17 kHz, it is found that the gas combination of HI with Ne can produce a higher output power than that with HBr. The mechanism responsible for the difference in characteristics is discussed.
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