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Acoustic effects in halide lasers

Oscillations in the output power of halide lasers were recorded by varying the excitation frequency from 11.7 to 30 kHz. An effect arises in the laser tube, which performs both as an optical and an acoustic resonator at the acoustic resonant frequencies, just like other metal vapor lasers. It is shown that a similar effect occurs when amplifying the parameters of lasers. In other words, the oscillatory behavior of laser output power comes from the competition between the microscopic laser parameters and the excitation frequency as an operational and macroscopic parameter.