Abstract
Continuous-wave gas lasers operating in cadmium and selenium vapors are convenient sources of radiation for optical information-processing systems. However, in a whole series of cases in which a large value of the signal-to-noise ratio is necessary, the high noise level in the emission of lasers of the cataphoresis type places a restriction on their use. The noise level in the emission of a helium-cadmium laser operating at 441.6 nm reaches 25% [i]. At the present time there is no unified opinion regarding the reason for the appearance of such strong noise.
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