OPTICAL MODULATOR FOR MULTICOMPONENT GAS ANALYZER OF INDUSTRIAL EMISSIONS

Abstract

A germanium infrared modulator with a modulation depth of up to 80% in the wavelength range of 1.8 ... 20 mkm for multi-component gas analyzers of industrial emissions was developed. Its characteristics are: the dependence of the efficiency of the modulation from the injection current and the pulse duration given. The prospect of application of the modulator gas analyzers, as well as ways to improve its efficiency and uniformity of the modulation are shown.