Abstract
This paper presents a technological study aimed at producing buried heterostructures for single-mode semiconductor lasers operating in the wavelength range 1651–1662 nm. We have fabricated laser diodes operating at a wavelength corresponding to an absorption band of methane. The effect of temperature on the optical emission spectrum of the laser diodes has been examined. The results demonstrate the possibility of tuning their emission spectrum in the range from 1651 to 1662 nm and producing smart fiber-optic systems for the remote monitoring of the methane concentration.
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