Abstract
Coherent radiation in the 3–4 μm spectral range has been obtained for the first time in an InGaAsSb/AlGaSbAs double heterostructure grown on a GaSb substrate. It has been shown that spontaneous and coherent radiation is generated mainly as a result of interband transitions in the narrow-gap InGaAsSb layer. It has been established that the optical confinement of the electromagnetic wave is sufficient for operation of the laser up to 120 K with a square-wave supply.
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Pis#x2019;ma Zh. Tekh. Fiz. 23, 66–71 (November 26, 1997)
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Grebenshchikova, E.A., Ershov, O.G., Zhurtanov, B.E. et al. Investigation of spontaneous and coherent radiation in the 3–4 μm wavelength range in an InGaAsSb/AlGaSbAs laser heterostructure. Tech. Phys. Lett. 23, 887–889 (1997). https://doi.org/10.1134/1.1261921
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DOI: https://doi.org/10.1134/1.1261921