L. Sterczewski, M. Bagheri, C. Frez, C. Canedy, I. Vurgaftman, Mijin Kim, C. Kim, C. Merritt, W. Bewley, J. Meyer, C. Teng, G. Wysocki
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引用次数: 0
Abstract
By exploiting the bi-functional operation capability of interband cascade laser (ICL) frequency combs, we have utilized the laser medium not only for comb generation, but also as a room-temperature photodetector with near-GHz bandwidth for multi-heterodyne beating of the comb lines. Our self-contained platform consuming less than 2 W of electrical power enables free-running room-temperature broadband dual-comb spectroscopy of 1,1 difluoroethane with ~3% standard deviation in 2 ms over 600 GHz of optical bandwidth around 3.6 µm. We will discuss progress toward the optimization of ICL combs for realizing compact, low-power chemical sensors operating in the MWIR.
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