Investigation of SOI raman lasers for mid-infrared gas sensing

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In this paper, the investigation and detailed modeling of a cascaded Raman laser, operating in the midwave infrared region, is described. The device is based on silicon-on-insulator optical waveguides and a coupled resonant microcavity. Theoretical results are compared with recent experiments, demonstrating a very good agreement. Design criteria are derived for cascaded Raman lasers working as continuous wave light sources to simultaneously sense two types of gases, namely C(2)H(6) and CO(2), at a moderate power level of 130 mW.




Passaro, V. M. N., & de Leonardis, F. (2009). Investigation of SOI raman lasers for mid-infrared gas sensing. Sensors, 9(10), 7814–7836.

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