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Optical cooling of Raman lasers using CARS

Publication date 2007
B-Phot Authors Nathalie Vermeulen, Hugo Thienpont
DOI 10.1117/12.698494
N. Vermeulen, C. Debaes, and H. Thienpont, “Optical cooling of Raman lasers using CARS,” in Proc. SPIE, 2007, vol. 6461, p. 64610D.
Abstract We present a novel approach to intrinsically mitigate the heat dissipated in Raman lasers due to the pump-Stokes quantum defect. We explain the principle of this so-called "Coherent Anti-Stokes Raman Scattering (CARS)-based heat mitigation", which is based on decreasing the amount of phonons created in the Raman medium by increasing the ratio of the number of anti-Stokes photons to the number of Stokes photons coupled out of a Raman laser. To illustrate the potentialities of this optical cooling technique, we numerically demonstrate that for mid-infrared silicon-based Raman lasers the heat dissipation can be reduced with at least 35% by the use of CARS-based heat mitigation.
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