Heat mitigation with frequency selective passive PT symmetry in active Raman media

Galina Nemova; Christophe Caloz

doi:10.1117/12.2577871

5 March 2021 Heat mitigation with frequency selective passive PT symmetry in active Raman media

Galina Nemova, Christophe Caloz

Proceedings Volume 11702, Photonic Heat Engines: Science and Applications III; 117020N (2021) https://doi.org/10.1117/12.2577871
Event: SPIE OPTO, 2021, Online Only

Abstract

We propose to mitigate heat generation in Raman lasers and amplifiers by coupling the Raman active waveguide to a wavelengthselective dissipative waveguide. The DW supports (lossy) propagation only at the anti-Stokes wavelength, and hence evacuates the anti- Stokes photons out of the Raman waveguide without affecting the Stokes and pump photons. In this manner, it suppresses the reversed CARS cycles that would otherwise result into heat generation in the Raman waveguide. This mechanism is investigated for different phase mismatches. It is demonstrated represent a promising new avenue to enhance cooling in Raman lasers and amplifiers.

Conference Presentation

Citation Download Citation

Galina Nemova and Christophe Caloz "Heat mitigation with frequency selective passive PT symmetry in active Raman media", Proc. SPIE 11702, Photonic Heat Engines: Science and Applications III, 117020N (5 March 2021); https://doi.org/10.1117/12.2577871

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