Heat evacuation from active Raman media using frequency-selective dissipative coupling

We propose to use frequency-selective dissipative coupling reduce the heat generated by coherent anti-Stokes Raman scattering (CARS) reversed cycles in active media with phase mismatch. This is accomplished using a coupled-waveguide structure, which includes waveguide (RW), where Stokes signal undergoes amplification via stimulated (SSRS), and (DW), tuned wavelength so as evacuate corresponding photons from RW coupling. The DW introduces optical loss that partially offsets growth of hence suppress CARS would otherwise result into generation RW. It shown provided can very factor up 5 when mismatch compensated for optimum level between DW.2 MoreReceived 10 September 2020Accepted 30 November 2020DOI:https://doi.org/10.1103/PhysRevResearch.3.013050Published American Physical Society under terms Creative Commons Attribution 4.0 International license. Further distribution this work must maintain attribution author(s) published article's title, journal citation, DOI.Published SocietyPhysics Subject Headings (PhySH)Research AreasCooling & trappingLaser dynamicsLasersOptics lasersPhotonicsPhysical SystemsRaman lasersWaveguidesAtomic, Molecular Optical