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Journal Articles Optics Letters Year : 2019

Second-harmonic-generation enhancement in cavity resonator integrated grating filters

François Renaud
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  • PersonId : 926184
Antoine Monmayrant
Stéphane Calvez
Olivier Gauthier-Lafaye
Anne-Laure Fehrembach
Evgeny Popov
  • Function : Author

Abstract

We demonstrate numerically and experimentally second-harmonic generation (SHG) in a cavity resonator integrated grating filter (CRIGF, a planar cavity resonator made of Bragg grating reflectors) around 1550 nm. SHG is modeled numerically for several different systems, including a thin plane layer of LiNbO3 without and with a grating coupler to excite a waveguide mode. We demonstrate that when the waveguide mode is confined to a CRIGF, designed to work with focused incident beams, the SHG power is increased more than 30 times, compared to the case of a single grating coupler used with an almost collimated pump beam.
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Dates and versions

hal-02341106 , version 1 (13-05-2020)

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François Renaud, Antoine Monmayrant, Stéphane Calvez, Olivier Gauthier-Lafaye, Anne-Laure Fehrembach, et al.. Second-harmonic-generation enhancement in cavity resonator integrated grating filters. Optics Letters, 2019, 44 (21), pp.5198-5201. ⟨10.1364/OL.44.005198⟩. ⟨hal-02341106⟩
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