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21 August 2009 High-efficiency pump-resonant quasi-phase-matched frequency doublers with flattop broadband responses
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Abstract
Considering the singly pump-resonance in a lossy lithium niobate waveguide with quasi-phase-matched apodized stepchirped domains as a broadband frequency doubler, the optimized values of back-facet reflectivity and input power have been calculated to obtain the maximum efficiency envelope of resonant modes while the bandwidth remains almost the same as the non-resonant waveguide.
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Amirhossein Tehranchi and Raman Kashyap "High-efficiency pump-resonant quasi-phase-matched frequency doublers with flattop broadband responses", Proc. SPIE 7420, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications III, 74201C (21 August 2009); https://doi.org/10.1117/12.830686
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