First-order quasi-phase matched LiNbO<SUB>3</SUB> waveguide periodically poled by applying an external field for efficient blue second-harmonic generation

doi:10.1063/1.108925

First-order quasi-phase matched LiNbO₃ waveguide periodically poled by applying an external field for efficient blue second-harmonic generation

A novel method of fabricating a periodic domain structure with ideal laminar domains in LiNbO₃ by applying an external field at room temperature is proposed. The method allows a high blue beam power of 20.7 mW and a high conversion efficiency of 600%/W cm² to be obtained.

Publication:: Applied Physics Letters
Pub Date:: February 1993
DOI:: 10.1063/1.108925
Bibcode:: 1993ApPhL..62..435Y

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First-order quasi-phase matched LiNbO3 waveguide periodically poled by applying an external field for efficient blue second-harmonic generation

Abstract

First-order quasi-phase matched LiNbO₃ waveguide periodically poled by applying an external field for efficient blue second-harmonic generation