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arXiv · 1702.03821

A high-power waveguide resonator second harmonic device with external conversion efficiency up to 75%

M. Stefszky·R. Ricken·C. Eigner·V. Quiring·H. Herrmann·C. Silberhorn
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Abstract

We report on a highly efficient waveguide resonator device for the production of 775 nm light using a titanium indiffused LiNbO3waveguide resonator. When scanning the resonance the device produces up to 110 mW of second harmonic power with 140 mW incident on the device - an external conversion efficiency of 75 %. The cavity length is also locked, using a Pound-Drever-Hall type locking scheme, involving feedback to either the cavity temperature or the laser frequency. With laser frequency feedback a stable output power of approximately 28 mW from a 52 mW pump is seen over one hour.

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M. Stefszky, R. Ricken, C. Eigner, V. Quiring, H. Herrmann, C. Silberhorn. 2017-02-09. A high-power waveguide resonator second harmonic device with external conversion efficiency up to 75%. https://doi.org/10.1088/2040-8986%2Faac1d5

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