High-power 780-nm single-frequency linearly polarized laser

M. Y. Vyatkin; A. G. Dronov; M. A. Chernikov; D. V. Gapontsev; V. P. Gapontsev

doi:10.1117/12.594506

22 April 2005 High-power 780-nm single-frequency linearly polarized laser

M. Y. Vyatkin, A. G. Dronov, M. A. Chernikov, D. V. Gapontsev, V. P. Gapontsev

Proceedings Volume 5709, Fiber Lasers II: Technology, Systems, and Applications; (2005) https://doi.org/10.1117/12.594506
Event: Lasers and Applications in Science and Engineering, 2005, San Jose, California, United States

Abstract

In this work we represent a highly efficient (>20%) CW second harmonic generation in PPKTP and PPLN crystals. As a fundamental source we used a high power (>24W) single-frequency (<50kHz linewidth) linearly polarized CW Er:Yb fiber laser. This laser was used in a single pass schematic to achieve more than 5W average power SHG in 780nm. Single pass conversion efficiency of >20% for PPLN and >7% for PPKTP was demonstrated. We also demonstrate a possibility of single mode fiber delivery for this SHG source with excellent beam quality (M² <1.1). Pump power dependency of conversion efficiency and other SHG characteristics for PPLN and PPKTP would be presented and compared.

Citation Download Citation

M. Y. Vyatkin, A. G. Dronov, M. A. Chernikov, D. V. Gapontsev, and V. P. Gapontsev "High-power 780-nm single-frequency linearly polarized laser", Proc. SPIE 5709, Fiber Lasers II: Technology, Systems, and Applications, (22 April 2005); https://doi.org/10.1117/12.594506

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