1 W at 490 nm on a compact micro-optical bench by single-pass second harmonic generation

C. Fiebig; G. Blume; D. Feise; D. Jedrzejczyk; A. Sahm; M. Uebernickel; K. Paschke; G. Erbert

doi:10.1117/12.851720

17 February 2010 1 W at 490 nm on a compact micro-optical bench by single-pass second harmonic generation

C. Fiebig, G. Blume, D. Feise, D. Jedrzejczyk, A. Sahm, M. Uebernickel, K. Paschke, G. Erbert

Proceedings Volume 7582, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications IX; 75821O (2010) https://doi.org/10.1117/12.851720
Event: SPIE LASE, 2010, San Francisco, California, United States

Abstract

We demonstrate a compact 1 W laser module at 490 nm using a Distributed Bragg Reflector tapered diode laser in single-path second harmonic generation (SHG) configuration. The frequency conversion is performed with a 3 cm periodically poled MgO:LiNbO₃ crystal on a micro-optical bench having a footprint of 2.5 cm₃. 1 W blue light could be achieved at a pump power of about 9.5 W resulting in an optical conversion efficiency of about 10 %. The output power stability is better than ± 2% and the blue laser beam shows an excellent beam quality of M²_σ = 1.2 in vertical and M²_σ = 2 in lateral direction, respectively.

Citation Download Citation

C. Fiebig, G. Blume, D. Feise, D. Jedrzejczyk, A. Sahm, M. Uebernickel, K. Paschke, and G. Erbert "1 W at 490 nm on a compact micro-optical bench by single-pass second harmonic generation", Proc. SPIE 7582, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications IX, 75821O (17 February 2010); https://doi.org/10.1117/12.851720

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