Wavelength-stabilized fiber-coupled diode laser with 500 W output and 20 mm × mrad beam quality

D. M. Grasso; N. Shou; H. Chen; R. Pathak; P. Liang; S. D. Roh; D. Lee

doi:10.1117/12.921592

7 May 2012 Wavelength-stabilized fiber-coupled diode laser with 500 W output and 20 mm•mrad beam quality

D. M. Grasso, N. Shou, H. Chen, R. Pathak, P. Liang, S. D. Roh, D. Lee

Proceedings Volume 8381, Laser Technology for Defense and Security VIII; 83810K (2012) https://doi.org/10.1117/12.921592
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

We report the development of a fiber-coupled diode laser module with high spatial and spectral brightness. Four arrays of diode laser bars are multiplexed using polarization and narrow-band wavelength combination. The module achieves 500 W of output power from a 200 μm, 0.2 NA fiber. The output spectrum, composed of contributions from more than 150 emitters, is narrowed using VBGs and has nearly 100% content within +/- 1.5 nm of 975 nm at full power.

Citation Download Citation

D. M. Grasso, N. Shou, H. Chen, R. Pathak, P. Liang, S. D. Roh, and D. Lee "Wavelength-stabilized fiber-coupled diode laser with 500 W output and 20 mm•mrad beam quality", Proc. SPIE 8381, Laser Technology for Defense and Security VIII, 83810K (7 May 2012); https://doi.org/10.1117/12.921592

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