All-fiber passive coherent combining of high power lasers

Baishi Wang; Anthony D. Sanchez

doi:10.1117/1.3613945

1 November 2011 All-fiber passive coherent combining of high power lasers

Baishi Wang, Anthony D. Sanchez

Author Affiliations +

Optical Engineering, Vol. 50, Issue 11, 111606 (November 2011). https://doi.org/10.1117/1.3613945

Abstract

We report >100 W output power by coherently combining two, three, and four high power lasers in all-fiber and all-passive configurations using Yb fiber laser cavities operating at a wavelength of 1080 nm with polarization maintaining fibers and 2×2 fused fiber couplers. We present the power and number scaling characteristics of the laser arrays and compare their beam combining efficiencies in different array configurations. We experimentally show beam combining efficiency degradation with increase of laser power and number of lasers. In addition, we discuss the effect of fiber nonlinearity on beam combining efficiency.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Baishi Wang and Anthony D. Sanchez "All-fiber passive coherent combining of high power lasers," Optical Engineering 50(11), 111606 (1 November 2011). https://doi.org/10.1117/1.3613945

Published: 1 November 2011

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