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Coherent beam combining of high power tapered (poster)

Abstract : We describe the coherent beam combining of three high-power tapered laser amplifiers seeded by a DFB laser at λ = 976 nm, and demonstrate a combined power of 12.9 W in a close to diffraction-limit beam at a combining efficiency of > 65%. We use individual devices on C-mounts in a multi-arm interferometer. The phase pistons of each beam are matched by automatically controlling the ridge current of the amplifiers. Increased power per element was achieved by making use of a simplified, efficiently cooled single emitter-based optical system.
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Submitted on : Tuesday, May 1, 2018 - 3:34:14 PM
Last modification on : Saturday, June 25, 2022 - 10:31:27 PM
Long-term archiving on: : Tuesday, September 25, 2018 - 1:36:49 AM


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  • HAL Id : hal-01755123, version 1


Philipp Albrodt, Marc Hanna, Frédéric Moron, J Decker, Winterfeldt M., et al.. Coherent beam combining of high power tapered (poster). 2017 IEEE High Power Diode Lasers & Systems Conference, Oct 2017, Coventry, United Kingdom. pp.15-16. ⟨hal-01755123⟩



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