Inhibited-coupling HC-PCF based beam-delivery-system for high power green industrial lasers

M. Chafer; A. Gorse; B. Beaudou; Q. Lekiefs; M. Maurel; B. Debord; F. Gérôme; F. Benabid

doi:10.1117/12.2290597

20 February 2018 Inhibited-coupling HC-PCF based beam-delivery-system for high power green industrial lasers

M. Chafer, A. Gorse, B. Beaudou, Q. Lekiefs, M. Maurel, B. Debord, F. Gérôme, F. Benabid

Proceedings Volume 10513, Components and Packaging for Laser Systems IV; 1051304 (2018) https://doi.org/10.1117/12.2290597
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

We report on an ultra-low loss Hollow-Core Photonic Crystal Fiber (HC-PCF) beam delivery system (GLO-GreenBDS) for high power ultra-short pulse lasers operating in the green spectral range (including 515 nm and 532 nm). The GLOBDS- Green combines ease-of-use, high laser-coupling efficiency, robustness and industrial compatible cabling. It comprises a pre-aligned laser-injection head, a sheath-cable protected HC-PCF and a modular fiber-output head. It enables fiber-core gas loading and evacuation in a hermetic fashion. A 5 m long GLO-BDS were demonstrated for a green short pulse laser with a transmission coefficient larger than 80%, and a laser output profile close to single-mode (M² <1.3).

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M. Chafer, A. Gorse, B. Beaudou, Q. Lekiefs, M. Maurel, B. Debord, F. Gérôme, and F. Benabid "Inhibited-coupling HC-PCF based beam-delivery-system for high power green industrial lasers", Proc. SPIE 10513, Components and Packaging for Laser Systems IV, 1051304 (20 February 2018); https://doi.org/10.1117/12.2290597

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