Optimization of kW-class fiber splices and packages for ultra-high-power applications

Johan Boullet; Yves Vincent Bardin; Michael Bérisset; Christophe Pierre

doi:10.1117/12.2583499

19 April 2021 Optimization of kW-class fiber splices and packages for ultra-high-power applications

Johan Boullet, Yves Vincent Bardin, Michael Bérisset, Christophe Pierre

Author Affiliations +

Proceedings Volume 11667, Components and Packaging for Laser Systems VII; 116670I (2021) https://doi.org/10.1117/12.2583499
Event: SPIE LASE, 2021, Online Only

Abstract

Thermal effects of critical passive and active kilowatt-splices in all fiber master-oscillator power amplifier (MOPA) are investigated. Proper designs for cooling apparatus are proposed and demonstrated experimentally, for the purpose of minimizing splice heating which is critical for the reliability of high power operation. By using these optimized methods, we have demonstrated numerically and experimentally for standard 125 µm, 200 µm and 400 µm Yb fibers temperature rise of critical active splice < 0,1 K/W.

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Johan Boullet, Yves Vincent Bardin, Michael Bérisset, and Christophe Pierre "Optimization of kW-class fiber splices and packages for ultra-high-power applications", Proc. SPIE 11667, Components and Packaging for Laser Systems VII, 116670I (19 April 2021); https://doi.org/10.1117/12.2583499

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