Highly-efficient high-power pumps for fiber lasers

V. Gapontsev; N. Moshegov; I. Berezin; A. Komissarov; P. Trubenko; D. Miftakhutdinov; I. Berishev; V. Chuyanov; O. Raisky; A. Ovtchinnikov

doi:10.1117/12.2250634

22 February 2017 Highly-efficient high-power pumps for fiber lasers

V. Gapontsev, N. Moshegov, I. Berezin, A. Komissarov, P. Trubenko, D. Miftakhutdinov, I. Berishev, V. Chuyanov, O. Raisky, A. Ovtchinnikov

Author Affiliations +

Proceedings Volume 10086, High-Power Diode Laser Technology XV; 1008604 (2017) https://doi.org/10.1117/12.2250634
Event: SPIE LASE, 2017, San Francisco, California, United States

Abstract

We report on high efficiency multimode pumps that enable ultra-high efficiency high power ECO Fiber Lasers. We discuss chip and packaged pump design and performance. Peak out-of-fiber power efficiency of ECO Fiber Laser pumps was reported to be as high as 68% and was achieved with passive cooling. For applications that do not require Fiber Lasers with ultimate power efficiency, we have developed passively cooled pumps with out-of-fiber power efficiency greater than 50%, maintained at operating current up to 22A. We report on approaches to diode chip and packaged pump design that possess such performance.

Citation Download Citation

V. Gapontsev, N. Moshegov, I. Berezin, A. Komissarov, P. Trubenko, D. Miftakhutdinov, I. Berishev, V. Chuyanov, O. Raisky, and A. Ovtchinnikov "Highly-efficient high-power pumps for fiber lasers", Proc. SPIE 10086, High-Power Diode Laser Technology XV, 1008604 (22 February 2017); https://doi.org/10.1117/12.2250634

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