Generating 3000W nanosecond laser of all-fiber structure by using high power pulsed fiber combiner

Yiming Cai; Qixin Zhu; Shijie Wang; Jianhong Shi; Lei Liao; Dapeng Yan; Jinyan Li; Cheng Li

doi:10.1117/12.2624331

27 March 2022 Generating 3000W nanosecond laser of all-fiber structure by using high power pulsed fiber combiner

Yiming Cai, Qixin Zhu, Shijie Wang, Jianhong Shi, Lei Liao, Dapeng Yan, Jinyan Li, Cheng Li

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 121695A (2022) https://doi.org/10.1117/12.2624331
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

Using self-designed large core Yb-doped fiber (100 μm / 400 μm)¹ and high-power fiber combiner, a laser output with average power of 3 kW, repetition rate of 60 kHz, pulse width of 150 ns, single pulse energy of 50 mJ is achieved by combining three laser modules in an all fiber-fusion structure, where each output power is more than 1000 W; and the beam combining efficiency is 98.3%. By controlling the pulse delay of the three modules, the three pulses are managed to be overlapped completely, and the overlapping rate is more than 97%. This is the highest value among all known fiber pulsed laser output using self-developed fiber and pulse beam combiner.

Citation Download Citation

Yiming Cai, Qixin Zhu, Shijie Wang, Jianhong Shi, Lei Liao, Dapeng Yan, Jinyan Li, and Cheng Li "Generating 3000W nanosecond laser of all-fiber structure by using high power pulsed fiber combiner", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 121695A (27 March 2022); https://doi.org/10.1117/12.2624331

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