Abstract

In this work, we provide proof-of-concept experimental realization of pulse multiplexing and beam combining of four pulsed Yb-doped fiber lasers by noncollinear frequency up-conversion in an LBO crystal. An overall conversion efficiency of 51% and up to 29 W average power in a combined 532 nm beam were achieved. These results correspond to an improvement by a factor of 2 compared to the average power extracted from a single fiber amplifier.

© 2017 Optical Society of America

Coherent beam combining of pulsed fiber amplifiers by noncolinear sum-frequency generation

Julijanas Želudevičius, Rokas Rutkauskas, and Kęstutis Regelskis
Opt. Lett. 44(7) 1813-1816 (2019)

600  W green and 300  W UV light generated from an eight-beam, sub-nanosecond fiber laser system

Koji Tsubakimoto, Hidetsugu Yoshida, and Noriaki Miyanaga
Opt. Lett. 42(17) 3255-3258 (2017)

Sum frequency generation of UV laser radiation at 266 nm in LBO crystal

D. G. Nikitin, O. A. Byalkovskiy, O. I. Vershinin, P. V. Puyu, and V. A. Tyrtyshnyy
Opt. Lett. 41(7) 1660-1663 (2016)

High-power and high-conversion efficiency deep ultraviolet (DUV) laser at 258  nm generation in the CsLiB₆O₁₀ (CLBO) crystal with a beam quality of M²<1.5

Hongwen Xuan, Chen Qu, Shinji Ito, and Yohei Kobayashi
Opt. Lett. 42(16) 3133-3136 (2017)

High-power DUV picosecond pulse laser with a gain-switched-LD-seeded MOPA and large CLBO crystal

Kenta Kohno, Yosuke Orii, Hisashi Sawada, Daisuke Okuyama, Kimihiko Shibuya, Seiji Shimizu, Masashi Yoshimura, Yusuke Mori, Junichi Nishimae, and George Okada
Opt. Lett. 45(8) 2351-2354 (2020)