Abstract

Phase locking for two ytterbium-doped large-core fiber lasers has been demonstrated by using a self-imaging confocal resonator with a spatial filter. Steady high-contrast interference stripes are observed. The visibilities of coherent and incoherent stripes are 59% and 6%, respectively. The measured width of the central strip is in good agreement with the calculated result. For in-phase mode, the output power of the phase-locked fiber laser array is up to 113 W and corresponding slope efficiency is 38.5%.

© 2007 Chinese Optics Letters

Single-mode plane-polarized ytterbium-doped large-core fiber laser with 633-W continuous-wave output power

Y. Jeong, J. Nilsson, J. K. Sahu, D. B.S. Soh, P. Dupriez, C. A. Codemard, S. Baek, D. N. Payne, R. Horley, J. A. Alvarez-Chavez, and P. W. Turner
Opt. Lett. 30(9) 955-957 (2005)

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Large mode area double-clad ytterbium-doped spun tapered fiber

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J. Opt. Soc. Am. B 38(12) F161-F169 (2021)

Highly efficient 750 W tapered double-clad ytterbium fiber laser

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Opt. Express 18(12) 12499-12512 (2010)