期刊
FIBER LASERS XIX: TECHNOLOGY AND SYSTEMS
卷 11981, 期 -, 页码 -出版社
SPIE-INT SOC OPTICAL ENGINEERING
DOI: 10.1117/12.2609569
关键词
Fiber lasers; High power lasers; Optical fibers; Multicore fibers
类别
In-house fabricated Ytterbium-doped rod-type multicore fibers were used to generate and amplify ns-class pulses up to 37 mJ. Amplification was compared using tapered and untapered MCFs, with the tapered fiber improving beam quality while maintaining a large waveguide mode area for nonlinear effects suppression and increased amplification per unit length. These all-glass MCFs can facilitate energy and power scaling in compact high power coherently combined amplifier systems.
In-house fabricated Ytterbium-doped rod-type multicore fibers (MCFs) with 4x4 cores were used to generate and amplify ns-class pulses to energies up to 37 mJ. Amplification was compared using tapered and untapered MCFs with large multimode output cores using a Q-switched MCF oscillator as seed source. The tapered fiber improves beam quality (average M2 = 1.56) while maintaining a large waveguide mode area for suppression of nonlinear effects and increased amplification per unit length. These all-glass MCFs can facilitate energy and power scaling in compact high power coherently combined amplifier systems.
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