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http://dx.doi.org/10.3807/KJOP.2016.27.3.095

Quasi-continuous-wave Yb-doped Fiber Lasers with 1.5 kW Peak Power  

Jeon, Minjee (Manufacturing System R&D Department, Korea Institute of Industrial Technology)
Jung, Yeji (Manufacturing System R&D Department, Korea Institute of Industrial Technology)
Kim, Jiwon (Department of Applied physics, University of hanyang ERICA)
Jeong, Hoon (Manufacturing System R&D Department, Korea Institute of Industrial Technology)
Publication Information
Korean Journal of Optics and Photonics / v.27, no.3, 2016 , pp. 95-100 More about this Journal
Abstract
High-power quasi-continuous-wave (qcw) operation in Yb-doped double-clad fiber lasers with near-diffraction-limited quality of the output beam is reported. Based on numerical simulation, we built a simple, all-fiberized Yb fiber laser, and a fiber-based master-oscillator power amplifier (MOPA). Both laser systems have successfully produced qcw output with average power greater than 150 W at 1080 nm and 10 ms pulse duration at 10 Hz repetition rate, corresponding to a peak power greater than 1.5 kW for 205 W of pump power at 976 nm. Laser performance, including beam quality and slope efficiency, was characterized in both configurations. Prospects for power scaling and applications are discussed.
Keywords
Fiber laser; Quasi-cw; Near infrared laser; Yb laser;
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Times Cited By KSCI : 1  (Citation Analysis)
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