| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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High-Pulse-Energy All-Normal-Dispersion Yb-Doped Fiber Laser Based on Nonlinear Polarization Evolution |
| WANG Jun-Li1**, WANG Xue-Ling1, HE Bo-Rong1, WANG Yong-Gang3, ZHU Jiang-Feng1, WEI Zhi-Yi2 |
1School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071
2Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190
3State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119
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| Cite this article: |
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WANG Jun-Li, WANG Xue-Ling, HE Bo-Rong et al 2015 Chin. Phys. Lett. 32 114202 |
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Abstract We report an all-normal-dispersion ytterbium fiber laser mode locked by nonlinear polarization evolution. With a 347-m-long all-fiber ring cavity, a pulse energy of 263 nJ at a repetition rate of 613 kHz is achieved, which is the highest per-pulse energy directly obtained from an all-fiber mode-locked laser doped by ytterbium ions. The compact and operation-robust laser yields a well-shaped spectrum centered at 1032 nm with a bandwidth (FWHM) of 4 nm, and the slope efficiency is as high as 27.5%. The proposed low-repetition-rate high-pulse-energy mode-locked fiber laser will be a promising seed for all-fiber chirped pulsed amplification systems.
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Received: 09 June 2015
Published: 01 December 2015
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| PACS: |
42.55.Wd
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(Fiber lasers)
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42.60.Fc
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(Modulation, tuning, and mode locking)
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42.60.Rn
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(Relaxation oscillations and long pulse operation)
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