Q-switched mode-locking femtosecond all-fiber laser based on Er3+/Yb3+ codoped phosphate fiber |
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| Authors: | Wei X. M. Xu S. H. Qian Q. Dong G. P. Yang Z. M. Qiu J. R. |
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| Affiliation: | 1.Institute of Optical Communication Materials, South China University of Technology, Guangzhou, 510641, China
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| Abstract: | A Q-switched mode-locking femtosecond all-fiber laser based on a 2 cm long homemade Er3+/Yb3+ codoped phosphate glass fiber has been reported. By using the nonlinear polarization evolution technique, a nearly 100% modulation depth of mode-locking pulse train is achieved. At a pump power of 410 mW, the energy of each Q-switched envelope, whose width is about 220 μs, is 10 μJ, while the duration of mode-locking pulse within the Q-switched envelope is 318-fs. |
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