期刊
OPTICS LETTERS
卷 38, 期 3, 页码 296-298出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.38.000296
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资金
- National Basic Research Program of China [2011CB808101, 2010CB327604]
- National Natural Science Foundation of China (NSFC) [61227010, 61008015, 61078028]
- State Key Laboratory of High Field Laser Physics (Shanghai Institute of Optics and Fine Mechanics)
We report on a nonlinear preshaper that optimizes initial pulses for self-similar evolution in a next fiber amplifier. It consists of a pair of gratings and a segment of single-mode fiber (SMF). The grating pair provides negative chirp to make the pulses preshaped temporally and spectrally in the SMF. With this optimization, the self-similar amplification can be realized in a 2.2 m Yb-doped fiber in a large range of pump power. After amplification, the pulse can be dechirped to transform-limited pulses with similar to 60 fs pulse duration. (C) 2013 Optical Society of America
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