Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 27, Issue 1, Pages 93-96Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2014.2362514
Keywords
Fiber laser; mode-locking; ultrafast; dispersion; fiber nonlinear optics
Funding
- National 973 Program of China [2011CB301700]
- National Natural Science Foundation of China [61007052, 61127016]
- Shanghai Pujiang Program [12PJ1405600]
- Shanghai Excellent Academic Leader Program [12XD1406400]
- State Key Laboratory Project, Shanghai Jiao Tong University, Shanghai, China [GKZD030033]
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This letter demonstrates an experimental realization of effective dispersion and nonlinearity optimization in an Er-doped fiber laser at a high repetition rate of larger than 200 MHz. The maximum power of the direct output pulse at an available pump power of 700 mW is 84.8 mW with a pulse duration of 56.5 fs, which exhibits a high transfer efficiency of 12.1%, single-pulse energy of 0.42 nJ, and pulse peak power of 7 kW. Evolution of the spectral characteristics of the direct output pulse is further studied by adjusting the waveplates and tuning the pump power. 44.6-fs ultrafast pulses with a flat full spectral width at half maximum of 148 nm are directly generated.
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