Chinese Optics Letters, 2016, 14 (9): 091405, Published Online: Aug. 3, 2018
Tunable femtosecond pulse source from 1.6 to 2.3 μm with 100 kW peak power in an all-fiber system
Abstract
We report a simple and compact all-fiber laser system that is capable of generating widely tunable femtosecond pulses from 1.6 to 2.32 μm. The pulses are produced by utilizing the soliton self-frequency shift in a highly nonlinear fiber pumped by an Er-doped mode-locked fiber laser. Two stages of single-clad Tm:fiber amplifiers are used to amplify the pulses to a higher pulse energy of 10.9 nJ with pulse width of 94 fs, and corresponding to peak power of 105 kW at around 1.93 μm. Running a few hours, the all-fiber laser system exhibits exceptional stability with a signal-to-noise ratio as high as 70 dB.
Peng Wang, Hongxing Shi, Fangzhou Tan, Pu Wang. Tunable femtosecond pulse source from 1.6 to 2.3 μm with 100 kW peak power in an all-fiber system[J]. Chinese Optics Letters, 2016, 14(9): 091405.