High Power Laser Science and Engineering, 2019, 7 (4): 04000e65, Published Online: Dec. 16, 2019
Generation of 100 nJ pulse, 1 W average power at 
from an intermode beating mode-locked all-fiber laser
average output power intermode beating mode-locking Tm3+ -doped double clad fiber laser pulse energy
Abstract
We report on the investigation of intermode beating mode-locked (IBML) pulse generation in a simple all-fiber Tm$^{3+}$ -doped double clad fiber laser (TDFL). This IBML TDFL is implemented by matching longitudinal-mode frequency between 793 nm laser and TDFL without extra mode locker. The central wavelength of ${\sim}1983~\text{nm}$ , the fundamental pulse frequency of ${\sim}9.6~\text{MHz}$ and the signal-to-noise ratio (SNR) of ${>}50~\text{dB}$ are achieved in this IBML TDFL. With laser cavity optimization, the IBML TDFL can finally generate an average output power of 1.03 W with corresponding pulse energy of ${\sim}107~\text{nJ}$ . These results can provide an easily accessible way to develop compact large-energy, high-power TDFLs.
Jiaji Zhang, Duanduan Wu, Ruwei Zhao, Rongping Wang, Shixun Dai. Generation of 100 nJ pulse, 1 W average power at from an intermode beating mode-locked all-fiber laser[J]. High Power Laser Science and Engineering, 2019, 7(4): 04000e65.
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