Chinese Optics Letters, Volume. 16, Issue 12, 121404(2018)
All-polarization-maintaining figure-eight Er-fiber ultrafast laser with a bidirectional output coupler in the loss-imbalanced nonlinear optical loop mirror
Fig. 1. (a) Normalized transmissivity and (b) the slope of normalized transmissivity as a function of
Fig. 2. Schematic of the experimental setup: LD, laser diode; WDM, wavelength division multiplexer; OC, optical coupler; EDF, Er-doped fiber; BPF, bandpass filter; PF, passive fiber; OI, optical isolator; OP, output.
Fig. 3. Output power as a function of pump power.
Fig. 4. Mode-locked outputs of the figure-eight oscillator at the pump power of 760 mW. Experimentally observed (a) autocorrelation traces, (b) spectra in the linear scale (inset: spectra in log scale), (c) pulse trains, and (d) radio-frequency spectra (inset: radio-frequency spectra in a wider range) of the CW and CCW output pulses.
Get Citation
Copy Citation Text
Junkai Shi, Yao Li, Shuyuan Gao, Yingling Pan, Guoming Wang, Rongyi Ji, Weihu Zhou. All-polarization-maintaining figure-eight Er-fiber ultrafast laser with a bidirectional output coupler in the loss-imbalanced nonlinear optical loop mirror[J]. Chinese Optics Letters, 2018, 16(12): 121404
Category: Lasers and Laser Optics
Received: Sep. 3, 2018
Accepted: Nov. 1, 2018
Published Online: Dec. 7, 2018
The Author Email: Weihu Zhou (zhouweihu@aoe.ac.cn)