Double-pumped multiwavelength fiber optical parametric oscillator based on a Sagnac loop filter.
We propose a double-pumped ring cavity multiwavelength fiber optical parametric oscillator (MW-FOPO) using a highly nonlinear dispersion-shifted fiber (HNL-DSF) as the gain medium and a polarization maintained fiber based Sagnac loop filter as the comblike filter. 22-wavelength lasing of the double-pumped MW-FOPO with a ripple less than ±2.5 dB and a wavelength spacing of about 0.8 nm in a wavelength range from 1541 nm to 1558 nm is experimentally demonstrated. We discussed the power stability of the multiwavelength lasing of the double-pumped MW-FOPO. A comparison of the output spectra between the double-pumped MW-FOPO and single-pumped MW-FOPO is also presented.
State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310058, China.
Bing
B
Sun
Kai
K
Hu
Yizhen
Y
Wei
Daru
D
Chen
Shiming
S
Gao
Tianshu
T
Wang
Sailing
S
He