Highly efficient wavelength-tunable anti-Stokes signal conversion by phase-matched four-wave mixing in the second-order mode of photonic crystal fiber |
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Authors: | J-H Yuan X-Z Sang C-X Yu X-J Xin G-Y Zhou S-G Li L-T Hou |
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Institution: | 1.State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications),Beijing,China;2.Institute of Infrared Optical Fibers and Sensors, Physics Department,Yanshan University,Qinhuangdao,China |
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Abstract: | Using the photonic crystal fiber (PCF) with zero dispersion wavelengths of the fundamental mode and the second-order mode
at 985 nm and 885 nm designed and fabricated in our lab, the anti-Stokes signals from 586.5 to 558 nm are efficiently generated
in the second-order mode. When the pump working wavelength λ
0 increases from 830 to 880 nm and the input average power P
in reduces from 43 to 25 mW, the output power of anti-Stokes signal increases 1.76 times, the power ratio of anti-Stokes signal
at 558 nm to the residual pump component at 880 nm is estimated as 5:1, and the maximal conversion efficiency P
as/P
p0 can be up to 36%. The possible reasons for the difference from theoretical results are discussed. The combined effects of
the interval between the pump working wavelength and zero dispersion wavelength and the input power on the signal conversion
process are analyzed. |
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Keywords: | |
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