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Efficient and broadband Stokes wave generation by degenerate four-wave mixing at the mid-infrared wavelength in a silica photonic crystal fiber

Efficient and broadband Stokes wave generation by degenerate four-wave mixing at the mid-infrared wavelength in a silica photonic crystal fiber

Authors :
Yuan, Jinhui
Sang, Xinzhu
Wu, Qiang
Zhou, Guiyao
Yu, Chongxiu
Wang, Kuiru
Yan, Binbin
Han, Ying
Farrell, Gerald
Hou, Lantian
Source :
Optics Letters; December 2013, Vol. 38 Issue: 24 p5288-5291, 4p
Publication Year :
2013

Abstract

Based on degenerate four-wave mixing (FWM), the broadband Stokes waves are efficiently generated at the mid-infrared wavelength above 2 μm, for the first time to our knowledge, by coupling the femtosecond pulses into the fundamental mode of a silica photonic crystal fiber designed and fabricated in our laboratory. Influences of the power and wavelength of pump pulses on the phase-matched frequency conversion process are discussed. When pump pulses with central wavelength of 815 nm and average power of 300 mW are used, the output power ratio of the Stokes wave generated at 2226 nm and the residual pump wave P_s/P_res is estimated to be 10.8∶1, and the corresponding conversion efficiency η_s and bandwidth B_s of the Stokes wave can be up to 26% and 33 nm, respectively. The efficient and broadband Stokes waves can be used as the ultrashort pulse sources for mid-infrared photonics and spectroscopy.

Details

Language :
English
ISSN :
01469592 and 15394794
Volume :
38
Issue :
24
Database :
Supplemental Index
Journal :
Optics Letters
Publication Type :
Periodical
Accession number :
ejs37855022