Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/36203
Title: Enhanced intermodal four-wave mixing for visible and near-infrared wavelength generation in a photonic crystal fiber
Authors: Yuan, JH
Sang, XZ
Wu, Q
Zhou, GY
Li, F
Zhou, X
Yu, CX
Wang, KR
Yan, BB
Han, Y
Tam, HY 
Wai, PKA 
Issue Date: 2015
Publisher: Optical Society of America
Source: Optics letters, 2015, v. 40, no. 7, p. 1338-1341 How to cite?
Journal: Optics letters 
Abstract: We demonstrate experimentally an enhanced intermodal four-wave mixing (FWM) process through coupling positively chirped femtosecond pulses into the deeply normal dispersion region of the fundamental mode of an in-house fabricated photonic crystal fiber (PCF). In the intermodal phase-matching scheme, the energy of the pump waves at 800 nm in the fundamental mode is efficiently converted into the anti-Stokes waves around 553 nm and the Stokes waves within the wavelength range of 1445-1586 nm in the second-order mode. The maximum conversion efficiency of eta(as) and eta(s) of anti-Stokes and Stokes waves can be up to 21% and 16%, respectively. The Stokes frequency shift Omega is 5580 cm(-1). The fiber bending and intermodal walk-off effect of pulses do not have significant influence on the nonlinear optical process.
URI: http://hdl.handle.net/10397/36203
ISSN: 0146-9592
EISSN: 1539-4794
DOI: 10.1364/OL.40.001338
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