Enhanced intermodal four-wave mixing for visible and near-infrared wavelength generation in a photonic crystal fiber

Jinhui Yuan, Xinzhu Sang, Qiang Wu, Guiyao Zhou, Feng Li, Xian Zhou, Chongxiu Yu, Kuiru Wang, Binbin Yan, Ying Han, Hwa Yaw Tam, Ping Kong Alexander Wai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

19 Citations (Scopus)

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 ηasand ηsof anti-Stokes and Stokes waves can be up to 21% and 16%, respectively. The Stokes frequency shift Ω is 5580 cm-1. The fiber bending and intermodal walk-off effect of pulses do not have significant influence on the nonlinear optical process.
Original languageEnglish
Pages (from-to)1338-1341
Number of pages4
JournalOptics Letters
Volume40
Issue number7
DOIs
Publication statusPublished - 1 Jan 2015

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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