Polarization-dependent intermodal four-wave mixing in a birefringent multimode photonic crystal fiber

Yuan, Jinhui, Kang, Zhe, Li, Feng, Zhou, Guiyao, Sang, Xinzhu, Wu, Qiang, Yan, Binbin, Zhou, Xian, Zhong, Kangping, Wang, Liang, Wang, Kuiru, Yu, Chongxiu, Lu, Chao, Tam, Hwa Yao and Wai, Ping-kong Alexander (2017) Polarization-dependent intermodal four-wave mixing in a birefringent multimode photonic crystal fiber. Optics Letters. ISSN 0146-9592 (In Press)

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Official URL: http://dx.doi.org/10.1364/OL.99.099999


In this letter, polarization-dependent intermodal fourwave mixing (FWM) is demonstrated experimentally in a birefringent multimode photonic crystal fiber (BM-PCF) designed and fabricated in-house. Femtosecond pump pulses at wavelength ~800 nm polarized along one of the principle axes of the BM-PCF are coupled into normal dispersion region away from the zero-dispersion wavelengths of the fundamental guided mode of the BMPCF. Anti-Stokes and Stokes waves are generated in the second-order guided mode at visible and near-infrared wavelength, respectively. For pump pulses at average input power 500 mW polarized along the slow axis, the conversion efficiencies ηas and ηs of the anti-Stokes and Stokes waves generated at wavelengths 579.7 and 1290.4 nm are 19 and 14%, respectively. For pump pulses polarized along the fast axis, the corresponding ηas and ηs at 530.4 and 1627 nm are 23 and 18%, respectively. It is also observed that fiber bending and intermodal walk-off have small effect on the polarization-dependent intermodal FWM-based frequency conversion process.

Item Type: Article
Subjects: F300 Physics
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 29 Mar 2017 11:18
Last Modified: 10 Jul 2017 09:26
URI: http://nrl.northumbria.ac.uk/id/eprint/30273

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