Intermodal four-wave mixing in a higher-order-mode fiber

Ji Cheng, Martin Erland Vestergaard Pedersen, Kriti Charan, Ke Wang, Chris Xu, Lars Erik Grüner-Nielsen, Dan Jakobsen

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We demonstrate a high-efficiency intermodal four-wave-mixing process in an all-fiber system, comprising a picosecond fiber laser and a high-order-mode (HOM) fiber. Two pump photons in the LP01 mode of the fiber can generate an anti-Stokes photon in the LP01 mode and a Stokes photon in the LP02 mode. The wavelength dependent mode profiles of the HOM fiber produce significant spatial overlap between the modes involved. The anti-Stokes wave at 941 nm is generated with 20% conversion efficiency with input pulse energy of 20 nJ. The guidance of the anti-Stokes and Stokes waves in the HOM fiber enhances system stability.
Original languageEnglish
JournalApplied Physics Letters
Pages (from-to)161106
Publication statusPublished - 2012
Externally publishedYes


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