title: Generation of Cerenkov radiation at 850 nm in higher-order-mode fiber.
abstract: We demonstrate generation of Cerenkov radiation at 850 nm in a higher-order-mode (HOM) fiber. The LP02 mode in this solid, silica-based fiber has anomalous dispersion from 690 nm to 810 nm. Cerenkov radiation with 3 nJ pulse energy is generated in this module, exhibiting 60% energy conversion efficiency from the input. The HOM fiber provides a valuable fiber platform for nonlinear wavelength conversion with pulse energies in-between index-guided silica-core photonic crystal fibers and air-core photonic bandgap fibers.
authors.affiliation: School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA. jc875@cornell.edu
authors.forename: Ji
authors.initials: J
authors.lastname: Cheng
authors.forename: Jennifer H
authors.initials: JH
authors.lastname: Lee
authors.forename: Ke
authors.initials: K
authors.lastname: Wang
authors.forename: Chris
authors.initials: C
authors.lastname: Xu
authors.forename: Kim G
authors.initials: KG
authors.lastname: Jespersen
authors.forename: Martin
authors.initials: M
authors.lastname: Garmund
authors.forename: Lars
authors.initials: L
authors.lastname: Grüner-Nielsen
authors.forename: Dan
authors.initials: D
authors.lastname: Jakobsen
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D055100:Optical Fibers; D012542:Scattering, Radiation