title: Mid-infrared supercontinuum generation in a suspended-core As2S3 chalcogenide microstructured optical fiber.
abstract: We demonstrate the supercontinuum (SC) generation in a suspended-core As(2)S(3) chalcogenide microstructured optical fiber (MOF). The variation of SC is investigated by changing the fiber length, pump peak power and pump wavelength. In the case of long fibers (20 and 40 cm), the SC ranges are discontinuous and stop at the wavelengths shorter than 3500 nm, due to the absorption of fiber. In the case of short fibers (1.3 and 2.4 cm), the SC ranges are continuous and can extend to the wavelengths longer than 4 μm. The SC broadening is observed when the pump peak power increases from 0.24 to 1.32 kW at 2500 nm. The SC range increases with the pump wavelength changing from 2200 to 2600 nm, corresponding to the dispersion of As(2)S(3) MOF from the normal to anomalous region. The SC generation is simulated by the generalized nonlinear Schrödinger equation. The simulation includes the SC difference between 1.3 and 2.4 cm long fiber by 2500 nm pumping, the variation of SC with pump peak power in 2.4 cm long fiber, and the variation of SC with pump wavelength in 1.3 cm long fiber. The simulation agrees well with the experiment.
authors.affiliation: Research Center for Advanced Photon Technology, Toyota Technological Institute, 2-12-1, Hisakata, Nagoya 468-8511, Japan. weiqinggao@yahoo.com
authors.forename: Weiqing
authors.initials: W
authors.lastname: Gao
authors.forename: Mohammed
authors.initials: M
authors.lastname: El Amraoui
authors.forename: Meisong
authors.initials: M
authors.lastname: Liao
authors.forename: Hiroyasu
authors.initials: H
authors.lastname: Kawashima
authors.forename: Zhongchao
authors.initials: Z
authors.lastname: Duan
authors.forename: Dinghuan
authors.initials: D
authors.lastname: Deng
authors.forename: Tonglei
authors.initials: T
authors.lastname: Cheng
authors.forename: Takenobu
authors.initials: T
authors.lastname: Suzuki
authors.forename: Younès
authors.initials: Y
authors.lastname: Messaddeq
authors.forename: Yasutake
authors.initials: Y
authors.lastname: Ohishi
mesh_terms: D001152:Arsenicals / Q000737:chemistry*; D018011:Chalcogens / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007259:Infrared Rays; D007834:Lasers; D008029:Lighting / Q000295:instrumentation*; D008422:Materials Testing; D008904:Miniaturization; D013440:Sulfides / Q000737:chemistry*
chemical_list: D001152:Arsenicals; D018011:Chalcogens; D013440:Sulfides; C045816:arsenic trisulfide