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  Supercontinuum generation in chalcogenide-silica step-index fibers

Granzow, N., Stark, S. P., Schmidt, M. A., Tverjanovich, A. S., Wondraczek, L., & Russell, P. S. J. (2011). Supercontinuum generation in chalcogenide-silica step-index fibers. OPTICS EXPRESS, 19(21), 21003-21010. doi:10.1364/OE.19.021003.

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 Creators:
Granzow, N.1, Author           
Stark, S. P.1, Author           
Schmidt, M. A.1, Author           
Tverjanovich, A. S.2, Author
Wondraczek, L.2, Author
Russell, P. St. J.1, Author           
Affiliations:
1Russell Division, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364721              
2external, ou_persistent22              

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Free keywords: PHOTONIC-CRYSTAL FIBERS; OPTICAL-FIBERS; MU-M; GLASSES; SYSTEM; WAVELENGTH; DISPERSION; PULSES; NMOptics;
 Abstract: We explore the use of a highly nonlinear chalcogenide-silica waveguide for supercontinuum generation in the near infrared. The structure was fabricated by a pressure-assisted melt-filling of a silica capillary fiber (1.6 mu m bore diameter) with Ga4Ge21Sb10S65 glass. It was designed to have zero group velocity dispersion (for HE11 core mode) at 1550 nm. Pumping a 1 cm length with 60 fs pulses from an erbium-doped fiber laser results in the generation of octave-spanning supercontinuum light for pulse energies of only 60 pJ. Good agreement is obtained between the experimental results and theoretical predictions based on numerical solutions of the generalized nonlinear Schrodinger equation. The pressure-assisted melt-filling approach makes it possible to realize highly nonlinear devices with unusual combinations of materials. For example, we show numerically that a 1 cm long As2S3:silica step-index fiber with a core diameter of 1 mu m, pumped by 60 fs pulses at 1550 nm, would generate a broadband supercontinuum out to 4 mu m. (C) 2011 Optical Society of America

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Language(s): eng - English
 Dates: 2011
 Publication Status: Issued
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000296065700121
DOI: 10.1364/OE.19.021003
 Degree: -

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Title: OPTICS EXPRESS
Source Genre: Journal
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Publ. Info: 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA : OPTICAL SOC AMER
Pages: - Volume / Issue: 19 (21) Sequence Number: - Start / End Page: 21003 - 21010 Identifier: ISSN: 1094-4087