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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 24 — Nov. 19, 2012
  • pp: 26110–26116

Ultrafast wavelength conversion via cross-phase modulation in hydrogenated amorphous silicon optical fibers

P. Mehta, N. Healy, T. D. Day, J. V. Badding, and A. C. Peacock  »View Author Affiliations


Optics Express, Vol. 20, Issue 24, pp. 26110-26116 (2012)
http://dx.doi.org/10.1364/OE.20.026110


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Abstract

We present a characterization of the spectral modulation and wavelength shifting induced via cross-phase modulation (XPM) in a hydrogenated amorphous silicon (a-Si:H) core optical fiber. Pump-probe experiments using picosecond and femtosecond signal pulses are shown to be in good agreement with numerical simulations of the coupled nonlinear propagation equations. The large 10nm red-shifts obtained with the femtosecond probe pulses are attributed to the high Kerr nonlinearity of the a-Si:H material. Extinction ratios as high as 12dB are measured for the conversion process at telecommunications wavelengths, indicating the potential for high-speed nonlinear optical control in a-Si:H fibers and waveguides.

© 2012 OSA

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2290) Fiber optics and optical communications : Fiber materials
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: September 13, 2012
Revised Manuscript: October 25, 2012
Manuscript Accepted: October 25, 2012
Published: November 5, 2012

Citation
P. Mehta, N. Healy, T. D. Day, J. V. Badding, and A. C. Peacock, "Ultrafast wavelength conversion via cross-phase modulation in hydrogenated amorphous silicon optical fibers," Opt. Express 20, 26110-26116 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-24-26110


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