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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 20 — Oct. 2, 2006
  • pp: 9408–9414

Supercontinuum generation in submicrometer diameter silica fibers

Rafael R. Gattass, Geoffry T. Svacha, Limin Tong, and Eric Mazur  »View Author Affiliations


Optics Express, Vol. 14, Issue 20, pp. 9408-9414 (2006)
http://dx.doi.org/10.1364/OE.14.009408


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Abstract

Silica nanowires provide strong mode confinement in a cylindrical silica-core/air-cladding geometry and serve a model system for studying nonlinear propagation of short optical pulses inside fibers. We report on the fiber diameter dependence of the supercontinuum generated by femtosecond laser pulses in silica fiber tapers with average diameters in the range of 200 nm to 1200 nm. We observe a strong diameter-dependence of the spectral broadening, which can be attributed to the fiber’s diameter-dependent dispersion and nonlinearity. The short interaction length (less than 20 mm) and the low energy threshold for supercontinuum generation (about 1 nJ) make tapered fibers with diameters between 400 nm and 800 nm an ideal source of coherent white-light source in nanophotonics.

© 2006 Optical Society of America

OCIS Codes
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(320.7140) Ultrafast optics : Ultrafast processes in fibers

ToC Category:
Nonlinear Optics

History
Original Manuscript: July 21, 2006
Revised Manuscript: September 7, 2006
Manuscript Accepted: September 12, 2006
Published: October 2, 2006

Citation
Rafael R. Gattass, Geoffry T. Svacha, Limin Tong, and Eric Mazur, "Supercontinuum generation in submicrometer diameter silica fibers," Opt. Express 14, 9408-9414 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-20-9408


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