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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 5 — May. 1, 2007
  • pp: 1025–1029

Direct experimental observation of periodic intensity modulation along a straight hollow-core optical waveguide

T. Pfeifer and M. C. Downer  »View Author Affiliations

JOSA B, Vol. 24, Issue 5, pp. 1025-1029 (2007)

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We report the direct observation of periodic intensity modulation of a laser pulse propagating in a hollow-core waveguide. A series of equally spaced plasma sparks along the gas-filled capillary is produced. This effect can be explained by the beating of different fiber modes, which are excited by controlling the size of the focal spot at the capillary entrance. As compared with an artificial modulated waveguide structure, our presented approach represents an easier and more flexible quasi-phase-matching scheme for nonlinear-optical frequency conversion.

© 2007 Optical Society of America

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(270.1670) Quantum optics : Coherent optical effects
(270.4180) Quantum optics : Multiphoton processes
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 20, 2006
Revised Manuscript: January 10, 2007
Manuscript Accepted: January 12, 2007
Published: April 17, 2007

T. Pfeifer and M. C. Downer, "Direct experimental observation of periodic intensity modulation along a straight hollow-core optical waveguide," J. Opt. Soc. Am. B 24, 1025-1029 (2007)

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