Direct experimental observation of periodic intensity modulation along a straight hollow-core optical waveguide
JOSA B, Vol. 24, Issue 5, pp. 1025-1029 (2007)
http://dx.doi.org/10.1364/JOSAB.24.001025
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Abstract
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
History
Original Manuscript: October 20, 2006
Revised Manuscript: January 10, 2007
Manuscript Accepted: January 12, 2007
Published: April 17, 2007
Citation
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)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-5-1025
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