Direct experimental observation of periodic intensity modulation along a straight hollow-core optical waveguide
Journal Article
·
· Journal of the Optical Society of America. Part B, Optical Physics
- Department of Physics, University of Texas at Austin, Austin, Texas 78712 (United States)
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.
- OSTI ID:
- 20929675
- Journal Information:
- Journal of the Optical Society of America. Part B, Optical Physics, Vol. 24, Issue 5; Other Information: DOI: 10.1364/JOSAB.24.001025; (c) 2007 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA); ISSN 0740-3224
- Country of Publication:
- United States
- Language:
- English
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