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25 October 2011 Tailoring the dispersion of photonic crystal fibers for supercontinuum and photon pairs generation
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The interplay between chromatic dispersion and nonlinear effects is patent. Once a photonic crystal fiber (PCF) preform has been prepared, changing the parameters that control the fabrication process it is possible to adjust the dispersion properties of the fiber. In addition, it is very useful to develop postprocessing techniques that enable a fine adjustment of the dispersion along a section of PCF. The tapering of PCF, using a fusion and pulling technique, has been established as a rather useful technique to engineer the dispersion properties along tens of centimeters. Some of our recent experiments demonstrate that the use of erbium doped PCF enables an optical control of the dispersion through optical pumping of the rare earth ions. Our interest is focused on the exploitation of nonlinear PCF for the development of fiber light sources. Thus, we will present several experiments on supercontinuum and photon pairs generation, through degenerated four-wave mixing (FWM), in order to illustrate the control that one can achieve on the optical spectra of these light sources as a function of different dispersion control approaches.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Díez, M. V. Andrés, E. Silvestre, J. Cascante-Vindas, L. Velázquez-Ibarra, J. Abreu-Afonso, M. A. Martínez, and J. L. Lucio "Tailoring the dispersion of photonic crystal fibers for supercontinuum and photon pairs generation", Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 801134 (25 October 2011);

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