0000000000072674
AUTHOR
Ma. A. Martinez
Control of the chromatic dispersion of photonic crystal fibers for supercontinuum and photon pairs generation
The interplay between chromatic dispersion and nonlinear effects is crucial for an efficient exploitation of non linear propagation in photonic crystal fibers (PCF). Once a 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 particularly 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…
Wavelength shift of four-wave mixing bands in photonic crystal fibers pumped in the normal dispersion regime
The generation of correlated photon pairs plays a central role in several quantum mechanics applications, such as quantum information, and cryptography [1]. Correlated photon pairs can be generated inside an optical fiber through the parametric process of degenerated four-wave mixing (FWM) [2]. In this paper we report the results of two different experiments where wavelength shift of FWM bands in normal dispersive PCFs is investigated.