Abstract
Squeezing or quantum noise reduction of optical states in glass fibers has been chronically afflicted by the large excess noise from Guided Acoustic Wave Brillouin Scattering (GAWBS) [1, 2, 3]. Photonic Crystal Fibers (PCFs) represent a promising new approach to reduce this noise. This lies in the ability to tailor the cross-sectional geometries of these novel waveguides [4] and thus their vibrational properties [5]. These devices are then promising candidates for a new tool in the fiber based production of purer squeezed quantum states. Instead of measuring quadrature variables, where an external local oscillator is needed, the alternative is to examine the polarization variables of light. Due to their multimode nature they can be interpreted as a weak signal with a copropagating intense local oscillator [6]. We report on the generation of polarization squeezed states employing intense, ultrashort light pulses by a single pass method in photonic crystal fibers. We investigated the squeezing behavior near the zero-dispersion wavelength and in the anomalous dispersion regime by using two distinct fibers.
© 2007 IEEE
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