Phase-squeezing properties of non-degenerate PSAs using PPLN waveguides.

  title={Phase-squeezing properties of non-degenerate PSAs using PPLN waveguides.},
  author={Benjamin J. Puttnam and Daniel Mazroa and Satoshi Shinada and Naoya Wada},
  journal={Optics express},
  volume={19 26},
We investigate the phase squeezing characteristics of non-degenerate phase-sensitive-amplifiers (PSAs) based on periodically-poled-lithium-niobate (PPLN) waveguides. We implement two PSA configurations with phase insensitive idler generation performed in both highly-non-linear-fiber (HNLF) and PPLN waveguides. In both cases we demonstrate regeneration of a noisy BPSK signal, despite net signal attenuation in the phase sensitive PPLN, and show that the level of phase squeezing varies with the… CONTINUE READING
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