Quantum Noise Reduction Using a Nonlinear Sagnac Loop with Positive Dispersion

  • L. Boivin
  • C. R. Doerr
  • K. Bergman
  • H. A. Haus

Abstract

Recent experiments at MIT using light from a mode-locked Nd:YLF laser at 1.3µm in a fiber Sagnac loop have achieved noise levels 5.1dB below shot noise. In these experiments, squeezing is limited by the gaussian shape of the pump pulses. We show that by operating the interferometer away from 1.3µm that limitation can be overcome. For these wavelengths the group velocity dispersion of silica fibers creates negative correlations between the noise on different parts of the pump.

Keywords

Soliton Sapphire Coupler Parkin 

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Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • L. Boivin
    • 1
  • C. R. Doerr
    • 1
  • K. Bergman
    • 1
  • H. A. Haus
    • 1
  1. 1.Department of Electrical Engineering and Computer Science and Research Laboratory of ElectronicsMassachusetts Institute of TechnologyCambridgeUSA

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