The equivalence between squeezing of the loss and phase-dependent amplification of the signal in an optical transmission line is shown. The properties of the radiation at the end of a lossy line, where N phase sensitive linear amplifiers have been inserted, are analyzed and discussed. In the large N limit a logarithmic dependence of the noise on the loss, which reduces the degradation of the signal-to-noise ratio, is obtained. It is also shown that by considering a χ(2) waveguide the same result can be achieved.

Parametric Amplification and Signal-to-Noise Ratio in Optical Transmission Lines

MECOZZI, ANTONIO;
1990-01-01

Abstract

The equivalence between squeezing of the loss and phase-dependent amplification of the signal in an optical transmission line is shown. The properties of the radiation at the end of a lossy line, where N phase sensitive linear amplifiers have been inserted, are analyzed and discussed. In the large N limit a logarithmic dependence of the noise on the loss, which reduces the degradation of the signal-to-noise ratio, is obtained. It is also shown that by considering a χ(2) waveguide the same result can be achieved.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11697/1709
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