phase-sensitive optical amplifier and a method of designing the same, as well as, BPSK signal phase noise with the phase-sensitive optical amplifier suppressor, BPSK signal regenerator, QPSK signal inverse multiplexer and QPSK signal regenerator

摘要

The present invention to obtain a large gain extinction ratio in a small non-linear effect. A phase sensitive optical amplifier of the present invention, a pumping light generating means, and the multiplexed light generating means for generating and combining the input signal light and the pumping light multiplexed light, wherein said signal light pump 20dB and the phase difference adjusting means, anda nonlinear medium for generating a parametric process relative phase difference by inputting the multiplexed light that has been adjusted, the gain extinction ratio for the purpose of adjusting the relative phase difference between the optical match a circle having a radius the complex amplitude value of the output signal light of the phase sensitive optical amplifier to be determined, when it is drawn in the complex plane around the origin, the phase of the input signal light is orthogonal component as above As the complex amplitude of the output signal light at the time of fall within the circle, the intensity of the pump light, nonlinear coefficient of the nonlinear medium, a propagation length and variance value has been set, and the nonlinear the product of the intensity of the pump light and the propagation length and the constant I and less than 1.7rad. .BACKGROUND 10