Patent ID: 7057785
Filing Date: 2006-06-06
Classification: H04B

Abstract:
1. Two-stage optical regenerator for regenerating a data signal comprising a series of optical pulses and having a predetermined bit period, the regenerator having first and second stages each comprising: (i) a modulator for modulating a reference signal with an input signal; and (ii) an interferometer for causing the modulated reference signal to interfere with another version of the modulated reference signal delayed by less than one bit period of the data signal to regenerate the input signal; in which the input signal of the modulator of the first stage of the regenerator comprises the data signal, and the input signal of the modulator of the second stage of the regenerator comprises the output from the first stage of the regenerator, wherein relative phase offsets are induced at the outputs of the two interferometers of the regenerator to obtain a condition selected from: