Patent ID: 9698913
Date: 2017-07-04
CPC Classifications: H04B

Claim:
1. A phase-modulated optical link comprising: a first light source comprising a first light source output, the first light source including a phase-modulated light source; a second light source comprising a second light source output, the second light source including a continuous-wave light source; a phase encoder comprising a phase encoder input in optical communication with the first light source output, the phase encoder further comprising a signal input and a phase-encoded optical signal output; a splitter comprising a splitter input in optical communication with the phase-encoded optical signal output, the splitter further comprising a first splitter output and a second splitter output, wherein the splitter is adapted to receive a splitter optical signal at the splitter input and provide a first portion of the splitter optical signal at the first splitter output and a second portion of the splitter optical signal at the second splitter output, the splitter optical signal being based on an optical signal of the phase-modulated light source; a distortion compensation element comprising: a detector comprising a first detector input in optical communication with the second splitter output and a second detector input in optical communication with the variable optical attenuator, the detector further comprising a signal output, the detector being adapted to produce an output radio-frequency signal based on the attenuated peak-selected optical comb signal and the second portion of the splitter optical signal.