Patent ID: 8781325
Filing Date: 2014-07-15
Classification: H04B,H04L

Abstract:
1. A method of generating a multi-subcarrier optical signal, the method comprising: oscillating one or more signals to generate one or more oscillating signals; amplifying the one or more oscillating signals to generate one or more amplified oscillating signals; phase modulating a lightwave through a series of at least two phase modulators, comprising a first phase modulator and a second phase modulator, the phase modulators being driven by the one or more amplified oscillating signals comprising a first amplified oscillating signal and a second amplified oscillating signal, to generate a phase modulated lightwave, wherein the phase modulated lightwave comprises between 15 and 30 subcarriers, exclusively, and wherein the first phase modulator is driven by the first amplified oscillating signal and the second phase modulator is driven by the second amplified oscillating signal; intensity modulating the phase modulated lightwave using an intensity modulator, the intensity modulator being driven by one of the one or more amplified oscillating signals, to generate the multi-subcarrier optical signal; and phase shifting the one or more amplified oscillating signals to generate one or more amplified oscillating phase shifted signals, wherein the second phase modulator is driven by one of the one or more amplified oscillating phase shifted signals to generate the subcarriers.