| CPC H04B 10/11 (2013.01) [H04B 10/516 (2013.01)] | 14 Claims |
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1. A single-sideband reduced-carrier phase-shifting electro-optic modulator (SSB-RC-PS-EOM) comprising:
an optical port for receiving an optical carrier signal;
a radio frequency (RF) port for receiving an RF signal;
a single-sideband (SSB) modulator for modulating the RF signal with a first portion of the optical carrier signal, shifting the RF signal to a frequency spectrum of the optical carrier signal and producing a modulated signal;
a carrier suppression circuit to amplitude modulate and phase modulate a second portion of the optical carrier signal to produce an equal amplitude phase shifted optical signal with a phase opposite to phase of the modulated signal, wherein the amplitude and phase modulation of the carrier suppression circuit are dynamically controlled to directly match an amplitude and inversely match a phase of the modulated signal;
a first combiner to combine the modulated signal from the SSB modulator with the equal amplitude phase shifted optical signal to produce a first combined optical signal;
a carrier injection circuit to amplitude modulate and phase modulate a third portion of the optical carrier signal to produce an amplitude and phase modulated optical signal, wherein phase and amplitude modulation of the carrier injection circuit is dynamically controlled; and
a second combiner to combine the first combined optical signal and the amplitude and phase modulated optical signal to produce a reduced carrier optical signal as an optical output signal.
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