Modified Sagnac Loop Coherent Phase Modulated RF Photonic Link With an ACP-OPLL

The first Sagnac loop coherent phase modulated RF photonic link employing an ACP-OPLL linear phase demodulator was presented. This structure demonstrated stable signal transmission over a 1-km long coherent RF photonic link. Except for optical loss of the long optical fiber, no penalties in the noise and linearity performance were observed.