Patent ID: 8971712
Filing Date: 2015-03-03
Classification: H04B

Abstract:
1. A method for providing carrier-embedded optical radio-over-fiber (RoF) communications, the method comprising: producing a radio frequency (RF) modulated optical signal that is associated with a first optical source and modulated with an electronic baseband; producing an intermediate frequency (IF) signal; producing a RF carrier signal; transmitting, by a first optical fiber, the RF modulated optical signal from the RoF Gateway Router to a remote access point; detecting, at the remote access point, the transmitted RF modulated optical signal to produce an electrical remote access point signal, wherein the remote access point signal is represented by (½)cos(2ω filtering the remote access point signal to pass a harmonic of the RF carrier signal to an uplink section of the remote access point; receiving a RF uplink signal; mixing the harmonic of the RF carrier signal with the received RF uplink signal to down-convert the received RF uplink signal to an IF uplink signal; modulating a second optical source or light from the second optical source with the IF uplink signal to produce an IF uplink optical signal; transmitting, by a second optical fiber, the IF uplink optical signal from the remote access point to the RoF Gateway Router; and detecting, at the RoF Gateway Router, the IF uplink optical signal.