Patent ID: 8103175

Claim:
An optical signal processing system, comprising: a first light modulator configured to receive a first optical signal, the first light modulator configured to place information on the first optical signal, and the first light modulator configured to produce, from at least the first optical signal and the information, a second optical signal comprising a first signal portion that is desired (a “desired signal portion”) and a second signal portion that is not desired (an “undesired signal portion”); a second light modulator configured to tune a first optical pump signal to a Brillouin frequency that is less than, but corresponding to, a frequency of the undesired signal portion; a light conductor configured to receive as a first input the second optical signal and as a second input the first optical pump signal tuned to the Brillouin frequency, wherein the optical signal processing system is configured to cause the first optical pump signal tuned to the Brillouin frequency to induce a Stimulated Brillouin Scattering effect at the light conductor and is configured to attenuate the undesired signal portion; a splitter configured to receive the first optical signal and to send the first optical signal to the first light modulator and to the second light modulator; an isolator configured to receive the second optical signal, to send the second optical signal to the light conductor, and to isolate the light conductor from the first light modulator; a first radio frequency generator configured to generate a first radio frequency signal; and a first bias control unit configured to generate a first bias control signal, wherein the second light modulator is configured to receive the first radio frequency signal, the first bias control signal, and the first optical signal, and to produce the first optical pump signal.