Patent ID: 11942995
Assignee: INSTITUTO TECNOLóGICO DE AERONáUTICA—ITA
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 0:
1. A photonic frequency converter for converting values above and below an input radio frequency (RF) signal, comprising:
an integrated optoelectronic oscillator (OEO) comprising an optical link and a feedback loop in radio frequency (RF) domain;
an injection circuit (IC) for injecting the input radio frequency (RF) signal, wherein the optoelectronic oscillator (OEO) being a local oscillator (LO) of frequency conversion operation using only a single Mach-Zehnder (MZ) electro-optical modulator and a single photodetector, which allows to perform simultaneously the frequency conversion into the values above and below (down/up converter) the input radio frequency (RF) signal;
a radio frequency (RF) band pass filter; and
a power splitter connected between the single photodetector and the radio frequency (RF) band pass filter;
wherein more than one signal is simultaneously applied for frequency conversion;
wherein a first radio frequency (RF) signal source injects a signal with a frequency f1 and a second radio frequency (RF) signal source injects a signal with a frequency f2;
wherein the signal with the frequency f1 and the signal with the frequency f2 are combined in a first power combiner to then be injected into the optoelectronic oscillator (OEO) through a second power combiner; and
wherein the optoelectronic oscillator (OEO) generates a frequency signal f0, defined by a frequency response band of the radio frequency (RF) band pass filter.