Patent ID: 9413471
Filing Date: 2016-08-09
CPC Classification: H04B

Claim Text:
1. A compact photonic radio frequency receiver system for space and airborne applications, the system comprising: a laser source configured to generate laser light; radio frequency (RF) and local oscillator (LO) input ports configured to receive RF and LO signals, respectively; one or more centimeter scale or smaller waveguide phase modulators coupled to the laser source and configured to receive the RF and LO signals and to modulate the laser light with the RF and LO signals in a first and a second path and to generate phase-modulated laser lights including an RF-modulated light signal and an LO-modulated light signal; a first and a second centimeter scale or smaller filters coupled to the centimeter scale or smaller waveguide phase modulators, the first centimeter scale or smaller filter configured to separate a desired spectral band in the phase-modulated laser light of the first path and the second centimeter scale or smaller filter configured to pass a first portion of the LO-modulated light signal for heterodyne purposes and to reflect a second portion of the LO modulated signal to facilitate wavelength locking of the laser light of the second path; and an optical combiner configured to combine output laser lights of the first and second filters.