Patent ID: 7634201
Filing Date: 2009-12-15
Classification: G02B,H03D,H04B

Abstract:
1. A device, comprising: an electrical port to receive an input electrical oscillation signal at an input carrier frequency in a radio frequency, microwave, or millimeter wave spectral range; a first laser to produce a first continuous-wave (CW) laser beam at a first laser frequency; an optical modulator to receive the first CW laser beam and the input signal and operable to modulate the first CW laser beam in response to the input signal to produce a modulated optical beam that carries the input signal; a tunable optical filter to filter the modulated optical beam from the optical modulator to select at least one spectral component in the modulated optical signal while rejecting light at the first laser frequency and other spectral components and to output a filtered modulated optical beam that carries the at least one selected spectral component; a second laser to produce a second CW laser beam at a second laser frequency, the first and second lasers are phase locked relative to each other; and an optical detector to receive both the filtered modulated optical beam from the tunable optical filter and the second CW laser beam to produce a receiver output signal at an output frequency.