Patent ID: 8693004
Filing Date: 2014-04-08
Classification: G01J,G01N

Abstract:
1. A system for performing frequency-comb measurements, comprising: at least one broad band light source configured to provide a light beam; a first etalon configured to generate a first frequency-comb signal in response to receiving the light beam from the at least one broad band light source, the first frequency-comb signal defining a spectrum of light that includes multiple optical frequencies spaced by a first frequency spacing; a second etalon configured to generate a second frequency-comb signal in response to receiving the light beam from the at least one broad band light source, the second frequency-comb signal defining a second spectrum of light that includes one or more optical frequencies spaced by a second frequency spacing that is different from the first frequency spacing; and a detector configured to detect multiple beat frequencies of the first and second frequency-comb signals.