Patent ID: 8054466
Filing Date: 2011-11-08
Classification: G01J

Abstract:
1. An optical referencing system, comprising: an optical bench receiving a tunable optical signal from a tunable signal source via an input polarization controlling optical fiber; a wavelength reference detector mounted on the bench for determining a wavelength of the tunable optical signal; a wavelength reference mounted on the optical bench for filtering the tunable optical signal to generate a fringe pattern that is detected by the wavelength reference detector; an amplitude reference detector mounted on the optical bench for determining an amplitude of the tunable optical signal; an output optical signal polarization controlling fiber for transmitting the tunable optical signal directly to a sample from the optical bench; a signal detector for directly receiving light from the sample illuminated by the tunable optical signal; and a controller that simultaneously monitors the wavelength reference detector to produce wavelength data as a function of time and the amplitude reference detector to produce amplitude data as a function of time for the tunable optical signal.