Patent ID: 8436630
Filing Date: 2013-05-07
Classification: G01J

Abstract:
1. A system for measuring an optical spectral response of a photoelectric device under test (DUT), comprising: a spectrally programmable light source providing a spectrally programmable light beam comprising in optically coupled sequence a broadband light source for emitting light, a dispersive element for dispersing said light, and a spatial light modulator for controlling an intensity and a spectra of said light to provide said spectrally programmable light beam; a light distributing device having at least one input portion coupled to receive said spectrally programmable light beam and a light distributing structure for distributing said spectrally programmable light beam in a known ratio to a first area and at least a second area, and a reference detector having a reference output positioned at said first area, wherein said photoelectric DUT is positioned at said second area.