Using position-sensitive detectors for wavelength determination

Details Using position-sensitive detectors for wavelength determination Using position-sensitive detectors for wavelength determination

2007-12-18

2007-12-18

Turner, Samuel A. (Department: 2877)

Optics: measuring and testing

By light interference

Having partially reflecting plates in series

C356S454000

Reexamination Certificate

active

10922870

ABSTRACT:
A chip-size wavelength detector includes a film with laterally varying transmission properties and a position-sensitive detector. The film transmits a different wavelength as a function of lateral position across the film. The position of a spot of light transmitted through the film will shift, depending on the wavelength of the light. The shift is measured by the position-sensitive detector.

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