Scanning spectrometer with multiple photodetectors

Details Scanning spectrometer with multiple photodetectors Scanning spectrometer with multiple photodetectors

2008-08-12

2010-12-14

Nguyen, Tu T (Department: 2886)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

Reexamination Certificate

active

07852475

ABSTRACT:
A scanning optical spectrometer with a detector array is disclosed, in which position of focused spot of light at the input of a dispersive element such as arrayed waveguide grating (AWG) with a slab input, is scanned using a micro-electro-mechanical (MEMS) tiltable micromirror so as to make the dispersed spectrum of light scan over the detector array coupled to the AWG. Sub-spectra recorded using individual detectors are concatenated by a processor unit to obtain the spectrum of input light.

REFERENCES:
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patent: 6118530 (2000-09-01), Bouevitch et al.
patent: 6657186 (2003-12-01), Graves
patent: 6753958 (2004-06-01), Berolo et al.
patent: 7035505 (2006-04-01), Shen et al.
patent: 7130505 (2006-10-01), Shen

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