Even frequency spacing spectrometer and optical coherence...

Details Even frequency spacing spectrometer and optical coherence... Even frequency spacing spectrometer and optical coherence...

2011-04-19

2011-04-19

Toatley, Gregory J (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

C250S351000, C250S339020, C250S461200, C356S326000, C356S432000, C356S305000

Reexamination Certificate

active

07929134

ABSTRACT:
This application describes a spectrometer that includes a set of collimating optics to collimate received EMR to produce a collimated EMR. The spectrometer also includes a first dispersive optical element for dispersing the collimated EMR and a second dispersive optical element spaced apart from the first dispersive optical element to produce further dispersed EMR. The first dispersive optical element and the second dispersive optical element cooperate to disperse received EMR into a plurality of even frequency spaced EMR spectra. The spectrometer also includes a detector positioned to receive the EMR after passing though an optical path that includes the set of collimating optics, the first dispersive optical element, the second dispersive optical element, and a set of focusing optics.

REFERENCES:
patent: 6002480 (1999-12-01), Izatt et al.
patent: 7355716 (2008-04-01), de Boer et al.
patent: 7440107 (2008-10-01), Pasternak

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