Littrow spectrometer and a spectral domain optical coherence...

Details Littrow spectrometer and a spectral domain optical coherence... Littrow spectrometer and a spectral domain optical coherence...

2005-08-03

2008-11-25

Geisel, Kara E (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

Reexamination Certificate

active

07456957

ABSTRACT:
A compact conical diffraction Littrow spectrometer is disclosed. The distortion of the conically diffracted spectral component beams is compensated and as a result, the diffracted spectral beams can still be focused into a substantially straight line to shine onto a detector array. A spectral domain optical coherence tomography (SD-OCT) system incorporating a Littrow spectrometer or a spectrometer having one or more shared focusing element(s) and an SD-OCT system incorporating a spectrometer that is substantially polarization independent are also disclosed.

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