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Proceedings Paper

Advances in hyperspectral imaging technologies for multichannel fiber sensing
Author(s): Jay Zakrzewski; Kevin Didona
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Paper Abstract

A spectrograph's design, e.g. the opto-mechanical system beginning at the entrance slit, and ending at the back focal plane position, directly impacts system level performance parameters including the height of the useable aperture, spatial and spectral resolving power, optical throughput efficiency, and dynamic range. The efficiency and integrity of both spatial and spectral input image reproduction within the entire back focal plane area is an often overlooked parameter leading to unnecessary acceptance of sacrificed system level performance. Examples of input images include the slit apertured area of a scene captured by a camera lens, a single optical fiber core located within the entrance aperture area, or a linear array of optical fiber cores stacked along the spatial height of the entrance aperture area. This study evaluates the spectral and spatial imaging performance of several aberration corrected high reciprocal dispersion retro-reflective concentric, as well as aberration corrected Offner imaging spectrographs which produce minimal degradation over a large focal plane. Ray trace images and pixilated area maps demonstrating spatial and spectral reproduction accuracy over the entire back focal plane are presented.

Paper Details

Date Published: 27 April 2009
PDF: 11 pages
Proc. SPIE 7316, Fiber Optic Sensors and Applications VI, 73160O (27 April 2009); doi: 10.1117/12.818261
Show Author Affiliations
Jay Zakrzewski, Headwall Photonics Inc. (United States)
Kevin Didona, Headwall Photonics Inc. (United States)

Published in SPIE Proceedings Vol. 7316:
Fiber Optic Sensors and Applications VI
Eric Udd; Henry H. Du; Anbo Wang, Editor(s)

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