Advances in hyperspectral imaging technologies for multichannel fiber sensing

Jay Zakrzewski; Kevin Didona

doi:10.1117/12.818261

27 April 2009 Advances in hyperspectral imaging technologies for multichannel fiber sensing

Jay Zakrzewski, Kevin Didona

Proceedings Volume 7316, Fiber Optic Sensors and Applications VI; 73160O (2009) https://doi.org/10.1117/12.818261
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

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.

Citation Download Citation

Jay Zakrzewski and Kevin Didona "Advances in hyperspectral imaging technologies for multichannel fiber sensing", Proc. SPIE 7316, Fiber Optic Sensors and Applications VI, 73160O (27 April 2009); https://doi.org/10.1117/12.818261

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