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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 35 — Dec. 10, 2011
  • pp: 6446–6451

Wide field-of-view imaging spectrometer using imaging fiber bundles

Xin Cheng, Jing Wang, Qingsheng Xue, Yongfeng Hong, and Shi Li  »View Author Affiliations

Applied Optics, Vol. 50, Issue 35, pp. 6446-6451 (2011)

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A field-of-view-folding approach is proposed to extend the field of view (FOV) of a dispersive imaging spectrometer after introducing several linear arrays of imaging fiber bundles to which to replace the slit. The fiber bundles can flexibly connect fore-optics with a spectrometer to yield an imaging fiber-optic spectrometer (IFOS). The technology of FOV segmenting and folding, which can decrease simultaneously the dimension and spectral distortion of the imaging spectrometer, is described in detail. Because of the sampling function of the fiber bundles, the IFOS is a double-sampling imaging system. We analyze the effect of fiber coupling on the modulation transfer function (MTF) and then develop a cascade MTF model to estimate the imaging performance of the IFOS. A spaceborne IFOS example is presented to describe how the method can be used.

© 2011 Optical Society of America

OCIS Codes
(060.2350) Fiber optics and optical communications : Fiber optics imaging
(110.4100) Imaging systems : Modulation transfer function
(120.3620) Instrumentation, measurement, and metrology : Lens system design
(110.4234) Imaging systems : Multispectral and hyperspectral imaging

ToC Category:
Imaging Systems

Original Manuscript: June 28, 2011
Revised Manuscript: September 4, 2011
Manuscript Accepted: September 4, 2011
Published: December 2, 2011

Xin Cheng, Jing Wang, Qingsheng Xue, Yongfeng Hong, and Shi Li, "Wide field-of-view imaging spectrometer using imaging fiber bundles," Appl. Opt. 50, 6446-6451 (2011)

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