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Updated: May 25, 2026
09:43
Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
[Effect of spectrum distortion on modulation transfer function in imaging fiber-optic spectrometer]
Xin Cheng1, Jing Wang, Bao Zhang
1Changchun Institute of Optics Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China. chengxin0301214@163.com
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|January 19, 2012
Summary
This study introduces an imaging fiber-optic spectrometer, enhancing spectral analysis. A new model evaluates its performance, accounting for fiber sampling and spectrum distortion to improve modulation transfer function (MTF) calculations.
Area of Science:
- Optics and Photonics
- Spectroscopy
- Image Science
Context:
- Dispersion imaging spectrometers traditionally use slits.
- Imaging fiber bundles are now used as a slit substitute.
- This creates an imaging fiber-optic spectrometer system.
Purpose:
- To analyze the impact of spectrum distortion on system modulation transfer function (MTF).
- To develop a model for evaluating the MTF of imaging fiber-optic spectrometers.
- To address misalignment issues between optical fiber images and detector pixels in double sampling systems.
Summary:
- A new MTF computation model was developed for imaging fiber-optic spectrometers.
- This model incorporates MTF terms for fiber optic sampling and spectrum distortion-induced misalignment.
- The model was used to evaluate the MTF of an airborne visible near-infrared spectrometer.
Impact:
- Provides a method for calculating MTF in double sampling systems.
- Offers guidance for designing improved imaging fiber-optic spectrometers.
- Enhances understanding of factors affecting spectral imaging system performance.
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