Novel methods for measuring modulation transfer function for fiber optic taper

Wei Zhang; Yaoxiang Wang; Weijian Tian; Weihong Ma; Hongjian Zhang; Aijuan Sun

doi:10.1117/12.668126

1 February 2006 Novel methods for measuring modulation transfer function for fiber optic taper

Wei Zhang, Yaoxiang Wang, Weijian Tian, Weihong Ma, Hongjian Zhang, Aijuan Sun

Proceedings Volume 6034, ICO20: Optical Design and Fabrication; 603413 (2006) https://doi.org/10.1117/12.668126
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

As a relay optical component, fiber optic taper has become more important and more widely used in the integrated taper assembly image intensified sensors for military and medical imaging application. However, the method for evaluating the quality of output images from the fiber optic taper is few. In this article, the Modulation Transfer Function (MTF) is introduced and measured to evaluate the image quality of fiber optic taper. Because fiber optic taper is of a mosaic array architecture, there are some new problems need to be resolved in defining MTF of it. And there also should be some special requirements in MTF measurement. Two methods including edge scanning and point imaging analyzing are introduced in measuring MTF of fiber optic taper, in which the incident light, scanning step and scanning range are specially limited. Experiments show that the results of the measurements consist with the theoretical analysis simulated by computer. And the spatial averaged MTF of fiber optic taper has been gotten by two means. It is concluded that the MTF value measured by point imaging is always some higher than measured by edge scanning, because the point imaging is more weakly effected by the fiber arrangement in taper.

Citation Download Citation

Wei Zhang, Yaoxiang Wang, Weijian Tian, Weihong Ma, Hongjian Zhang, and Aijuan Sun "Novel methods for measuring modulation transfer function for fiber optic taper", Proc. SPIE 6034, ICO20: Optical Design and Fabrication, 603413 (1 February 2006); https://doi.org/10.1117/12.668126

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