Design of the microlens arrays coupling with imaging fiber bundle

YAN Xing-tao; YANG Jian-feng; XUE Bin; MA Xiao-long; LI Fu; ZHAO Yi-yi; BU Fan

doi:doi:10.1007/s11801-013-3016-4

光电子快报（英文版）, 2013, 9 (3): 169, Published Online: Oct. 12, 2017

Design of the microlens arrays coupling with imaging fiber bundle

论文大纲

YAN Xing-tao ^1,2,*YANG Jian-feng ¹XUE Bin ¹MA Xiao-long ¹LI Fu ¹ZHAO Yi-yi ^1,2BU Fan ^1,2

Author Affiliations

¹ Key Laboratory of Spectral Imaging Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China

² Graduate School of Chinese Academy of Sciences, Beijing 100039, China

Abstract

To ameliorate the disadvantages of imaging system coupled with imaging fiber bundle, a method by adding square aperture microlens arrays at both entrance and exit ends of the imaging fiber bundle is proposed to increase the system’s coupling efficiency. The expressions for solving the parameters of both ends’ microlens units are deducted particularly. The microlens arrays used for an infrared imaging fiber bundle with the single fiber diameter of 100 μm and core diameter of 70 μm are designed by this method. The simulation results show that compared with the system without microlens arrays, the fill factor of the imaging fiber bundle coupled microlens arrays system is increased from 44.4% to more than 90%, and the coupling efficiency is doubled too. So the design method is correct, and the introduction of microlens arrays into imaging fiber bundle coupled system is feasible and superior.

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YAN Xing-tao, YANG Jian-feng, XUE Bin, MA Xiao-long, LI Fu, ZHAO Yi-yi, BU Fan. Design of the microlens arrays coupling with imaging fiber bundle[J]. 光电子快报（英文版）, 2013, 9(3): 169.

Design of the microlens arrays coupling with imaging fiber bundle

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