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Optical Engineering

Further analysis of focusing performance of an ultra-small gradient-index fiber probe
Author(s): Chi Wang; Shubo Bi; Xueqin Xia; Yingjie Yu
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Paper Abstract

In order to optimize ultra-small gradient-index (GRIN) fiber probes and provide a theoretical prediction for the fabrication of such probes with high performance, focusing performance of the GRIN fiber probe is further analyzed based on the optical characteristic parameters. According to the optical model of the GRIN fiber probe and its mathematical expressions of characteristic parameters, the three-dimensional (3-D) function diagram is used for analyzing the impact of the lengths of probe components on the characteristic parameters. Partial derivatives of the mathematical expressions of characteristics are derived to analyze the mutation of focusing performance caused by the different lengths of probe components. According to the analytical results, our predictions suggest that focusing performance could be reflected through the 3-D function diagram between the characteristic parameters and the continuous change of the lengths of probe components. In addition, mutation occurs in the focusing performance of the GRIN fiber probe when the length of probe components changes. The research results are of practical guiding significance for the fabrication of GRIN fiber probes requiring specific optical focusing performance.

Paper Details

Date Published: 20 January 2014
PDF: 10 pages
Opt. Eng. 53(1) 013106 doi: 10.1117/1.OE.53.1.013106
Published in: Optical Engineering Volume 53, Issue 1
Show Author Affiliations
Chi Wang, Shanghai Univ. (China)
Shubo Bi, Shanghai Univ. (China)
Xueqin Xia, Shanghai Univ. (China)
Yingjie Yu, Shanghai Univ. (China)

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