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Proceedings Paper

Recovery of graded index profile in planar waveguide by cubic spline function
Author(s): Weijun Liao; Xianfeng Chen; Yuping Chen; Yuxing Xia; Yingli Chen
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Paper Abstract

We present in this paper a method to recover the refractive index profile of graded index waveguide from the effective indices by cubic spline interpolation function. It is proved by numerical analysis of several typical index distributions that the refractive index profile can be reconstructed closely to its exact profile with the presented interpolation model. This method can reliably retrieve index profile of both more-mode (more than 4 guiding mode) and fewer-mode (2-4) waveguides.

Paper Details

Date Published: 17 January 2005
PDF: 11 pages
Proc. SPIE 5644, Optoelectronic Devices and Integration, (17 January 2005); doi: 10.1117/12.573527
Show Author Affiliations
Weijun Liao, Shanghai Jiao Tong Univ. (China)
Xianfeng Chen, Shanghai Jiao Tong Univ. (China)
Yuping Chen, Shanghai Jiao Tong Univ. (China)
Yuxing Xia, Shanghai Jiao Tong Univ. (China)
Yingli Chen, Shanghai Jiao Tong Univ. (China)


Published in SPIE Proceedings Vol. 5644:
Optoelectronic Devices and Integration
Hai Ming; Xuping Zhang; Maggie Yihong Chen, Editor(s)

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