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Proceedings Paper

The design of a 2x2 polymer TIR switch based on thermal field analysis employing thermo-optic effect
Author(s): Hui Yu; Xiaoqing Jiang; Jianyi Yang; Xihua Li; Minghua Wang; Yubo Li
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Paper Abstract

In this paper, the beam-propagation characteristics of the total internal reflection induced by the thermo-optic effect are investigated. Based on the Fourier heat transmission principle and variable separation method, we derive the analytical transient expression of thermal field for general thermo-optic (TO) devices. Based on the analytical expression, time response and steady-state temperature distribution of thermal-optic devices are presented. The expansion rule of total internal reflection (TIR) in the thermal field is developed mathematically, and quantitative calculation is given about specific expansion value. As an illustration and application of this rule, a X-junction 2×2 TIR switch is designed to accomplish the object of high reflection efficiency. The computer simulation results show the structure presents a high reflection coefficient indeed, the reflection loss is only -0.76dB. The computer simulation results agree with the calculation well.

Paper Details

Date Published: 10 January 2005
PDF: 10 pages
Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); doi: 10.1117/12.574951
Show Author Affiliations
Hui Yu, Zhejiang Univ. (China)
Xiaoqing Jiang, Zhejiang Univ. (China)
Jianyi Yang, Zhejiang Univ. (China)
Xihua Li, Zhejiang Univ. (China)
Minghua Wang, Zhejiang Univ. (China)
Yubo Li, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 5623:
Passive Components and Fiber-based Devices
Yan Sun; Shuisheng Jian; Sang Bae Lee; Katsunari Okamoto, Editor(s)

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