The design of a 2x2 polymer TIR switch based on thermal field analysis employing thermo-optic effect

Hui Yu; Xiaoqing Jiang; Jianyi Yang; Xihua Li; Minghua Wang; Yubo Li

doi:10.1117/12.574951

10 January 2005 The design of a 2×2 polymer TIR switch based on thermal field analysis employing thermo-optic effect

Hui Yu, Xiaoqing Jiang, Jianyi Yang, Xihua Li, Minghua Wang, Yubo Li

Proceedings Volume 5623, Passive Components and Fiber-based Devices; (2005) https://doi.org/10.1117/12.574951
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

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.

Citation Download Citation

Hui Yu, Xiaoqing Jiang, Jianyi Yang, Xihua Li, Minghua Wang, and Yubo Li "The design of a 2×2 polymer TIR switch based on thermal field analysis employing thermo-optic effect", Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); https://doi.org/10.1117/12.574951

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