Author： Yan Xin Zheng Chuan-Tao Wang Xian-Yin Zhang Da-Ming Ma Chun-Sheng
Publisher： Taylor & Francis Ltd
ISSN： 1362-3044
Source： Journal of Modern Optics, Vol.55, Iss.12, 2008-07, pp. : 1859-1869
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Abstract
By using the conformal transformation, method of images, electro-optic modulation theory and coupled mode theory, an optimum design is performed, and the characteristics are analyzed for a polymer directional coupler electro-optic switch with a rib waveguide structure. The simulation results show that the coupling length is about 4420 µm, and the switching voltage is about 16.2 V for the operation wavelength 1550 nm. Under the operation voltages of 0 and 16.2 V, the insertion loss and the crosstalk of the coupling region are less than 0.30 and - 20 dB within the ranges of the wavelength from 1520 to 1580 nm and the coupling region length from 4130 to 4710 µm.
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