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Design of a polymer directional coupler electro-optic switch using two-section reversed electrodes

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Abstract

By using the coupled mode theory, electro-optic modulation theory, conformal transforming method and image method, the structure is designed, the parameters are optimized, and the characteristics are analyzed for a polymer directional coupler electro-optic switch with two-section reversed electrodes. Simulation shows that the designed device exhibits excellent switching functions. Under the operation wavelength of 1550 nm, the electro-optic coupling region length is 4751 μm, the cross-state and bar-state voltages are about 1.22 and 2.65 V, and the insertion loss and crosstalk are less than 2.21 and −30 dB, respectively. By slightly adjusting the state voltages, the blight of the fabrication errors on the switching characteristics can be easily eliminated. The calculation results of the presented technique are in good agreement with those of the beam propagation method (BPM).

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Authors and Affiliations

  1. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, P.R. China

    C.-T. Zheng, C.-S. Ma, X. Yan, X.-Y. Wang & D.-M. Zhang

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  1. C.-T. Zheng
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  2. C.-S. Ma
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  3. X. Yan
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  4. X.-Y. Wang
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  5. D.-M. Zhang
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Correspondence to C.-S. Ma.

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Zheng, CT., Ma, CS., Yan, X. et al. Design of a polymer directional coupler electro-optic switch using two-section reversed electrodes. Appl. Phys. B 96, 95–103 (2009). https://doi.org/10.1007/s00340-009-3545-5

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  • DOI: https://doi.org/10.1007/s00340-009-3545-5

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