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Improved Semivectorial Field Correction Method for Efficient and Accurate Design Analysis of Fused 2 × 2 Fiber Coupler Devices

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Abstract

A simple and accurate analysis of mode coupling characteristics in fused 2 × 2 fiber-couplers is presented. The model is based on a combined perturbation correction technique and semivectorial field correction scheme of mode analysis. Realistic model of taper profile and coupler cross section owing to fabricated structures, in the framework of polarized supermode-beating description, successfully interprets a variety of measured coupler characteristics. With the inherent accuracy of finite difference algorithm, the analytical basis of perturbation correction method enables the mode convergence abruptly fast as required for a design analysis. Typical results of our method and comparison with measured coupler characteristics show the efficacy of our model as an accurate and efficient design recipe.

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Authors and Affiliations

  1. Institute for Infocomm Research, Innovation Centre, Block 2, 18 Nanyang Drive, Singapore, 637723

    P.Roy Chaudhuri

  2. Department of Physics, Indian Institute of Technology Delhi, New Delhi, 110 016, India

    B. P. Pal & M. R. Shenoy

Authors
  1. P.Roy Chaudhuri
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  2. B. P. Pal
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  3. M. R. Shenoy
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Chaudhuri, P., Pal, B.P. & Shenoy, M.R. Improved Semivectorial Field Correction Method for Efficient and Accurate Design Analysis of Fused 2 × 2 Fiber Coupler Devices. Optical and Quantum Electronics 36, 641–657 (2004). https://doi.org/10.1023/B:OQEL.0000034724.43423.73

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  • DOI: https://doi.org/10.1023/B:OQEL.0000034724.43423.73

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