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Photonic crystal ring resonator based add-drop filter using hexagonal rods for CWDM systems

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Abstract

In this paper, theoretical analysis of two-dimensional photonic crystal ring resonator (2D PCRR) based add-drop filter (ADF) is presented for coarse wavelength division multiplexing (CWDM) system to drop a channel at 1511 nm using hexagonal rods that are positioned in the square lattice. The 2D finite difference time domain (2D FDTD) method and plane wave expansion (PWE) method are used for obtaining the filter response and band structure of the filter respectively. Close to 100% dropping and coupling efficiencies at 1511 nm and 16 nm of bandwidth are observed through simulation. This is very well meeting the requirement of ITU-T G. 694.2 standard, which is specified for metro access and short haul optical networks. The overall size of the proposed filter is 11.4 μm ×11.4 μm. It can also be used in integrated optics.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, Pondicherry Engineering College, Puducherry, 605014, India

    S. Robinson & R. Nakkeeran

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  1. S. Robinson
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  2. R. Nakkeeran
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Correspondence to S. Robinson.

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Robinson, S., Nakkeeran, R. Photonic crystal ring resonator based add-drop filter using hexagonal rods for CWDM systems. Optoelectron. Lett. 7, 164–166 (2011). https://doi.org/10.1007/s11801-011-0172-2

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  • DOI: https://doi.org/10.1007/s11801-011-0172-2

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