Circuit level implementation of photonic crystal devices

Mohammad Hasan Rezaei | Mohammad Hasan yavari

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URL :   http://research.shahed.ac.ir/WSR/WebPages/Report/PaperView.aspx?PaperID=137834
Date :  2020/10/07
Publish in :    Applied Optics
DOI :  https://doi.org/10.1364/AO.395250
Link :  http://dx.doi.org/10.1364/AO.395250
Keywords :circuit model, Photonic crystal, Optical switch

Abstract :

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Different types of photonic crystal components have been modeled by approximate RLC circuits. The proposed lumped circuits exploit the analogy of photonic crystal elements and RLC circuits. They are either coupled to each other or inserted like lumped circuits to imitate wave propagation within the photonic devices. Different examples such as side-coupled waveguide–cavity systems, side-coupled cavity–cavity systems, and improved structures are investigated for evaluating the theory. It is shown that the proposed circuits are exact enough to be substituted into the complicated calculations of numerical methods. In addition, the presented practical and straightforward procedure can be employed for flexible and efficient design. The results are verified using the finite-difference time-domain numerical simulations and coupled-mode theory for various devices