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Design theory of high-Q optical ring resonator with asymmetric three-layered dielectrics

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Abstract

An optical ring resonator with asymmetric three-layered dielectrics is shown to have an anomalously highQ-factor compared with the conventional symmetric three-layered ring resonator by several orders of magnitude for suitably chosen parameters. A new leaky mode which can propagate on the asymmetric structure is found having an extremely small attenuation loss near the cut-off frequency of the guided mode, but which does not exist in the symmetric structure. Optimum values of the normalized frequency for a single-mode operation to suppress the undesired leaky modes are discussed. It is also shown that the size of the ring resonator using the asymmetric structure can be reduced considerably from that of the ordinary symmetric resonator.

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Author notes

  1. Gar Lam Yip

    Present address: Department of Electrical Engineering, McGill University, University Street, 3480, Montreal, Quebec, Canada

  2. Mitsunobu Miyagi

    Present address: Research Institute of Electrical Communication, Tohoku University, 980, Sendai, Japan

Authors and Affiliations

  1. Department of Electrical Engineering, McGill University, University Street, 3480, Montreal, Quebec, Canada

    Mitsunobu Miyagi

Authors
  1. Mitsunobu Miyagi
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  2. Gar Lam Yip
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Miyagi, M., Yip, G.L. Design theory of high-Q optical ring resonator with asymmetric three-layered dielectrics. Opt Quant Electron 10, 425–433 (1978). https://doi.org/10.1007/BF00620307

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  • DOI: https://doi.org/10.1007/BF00620307

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