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In this paper, the spectral analysis of a fourport distributed Bragg reflector-micro ring resonator (DBR-MRR) is studied both analytically and numerically. First, the basic theory of the DBR-MRR is discussed and the effect of DBRs on the resonant mode-split is studied analytically. Then, the theory is supported with a numerical study using the finite difference time domain method. Finally, a potential application of the proposed structure is discussed: a sensor that keeps the concentration of a substance within a desired range; a concentration range controller.

Original languageEnglish
Article number085803
Number of pages7
JournalJournal of Optics
Issue number8
Early online date20 Jul 2018
Publication statusPublished - Aug 2018


  • micro ring resonator
  • optic sensor
  • resonance mode split

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