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Vernier effect of cascaded dual microring sensor

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Abstract

We demonstrate a Vernier microring sensor consisting of a traditional cascaded dual microring resonator and an additional measurement range unit. The sensor’s performance is simulated for different concentrations of aqueous solutions of ethylene glycol (\(\hbox {C}_2 \hbox {H}_6 \hbox {O}_2 )\). The theoretical sensitivity of our system is as high as 7386 nm / RIU, an order of magnitude much larger than that of the traditional cascaded dual microring sensor (562 nm / RIU), 13.1 times more than the traditional cascaded dual microring sensor. At the same time, the measurement range can reach as high as \(\hbox {2.49}\times 10 ^{- 2}\) RIU.

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Acknowledgements

This project was supported by the National Natural Science Foundation of China (Grant No. 11504074) and the State Key Laboratory of Quantum Optics and Quantum Optics Devices, Shanxi University, Shanxi, China (Grant No. KF201601).

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Authors and Affiliations

  1. College of Science, Hangzhou Dianzi University, Zhejiang, 310018, China

    C Y Zhao, J X Liao & L Zhang

  2. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan, 030006, China

    C Y Zhao

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  1. C Y Zhao
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  2. J X Liao
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  3. L Zhang
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Correspondence to C Y Zhao.

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Zhao, C.Y., Liao, J.X. & Zhang, L. Vernier effect of cascaded dual microring sensor. Pramana - J Phys 91, 81 (2018). https://doi.org/10.1007/s12043-018-1654-6

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  • DOI: https://doi.org/10.1007/s12043-018-1654-6

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