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Highly sensitive sensor based on 4×4 multimode interference coupler with microring resonators

TRUNG-THANH LE1,*

Affiliation

  1. International School (VNU-IS), Vietnam National University (VNU), Hanoi, Vietnam

Abstract

This study proposes a novel optical integrated structure using only one 4x4 multimode interference (MMI) coupler with support of two microring resonators for glucose and ethanol sensor. Due to the presence of the analyte, the wavelength shift of the output spectrum is realized. The proposed structure can provide a high sensitivity of 721 nm/RIU, low detection limit of 2.8x105 and good figure of merit of 5x1016 for glucose sensing..

Keywords

Glucose sensor, Multimode interference, Microring resonator, Integrated optics.

Submitted at: June 12, 2017
Accepted at: June 7, 2018

Citation

TRUNG-THANH LE, Highly sensitive sensor based on 4×4 multimode interference coupler with microring resonators, Journal of Optoelectronics and Advanced Materials Vol. 20, Iss. 5-6, pp. 264-270 (2018)