Modeling of Mach-Zehnder Interferometric Sensors Employing Ring-Resonator Circuits for Slow-Light Enhancement

The performance of symmetric Mach-Zehnder interferometric (<italic>MZI</italic>) sensor employing ring-resonator circuits for slow-light enhancement of the sensor performance was theoretically investigated. The slow-light structures considered in this study are coupled-resonator optical...

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Main Author: Henri P. Uranus
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Photonics Journal
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Online Access:https://ieeexplore.ieee.org/document/10313014/
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author Henri P. Uranus
author_facet Henri P. Uranus
author_sort Henri P. Uranus
collection DOAJ
description The performance of symmetric Mach-Zehnder interferometric (<italic>MZI</italic>) sensor employing ring-resonator circuits for slow-light enhancement of the sensor performance was theoretically investigated. The slow-light structures considered in this study are coupled-resonator optical waveguide (<italic>CROW</italic>), four-port single ring-resonator (<italic>FPRR</italic>), and two-port single ring-resonator (<italic>TPRR</italic>) circuits. The performance of the sensors was quantitatively formulated for resolution of refractive index of measurand and figure of merit (<italic>FoM</italic>) with respect to similar <italic>MZI</italic> without employing slow-light structure. The effect of attenuation constant of mode traveling in the ring-resonator to the theoretical ultimate sensor resolution limited by available insertion loss budget was also discussed. Taking realistic ring attenuation constant of 1 dB&#x002F;cm, ring radius of 300 &#x03BC;m, and 20 dB insertion loss budget, the theoretical ultimate sensing performance using a single-resonator <italic>TPRR</italic> can reach resolution of 3.63E-10 RIU which is 5 times better than single-resonator <italic>FPRR</italic> and 3-resonator <italic>CROW</italic> while giving <italic>FoM</italic> of 5 and 15 times better compared to circuit employing <italic>FPRR</italic> and 3-resonator <italic>CROW</italic>, respectively.
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spelling doaj.art-2188b9ca9a1c4c8ca65005d905c8a6142023-12-02T00:00:28ZengIEEEIEEE Photonics Journal1943-06552023-01-011561910.1109/JPHOT.2023.333098510313014Modeling of Mach-Zehnder Interferometric Sensors Employing Ring-Resonator Circuits for Slow-Light EnhancementHenri P. Uranus0https://orcid.org/0000-0001-7900-7552Integrated Optical MicroSystems Group, University of Twente, Enschede, The NetherlandsThe performance of symmetric Mach-Zehnder interferometric (<italic>MZI</italic>) sensor employing ring-resonator circuits for slow-light enhancement of the sensor performance was theoretically investigated. The slow-light structures considered in this study are coupled-resonator optical waveguide (<italic>CROW</italic>), four-port single ring-resonator (<italic>FPRR</italic>), and two-port single ring-resonator (<italic>TPRR</italic>) circuits. The performance of the sensors was quantitatively formulated for resolution of refractive index of measurand and figure of merit (<italic>FoM</italic>) with respect to similar <italic>MZI</italic> without employing slow-light structure. The effect of attenuation constant of mode traveling in the ring-resonator to the theoretical ultimate sensor resolution limited by available insertion loss budget was also discussed. Taking realistic ring attenuation constant of 1 dB&#x002F;cm, ring radius of 300 &#x03BC;m, and 20 dB insertion loss budget, the theoretical ultimate sensing performance using a single-resonator <italic>TPRR</italic> can reach resolution of 3.63E-10 RIU which is 5 times better than single-resonator <italic>FPRR</italic> and 3-resonator <italic>CROW</italic> while giving <italic>FoM</italic> of 5 and 15 times better compared to circuit employing <italic>FPRR</italic> and 3-resonator <italic>CROW</italic>, respectively.https://ieeexplore.ieee.org/document/10313014/Coupled-resonator optical waveguideevanescent field sensorMach-Zehnder interferometerrefractive index sensorring-resonatorslow-light circuits
spellingShingle Henri P. Uranus
Modeling of Mach-Zehnder Interferometric Sensors Employing Ring-Resonator Circuits for Slow-Light Enhancement
IEEE Photonics Journal
Coupled-resonator optical waveguide
evanescent field sensor
Mach-Zehnder interferometer
refractive index sensor
ring-resonator
slow-light circuits
title Modeling of Mach-Zehnder Interferometric Sensors Employing Ring-Resonator Circuits for Slow-Light Enhancement
title_full Modeling of Mach-Zehnder Interferometric Sensors Employing Ring-Resonator Circuits for Slow-Light Enhancement
title_fullStr Modeling of Mach-Zehnder Interferometric Sensors Employing Ring-Resonator Circuits for Slow-Light Enhancement
title_full_unstemmed Modeling of Mach-Zehnder Interferometric Sensors Employing Ring-Resonator Circuits for Slow-Light Enhancement
title_short Modeling of Mach-Zehnder Interferometric Sensors Employing Ring-Resonator Circuits for Slow-Light Enhancement
title_sort modeling of mach zehnder interferometric sensors employing ring resonator circuits for slow light enhancement
topic Coupled-resonator optical waveguide
evanescent field sensor
Mach-Zehnder interferometer
refractive index sensor
ring-resonator
slow-light circuits
url https://ieeexplore.ieee.org/document/10313014/
work_keys_str_mv AT henripuranus modelingofmachzehnderinterferometricsensorsemployingringresonatorcircuitsforslowlightenhancement