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Theory analysis of the optical mode localized sensing based on coupled ring resonators

Theory analysis of the optical mode localized sensing based on coupled ring resonators
Theory analysis of the optical mode localized sensing based on coupled ring resonators
Based on Mason's signal flow graph analysis, an analytical model of the optical mode localization based on coupled ring resonators is established. The correctness of the theoretical model is proved by simulation. High sensitivity and common-mode rejection can be achieved by evaluating the modal power ratio from resonant peaks as sensing output. Based on the four-port structure, two output spectrum with mode localization (asymmetric mode splitting) and symmetric mode splitting allows the high-sensitivity sensing and dual-channel calibration to be carried out simultaneously, which can reduce the sensing errors. Monte-Carlo analysis showed that fabrication imperfection changes less than 6% of the performance in 90% cases, thus the construction of practical sensors is possible with appropriate tuning. The optical mode localized sensing has advantages in sensitivity, accuracy, anti-aliasing compared with conventional micro-mechanical mode localized sensor. Various types of high-sensitive sensor can be constructed through coupling parametric perturbation with measurands in different physical domains.
1094-4087
32505-32522
Feng, Yu
631d9d39-ac55-4282-ab98-5b7d0dd2682e
Wang, Shumeng
c62f0be1-7b4f-4231-a94a-93ef9c9f69f1
Mashanovich, Goran
c806e262-af80-4836-b96f-319425060051
Yan, Jize
786dc090-843b-435d-adbe-1d35e8fc5828
Feng, Yu
631d9d39-ac55-4282-ab98-5b7d0dd2682e
Wang, Shumeng
c62f0be1-7b4f-4231-a94a-93ef9c9f69f1
Mashanovich, Goran
c806e262-af80-4836-b96f-319425060051
Yan, Jize
786dc090-843b-435d-adbe-1d35e8fc5828

Feng, Yu, Wang, Shumeng, Mashanovich, Goran and Yan, Jize (2021) Theory analysis of the optical mode localized sensing based on coupled ring resonators. Optics Express, 29 (20), 32505-32522. (doi:10.1364/OE.434400).

Record type: Article

Abstract

Based on Mason's signal flow graph analysis, an analytical model of the optical mode localization based on coupled ring resonators is established. The correctness of the theoretical model is proved by simulation. High sensitivity and common-mode rejection can be achieved by evaluating the modal power ratio from resonant peaks as sensing output. Based on the four-port structure, two output spectrum with mode localization (asymmetric mode splitting) and symmetric mode splitting allows the high-sensitivity sensing and dual-channel calibration to be carried out simultaneously, which can reduce the sensing errors. Monte-Carlo analysis showed that fabrication imperfection changes less than 6% of the performance in 90% cases, thus the construction of practical sensors is possible with appropriate tuning. The optical mode localized sensing has advantages in sensitivity, accuracy, anti-aliasing compared with conventional micro-mechanical mode localized sensor. Various types of high-sensitive sensor can be constructed through coupling parametric perturbation with measurands in different physical domains.

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Accepted/In Press date: 13 August 2021
Published date: 24 September 2021

Identifiers

Local EPrints ID: 451836
URI: http://eprints.soton.ac.uk/id/eprint/451836
ISSN: 1094-4087
PURE UUID: 63d0cf2f-7758-462b-88e4-c496d66b3616
ORCID for Jize Yan: ORCID iD orcid.org/0000-0002-2886-2847

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Date deposited: 29 Oct 2021 16:34
Last modified: 28 Apr 2022 02:13

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Contributors

Author: Yu Feng
Author: Shumeng Wang
Author: Jize Yan ORCID iD

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