Demonstration of a flexible electro-optic polymer modulator with a low half-wave voltage for ECG signals acquisition

Li, Hongqiang; Lin, Zhilin; Wang, Yingjie; An, Zhixuan; Zhang, Shanshan; Zhang, Zanyun; Tang, Chunxiao; Li, Enbang; Prades, Joan Daniel

doi:10.1016/j.optlastec.2022.108253

Cited by 6 publications

(2 citation statements)

References 24 publications

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“…Recent works from Li et al [85] [86] [87] have proposed a flexible polymer-based EO MZM to convert human elec-tro¬cardiogram (ECG) signals into optical signals, with the aim of improving the fidelity of wearable medical monitoring sensors. In [85], an MZM was realized on a poly¬dimethyl-siloxane (PDMS) substrate, covered with the crosslinked polymer Disperse Red 1 (DR1) / SU-8. Although the EO coefficient for DR1 / SU8 was only 18.3 pm/V, the mod¬ulator was able to recover ECG signals with amplitudes in the range (1…5) mV.…”

Section: B Application In Communications and Sensingmentioning

confidence: 99%

High-Performance Modulators Employing Organic Electro-Optic Materials on the Silicon Platform

Freude,

Kotz,

Kholeif

et al. 2024

IEEE J. Select. Topics Quantum Electron.

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Silicon photonic integrated circuits comprising electro-optic modulators are key to a broad spectrum of applications. However, while the silicon photonics platform takes advantage of the well-established complementary metal-oxide-semiconductor (CMOS) processing technology for fabricating silicon-on-insulator (SOI) waveguides with high reproducibility, crystalline silicon lacks a second-order nonlinear susceptibility, which limits the functionality of the entire integration platform. The plasma dispersion effect provides an alternative means to change the refractive index by injection or depletion of carriers, but this approach has some disadvantages with respect to speed, efficiency, and footprint. Complementing silicon with Pockels-type organic electrooptic materials (silicon-organic hybrid, SOH) can overcome these limitations. In this review, we describe state-of-the-art organic electro-optic materials, address promising strategies to resolve stability concerns, discuss fabrication technologies, and we elaborate on the design of SOH Mach-Zehnder modulators (MZM). Our discussion on performance and applications of SOH MZM starts with the definition of metrics by which various modulator realizations can be compared. Beyond the standard use of SOH MZM, we draw attention to unconventional applications like optical readout of cryoelectronic circuits and other emerging areas in metrology and sensing which are so far not in the primary focus of the community.

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Section: B Application In Communications and Sensingmentioning

confidence: 99%

High-Performance Modulators Employing Organic Electro-Optic Materials on the Silicon Platform

Freude,

Kotz,

Kholeif

et al. 2024

IEEE J. Select. Topics Quantum Electron.

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“…The development of algorithms for disease prediction, prevention, and intervention can benefit from wearable technology. Li, et al [4] utilized a flexible electro-optic polymer modulator for improving an ECG signal acquisition. Yao, et al [5] effective coating strategy based electron conjunction for enhancing the stability and conductance.…”

Section: Introductionmentioning

confidence: 99%

Automatic Atrial Fibrillation Detection Using Modified Moth Flame Optimization Algorithm

2023

IJIES

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The absence of P waves through electrocardiogram (ECG) tracing causes atrial fibrillation (AF) affecting around 1% of the global population. In recent years, wearable and portable devices have made mobile healthcare much closer to reality. The main purpose of this article is to develop an automatic AF detection system based on short single lead ECG signals. Also, AF is one kind of arrhythmia that change the rhythms in the heart and have the potential to alter the characteristics of morphology in ECG tracings. For feature extraction, heart rate variability (HRV) and frequency analysis are adopted. The novel contribution of this work is to deploy a modified Moth Flame Optimization algorithm for detecting AF in a short ECG recording. The obtained results were validated with the available public data set comprised of short ECG recordings by genetic algorithm and modified moth flame optimisation algorithm. For N versus A classification, accuracy varies from 94.2% to 97% under noise levels ranging from 0 to 30 dB. For N versus A versus O, maximum accuracy of 84.3% is obtained. The obtained experimental results suggest that HRV is efficient and robust for AF detection for relatively short ECG recording.

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Fabrication and characterization of electro-optic polymer/silicon hybrid MZI for interrogating small signals from an ECG

Wang

Gao

et al. 2023

Optics Communications

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Demonstration of a flexible electro-optic polymer modulator with a low half-wave voltage for ECG signals acquisition

Cited by 6 publications

References 24 publications

High-Performance Modulators Employing Organic Electro-Optic Materials on the Silicon Platform

High-Performance Modulators Employing Organic Electro-Optic Materials on the Silicon Platform

Automatic Atrial Fibrillation Detection Using Modified Moth Flame Optimization Algorithm

Fabrication and characterization of electro-optic polymer/silicon hybrid MZI for interrogating small signals from an ECG

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