{"title":"基于soa的fbg应变和温度传感信噪比提高方法","authors":"Mohammad Reza Kalantari, Saeed Olyaee","doi":"10.1007/s10470-025-02478-x","DOIUrl":null,"url":null,"abstract":"<div><p>This paper introduces the first integrated three-stage design including a semiconductor optical amplifier (SOA), an erbium-doped fiber amplifier (EDFA), and a noise suppression loop. This system effectively mitigates amplified spontaneous emission (ASE) noise in fiber Bragg grating (FBG)-based strain and temperature sensing applications. The proposed configuration addresses the persistent challenge of a low signal-to-noise ratio (SNR), which limits the sensitivity and precision of FBG sensors. The system consists of an SOA-based modulator, an EDFA pre-amplifier with feedback control, and a fast photodetector within a noise-suppression module. Previous interrogation methods have achieved SNRs approaching 30 dB. Our design exceeds this threshold, delivering an output SNR improvement of 35.34 dB compared to conventional single-stage architectures. Simulation results validate the effectiveness of the proposed design in enhancing signal quality. They also demonstrate its strong potential for deployment in high-precision sensing applications, including structural health monitoring, aerospace systems, and biomedical diagnostics.</p></div>","PeriodicalId":7827,"journal":{"name":"Analog Integrated Circuits and Signal Processing","volume":"125 1","pages":""},"PeriodicalIF":1.4000,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A novel SOA-Based method for enhancing SNR in FBG-Based strain and temperature sensing\",\"authors\":\"Mohammad Reza Kalantari, Saeed Olyaee\",\"doi\":\"10.1007/s10470-025-02478-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This paper introduces the first integrated three-stage design including a semiconductor optical amplifier (SOA), an erbium-doped fiber amplifier (EDFA), and a noise suppression loop. This system effectively mitigates amplified spontaneous emission (ASE) noise in fiber Bragg grating (FBG)-based strain and temperature sensing applications. The proposed configuration addresses the persistent challenge of a low signal-to-noise ratio (SNR), which limits the sensitivity and precision of FBG sensors. The system consists of an SOA-based modulator, an EDFA pre-amplifier with feedback control, and a fast photodetector within a noise-suppression module. Previous interrogation methods have achieved SNRs approaching 30 dB. Our design exceeds this threshold, delivering an output SNR improvement of 35.34 dB compared to conventional single-stage architectures. Simulation results validate the effectiveness of the proposed design in enhancing signal quality. They also demonstrate its strong potential for deployment in high-precision sensing applications, including structural health monitoring, aerospace systems, and biomedical diagnostics.</p></div>\",\"PeriodicalId\":7827,\"journal\":{\"name\":\"Analog Integrated Circuits and Signal Processing\",\"volume\":\"125 1\",\"pages\":\"\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2025-08-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Analog Integrated Circuits and Signal Processing\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10470-025-02478-x\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"COMPUTER SCIENCE, HARDWARE & ARCHITECTURE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Analog Integrated Circuits and Signal Processing","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10470-025-02478-x","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"COMPUTER SCIENCE, HARDWARE & ARCHITECTURE","Score":null,"Total":0}
A novel SOA-Based method for enhancing SNR in FBG-Based strain and temperature sensing
This paper introduces the first integrated three-stage design including a semiconductor optical amplifier (SOA), an erbium-doped fiber amplifier (EDFA), and a noise suppression loop. This system effectively mitigates amplified spontaneous emission (ASE) noise in fiber Bragg grating (FBG)-based strain and temperature sensing applications. The proposed configuration addresses the persistent challenge of a low signal-to-noise ratio (SNR), which limits the sensitivity and precision of FBG sensors. The system consists of an SOA-based modulator, an EDFA pre-amplifier with feedback control, and a fast photodetector within a noise-suppression module. Previous interrogation methods have achieved SNRs approaching 30 dB. Our design exceeds this threshold, delivering an output SNR improvement of 35.34 dB compared to conventional single-stage architectures. Simulation results validate the effectiveness of the proposed design in enhancing signal quality. They also demonstrate its strong potential for deployment in high-precision sensing applications, including structural health monitoring, aerospace systems, and biomedical diagnostics.
期刊介绍：
Analog Integrated Circuits and Signal Processing is an archival peer reviewed journal dedicated to the design and application of analog, radio frequency (RF), and mixed signal integrated circuits (ICs) as well as signal processing circuits and systems. It features both new research results and tutorial views and reflects the large volume of cutting-edge research activity in the worldwide field today.
A partial list of topics includes analog and mixed signal interface circuits and systems; analog and RFIC design; data converters; active-RC, switched-capacitor, and continuous-time integrated filters; mixed analog/digital VLSI systems; wireless radio transceivers; clock and data recovery circuits; and high speed optoelectronic circuits and systems.
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