Fiber ring laser based on SMF–TCF–SMF structure for strain and refractive index sensing

Yu, Fanglin; Xu, Bingjie; Zhang, Yixin; Wang, Dongning

doi:10.1117/1.oe.56.12.126105

Cited by 7 publications

(4 citation statements)

References 21 publications

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“…The ring laser lasing wavelength consists of a high SNR of 42 dB, and a narrow 3 dB bandwidth of 0.016 nm; which ensures high measurement accuracy. As shown in Figure 2 , the laser lasing wavelength (1553.16 nm) does not fall under the resonant peak or maximum gain region of the SMS transmission spectrum, which may be due to some bending of the SMS interferometer [ 7 , 19 ]. To ensure stable laser operation and achieve high measurement SNR, the lasing wavelength should fall within the maximum gain of the SMS attenuation spectrum.…”

Section: Experimental Setup and Results Discussionmentioning

confidence: 99%

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Pipeline Monitoring Using Highly Sensitive Vibration Sensor Based on Fiber Ring Cavity Laser

Lalam

Lü

Venketeswaran

et al. 2021

Sensors

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A vibration fiber sensor based on a fiber ring cavity laser and an interferometer based single-mode-multimode-single-mode (SMS) fiber structure is proposed and experimentally demonstrated. The SMS fiber sensor is positioned within the laser cavity, where the ring laser lasing wavelength can be swept to an optimized wavelength using a simple fiber loop design. To obtain a better signal-to-noise ratio, the ring laser lasing wavelength is tuned to the maximum gain region biasing point of the SMS transmission spectrum. A wide range of vibration frequencies from 10 Hz to 400 kHz are experimentally demonstrated. In addition, the proposed highly sensitive vibration sensor system was deployed in a field-test scenario for pipeline acoustic emission monitoring. An SMS fiber sensor is mounted on an 18” diameter pipeline, and vibrations were induced at different locations using a piezoelectric transducer. The proposed method was shown to be capable of real-time pipeline vibration monitoring.

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Section: Experimental Setup and Results Discussionmentioning

confidence: 99%

“…Moreover, the multimode interference fiber structure acts as both the sensing element, and the filter in the ring laser system, simultaneously. In these systems, the sensing performance can be further enhanced by taking advantage of the narrow 3-dB bandwidth (<0.2 nm) of the ring laser output spectrum, and high SNR, [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Pipeline Monitoring Using Highly Sensitive Vibration Sensor Based on Fiber Ring Cavity Laser

Lalam

Lü

Venketeswaran

et al. 2021

Sensors

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show abstract

“…This facilitates a stable interference spectrum at the output. 63 3.1.6. Tapering the SMF/Microfiber-Based MZI.…”

Section: Optical Fiber Interferometrymentioning

confidence: 99%

“…At the second splicing point the higher-order modes again recombine with the core mode. This facilitates a stable interference spectrum at the output …”

Section: Optical Fiber Interferometrymentioning

confidence: 99%

Label-Free Biochemical Sensing Using Processed Optical Fiber Interferometry: A Review

Jha,

Gorai,

Shrivastav

et al. 2024

ACS Omega

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Over the last 20 years, optical fiber-based devices have been exploited extensively in the field of biochemical sensing, with applications in many specific areas such as the food processing industry, environmental monitoring, health diagnosis, bioengineering, disease diagnosis, and the drug industry due to their compact, label-free, and highly sensitive detection. The selective and accurate detection of biochemicals is an essential part of biosensing devices, which is to be done through effective functionalization of highly specific recognition agents, such as enzymes, DNA, receptors, etc., over the transducing surface. Among many optical fiber-based sensing technologies, optical fiber interferometry-based biosensors are one of the broadly used methods with the advantages of biocompatibility, compact size, high sensitivity, high-resolution sensing, lower detection limits, operating wavelength tunability, etc. This Review provides a comprehensive review of the fundamentals as well as the current advances in developing optical fiber interferometry-based biochemical sensors. In the beginning, a generic biosensor and its several components are introduced, followed by the fundamentals and state-of-art technology behind developing a variety of interferometry-based fiber optic sensors. These include the Mach−Zehnder interferometer, the Michelson interferometer, the Fabry−Perot interferometer, the Sagnac interferometer, and biolayer interferometry (BLI). Further, several technical reports are comprehensively reviewed and compared in a tabulated form for better comparison along with their advantages and disadvantages. Further, the limitations and possible solutions for these sensors are discussed to transform these in-lab devices into commercial industry applications. At the end, in conclusion, comments on the prospects of field development toward the commercialization of sensor technology are also provided. The Review targets a broad range of audiences including beginners and also motivates the experts helping to solve the real issues for developing an industry-oriented sensing device.

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A novel fiber in-line Michelson interferometer based on end face packaging for temperature and refractive index measurement

Wang

Liu

et al. 2019

Optik

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Fiber ring laser based on SMF–TCF–SMF structure for strain and refractive index sensing

Cited by 7 publications

References 21 publications

Pipeline Monitoring Using Highly Sensitive Vibration Sensor Based on Fiber Ring Cavity Laser

Pipeline Monitoring Using Highly Sensitive Vibration Sensor Based on Fiber Ring Cavity Laser

Label-Free Biochemical Sensing Using Processed Optical Fiber Interferometry: A Review

A novel fiber in-line Michelson interferometer based on end face packaging for temperature and refractive index measurement

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