4.6 Article

Vernier effect-based optical fiber sensor for dynamic sensing using a coarsely resolved spectrometer

Related references

Note: Only part of the references are listed.
Article Engineering, Electrical & Electronic

Self-Vernier Effect-Assisted Optical Fiber Sensor Based on Microwave Photonics and Its Machine Learning Analysis

Chen Zhu et al.

Summary: The optical Vernier effect is a hot topic in recent years as it enhances the sensitivity of optical fiber interferometric sensors. However,this effect requires precise integration and complicated processing for spectrum extraction. In this article, a new concept of the self-Vernier effect is proposed for sensitivity improvement of optical fiber sensors and a new demodulation approach using machine learning analysis is demonstrated. The self-Vernier effect is obtained by overlapping microwave interferograms and the machine learning analysis reduces the need for a wide frequency observation window and numerous sampling points.

JOURNAL OF LIGHTWAVE TECHNOLOGY (2023)

Article Optics

Sensitivity enhanced fiber optic temperature sensor based on optical carrier microwave photonic interferometry with harmonic Vernier effect

Sijie Chen et al.

Summary: A sensitivity enhanced fiber optic temperature sensor based on optical carrier microwave interferometry (OCMI) with harmonic Vernier effect is proposed and experimentally demonstrated. The sensor consists of two cascaded Mach-Zehnder interferometers (MZIs) with different optical length differences. By applying the harmonic Vernier effect, a sensitivity amplification factor of up to 18.61 and a sensitivity of 580.45kHz/degrees C have been achieved. This technique allows for easy adjustment of the amplification factor and overcomes the limitation of periodic frequency response.

OPTICS AND LASER TECHNOLOGY (2023)

Article Optics

Machine learning for a Vernier-effect-based optical fiber sensor

Chen Zhu et al.

Summary: The optical Vernier effect is an effective tool to improve the sensitivity of fiber interferometer-based sensors. This letter proposes and demonstrates the use of machine learning for the demodulation of optical Vernier-effect-based fiber sensors, enabling direct and reliable readout of the measurand from the optical spectrum.

OPTICS LETTERS (2023)

Article Optics

Distributed fiber optic sensing with enhanced sensitivity based on microwave-photonic Vernier effect

Chen Zhu et al.

Summary: This Letter demonstrates a distributed optical fiber sensor based on microwave photonics with improved sensitivity enabled by the Vernier effect. Distributed sensing is achieved by interrogating a Fabry-Perot interferometer (FPI) array formed by cascaded reflectors along an optical fiber using an optical carrier-based microwave interferometry (OCMI) system. By tracking the spectral shift of the envelope signals, the measurement sensitivities of the sensing FPIs can be significantly improved.

OPTICS LETTERS (2022)

Review Chemistry, Analytical

Advanced Fiber Sensors Based on the Vernier Effect

Yunhao Chen et al.

Summary: This paper introduces the principle and applications of the optical Vernier effect, classifies and discusses different configurations for producing the Vernier effect, and presents the outlook for Vernier effect fiber sensors.

SENSORS (2022)

Article Optics

High-sensitivity optical fiber sensing based on a computational and distributed Vernier effect

Chen Zhu et al.

Summary: This article introduces a novel concept of computational microwave photonics and distributed Vernier effect for enhancing sensitivity in a distributed optical fiber sensor. By utilizing an optical carrier microwave interferometry system, the measurement sensitivity of each sensing interferometer can be amplified individually through the superposition of interferograms.

OPTICS EXPRESS (2022)

Article Optics

Fabry-Perot interferometers for highly-sensitive multi-point relative humidity sensing based on Vernier effect and digital signal processing

Yu Wang et al.

Summary: In this paper, a highly sensitive relative humidity sensor based on Fabry-Perot interferometers is proposed and demonstrated experimentally. The sensor combines a hollow core Bragg fiber with single mode fiber and is functionalized with chitosan and ultraviolet optical adhesive to enhance the humidity sensitivity. The sensor shows a high sensitivity and multiplexing capability, making it a promising candidate for RH monitoring.

OPTICS EXPRESS (2022)

Article Optics

Detection limit analysis of optical fiber sensors based on interferometers with the Vernier-effect

Yulong LI et al.

Summary: This article discusses the influence of the Vernier-effect on the detection limit of optical fiber sensors. Experimental and theoretical analysis show that although the Vernier-effect amplifies the spectrum shift sensitivity, it also magnifies the smallest detectable wavelength shift, thus not improving the actual performance of the sensor.

OPTICS EXPRESS (2022)

Review Optics

Intelligent metaphotonics empowered by machine learning

Sergey Krasikov et al.

Summary: In recent years, the intersection of photonics, machine learning, and artificial intelligence has seen a significant boost in research. A new methodology has been developed to describe various photonic systems, enabling intelligent design of photonic devices. Artificial intelligence and machine learning have rapidly penetrated the fundamental physics of light and provide effective tools for studying the field of metaphotonics. This article provides an overview of the evaluation of metaphotonics induced by artificial intelligence and summarizes the concepts of machine learning with specific examples in metasystems and metasurfaces.

OPTO-ELECTRONIC ADVANCES (2022)

Article Automation & Control Systems

Recent Advances in Machine Learning for Fiber Optic Sensor Applications

Abhishek Venketeswaran et al.

Summary: Fiber optic sensors (FOS) have gained significant attention in various industries for monitoring applications, with the potential to become the backbone of intelligent sensing platforms. However, challenges including cross-sensitivity, large data volume, and slow data processing speed need to be addressed. Recent advances in machine learning (ML) and artificial intelligence (AI) offer solutions to overcome these challenges.

ADVANCED INTELLIGENT SYSTEMS (2022)

Article Engineering, Multidisciplinary

Fiber-optic sensors based on Vernier effect

Yingxuan Liu et al.

Summary: Fiber-optic sensors have rapidly developed due to their excellent sensing performances, but in special occasions with high requirements for sensitivity and resolution, traditional sensing mechanisms may fall short. This review discusses the Vernier effect as a sensitization method in fiber-optic sensors, covering working principles, mechanisms, structures, research progress, applications, and future development directions.

MEASUREMENT (2021)

Review Optics

Machine learning and applications in ultrafast photonics

Goery Genty et al.

Summary: The field of smart photonics has seen rapid growth and development in recent years, with machine-learning algorithms being used to enhance optical systems and add new functionalities. Machine learning in ultrafast photonics has shown potential in accelerating technology, particularly in areas such as pulsed laser design, operation, and ultrafast propagation dynamics. However, challenges and future research areas in this field still need to be addressed.

NATURE PHOTONICS (2021)

Article Optics

Hybrid intrinsic optical fiber sensor fabricated by femtosecond laser with enhanced sensitivity by Vernier effect

Tiago Paixao et al.

Summary: The hybrid sensor introduced in the passage combines a Fiber Bragg grating and two Fabry-Perot interferometers fabricated by a femtosecond laser system. The Vernier effect is used to magnify the sensitivity of one interferometer, overcoming cross-sensitivity issues. The simple fabrication method and customizable sensitivity of the hybrid sensor make it suitable for use in various industrial and research fields where high resolution and production reliability are essential.

OPTICS AND LASER TECHNOLOGY (2021)

Article Optics

Ultrasensitive temperature sensor with Vernier-effect improved fiber Michelson interferometer

Yuanfang Zhao et al.

Summary: A novel fiber Michelson interferometer for temperature sensing based on parallel dual polarization maintaining fiber Sagnac interferometers is proposed and experimentally demonstrated. The temperature sensitivity and resolution are greatly enhanced using the Vernier effect, showing significant improvement compared to single polarization maintaining fiber Sagnac interferometers.

OPTICS EXPRESS (2021)

Article Engineering, Electrical & Electronic

Vernier Effect-Based Optical Fiber Sensor for Humidity and Temperature Monitoring

Ricardo Ferreira et al.

Summary: This study presents a simple and cost-effective sensing scheme for humidity and temperature sensing, utilizing the optical Vernier effect with two different fiber optic Fabry-Perot interferometers. By using an insensitive reference FFPI and a sensitive FFPI, the complexity associated with traditional isolation schemes was mitigated, resulting in high sensitivities.

IEEE PHOTONICS TECHNOLOGY LETTERS (2021)

Article Engineering, Electrical & Electronic

Performance Upgradation of Microwave Photonic Filtering Interrogation Using Gaussian Process Regression

Chengming Luo et al.

Summary: The Gaussian process regression (GPR) is introduced to upgrade microwave photonic filtering interrogation, providing improved performance in terms of demodulation speed and accuracy by learning the relationship between the frequency response of the filter and the applied strain. The well-trained GPR model remains valid for frequency responses with large notch depth fluctuation, increasing tolerance to device parameter deviation and ambient changes. This work demonstrates the potential of machine learning algorithms for improving microwave photonics filtering interrogation.

JOURNAL OF LIGHTWAVE TECHNOLOGY (2021)

Article Optics

Optical fiber Fabry-Perot interferometer coupled to a 3-D integrated waveguide for 3-D position sensing

Chen Zhu et al.

Summary: In this letter, a new strategy for optical fiber sensing, particularly for EFPI sensing, is proposed and demonstrated, allowing for three-dimensional measurements based on a hybrid and compact EFPI device. Experimental results show that 3-D positioning with sub-micron resolution can be achieved by simultaneously measuring the reflection and transmission of the device.

OPTICS LETTERS (2021)

Article Optics

Sensing in the presence of strong noise by deep learning of dynamic multimode fiber interference

Linh Nguyen et al.

Summary: A new approach to optical fiber sensing using deep neural network models allows for specific measurement in the presence of strong noise without the need for additional fiber processing steps. This technique is highly generalizable, capable of identifying any measurand of interest and enabling sensing in noisy environments.

PHOTONICS RESEARCH (2021)

Article Optics

2D tactile sensor based on multimode interference and deep learning

Zhenming Ding et al.

Summary: A 2D tactile sensor using a single winding fiber embedded in soft, elastic silicone substrate is shown to achieve high accuracy in recognizing spatial position and force sensing with a simple structure and powerful interrogation method. The technique captures images formed by laser light injected into a multimode fiber path and utilizes a convolutional neural network for training and testing.

OPTICS AND LASER TECHNOLOGY (2021)

Article Optics

Sensitivity-enhanced microwave-photonic optical fiber interferometry based on the Vernier effect

Chen Zhu et al.

Summary: This paper introduces optical fiber interferometers based on OCMI for sensing applications, enhancing measurement sensitivity with the Vernier effect. By cascading two FPIs, temperature measurements are greatly improved.

OPTICS EXPRESS (2021)

Review Optics

Optical Vernier Effect: Recent Advances and Developments

Andre D. Gomes et al.

Summary: The optical Vernier effect enhances sensitivity and resolution of fiber sensors by generating magnified sensing capabilities in the output spectrum. This effect relies on the overlap between signals of two slightly detuned interferometers, leading to a new generation of highly sensitive sensing devices.

LASER & PHOTONICS REVIEWS (2021)

Article Optics

Simplified highly-sensitive gas pressure sensor based on harmonic Vernier effect

Xuemei Yang et al.

Summary: The gas pressure sensor proposed is based on the harmonic Vernier effect, with a simple fabrication process, high sensitivity, and excellent linearity. By adjusting the length of the silica capillaries, the harmonic of the optical Vernier effect can be observed, serving as a sensitive probe for gas pressure detection.

OPTICS AND LASER TECHNOLOGY (2021)

Article Engineering, Electrical & Electronic

Label Free All-Fiber Static Pressure Sensor Based on Vernier Effect With Temperature Compensation

Chenxu Lu et al.

IEEE SENSORS JOURNAL (2020)

Article Optics

Teaching optics to a machine learning network

Andre-Pierre Blanchard-Dionne et al.

OPTICS LETTERS (2020)

Article Optics

One-dimensional sensor learns to sense three-dimensional space

Chen Zhu et al.

OPTICS EXPRESS (2020)

Article Multidisciplinary Sciences

Giant refractometric sensitivity by combining extreme optical Vernier effect and modal interference

Andre D. Gomes et al.

SCIENTIFIC REPORTS (2020)

Article Engineering, Electrical & Electronic

Machine Learning Assisted Fiber Bragg Grating-Based Temperature Sensing

Martin S. E. Djurhuus et al.

IEEE PHOTONICS TECHNOLOGY LETTERS (2019)

Article Engineering, Electrical & Electronic

Ultra-Sensitive Strain Sensor Based on Femtosecond Laser Inscribed In-Fiber Reflection Mirrors and Vernier Effect

Jun Deng et al.

JOURNAL OF LIGHTWAVE TECHNOLOGY (2019)

Article Engineering, Electrical & Electronic

All-Optical Demodulation Fiber Acoustic Sensor With Real-Time Controllable Sensitivity Based on Optical Vernier Effect

Shuai Wang et al.

IEEE PHOTONICS JOURNAL (2019)

Article Engineering, Electrical & Electronic

Machine Learning for Turning Optical Fiber Specklegram Sensor into a Spatially-Resolved Sensing System. Proof of Concept

Alberto Rodriguez Cuevas et al.

JOURNAL OF LIGHTWAVE TECHNOLOGY (2018)

Article Engineering, Electrical & Electronic

Sensitivity-enhanced fiber strain sensing system based on microwave frequency scanning with the Vernier effect

Yixin Zhang et al.

OPTICAL FIBER TECHNOLOGY (2018)

Article Chemistry, Analytical

Birefringence induced Vernier effect in optical fiber modal interferometers for enhanced sensing

Kaiwei Li et al.

SENSORS AND ACTUATORS B-CHEMICAL (2018)

Article Engineering, Electrical & Electronic

High Power Self-Q-Switching in Nd:LuAG Laser

Guangju Zhang et al.

IEEE PHOTONICS JOURNAL (2018)