Sensing characteristics of a Sagnac interferometer based on ethanol-filled photonic crystal fiber with two ultra-large holes for temperature measurement
Sign Up to like & getrecommendations! Published in 2019 at "Optik"
DOI: 10.1016/j.ijleo.2019.163061
Abstract: Abstract We propose a Sagnac interferometer (SI) based on ethanol-filled photonic crystal fiber (PCF) with two ultra-large holes for temperature measurement. The phase birefringence of the fully-filled PCF varies significantly with the temperature which is… read more here.
Keywords: large holes; temperature measurement; sagnac interferometer; ethanol ... See more keywords
Design of a remote and integrated Sagnac interferometer that can generate narrowband guided wave through the use of laser and effective optics to detect defects occurred in plates
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2019.105923
Abstract: Abstract To inspect the integrity of specimens that are moving or no space available to mount sensors on their surfaces, laser generated guided wave (GW) becomes the only feasible option. However, conventional GW generated by… read more here.
Keywords: narrowband; integrated sagnac; optics; sagnac interferometer ... See more keywords
A Sensing Interrogation System for Sagnac Interferometer With Polarization Maintaining Fiber Utilizing Microwave Photonic Filtering Technique
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2019.2946399
Abstract: In this paper, a sensing interrogation scheme for Sagnac interferometer (SI) with polarization maintaining fiber (PMF) by using microwave photonic filtering technique has been theoretically analyzed and experimentally demonstrated. In our experiment, the SI acts… read more here.
Keywords: interrogation; microwave photonic; frequency; interferometer polarization ... See more keywords
High Accuracy Measurement of Salinity and Temperature Based on Tilted Grating Concatenated Sagnac Interferometer and ResNet Network
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2024.3484590
Abstract: The measurement of salinity and temperature is vital for ocean observation. However, due to the cross-sensitivity phenomenon of fiber sensors, traditional fiber-based demodulation algorithms are difficult to measure the dual-parameter accurately and simultaneously. In this… read more here.
Keywords: temperature; salinity temperature; salinity; sagnac interferometer ... See more keywords
Temperature sensor based on an erbium-doped fiber Sagnac interferometer.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.448377
Abstract: The development of a highly sensitive all-fiber temperature sensor based on a Sagnac interferometer configuration is demonstrated here. We use 10 m of an erbium-doped fiber (EDF) as a passive sensing element inside the Sagnac… read more here.
Keywords: sensor based; sagnac interferometer; temperature; doped fiber ... See more keywords
Phase-shifting determination and pattern recognition using a modified Sagnac interferometer with multiple reflections.
Sign Up to like & getrecommendations! Published in 2024 at "Applied optics"
DOI: 10.1364/ao.511674
Abstract: This work has implemented a diverse modification of the Sagnac interferometer to accommodate various measurement requirements, including phase shifting, pattern recognition, and a morphological analysis. These modifications were introduced to validate the adaptability and versatility… read more here.
Keywords: interferometer; phase shifting; sagnac interferometer; pattern recognition ... See more keywords
Divide and structure: generating and interswitching orthogonal eigenstates of complementary petal beams using a π-shifted Sagnac interferometer.
Sign Up to like & getrecommendations! Published in 2024 at "Applied optics"
DOI: 10.1364/ao.519089
Abstract: One of the many facets of structured light are Ferris wheel/petal beams that can be generated by the addition/superposition of two beams with opposite vorticity/orbital angular momentum (OAM). We demonstrate a simple scheme employing a… read more here.
Keywords: petal beams; shifted sagnac; orthogonal eigenstates; sagnac interferometer ... See more keywords
High-sensitivity DNA biosensor based on microfiber Sagnac interferometer.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.013305
Abstract: Nucleic acid detection with label-free biosensors circumvents the need for costly fluorophore functionalization steps associated with conventional assays by utilizing optical fiber transducers. In spite of their technological prowess, however, these biosensors' sensitivity is limited… read more here.
Keywords: microfiber sagnac; high sensitivity; dna; sagnac interferometer ... See more keywords
Orbital angular momentum-enhanced measurement of rotation vibration using a Sagnac interferometer.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.001997
Abstract: We construct an experimental measurement system for rotation vibration signal detection using the orbital angular momentum (OAM) of light in a Sagnac interferometer. Inputting light beams with different OAM, we demonstrate that the measured signal… read more here.
Keywords: orbital angular; sagnac interferometer; rotation; rotation vibration ... See more keywords
Discrete frequency-bin entanglement generation via cascaded second-order nonlinear processes in Sagnac interferometer.
Sign Up to like & getrecommendations! Published in 2023 at "Optics letters"
DOI: 10.1364/ol.489656
Abstract: Discrete frequency-bin entanglement is an essential resource for applications in quantum information processing. In this Letter, we propose and demonstrate a scheme to generate discrete frequency-bin entanglement with a single piece of periodically poled lithium… read more here.
Keywords: sagnac interferometer; discrete frequency; frequency; frequency bin ... See more keywords
Dual Sagnac Interferometer Distributed Optical Fiber Localization Method Based on Hilbert–Huang Transform
Sign Up to like & getrecommendations! Published in 2023 at "Energies"
DOI: 10.3390/en16083494
Abstract: In order to solve the problem that the dual Mach Zehnder (M-Z) interferometer system is easily affected by external environmental noise, a data signal-processing scheme based on Hilbert–Huang transform (HHT) is proposed to achieve high-precision… read more here.
Keywords: sagnac interferometer; interferometer; transform; dual sagnac ... See more keywords