[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

Li et al., 2024 - Google Patents

A dual-wavelength erbium-doped fiber laser for high resolution strain sensing with compound filter of a Sagnac loop and a long period fiber grating

Li et al., 2024

Document ID
1400429849601802887
Author
Li L
Chen H
Shi R
Li H
Publication year
Publication venue
Optics & Laser Technology

External Links

Snippet

A dual-wavelength erbium-doped fiber laser (EDFL) strain sensing system composed of compound filter of a long period fiber grating (LPFG) and a Sagnac loop is proposed. Polarization maintaining fiber (PMF) in Sagnac loop acts both an interference filter and a …
Continue reading at www.sciencedirect.com (other versions)

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00—Light guides
    • G02B6/02—Optical fibre with cladding with or without a coating
    • G02B6/02057—Optical fibre with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02F—DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
    • G02F1/0128—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on electro-mechanical, magneto-mechanical, elasto-optic effects
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00—Light guides
    • G02B6/10—Light guides of the optical waveguide type
    • G02B6/105—Light guides of the optical waveguide type having optical polarisation effects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress in general
    • G01L1/24—Measuring force or stress in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infra-red, visible light, ultra-violet
    • G01L1/241—Measuring force or stress in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infra-red, visible light, ultra-violet by photoelastic stress analysis
    • G—PHYSICS
    • G02—OPTICS
    • G02F—DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/04—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 monomode

Similar Documents

Publication Publication Date Title
Wang et al. Advances in optical fiber sensors based on multimode interference (MMI): a review
Zhao et al. All-solid multi-core fiber-based multipath Mach–Zehnder interferometer for temperature sensing
Bai et al. Strain sensor based on fiber ring cavity laser with photonic crystal fiber in-line Mach–Zehnder interferometer
Tang et al. High-performance bending vector and strain sensor using a dual-tapered photonic crystal fiber Mach–Zehnder interferometer
Zhang et al. Highly sensitive temperature and strain sensor based on fiber Sagnac interferometer with Vernier effect
Qian et al. Photonic crystal fiber refractive index sensor based on a fiber Bragg grating demodulation
Bai et al. Temperature fiber sensor based on single longitudinal mode fiber laser in 2 μm band with Sagnac interferometer
Li et al. A dual-wavelength erbium-doped fiber laser for high resolution strain sensing with compound filter of a Sagnac loop and a long period fiber grating
Yu et al. Multi-parameter sensor based on the fiber Bragg grating combined with triangular-lattice four-core fiber
Yang et al. FBG sensor interrogation with high temperature insensitivity by using a HiBi-PCF Sagnac loop filter
Zhao et al. Sensitivity enhanced refractive index sensor with in-line fiber Mach-Zehnder interferometer based on double-peanut and Er-doped fiber taper structure
Wei et al. Tunable multimode fiber based filter and its application in cost-effective interrogation of fiber-optic temperature sensors
Li et al. Fiber in-line Mach-Zehnder interferometer for simultaneous measurement of transverse loading and temperature based on multi-core fiber
Ruan Fiber curvature sensor based on concave‐heterotypic cascaded fiber Sagnac interferometer
Shao et al. Seven-core fiber based in-fiber Mach–Zehnder interferometer for temperature-immune curvature sensing
Zhang et al. Multi-function sensor based on rectangular-lattice photonic crystal fiber with high pressure sensitivity
Kim et al. Twist-direction-discriminable torsion sensor using long-period fiber grating inscribed on polarization-maintaining photonic crystal fiber
Kumar et al. Highly sensitive single-fiber MZI configuration for weight sensing
Naeem et al. Sagnac interferometer based on a highly-birefringent two-core PCF: theory, experiment, and sensing characteristics
Qi et al. High resolution measurement of refractive index with resistance to temperature crosstalk through an all fiber MZI-PMF structure
Liu et al. Erbium-doped fiber laser based on intermodal interference between single-mode fiber and suspended core fiber for strain and temperature sensing
Ruan et al. Strain and temperature discrimination measurement sensor using MMF-PMF-THF fiber structure built in Sagnac loop
Zhang et al. Temperature-insensitive displacement sensor based on high-birefringence photonic crystal fiber loop mirror
Xiong et al. Temperature insensitive optical fiber laser bend sensor with a low detection limit
Cai et al. Temperature-insensitive curvature sensor with few-mode-fiber based hybrid structure