[go: up one dir, main page]

Egalon et al., 1992 - Google Patents

Efficiency of core light injection from sources in the cladding: bulk distribution

Egalon et al., 1992

View PDF
Document ID
5096916259418244914
Author
Egalon C
Rogowski R
Publication year
Publication venue
Optical Engineering

External Links

Snippet

The behavior of the power efficiency P eff of an optical fiber with a bulk distribution of source in its cladding is analyzed. The expressions derived make use of the exact field solution of a cylindrical fiber, whereas previous work has made use of the weakly guiding approximation …
Continue reading at www.researchgate.net (PDF) (other versions)

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/7703—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides
    • G01N21/774—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides the reagent being on a grating or periodic structure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity
    • G01N21/552—Attenuated total reflection
    • G01N21/553—Attenuated total reflection and using surface plasmons
    • G01N21/554—Attenuated total reflection and using surface plasmons detecting the surface plasmon resonance of nanostructured metals, e.g. localised surface plasmon resonance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle
    • G01N21/431—Dip refractometers, e.g. using optical fibres
    • G01N2021/432—Dip refractometers, e.g. using optical fibres comprising optical fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N2021/7769—Measurement method of reaction-produced change in sensor
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00—Light guides
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G01N21/412—Index profiling of optical fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • 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
    • G02B6/02066—Gratings having a surface relief structure, e.g. repetitive variation in diameter of core or cladding
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light

Similar Documents

Publication Publication Date Title
Gupta et al. Fiber optic evanescent field absorption sensor: effect of launching condition and the geometry of the sensing region
Grazia et al. Evanescent wave absorption spectroscopy by means of bi-tapered multimode optical fibers
Gupta et al. Fibre-optic evanescent field absorption sensor based on a U-shaped probe
US5249251A (en) Optical fiber sensor having an active core
US6385380B1 (en) Hollow optical waveguide for trace analysis in aqueous solutions
US20040118997A1 (en) Tapered fiber optic strain gauge using cavity ring-down spectroscopy
TW200306407A (en) Fiber-optic based cavity ring-down spectroscopy apparatus
JP2010014739A (en) Apparatus for spectroscopic measurement of trace species
Khanikar et al. Reflectance-based no core fiber sensor with enhanced Sensitivity for salinity detection
US5262638A (en) Optical fibers and fluorosensors having improved power efficiency and methods of producing same
Sheeba et al. Fibre optic sensor for the detection of adulterant traces in coconut oil
Rushworth et al. Top notch design for fiber-loop cavity ring-down spectroscopy
Egalon et al. Efficiency of core light injection from sources in the cladding: bulk distribution
Ashkin et al. Outer diameter measurement of low birefringence optical fibers by a new resonant backscatter technique
Remillard et al. Loss mechanisms in optical light pipes
US5343550A (en) Transversely polarized source cladding for an optical fiber
Linslal et al. Eigenvalue equation and core-mode cutoff of weakly guiding tapered fiber as three layer optical waveguide and used as biochemical sensor
Egalon et al. Theoretical model for a thin cylindrical film optical fiber fluorosensor
Gupta et al. A novel probe for an evanescent wave fibre-optic absorption sensor
Egalon et al. Model of a thin-film optical fiber fluorosensor
Bornstein et al. Attenuated total reflection spectroscopy with chalcogenide bitapered fibers
Flores-Bravo et al. Dual-Parameter sensing with a single supermode Interferometer
Egalon et al. Excitation efficiency of an optical fiber core source
US6282338B1 (en) Interfacial propagating mode waveguide
Bryant et al. Changes in the amount of core light injection for fluorescent-clad optical fiber due to variations in the fiber refractive index and core radius: experimental results