FR3129209B1 - Spectrometre a deux peignes - Google Patents

Spectrometre a deux peignes Download PDF

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Publication number
FR3129209B1
FR3129209B1 FR2112106A FR2112106A FR3129209B1 FR 3129209 B1 FR3129209 B1 FR 3129209B1 FR 2112106 A FR2112106 A FR 2112106A FR 2112106 A FR2112106 A FR 2112106A FR 3129209 B1 FR3129209 B1 FR 3129209B1
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France
Prior art keywords
waveguide
combs
spectrometer
field distributions
natural modes
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Active
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FR2112106A
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English (en)
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FR3129209A1 (fr
Inventor
Alexandre Parriaux
Kamal Hammani
Guy Millot
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Centre National de la Recherche Scientifique CNRS
Universite de Bourgogne
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Centre National de la Recherche Scientifique CNRS
Universite de Bourgogne
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Priority to FR2112106A priority Critical patent/FR3129209B1/fr
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0218—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using optical fibers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/45—Interferometric spectrometry
    • G01J3/453—Interferometric spectrometry by correlation of the amplitudes

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

Un spectromètre à deux peignes (P1, P1’) comprend un guide d’onde (19) dans lequel sont propagés chacun des deux peignes, selon des modes propres distincts dudit guide d’onde. Une telle utilisation de modes propres distincts permet de réduire un mélange et des interactions entre les deux peignes. De cette façon, des signaux de détection qui sont produits par le spectromètre possèdent un rapport signal-sur-bruit qui est augmenté. Le guide d’onde peut avoir une fonction d’étalement spectral pour les deux peignes. Dans divers modes de réalisation possibles, les modes propres peuvent être différenciés par des directions de polarisation linéaire lorsque le guide d’onde est à maintien de polarisation, par des répartitions spatiales de champ à l’intérieur de sections transversales du guide d’onde lorsque ledit guide d’onde est multimode, ou par des répartitions de champ entre plusieurs cœurs du guide d’onde lorsque ledit guide d’onde est à cœurs multiples.Figure d’abrégé : Figure 1a
FR2112106A 2021-11-16 2021-11-16 Spectrometre a deux peignes Active FR3129209B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2112106A FR3129209B1 (fr) 2021-11-16 2021-11-16 Spectrometre a deux peignes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2112106A FR3129209B1 (fr) 2021-11-16 2021-11-16 Spectrometre a deux peignes
FR2112106 2021-11-16

Publications (2)

Publication Number Publication Date
FR3129209A1 FR3129209A1 (fr) 2023-05-19
FR3129209B1 true FR3129209B1 (fr) 2024-01-12

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ID=80122667

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2112106A Active FR3129209B1 (fr) 2021-11-16 2021-11-16 Spectrometre a deux peignes

Country Status (1)

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FR (1) FR3129209B1 (fr)

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Publication number Publication date
FR3129209A1 (fr) 2023-05-19

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