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Interferometer with frequency combs and synchronisation scheme

A frequency comb and interferometer technology, applied in the field of interferometers, can solve problems such as constraints that reduce the stability of frequency combs

Inactive Publication Date: 2013-08-28
CENT NAT DE LA RECHERCHE SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, the constraints on frequency comb stability are reduced

Method used

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  • Interferometer with frequency combs and synchronisation scheme
  • Interferometer with frequency combs and synchronisation scheme
  • Interferometer with frequency combs and synchronisation scheme

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Embodiment Construction

[0053] Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which like reference numerals refer to like elements throughout. Consider illustrative examples of frequency-comb Fourier transform spectroscopy and all associated instrumental analysis methodologies (hyperspectral imaging, microscopy, vibrational circular dichroism, attenuated total reflection, Zeeman modulation, velocity modulation, optional detection techniques , time-resolved spectroscopy, etc.) to best understand the interferometers with synchronization techniques presented in this article, but it should be noted that interferometers with synchronization techniques can also be used for applications other than those described in this article. For example, the interferometer with synchronization technology described in this paper can be applied to optical coherence tomography (OCT: Optical Coherence Tomography), interferometric length measurement,...

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Abstract

An embodiment relates to a Fourier transform spectrometer comprising: a coherent light source; an interferometer adapted to separate the coherent light source into two or more parts in order to generate through frequency or phase-induced effects, interferences between the two or more parts; detection means adapted to detect the interferences, wherein the coherent light source comprises a frequency comb generator having a frequency repetition rate, and the detection means are adapted to detect the beating of pairs of frequencies of the frequency comb separated by the frequency repetition rate or a multiple of the frequency repetition rate.

Description

[0001] References to related applications [0002] This application claims priority to US Provisional Application No. 61 / 083620, filed July 25, 2008, which is hereby incorporated by reference into this disclosure in its entirety. technical field [0003] The present invention relates to the field of interferometers. The invention relates to an interferometer and a method for measuring interference in such an interferometer. Contents of the invention [0004] The present invention relates more particularly to an interferometer comprising: [0005] 1) a first frequency comb, [0006] 2) a second frequency comb adapted to interact with said first frequency comb so as to generate interference, [0007] 3) Means for isolating a beating signal between a subset of the frequency components of the first frequency comb and a subset of the frequency components of the second frequency comb. Such a subset of frequency components is preferably but not necessarily a single spectral lin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/453
CPCG01J3/453
Inventor 盖伊·盖拉切维里西奥多·W·亨施纳塔莉·佩克
Owner CENT NAT DE LA RECHERCHE SCI
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