WO2005012983A1 - Dispositif de generation de lumiere spectrale variable - Google Patents

Dispositif de generation de lumiere spectrale variable Download PDF

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Publication number
WO2005012983A1
WO2005012983A1 PCT/JP2004/011167 JP2004011167W WO2005012983A1 WO 2005012983 A1 WO2005012983 A1 WO 2005012983A1 JP 2004011167 W JP2004011167 W JP 2004011167W WO 2005012983 A1 WO2005012983 A1 WO 2005012983A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
wavelength
unit
output
modulation
Prior art date
Application number
PCT/JP2004/011167
Other languages
English (en)
Japanese (ja)
Inventor
Masatoshi Fujimoto
Yutaka Tsuchiya
Tsuneyuki Urakami
Shinichiro Aoshima
Original Assignee
Hamamatsu Photonics K.K.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hamamatsu Photonics K.K. filed Critical Hamamatsu Photonics K.K.
Publication of WO2005012983A1 publication Critical patent/WO2005012983A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; 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
    • G02F1/35—Non-linear optics
    • G02F1/37—Non-linear optics for second-harmonic generation

Definitions

  • the present invention relates to a variable spectrum light generator in which the shape of the spectrum of output light is variable.
  • FIG. 1 is a block diagram showing a schematic configuration of the variable spectrum light generating device 1 according to the first embodiment.
  • the variable spectrum light generator 1 shown in FIG. 1 is a block diagram showing a schematic configuration of the variable spectrum light generating device 1 according to the first embodiment.
  • the variable spectrum light generator 1 shown in FIG. 1 is a block diagram showing a schematic configuration of the variable spectrum light generating device 1 according to the first embodiment.
  • SH i is expressed by the following relational expression.
  • V is the light frequency
  • E (V) and E (V) of the output light C and the modulated light B are expressed as a function of the light frequency V.
  • variable spectrum light generator can be suitably used as a light source in, for example, optical coherence tomography (OCT).
  • OCT optical coherence tomography
  • the OCT irradiates a multi-scattering object (eg, an eyeball) such as a living body with a low-coherent light having a wide spectrum width and highly sensitively reflects back-scattering light generated inside the multi-scattering object.
  • This is a method of measuring the three-dimensional tomographic image of the multiple scattering object by detecting it (for example, the document “Satoshi Sato, et al., Basics of Optical Coherence Tomography”, Optics, Vol. 32, No. 4, p. 268) 1 p. 274, 2003 ”).
  • the depth component that contributes to the OCT interference signal changes.
  • the spectrum of the output light C is adjusted by adjusting the spectrum of the output light C so that the reflection from the interface does not contribute to the interference signal. The measurement of the object can be performed effectively.
  • variable spectrum light generation device of the present invention can be used as a variable spectrum light generation device capable of increasing the degree of freedom in changing the output light spectrum shape.

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

Selon l'invention, une onde lumineuse de base (A) présentant une relation de phase constante pour une bande prédéterminée est extraite d'une section de source lumineuse (11) et injectée dans une section de modulation lumineuse (12). Dans cette section de modulation lumineuse (12), des paramètres relatifs aux composantes de longueur d'onde respectives sont modulés pour obtenir une lumière modulée (B). Cette lumière modulée (B) extraite de la section de modulation lumineuse (12) est injectée dans une section de conversion de longueur d'onde (13). Une lumière (C) obtenue par conversion de longueur d'onde est extraite de la section de conversion de longueur d'onde (13). Ainsi, il est possible de produire un dispositif de génération de lumière spectrale variable offrant un degré de liberté élevé pour faire varier le spectre de lumière de sortie.
PCT/JP2004/011167 2003-08-04 2004-08-04 Dispositif de generation de lumiere spectrale variable WO2005012983A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003-286119 2003-08-04
JP2003286119A JP2005055652A (ja) 2003-08-04 2003-08-04 可変スペクトル光発生装置

Publications (1)

Publication Number Publication Date
WO2005012983A1 true WO2005012983A1 (fr) 2005-02-10

Family

ID=34113932

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2004/011167 WO2005012983A1 (fr) 2003-08-04 2004-08-04 Dispositif de generation de lumiere spectrale variable

Country Status (2)

Country Link
JP (1) JP2005055652A (fr)
WO (1) WO2005012983A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006251360A (ja) * 2005-03-10 2006-09-21 Sumitomo Electric Ind Ltd 波長変換方法および波長変換器
US20100097614A1 (en) * 2007-01-29 2010-04-22 Optical Comb, Inc. Wavelength scanning light source and optical coherence tomography device
JP6501451B2 (ja) * 2014-03-31 2019-04-17 キヤノン株式会社 光源装置およびそれを用いた情報取得装置
US10756505B2 (en) * 2017-09-21 2020-08-25 Qioptiq Photonics Gmbh & Co. Kg Tunable light source with broadband output

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10223959A (ja) * 1997-02-06 1998-08-21 Hamamatsu Photonics Kk 光反応装置
JP2002273583A (ja) * 2001-03-19 2002-09-25 Inst Of Physical & Chemical Res 透明媒質加工装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10223959A (ja) * 1997-02-06 1998-08-21 Hamamatsu Photonics Kk 光反応装置
JP2002273583A (ja) * 2001-03-19 2002-09-25 Inst Of Physical & Chemical Res 透明媒質加工装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BARTELS R. ET AL.: "Attosecond time-scle feedback control of coherent X-ray generation", CHEMICAL PHYSICS, vol. 267, no. 1/3, 2001, pages 277 - 289, XP002904506 *
YELIN D. ET AL.: "Adaptive fetmosecond pulse compression", OPTICAL LETTERS, vol. 22, no. 23, 1997, pages 1793 - 1795, XP000735865 *

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Publication number Publication date
JP2005055652A (ja) 2005-03-03

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