WO2006108966A1 - Dispositif de generation d'une lumiere polychromatique a spectre continu par excitation a une longueur d'onde - Google Patents
Dispositif de generation d'une lumiere polychromatique a spectre continu par excitation a une longueur d'onde Download PDFInfo
- Publication number
- WO2006108966A1 WO2006108966A1 PCT/FR2006/000830 FR2006000830W WO2006108966A1 WO 2006108966 A1 WO2006108966 A1 WO 2006108966A1 FR 2006000830 W FR2006000830 W FR 2006000830W WO 2006108966 A1 WO2006108966 A1 WO 2006108966A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fiber
- wavelength
- radiation
- polychromatic light
- harmonic
- Prior art date
Links
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
- G02F1/365—Non-linear optics in an optical waveguide structure
Definitions
- the present invention relates to a device for generating polychromatic light.
- the present invention relates more particularly to the generation of a broad spectrum white light.
- Another known means for obtaining such a light is to pump a microstructured optical fiber with a single-frequency laser, operating in pulsed mode with pulses of the order of one nanosecond, one picosecond, or one femtosecond for pulses. distribution frequencies ranging from kiloHertz to megaHertz. It is known that such pumping induces in the microstructured fiber nonlinear effects that allow the generation of photons at different wavelengths.
- This type of source has been described in JK Ranka et al, Optics Letters, Vol. 25, N 0 I, p. 25-27, 2000, and in JC Knight's paper et al, Optics Letters, vol 26. No. 17, page 1356-1358, 2001.
- the drawbacks of such a source are congestion and cost, which prevent its use in an integrated product.
- the inventors have also proposed a first solution for obtaining a broad-spectrum white source.
- This solution is the subject of the French application 04 02589, dated March 12, 2004, not yet published.
- the inventors describe, as illustrated in FIG. 1, a device comprising an optical pumping module MP, responsible for delivering radiation having at least two different excitation wavelengths ⁇ 1 and ⁇ 2. It also comprises light guiding means GL which, when they are excited by a radiation comprising several wavelengths delivered by the pump module MP, in a non-linear light-matter interaction regime, deliver on their output.
- SGL a polychromatic light corresponding to a continuum.
- such a device thus comprises a pumping means MP generating two wavelengths ⁇ 1 and ⁇ 2 at the output SMP. This radiation then enters the guide means GL by the input EGL, and a white light with a broad spectrum is emitted at the output of the guide GL by the output SGL.
- the present invention therefore intends to further simplify the previously described device, while keeping the results on the emitted light very satisfactory and allow to obtain a spectrum without discontinuity.
- the present invention is of the type described above and is remarkable, in its broadest sense, in that it relates to a device for generating a polychromatic light, comprising optical pumping means, and light guiding means, the optical pumping means being capable of delivering a first radiation of a first wavelength, characterized in that it comprises a selective injection means for injecting said radiation into the means for guidance, said guide means being arranged to generate a harmonic corresponding to said selective injection and to deliver on an output, by nonlinear excitation from said first radiation and said harmonic, a polychromatic light.
- the guide means comprise a light guide, for example of the optical fiber type.
- the guide means in order to generate said harmonic while transmitting the first radiation, are substantially unimodal at said first wavelength, and substantially multimodal at the corresponding wavelength. at said second harmonic.
- the guide means are doped with germanium and / or treated by poling.
- the guide means comprise a microstructured fiber.
- FIG. 1 illustrates a device as described in the previous French application 04 02589, not yet published
- FIG. 2 illustrates a device according to the present invention
- FIG. 3 represents a sectional view of a fiber used according to the invention
- FIG. 4 illustrates an example of supercontinuum realized using the device according to the invention.
- the invention comprises a device D dedicated to the generation of a polychromatic wave.
- This device D firstly comprises an optical pump module MP responsible for delivering radiation.
- this pumping means to deliver radiation having a single wavelength ⁇ 1. It is understood that this means can deliver more than one wavelength, but the technical problem of the emission of a white light is solved according to the invention with only one wavelength.
- This pumping means may for example be in the form of a monochromatic laser source SL. It is understood that any pumping means capable of delivering radiation of at least one wavelength can be used.
- emission of a 1064 nm radiation at the output SMP of the pumping means MP is considered.
- the pumping module used can operate either in a pulse mode, or in a continuous or quasi-continuous mode.
- the device D according to the invention also comprises light guiding means GL responsible for delivering on their output SGL a polychromatic light corresponding to a continuum.
- polychromatic light is meant here a light whose spectrum is substantially continuous and not discretized in wavelength over a wide band.
- the GL guide means used is an optical fiber, or more generally a light guide, whose non-linear properties depend on its structure and its dimensions.
- a so-called microstructured fiber is used.
- This type of optical fiber has an opto-geometric structure, modifiable during its creation that allows a control of the dispersion profile and allows light guidance over the entire transmission band of the material of the fiber.
- the optical fiber GL may be a hole-type optical fiber of the type shown in FIG. 3 in a cross-sectional view.
- This type of optical fiber is described in detail in patent EP 1 148 360.
- This microstructured fiber consists of hollow channels CC parallel to the longitudinal axis of the optical fiber GL, placed next to each other around the CF core. the fiber, in a chosen pitch, so as to define a mesh structure (can be called photonic crystal), and formed in the material constituting the GF sheath surrounding the CF core of the optical fiber GL.
- a photonic crystal may be a forbidden photonic band structure (when the guidance is provided by the transverse mesh), consisting of diffracting elements (here hollow channels CC) defining a mesh and whose physical properties allow control the spread of light.
- These fibers may for example be obtained by stretching in a die, as described in the book by Jean-Michel Lourtioz, "The photonic crystals", p. 324, Hermès Editions, 2003.
- the selected fiber is either completely unimodal or unimodal for the pump wavelength, and multimodal and in particular bimodal for the region. corresponding to high order harmonics, for example in the visible.
- the signal delivered by the exciter source MP is injected into the light guiding means GL, for example in the form of a microstructured optical fiber.
- a particular excitation called “selective injection” makes it possible to obtain the excitation of a single higher order transverse mode (for example the so-called "LPII” mode) other than the fundamental mode (called "LPOI”) in the region of the visible.
- This selective injection is for example carried out using a convergent lens L as shown in FIG. 2.
- the transverse displacement of the lens and a particular orientation of the beam injected into the fiber thus makes it possible to excite a fundamental transverse mode (TEMOO). or single high order (LPII or LP21).
- TEMOO fundamental transverse mode
- LPII single high order
- the microstructured fiber is made to have a high second harmonic generation rate for example through the air-silica interfaces and impurities trapped in the silica.
- An optical, electrical or thermal poling procedure of this fiber makes it possible to significantly increase the second harmonic generation rate.
- This nonlinear frequency doubling effect is directly used to generate the supercontinuum.
- this spontaneous effect is increased by an optical, thermal or electrical poling effect making it possible to induce a strong local field in the fiber.
- This means makes it possible to further improve the results thanks to a better generation of second harmonic.
- hole-type fibers are used in which the interfaces between the silica and the sheath can be a spontaneous source of second harmonic generation.
- the supercontinuum obtained by using the device according to the invention has all the frequency components of the visible range as well as in the near infrared, and this, in a very uniform manner. in power.
- this wide continuous spectrum can be generated over wavelengths ranging from 300 nm to 1.8 ⁇ m for substantially uniform power levels.
- the laser source is, for example, of the YAG type and can be unimodal or multimodal, nanosecond, picosecond, microsecond or continuous.
- the fiber used to make the spectrum of Figure 4 is about 4 meters.
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)
- Lasers (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK06743701.2T DK1869524T3 (en) | 2005-04-15 | 2006-04-14 | Device for generating a polychromatic light over a continuous spectrum by excitation at a wavelength |
US11/918,355 US7800817B2 (en) | 2005-04-15 | 2006-04-14 | Device for production of a polychromatic light over a continuous spectrum by excitation at one wavelength |
EP06743701.2A EP1869524B1 (fr) | 2005-04-15 | 2006-04-14 | Dispositif de generation d'une lumiere polychromatique a spectre continu par excitation a une longueur d'onde |
JP2008505930A JP4951617B2 (ja) | 2005-04-15 | 2006-04-14 | 単波長励起による連続スペクトル多色光生成装置 |
CA2604509A CA2604509C (fr) | 2005-04-15 | 2006-04-14 | Dispositif de generation d'une lumiere polychromatique a spectre continu par excitation a une longueur d'onde |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0503807 | 2005-04-15 | ||
FR0503807A FR2884623B1 (fr) | 2005-04-15 | 2005-04-15 | Dispositif de generation d'une lumiere polychromatique a spectre continu par excitation a une longueur d'onde |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006108966A1 true WO2006108966A1 (fr) | 2006-10-19 |
Family
ID=34955106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2006/000830 WO2006108966A1 (fr) | 2005-04-15 | 2006-04-14 | Dispositif de generation d'une lumiere polychromatique a spectre continu par excitation a une longueur d'onde |
Country Status (7)
Country | Link |
---|---|
US (1) | US7800817B2 (fr) |
EP (1) | EP1869524B1 (fr) |
JP (1) | JP4951617B2 (fr) |
CA (1) | CA2604509C (fr) |
DK (1) | DK1869524T3 (fr) |
FR (1) | FR2884623B1 (fr) |
WO (1) | WO2006108966A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2951878A1 (fr) * | 2009-10-22 | 2011-04-29 | Centre Nat Rech Scient | Systeme de generation d'une lumiere polychromatique en regime continu par fibre optique microstructuree dopee |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2947107B1 (fr) | 2009-06-19 | 2011-08-26 | Centre Nat Rech Scient | Systeme d'emission d'une lumiere polychromatique a sous-cavites couplees |
FR2960655A1 (fr) | 2010-05-25 | 2011-12-02 | Cnrs Ct Nat De Rech Scient | Dispositif et procede d'obtention d'une lumiere polychromatique stabilisee sur une plage de longueurs d'onde determinee |
US9798587B2 (en) | 2011-05-13 | 2017-10-24 | International Business Machines Corporation | Workload partitioning procedure for null message-based PDES |
FR3050289B1 (fr) * | 2016-04-13 | 2018-04-06 | Centre National De La Recherche Scientifique - Cnrs - | Dispositif de generation d'un faisceau de photons de longueurs d'onde definissant un supercontinuum sensiblement continu |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR402589A (fr) | 1909-04-30 | 1909-10-12 | Laurent Pierre Guedon | Procédé d'utilisation ou de récupération de la chaleur engendrée dans les compresseurs d'air |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1970755A3 (fr) * | 1997-06-18 | 2014-08-27 | Nippon Telegraph and Telephone Corporation | Source d'impulsion blanche et applications |
US6393178B2 (en) | 2000-03-04 | 2002-05-21 | Lucent Technologies Inc. | Microstructure optical fibers for dispersion management in optical communication systems |
GB0010950D0 (en) * | 2000-05-05 | 2000-06-28 | Univ Bath | A nonlinear optical device |
DE10221365A1 (de) * | 2002-05-08 | 2003-11-27 | Jenoptik Laser Optik Sys Gmbh | Optische Anordnung zur Erzeugung eines Breitbandspektrums |
US7403689B2 (en) * | 2003-11-19 | 2008-07-22 | Corning Incorporated | Active photonic band-gap optical fiber |
-
2005
- 2005-04-15 FR FR0503807A patent/FR2884623B1/fr active Active
-
2006
- 2006-04-14 CA CA2604509A patent/CA2604509C/fr active Active
- 2006-04-14 EP EP06743701.2A patent/EP1869524B1/fr active Active
- 2006-04-14 JP JP2008505930A patent/JP4951617B2/ja active Active
- 2006-04-14 US US11/918,355 patent/US7800817B2/en active Active
- 2006-04-14 DK DK06743701.2T patent/DK1869524T3/en active
- 2006-04-14 WO PCT/FR2006/000830 patent/WO2006108966A1/fr active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR402589A (fr) | 1909-04-30 | 1909-10-12 | Laurent Pierre Guedon | Procédé d'utilisation ou de récupération de la chaleur engendrée dans les compresseurs d'air |
Non-Patent Citations (4)
Title |
---|
CHAMPERT P-A ET AL: "WHITE-LIGHT SUPERCONTINUUM GENERATION IN NORMALLY DISPERSIVE OPTICAL FIBER USING ORIGINAL MULTI-WAVELENGTH PUMPING SYSTEM", OPTICS EXPRESS, OPTICAL SOCIETY OF AMERICA, WASHINGTON, DC,, US, vol. 12, no. 19, 20 September 2004 (2004-09-20), pages 4366 - 4371, XP002327132, ISSN: 1094-4087 * |
OPTICS LETTERS, vol. 26, no. 17, 2001, pages 1356 - 1358 |
SCHREIBER T ET AL: "High average power supercontinuum generation in photonic crystal fibers", OPTICS COMMUNICATIONS, NORTH-HOLLAND PUBLISHING CO. AMSTERDAM, NL, vol. 228, no. 1-3, 1 December 2003 (2003-12-01), pages 71 - 78, XP004472893, ISSN: 0030-4018 * |
T. SCHREIBER ET AL., OPTICS COMMUNICATIONS, vol. 228, 2003, pages 71 - 78 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2951878A1 (fr) * | 2009-10-22 | 2011-04-29 | Centre Nat Rech Scient | Systeme de generation d'une lumiere polychromatique en regime continu par fibre optique microstructuree dopee |
WO2011048329A3 (fr) * | 2009-10-22 | 2011-07-21 | Centre National De La Recherche Scientifique - Cnrs | Systeme de generation d'une lumiere polychromatique en regime continu par fibre optique microstructuree dopee. |
US8643940B2 (en) | 2009-10-22 | 2014-02-04 | Centre National de la Recherche Scientifique—CNRS | System for continuously generating polychromatic light by means of doped microstructured optical fibre |
Also Published As
Publication number | Publication date |
---|---|
FR2884623B1 (fr) | 2008-02-08 |
DK1869524T3 (en) | 2016-10-24 |
JP2008536185A (ja) | 2008-09-04 |
US7800817B2 (en) | 2010-09-21 |
US20090213614A1 (en) | 2009-08-27 |
CA2604509A1 (fr) | 2006-10-19 |
CA2604509C (fr) | 2014-09-09 |
EP1869524B1 (fr) | 2016-07-06 |
FR2884623A1 (fr) | 2006-10-20 |
JP4951617B2 (ja) | 2012-06-13 |
EP1869524A1 (fr) | 2007-12-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2630705B1 (fr) | Methode et dispositif d'emission laser pour l'analyse spectroscopique d'un echantillon | |
EP3241259B1 (fr) | Système et procédé de génération d'impulsions lumineuses ultrabrèves à forte densité spectrale de puissance et accordables en longueur d'onde | |
Qian et al. | Femtosecond mid-IR optical vortex laser based on optical parametric chirped pulse amplification | |
EP1869524B1 (fr) | Dispositif de generation d'une lumiere polychromatique a spectre continu par excitation a une longueur d'onde | |
US20180113372A1 (en) | Single pass laser amplifier with pulsed pumping | |
WO2011048329A2 (fr) | Systeme de generation d'une lumiere polychromatique en regime continu par fibre optique microstructuree dopee. | |
Chen et al. | Generation of 5 fs, 0.7 mJ pulses at 1 kHz through cascade filamentation | |
EP3443411B1 (fr) | Dispositif de génération d'un faisceau de photons de longueurs d'onde définissant un supercontinuum sensiblement continu | |
EP3405835B1 (fr) | Dispositif de génération d'un faisceau de photons polychromatique et spatialement autoadapté | |
WO1988006811A1 (fr) | Generateur laser a modes verrouilles en phase | |
Vodchits et al. | Stimulated Raman amplification of ultrashort seed pulses in compressed methane | |
Akimov et al. | Spectral superbroadening of subnanojoule Cr: forsterite femtosecond laser pulses in a tapered fiber | |
WO2017125693A1 (fr) | Dispositif de génération d'un faisceau de photons polychromatique et d'énergie sensiblement constante | |
Rothhardt et al. | Compact fiber amplifier pumped OPCPA system delivering Gigawatt peak power 35 fs pulses | |
Quintero-Mata et al. | Study of a broad-spectrum source in the visible range by concatenating different thin-core fiber | |
EP1989590B1 (fr) | Procede de generation d'une source large bande spectrale par accord de phase incluant des modes de fuite | |
EP3999906A1 (fr) | Système de génération d'impulsion lumineuse ultra-courte de forte énergie avec module de mise en forme spectrale | |
EP2443705B1 (fr) | Système d'émission d'une lumière polychromatique a sous-cavités couplées | |
FR3145450A1 (fr) | Dispositif de génération d’impulsions laser étirées à profil modulé | |
Deguil et al. | A novel diode-pumped tunable system for multi-photon microscopy | |
Limpert et al. | Fiber laser pumped ultra-fast parametric amplifiers | |
Andersen et al. | Supercontinuum generation with femtosecond dual pumping | |
Paschotta et al. | Femtosecond Pulse Compression of a Supercontinuum Generated in a Microstructure Fiber |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2008505930 Country of ref document: JP Ref document number: 2604509 Country of ref document: CA |
|
REEP | Request for entry into the european phase |
Ref document number: 2006743701 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006743701 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
NENP | Non-entry into the national phase |
Ref country code: RU |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: RU |
|
WWP | Wipo information: published in national office |
Ref document number: 2006743701 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11918355 Country of ref document: US |