DE202009007789U1 - Broadband light source and microscope - Google Patents
Broadband light source and microscope Download PDFInfo
- Publication number
- DE202009007789U1 DE202009007789U1 DE200920007789 DE202009007789U DE202009007789U1 DE 202009007789 U1 DE202009007789 U1 DE 202009007789U1 DE 200920007789 DE200920007789 DE 200920007789 DE 202009007789 U DE202009007789 U DE 202009007789U DE 202009007789 U1 DE202009007789 U1 DE 202009007789U1
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- Germany
- Prior art keywords
- fiber
- microstructured
- microscope
- light source
- optical element
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- Legal status (The legal status 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 status listed.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/0994—Fibers, light pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/002—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of materials engineered to provide properties not available in nature, e.g. metamaterials
- G02B1/005—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of materials engineered to provide properties not available in nature, e.g. metamaterials made of photonic crystals or photonic band gap materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/0004—Microscopes specially adapted for specific applications
- G02B21/002—Scanning microscopes
- G02B21/0024—Confocal scanning microscopes (CSOMs) or confocal "macroscopes"; Accessories which are not restricted to use with CSOMs, e.g. sample holders
- G02B21/0032—Optical details of illumination, e.g. light-sources, pinholes, beam splitters, slits, fibers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/0004—Microscopes specially adapted for specific applications
- G02B21/002—Scanning microscopes
- G02B21/0024—Confocal scanning microscopes (CSOMs) or confocal "macroscopes"; Accessories which are not restricted to use with CSOMs, e.g. sample holders
- G02B21/0052—Optical details of the image generation
- G02B21/0068—Optical details of the image generation arrangements using polarisation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/421—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical component consisting of a short length of fibre, e.g. fibre stub
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4298—Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02295—Microstructured optical fibre
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nanotechnology (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Microscoopes, Condenser (AREA)
Abstract
Breitbandige Lichtquelle mit einem mikrostrukturierten optischen Element, das das Licht einer Primärquelle spektral verbreitert, dadurch gekennzeichnet, dass dem mikrostrukturierten Element in Lichtrichtung zur Verbesserung des Strahlprofils eine monomodige Faser nachgeordnet ist.Broadband light source with a microstructured optical element which spectrally broadens the light of a primary source, characterized in that the microstructured element in the direction of light to improve the beam profile is followed by a monomode fiber.
Description
Stand der Technik:State of the art:
Die
Patentschrift
Eine
weitere Anordnung zur Generierung eines Breitbandspektrums ist in
der Veröffentlichung von
In der Anordnung wird eine herkömmliche Lichtleitfaser mit einem Faserkern, die zumindest entlang eines Teilstücks eine Verjüngung aufweist verwendet. Lichtleitfasern dieser Art sind als sog. ”tapered fibers” bekannt. [0005]In the arrangement is a conventional optical fiber with a fiber core, at least along a section a taper has been used. Optical fibers of this Art are known as so-called "tapered fibers". [0005]
Insbesondere
in der Mikroskopie, der Endoskopie, der Flusszytometrie, der Chromatographie und
in der Lithographie sind zur Beleuchtung der Objekte universelle
Beleuchtungseinrichtungen mit hoher Leuchtdichte wichtig. In der
Scanmikroskopie wird eine Probe mit einem Lichtstrahl abgerastert. Hierzu
werden oft Laser als Lichtquelle eingesetzt. Aus der Offenlegungsschrift
Es hat sich gezeigt, dass insbesondere mehrfarbige Beleuchtungslichtstrahlen, die aus Lichtquellen stammen, die mikrostrukturiertes optisches Material, insbesondere mikrostrukturierte optische Fasern beinhalten, aufgrund schlechter Strahleigenschaften nur eingeschränkt verwendbar sind. Insbesondere in der Mikroskopie werden bei Verwendung derartiger Beleuchtungslichtstrahlen oft mangelhafte Ergebnisse erzielt.It it has been found that in particular multicolored illumination light beams, which originate from light sources, the microstructured optical material, in particular microstructured optical fibers, due poor beam properties only limited use are. In particular, in microscopy are using such Illumination beams often achieved poor results.
Erfindungsgemäß wurde
nunmehr erkannt, dass mit den Merkmalen des Schutzanspruchs 1 eine überraschende
Verbesserung des Strahlprofils erzielt wird, indem bei einer breitbandigen
Lichtquelle mit einem mikrostrukturierten optischen Element, das
das Licht einer Primärquelle spektral verbreitert,
dem
mikrostrukturierten Element zur Verbesserung des Strahlprofils ein
einmodiger Wellenleiter, vorzugsweise eine monomodige Faser nachgeordnet ist.According to the invention, it has now been recognized that a surprising improvement of the beam profile is achieved with the features of patent claim 1 by providing a broadband light source with a microstructured optical element which spectrally broadens the light of a primary source.
a single-mode waveguide, preferably a monomode fiber is arranged downstream of the microstructured element for improving the beam profile.
Weiterhin
wird ein Mikroskop, insbesondere ein Rastermikroskop oder Laser-Scanning-Mikroskop
beansprucht wobei
eine Lichtquelle mit einem mikrostrukturierten
optischen Element, das das Licht einer Primärquelle spektral
verbreitert, vorgesehen ist und
dass dem mikrostrukturierten
Element zur Verbesserung des Strahlprofils ein einmodiger Wellenleiter, vorzugsweise
eine monomodige Faser nachgeordnet istFurthermore, a microscope, in particular a scanning microscope or laser scanning microscope is claimed
a light source having a microstructured optical element which spectrally broadens the light of a primary source, and
in that a single-mode waveguide, preferably a monomode fiber, is arranged downstream of the microstructured element for improving the beam profile
Bevorzugte Weiterbildungen sind Gegenstand der abhängigen Ansprüche.preferred Further developments are the subject of the dependent claims.
Durch den erfindungsgemäßen Einsatz einer dem mikrostrukturierten Element nachgeordneten monomodigen Faser verbessern sich die Strahleigenschaften, und am Ende der Faser tritt Licht mit für alle Wellenlängen nahezu gleichen Eigenschaften (abhängig von den Eigenschaften der Faser) aus.By the use according to the invention of a microstructured Element downstream monomode fiber improve the beam properties, and at the end of the fiber light comes in at all wavelengths almost the same properties (depending on the properties the fiber).
Von besonderem Vorteil gegenüber dem zitierten Stand der Technik ist der einfachere Aufbau, da keine komplizierte, an die Lichtquelle angepasste Optik benötigt wird.From particular advantage over the cited prior art is the simpler structure, because no complicated, to the light source adapted optics is needed.
Die Singlemode-Faser, die teilweise auch als Monomode-Faser bezeichnet wird, hat meistens einen Kerndurchmesser von typischerweise 3 bis 9 μm, der äußere Durchmesser beträgt ca. 125 μm. Die eigentliche Übertragung der Information erfolgt im Kern der Faser.The Singlemode fiber, sometimes referred to as a single mode fiber usually has a core diameter of typically 3 to 9 μm, the outer diameter is approx. 125 μm. The actual transfer of information takes place at the core of the fiber.
Monomodefasern sind Stufenindexfasern mit einem Kerndurchmesser von einigen Mikrometern (Größenordnung der zu übertragenden Wellenlängen). Sie haben den Vorteil, dass keine Intermodendispersion wie bei den Multimodefasern auftreten kann, da nur eine Schwingungsmode existiert. Die derzeitig verwendeten Monomodefasern bestehen meist aus Glas.Single-mode fibers are step index fibers with a core diameter of a few micrometers (order of magnitude the wavelengths to be transmitted). They have the advantage that no intermodal dispersion as with the multimode fibers can occur because only one vibration mode exists. The currently used single-mode fibers are usually made of glass.
In der Zeichnung ist der Erfindungsgegenstand schematisch dargestellt und wird anhand der Figur nachfolgend beschrieben.In the drawing of the subject invention is shown schematically and will be described below with reference to the figure.
Die mikrostrukturierte Lichtleitfaser MF verbreitert das Licht einer Primärlichtquelle, die vorteilhaft als Pulslaser L ausgeführt ist.The microstructured optical fiber MF widens the light of a Primary light source, which is advantageously designed as a pulse laser L. is.
Zwischen der Primärlichtquelle L und der mikrostrukturierten Lichtleitfaser MF sowie in Beleuchtungsrichtung nach der Faser MF befinden sich eine Fokussieroptiken O1, O2 die das Licht der Primärlichtquelle L auf das Eintrittsende der mikrostrukturierten Lichtleitfaser LF fokussieren (O1) bzw. das aus der Faser MF austretende Licht in eine erfindungsgemäße Singlemodefaser SMF, die vorteilhaft als Glasfaser ausgebildet sein kann, einkoppeln.Between the primary light source L and the microstructured optical fiber MF and in the direction of illumination after the fiber MF are a focusing optics O1, O2 the light of the primary light source L on the entrance end of the microstructured optical fiber LF focus (O1) or emerging from the fiber MF light in a single-mode fiber SMF according to the invention, the can be advantageously formed as a glass fiber, couple.
Die Singlemodefaser ist (nicht dargestellt) in bekannter Weise mit dem Beleuchtungsstrahlengang eines Mikroskops, vorzugsweise eines Laser-Scanning-Mikroskops LSM verbunden.The Singlemode fiber is (not shown) in a known manner with the Illumination beam path of a microscope, preferably a laser scanning microscope LSM connected.
Hier
wird beispielhaft auf
Vorteilhaft ist für die Faser SMF die Verwendung einer einmodigen Breitbandglasfaser mit polarisationserhaltenden Eigenschaften (PM-SM-Faser).Advantageous For the SMF fiber, the use of a single-mode broadband glass fiber with polarization-preserving properties (PM-SM fiber).
Wenn eine Photonic Crystal Fiber (PCF) oder getaperte Faser als mikrostrukturiertes optisches Element MF verwendet wird, kann die SM-Faser SMF (falls die Eigenschaften beider Fasern dies zulassen) auch vorteilhaft direkt an die mikrostrukturierte Faser gespleißt werden.If a photonic crystal fiber (PCF) or taped fiber as a microstructured optical element MF is used, the SM fiber SMF (if the properties of both fibers allow this) also advantageous be spliced directly to the microstructured fiber.
Zwischen dem mikrostrukturiertem Element MF und der Faser SMF könnten weitere Optiken (spektrale Filter, Polarisationsfilter, usw.) eingebracht werden.Between the microstructured element MF and the fiber SMF additional optics (spectral filters, polarizing filters, etc.) are introduced.
Statt einer Glasfaser können auch andere, einmodige Fasern aus anderem Material, z. B. Plastikfasern (plastic optical fibers, POF) verwendet werden, sofern sie einmodig sind.Instead of A glass fiber can also be made of other single-mode fibers other material, eg. B. Plastic fibers (POF) used, if they are single-mode.
Auch jede andere Form von einmodigem Wellenleiter oder ”Energieleiter” wäre denkbar wie beispielsweise Wellenleiter auf SiChips.Also any other form of single-mode waveguide or "energy ladder" would be conceivable, such as waveguides on SiChips.
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - US 6097870 [0001] - US 6097870 [0001]
- - DE 10115488 A1 [0004] - DE 10115488 A1 [0004]
- - DE 10331906 A [0006] - DE 10331906 A [0006]
- - DE 19702753 A1 [0019] - DE 19702753 A1 [0019]
Zitierte Nicht-PatentliteraturCited non-patent literature
- - Birks et al.: ”Supercontinuum generation in tapered fibers”, Opt. Lett. Vol. 25, p.1415 (2000) [0002] - Birks et al .: "Supercontinuum generation in tapered fibers", Opt. Lett. Vol. 25, p.1415 (2000) [0002]
Claims (13)
Priority Applications (1)
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DE200920007789 DE202009007789U1 (en) | 2009-06-03 | 2009-06-03 | Broadband light source and microscope |
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DE200920007789 DE202009007789U1 (en) | 2009-06-03 | 2009-06-03 | Broadband light source and microscope |
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DE202009007789U1 true DE202009007789U1 (en) | 2009-08-20 |
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DE200920007789 Expired - Lifetime DE202009007789U1 (en) | 2009-06-03 | 2009-06-03 | Broadband light source and microscope |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19702753A1 (en) | 1997-01-27 | 1998-07-30 | Zeiss Carl Jena Gmbh | System for coupling radiation, preferably laser beam, in scanning head |
US6097870A (en) | 1999-05-17 | 2000-08-01 | Lucent Technologies Inc. | Article utilizing optical waveguides with anomalous dispersion at vis-nir wavelenghts |
DE10115488A1 (en) | 2000-06-17 | 2001-12-20 | Leica Microsystems | Arrangement for investigating microscopic preparations, has optical component between scanning laser and imaging optical arrangement to spectrally expand laser light during single pass |
DE10331906A1 (en) | 2003-07-15 | 2005-02-17 | Leica Microsystems Heidelberg Gmbh | Light source with a microstructured optical element and microscope with light source |
-
2009
- 2009-06-03 DE DE200920007789 patent/DE202009007789U1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19702753A1 (en) | 1997-01-27 | 1998-07-30 | Zeiss Carl Jena Gmbh | System for coupling radiation, preferably laser beam, in scanning head |
US6097870A (en) | 1999-05-17 | 2000-08-01 | Lucent Technologies Inc. | Article utilizing optical waveguides with anomalous dispersion at vis-nir wavelenghts |
DE10115488A1 (en) | 2000-06-17 | 2001-12-20 | Leica Microsystems | Arrangement for investigating microscopic preparations, has optical component between scanning laser and imaging optical arrangement to spectrally expand laser light during single pass |
DE10331906A1 (en) | 2003-07-15 | 2005-02-17 | Leica Microsystems Heidelberg Gmbh | Light source with a microstructured optical element and microscope with light source |
Non-Patent Citations (1)
Title |
---|
Birks et al.: "Supercontinuum generation in tapered fibers", Opt. Lett. Vol. 25, p.1415 (2000) |
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Legal Events
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R207 | Utility model specification |
Effective date: 20090924 |
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R150 | Term of protection extended to 6 years | ||
R150 | Term of protection extended to 6 years |
Effective date: 20120629 |
|
R081 | Change of applicant/patentee |
Owner name: CARL ZEISS MICROSCOPY GMBH, DE Free format text: FORMER OWNER: CARL ZEISS MICROIMAGING GMBH, 07745 JENA, DE Effective date: 20120823 |
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R151 | Term of protection extended to 8 years | ||
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R071 | Expiry of right |