WO1998059399A1 - Laser a semi-conducteurs a materiaux multiples - Google Patents

Laser a semi-conducteurs a materiaux multiples Download PDF

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Publication number
WO1998059399A1
WO1998059399A1 PCT/US1998/012133 US9812133W WO9859399A1 WO 1998059399 A1 WO1998059399 A1 WO 1998059399A1 US 9812133 W US9812133 W US 9812133W WO 9859399 A1 WO9859399 A1 WO 9859399A1
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WO
WIPO (PCT)
Prior art keywords
laser
media
rod
shaped
columnar
Prior art date
Application number
PCT/US1998/012133
Other languages
English (en)
Inventor
Warren E. Parkhurst
Valerie G. Polushkin
Original Assignee
Parkhurst Warren E
Polushkin Valerie G
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 Parkhurst Warren E, Polushkin Valerie G filed Critical Parkhurst Warren E
Priority to AU79604/98A priority Critical patent/AU7960498A/en
Publication of WO1998059399A1 publication Critical patent/WO1998059399A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/0602—Crystal lasers or glass lasers
    • H01S3/0612—Non-homogeneous structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/0602—Crystal lasers or glass lasers
    • H01S3/061—Crystal lasers or glass lasers with elliptical or circular cross-section and elongated shape, e.g. rod
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/0602—Crystal lasers or glass lasers
    • H01S3/0615—Shape of end-face
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/0627—Construction or shape of active medium the resonator being monolithic, e.g. microlaser
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/07—Construction or shape of active medium consisting of a plurality of parts, e.g. segments
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/08059—Constructional details of the reflector, e.g. shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/08086—Multiple-wavelength emission
    • H01S3/0809—Two-wavelenghth emission
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/1601—Solid materials characterised by an active (lasing) ion
    • H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
    • H01S3/1608—Solid materials characterised by an active (lasing) ion rare earth erbium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/1601—Solid materials characterised by an active (lasing) ion
    • H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
    • H01S3/1611—Solid materials characterised by an active (lasing) ion rare earth neodymium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/163—Solid materials characterised by a crystal matrix
    • H01S3/164—Solid materials characterised by a crystal matrix garnet
    • H01S3/1643—YAG

Definitions

  • This invention is related to solid state lasers, and in one particular aspect to lasers with two or more active laser media having dissimilar dopants and dissimilar output wavelengths.
  • Solid-state lasers are light amplifying devices designed to produce high intensity monochromatic light.
  • Typical solid-state lasers include a pumping light source, an active material or medium (often called a laser rod, laser crystal, or lasant material), and a set of reflectors.
  • Light from the pumping source produces stimulated emissions from specific atomic impurities (called dopants) in the active material and such emissions are caused to be amplified by resonation between a set of reflectors.
  • the assembly including the active medium and reflectors makes up a laser resonator.
  • the output properties of such a laser may be modified by the use of various host materials and/or combinations thereof (commonly, various types of glasses and crystals) and dopants as the active medium.
  • U.S. Patent 3,615,312 describes a method for combining two active media by a process of coaxial drawing of glassy materials in order to achieve an operatively unitary laser device with combined output properties.
  • a laser is a unitary device which operates as a single laser having a single resonant cavity.
  • U.S. Patent 5,432,811 discloses a technique for creating a resonant cavity within a laser rod by providing the rod with polyhedron shaped ends. The facets of these ends work as reflectors to produce resonant reflections within the rod, thus providing light amplification.
  • the present invention discloses a laser with a resonator having a plurality of segments of laser media joined together into a single laser rod with polyhedral reflective ends.
  • a conventional optical pumping source provides optical stimulus to the resonator.
  • the resonator may be enclosed in a reflective tube and fitted with reflective end caps to enclose the resonator and hold it in place.
  • Conventional cooling apparatus and techniques may be used to cool the resonator and pumping source.
  • Light from the pumping source is directed to and into the resonator material to stimulate photonic emissions from the various dopants. These emissions resonate within the laser rod between the reflective facets of the polyhedral ends. Stimulated emissions from each of the media segments is thereby caused to resonate, producing light amplification and emission from the resonator in a number of wavelengths corresponding to the primary emission wavelengths of each of the dopants in each segment.
  • a first segment of laser medium such as Yttrium- Aluminum-Garnett (YAG) doped with neodymium (Nd:YAG) is joined to a second segment of laser medium doped with erbium (E ⁇ YAG).
  • YAG Yttrium- Aluminum-Garnett
  • Nd:YAG neodymium
  • E ⁇ YAG erbium
  • the laser rod thus formed is ground and polished to produce a bihedral prism at each end.
  • a short portion of the vertex of the bihedral prism is ground and polished to form a flat face orthogonal to the central axis of the rod, producing an output face (e.g. as in U.S. Patent 5,432,811).
  • Stimulated emissions produced in each segment of the rod by the introduction of pumping energy then resonate between the faceted ends and produce harmonic amplification as such emissions pass through the appropriate segment of the rod.
  • the output of such a resonator consists of light at wavelengths corresponding to the primary emission wavelength of Nd:YAG (1064 nanometers) and E ⁇ YAG (2940 nanometers).
  • the relative output energies at the two wavelengths are dependent on the relative efficiencies and volumes (i.e. segment lengths, when the cross sectional areas of the segments are equal) of the two laser media materials used in the rod.
  • Materials used to form the segments may be selected from the variety of known laser media, including, but not limited to, crystals and glasses doped with rare-earth elements.
  • the segments of laser media may be joined using several techniques.
  • the ends of two segments are abutted at a joint and held in place with a ring around the circumference of the joint. This method may reduce the amount of lateral surface area available for pumping, and may reduce the efficiency of the system due to reflective losses produced by an air gap between the segments.
  • an adhesive cement is used (e.g., a high temperature epoxy) between the two segments (in one aspect in conjunction with the technique mentioned above).
  • the adhesive when cured, in certain embodiments has an index of refraction very close (in certain preferred embodiments within 10%) to that of the segments to be joined. Conditions of use should not be such that the thermal stresses produced by circulating energy in the rod cause the adhesive to fail.
  • a third method includes abutting the two ends of the segments and heating the assembly to near the melting point of the two materials so that the segments are sintered together. This process is performed, in certain embodiments, under anaerobic conditions to prevent oxidation, and discoloration, of the materials.
  • the addition of dopant materials is controlled during the crystal growth process. As a boule of crystal material is grown, the type of dopant added to the growth chamber is changed producing a boule with two or more zones with differing chemical characteristics. A laser rod is cut from such a boule so that the rod contains several (two or more) differing segments.
  • a laser device with a laser according to the present invention emits a variety of laser wavelengths.
  • a laser device is useful, inter alia, when the wavelengths are needed to produce different but essentially simultaneous effects in certain target materials.
  • one application of such a laser is in medical surgery where one wavelength is optimal for cutting tissue without excessive heat damage while a second wavelength is optimal for producing coagulation of blood to provide hemostasis.
  • the emission wavelength(s) are selectable by a user.
  • the efficiency of a laser is increased by providing staged amplification. If, for example, a suitable pumping source for a certain laser medium is not available, but a pumping source for a different material which produces an output wavelength capable of efficiently pumping the first medium is easily obtainable. Then a multimedia laser rod according to the present invention of both materials produces emission from one segment that stimulate emission from the other segment, thus producing the desired output.
  • the present invention discloses a solid state and/or multimedia laser with a faceted laser crystal resonator and an output window ground and polished to a curved surface, to either focus or de-focus a laser beam as it emerges from the crystal resonator. This reduces the need for external focusing optics and increases the ruggedness and cost effectiveness of solid state lasers employing crystal resonators.
  • the present invention discloses an active laser element with at least two segments of dissimilar active laser media joined together forming a columnar laser rod having a first end, and a second end spaced apart from the first end, each media having a primary emission wavelength, the first end shaped for internally reflecting light therefrom, the second end shaped for internally reflecting light therefrom, and the two segments of dissimilar active laser media disposed so that optical stimulation thereof produces amplified light from the columnar laser rod in wavelengths corresponding to the primary emission wavelengths of the media; such an active laser element wherein the first end is shaped as a non-emissive prism with at least two sides; such an active laser element wherein the second end has an exit window portion (in one aspect with a curved portion to focus or defocus an output laser beam) for the exit of an output laser beam from the columnar laser rod; such an active laser element wherein the columnar laser rod has a cross sectional area and the exit window portion has a cross sectional area, the cross sectional area of the window being about five percent to
  • the present invention discloses an active laser element with at least two segments of dissimilar active laser media joined together forming a columnar laser rod having a first end, and a second end spaced apart from the first end, each media having a primary emission wavelength, the first end shaped for internally reflecting light therefrom and shaped as a non-emissive prism with at least two sides, the second end having an exit window portion for exit of an output laser beam and shaped for internally reflecting light therefrom and shaped as a non-emissive prism with at least two sides, the two segments of dissimilar active laser media disposed so that optical stimulation thereof produces amplified light from the columnar laser rod in wavelengths corresponding to the primary emission wavelengths of the media, and the columnar laser rod having a cross sectional area and the exit window portion having a cross sectional area, the cross sectional area of the window being about five percent to about seventy-five percent of the cross sectional area of the rod.
  • the present invention discloses an active laser element with at least two segments of dissimilar active laser media joined together forming a columnar laser rod having a first end, and a second end spaced apart from the first end, each media having a primary emission wavelength, the first end shaped for internally reflecting light therefrom, the second end shaped for internally reflecting light therefrom, the two segments of dissimilar active laser media disposed so that optical stimulation thereof produces amplified light from the columnar laser rod in wavelengths corresponding to the primary emission wavelengths of the media, and the second end having an exit window with a curved portion, the exit window for exit of an output laser beam from the columnar laser rod.
  • the present invention discloses a laser resonator with a columnar laser rod having a first end, and a second end spaced apart from the first end, the first end shaped for internally reflecting light therefrom, the first end shaped as a non- emissive prism with at least two sides, the second end shaped for internally reflecting light therefrom and having an exit window portion for the exit of an output laser beam from the columnar laser rod, and the exit window of the second end having a curved surface; such a laser resonator wherein the curved surface focuses the output laser beam; and such a laser resonator wherein the curved surface defocuses the output laser beam.
  • the present invention discloses, in certain embodiments, a laser with a pumping light source, a cooling apparatus, and an active laser element with at least two segments of dissimilar active laser media joined together forming a columnar laser rod having a first end, and a second end spaced apart from the first end, each media having a primary emission wavelength, the first end shaped for internally reflecting light therefrom, the second end shaped for internally reflecting light therefrom, and the two segments of dissimilar active laser media disposed so that optical stimulation thereof produces amplified light from the columnar laser rod in wavelengths corresponding to the primary emission wavelengths of the media.
  • Fig. 1A is a schematic view of a resonator system in accordance with the present invention.
  • Figs. IB and 1C show end views of the system of Fig. 1A.
  • Fig. 2A is a schematic view of a resonator system in accordance with the present invention.
  • Figs. 2B and 2C show end views of the system of Fig. 2 A.
  • Fig. 3 A is a schematic view of a resonator system in accordance with the present invention.
  • Figs. 3B and 3C show end views of the system of Fig. 3A.
  • Fig. 4A is a schematic view of a resonator system in accordance with the present invention.
  • Figs. 4B and 4C show end views of the system of Fig. 4A.
  • Fig. 5 A is a schematic view of a resonator system in accordance with the present invention.
  • Figs. 5B and 5C show end views of the system of Fig. 5A.
  • Fig. 5D is an enlarged view of a portion of a resonator system of Fig. 5 A.
  • Fig. 6 is a photograph of a resonator in accordance with the present invention with segments joined by controlled doping of the crystal.
  • an active laser element 10 has a first segment 12 of laser medium material abutted against a second segment 14 of a different laser medium material, each with a primary emission wavelength.
  • the two pieces form a single column of active laser material with a front end 16 and a rear end 18.
  • Reflecting facets 20 on the rear end 18 are, preferably, ground and polished on each end forming a vertex.
  • the tip of the output face of the end 16 is, preferably, ground and polished to form reflecting facets 22 and an output window 24.
  • Figs. 2A-2C show an active laser element 30 with first and second segments 32 and 34 of different laser active material joined together with a collar ring 9.
  • Rear end 37 and front end 38 are ground and polished to form reflecting dihedral facets, with the vertex of the front end 38 ground and polished to form an output window 35.
  • Figs. 3A - 3C show an active laser element 50 with three segments of different laser active media 51, 52, and 53 joined by adhesive cement at joints 54. Terminal ends of the rod thus formed are ground and polished to create reflecting facets at ends 55 and 56. A vertex of the front end 56 is, preferably, ground and polished to form an output window 57.
  • Figs. 4A - 4C show a laser active element 60 in accordance with the present invention having segments 61 and 62 which are grown as one piece during a crystal growth process by changing the nature and amount of dopant added to the growth medium (e.g., but not limited to, a crystal grown from YAG doped with the addition of trace amounts of erbium for some period and then the dopant is either gradually or abruptly switched to neodymium).
  • a transition zone 64 between regions the segments 61 and 62 may contain different dopants. In one aspect, this region is an abrupt transition from a concentration of the first dopant to a concentration of the second; or, alternatively, the transition zone may have a gradual concentration gradient.
  • Figs. 5 A - 5C show a crystal resonator 100 according to the present invention with polyhedral shaped ends 102, 103 (see also U.S. Patent 5,432,811).
  • An output window portion 104 of the resonator 100 is shown to be curved to form an integrated lens 106 which produces focusing of an output beam from the resonator 100.
  • the end is shaped to defocus the output beam.
  • Fig. 5B shows an enlarged view of the curved output window 104.
  • Fig. 6 shows a laser crystal resonator 120 according to the present invention with a segment 122 joined to segment 124 by controlled doping as described above.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

L'invention concerne un élément à laser actif comprenant au moins deux segments (12, 14) de matériaux laser actifs dissemblables reliés pour former un barreau laser en forme de colonne (10). Chaque matériau laser dissemblable produit une lumière amplifiée à des longueurs d'onde correspondant aux longueurs d'onde d'émission électronique primaire du matériau en question. Le barreau a une première extrémité (16) formée pour la réflexion interne de la lumière, et une seconde extrémité (18) formée pour la réflexion interne de la lumière. Ces formes d'extrémité peuvent comprendre un prisme non émissif ayant au moins deux côtés. Une extrémité peut avoir une fenêtre de sortie (24), qui peut être incurvée pour défocaliser le faisceau de sortie.
PCT/US1998/012133 1997-06-20 1998-06-18 Laser a semi-conducteurs a materiaux multiples WO1998059399A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU79604/98A AU7960498A (en) 1997-06-20 1998-06-18 Multi-media solid state laser

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US87990997A 1997-06-20 1997-06-20
US08/879,909 1997-06-20

Publications (1)

Publication Number Publication Date
WO1998059399A1 true WO1998059399A1 (fr) 1998-12-30

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ID=25375139

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/012133 WO1998059399A1 (fr) 1997-06-20 1998-06-18 Laser a semi-conducteurs a materiaux multiples

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AU (1) AU7960498A (fr)
WO (1) WO1998059399A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000076035A1 (fr) * 1999-06-09 2000-12-14 Commissariat A L'energie Atomique Amplificateur optique
EP1879271A2 (fr) 2006-06-26 2008-01-16 Fujifilm Corporation Dispositif laser et amplificateur optique
WO2009049735A1 (fr) * 2007-10-09 2009-04-23 Fachhochschule Münster Cristal laser
WO2013104404A1 (fr) 2012-01-13 2013-07-18 Neolase Gmbh Amplificateur optique non régénératif
CN112652936A (zh) * 2020-12-21 2021-04-13 中红外激光研究院(江苏)有限公司 一种1μm和2μm波段激光同时输出的激光器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5274650A (en) * 1990-12-28 1993-12-28 Hoya Corporation Solid state laser
US5566196A (en) * 1994-10-27 1996-10-15 Sdl, Inc. Multiple core fiber laser and optical amplifier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5274650A (en) * 1990-12-28 1993-12-28 Hoya Corporation Solid state laser
US5566196A (en) * 1994-10-27 1996-10-15 Sdl, Inc. Multiple core fiber laser and optical amplifier

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000076035A1 (fr) * 1999-06-09 2000-12-14 Commissariat A L'energie Atomique Amplificateur optique
EP1879271A2 (fr) 2006-06-26 2008-01-16 Fujifilm Corporation Dispositif laser et amplificateur optique
EP1879271A3 (fr) * 2006-06-26 2009-08-19 Fujifilm Corporation Dispositif laser et amplificateur optique
US7835416B2 (en) 2006-06-26 2010-11-16 Fujifilm Corporation Laser device and optical amplifier
US7894129B2 (en) 2006-06-26 2011-02-22 Fujifilm Corporation Laser device and optical amplifier
US7894501B2 (en) 2006-06-26 2011-02-22 Fujifilm Corporation Laser device and optical amplifier
WO2009049735A1 (fr) * 2007-10-09 2009-04-23 Fachhochschule Münster Cristal laser
WO2013104404A1 (fr) 2012-01-13 2013-07-18 Neolase Gmbh Amplificateur optique non régénératif
DE102012000510A1 (de) 2012-01-13 2013-07-18 Neolase Gmbh Nichtregenerativer optischer Verstärker
US9590387B2 (en) 2012-01-13 2017-03-07 Neolase Gmbh Non-regenerative optical ultrashortpulse amplifier
CN112652936A (zh) * 2020-12-21 2021-04-13 中红外激光研究院(江苏)有限公司 一种1μm和2μm波段激光同时输出的激光器

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