WO2013015706A1 - Procédé de montage d'éléments à fibre optique de dispositifs laser fonctionnant dans la gamme de puissance d'un kilowatt et module à fibre optique pour sa mise en oeuvre - Google Patents

Procédé de montage d'éléments à fibre optique de dispositifs laser fonctionnant dans la gamme de puissance d'un kilowatt et module à fibre optique pour sa mise en oeuvre Download PDF

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Publication number
WO2013015706A1
WO2013015706A1 PCT/RU2011/000567 RU2011000567W WO2013015706A1 WO 2013015706 A1 WO2013015706 A1 WO 2013015706A1 RU 2011000567 W RU2011000567 W RU 2011000567W WO 2013015706 A1 WO2013015706 A1 WO 2013015706A1
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WO
WIPO (PCT)
Prior art keywords
fiber
base
elements
optical
optic
Prior art date
Application number
PCT/RU2011/000567
Other languages
English (en)
Russian (ru)
Inventor
Виктор Михайлович ИЛЬЯШЕНКО
Игорь Эдуардович САМАРЦЕВ
Original Assignee
Общество С Ограниченной Ответственностью "Научно-Техническое Объединение "Ирэ-Полюс"
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 Общество С Ограниченной Ответственностью "Научно-Техническое Объединение "Ирэ-Полюс" filed Critical Общество С Ограниченной Ответственностью "Научно-Техническое Объединение "Ирэ-Полюс"
Priority to PCT/RU2011/000567 priority Critical patent/WO2013015706A1/fr
Publication of WO2013015706A1 publication Critical patent/WO2013015706A1/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
    • H01S3/02—Constructional details
    • H01S3/04—Arrangements for thermal management
    • H01S3/042—Arrangements for thermal management for solid state lasers
    • 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
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06704—Housings; Packages
    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4457—Bobbins; Reels
    • G02B6/4458—Coiled, e.g. extensible helix

Definitions

  • the invention relates to laser technology, and in particular to a technology for the production of high-power fiber lasers in the kilowatt range.
  • Fiber lasers were a symbol of the advent of a new century for laser technology. In the manufacture of high-power fiber lasers and amplifiers of the kilowatt range, a significant problem is the removal of heat from the active fiber and its layout in a cooled module with water or air cooling.
  • a microchannel device for cooling a kilowatt fiber-optic laser in which internal and external coolers are used in order to cool the laser optical fibers in the form of metal structures between which a fiber-optic laser is mounted. Heat removal is carried out through the mutual connection of the external and internal refrigerator with metal jumpers.
  • the disadvantage of this design is the excessive complexity of installation, the inability to automate, and the likelihood of pinching the optical fiber with metal structures of refrigerators.
  • SUBSTITUTE SHEET (RULE 26) fiber sheaths on the sharp edges of the recesses, as well as the occurrence of mechanical stresses in the fiber due to different thermal expansion coefficients of the metal environment (gel groove with the fiber) and the fiber material.
  • a new method is proposed for laying active optical fiber to output high-power laser radiation in the kilowatt range and a device realizing it, devoid of the above disadvantages.
  • the aim of the present invention is to increase the reliability and manufacturability of the manufacture of fiber-optic devices of the kilowatt range - amplifiers and lasers. This is achieved with the method of laying the active laser fiber with fiber optic elements mounted before or after laying the active fiber on a flat rounded (close to round to minimize fiber bending) base, providing sufficient thermal dissipation.
  • Figure 1 shows the view (1) of the active fiber (2) in an annular spiral stacking with a pair of Bragg gratings (3,4) and two combiners (5,6), which combine a number of supply optical pump fibers (7,8), with a pair of couplers (9.10), with fiber input (1 1) and output (12).
  • An active fiber differs from a conventional optical fiber in that it contains rare-earth and / or transition metal impurities providing the laser properties of the fiber. This is achieved in its production.
  • the optical active fiber on a flat surface of a highly heat-conducting, for example, metallic, base (Figs. 2-4) using the natural elasticity of the fiber when it is laid in a ring.
  • the plane of the base (13) is wetted with an adhesive layer (22), for example, a viscous adhesive silicone gel that can hold the elements on a flat surface of the base.
  • an adhesive layer for example, a viscous adhesive silicone gel that can hold the elements on a flat surface of the base.
  • the active fiber (2) is automatically fed from the spool and laid on the base in a flat spiral (2) turn to turn. You can start laying from the outer turns of a large rounded radius R at the side surface (21 ) a rounded base casing, moving towards the center of rotation (OO). Or vice versa - first lay the inner turns. Due to the natural elasticity of the fiber during
  • the present invention provides:
  • a smooth base (13) made of highly heat-conducting material in the form of a plane (Fig. 2) or in the form of a concave cup-shaped plane (Fig. 3), or in the form of a flat open rounded box (Fig. 4),
  • an active fiber laid in a spiral an optical circuit of discrete fiber-optic elements (3-6, 9, 10, Fig. 1) is welded and then they are laid on the periphery of the free space inside the spiral on the surface base on the adhesive sublayer (22, Fig. 2-4),
  • FIG. 2-4 - laying of active fiber (2) and discrete fiber optic elements (24), FIG. 2-4 are carried out on a base (13) rotating in a horizontal plane or on a fixed base (13) during circular motion of stacked fiber-optic elements (2-12), FIG. one.
  • optical fiber module kilowatt power range containing
  • SUBSTITUTE SHEET (RULE 26) an enclosure (13), inside which an active fiber (2) and discrete fiber-optic elements (24) are laid on an adhesive sublayer on a smooth surface of the base around the periphery,
  • the housing cover (23) can serve as the base of the housing (13), and the base as a cover,
  • the cover (23) is removable and does not touch the optical elements
  • the smooth base of the housing (13) is made of heat-conducting material flat ( Figure 2) or in the form of a concave bowl-shaped plane (Fig.Z), or in the form of a flat open rounded box (Fig. 4),
  • optical active fiber (2) doped with rare earth or transition metals, or a combination thereof
  • the active fiber is laid in a spiral at the periphery of the base of the housing (13) on the adhesive sublayer (22),
  • the free ends of the optical fibers are brought out through openings or slots in the base of the housing or cover.
  • FIG. 1 Mounting scheme for optical elements of high-power laser devices (planar view).
  • Figure 2 Scheme of the option of laying fiber optic elements on the plane of the base of the case (side view).
  • Figure 2 Scheme of the option of laying fiber-optic elements on a bowl-shaped base of the case (side view).
  • Figure 2 Diagram of a variant of laying fiber-optic elements on the base of a rounded flat case - a box (side view).
  • the invention may be practiced within existing fiber technologies. Laying in a spiral of active fiber on the surface of a flat round body pre-coated with adhesive gel was carried out in a semi-automatic mode. To do this, the active fiber from the spool was fed to the rotating base of the body and laid round to round, in a spiral of maximum diameter. After laying, discrete optical elements were welded to the free ends, the connecting fibers of which were also located on the periphery with a maximum radius of curvature to minimize bending radiation power losses.
  • the module case was made of metal with a removable cover without fastening, since the cover was fixed in the future when installing the module with an external clip.
  • the present invention can be used in the manufacture of high-power fiber-optic lasers and amplifiers of the kilowatt range, which will ensure the manufacturability of the assembly, high reliability and durability of the proposed optical module, and economic feasibility of use.

Abstract

Pour assurer une gamme de puissance d'un kilowatt d'un rayonnement transmis via des éléments à fibre optique et dissiper la chaleur, l'invention porte sur un procédé de montage d'éléments à fibres optiques et un module optique destiné aux dispositifs laser de grande puissance que l'on met en oeuvre en posant une fibre active sur une base arrondie recouverte d'une couche collante, en une spirale sur la périphérie d'une base. Le degré élevé de technicité du montage augmente la fiabilité du dispositif.
PCT/RU2011/000567 2011-07-27 2011-07-27 Procédé de montage d'éléments à fibre optique de dispositifs laser fonctionnant dans la gamme de puissance d'un kilowatt et module à fibre optique pour sa mise en oeuvre WO2013015706A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/RU2011/000567 WO2013015706A1 (fr) 2011-07-27 2011-07-27 Procédé de montage d'éléments à fibre optique de dispositifs laser fonctionnant dans la gamme de puissance d'un kilowatt et module à fibre optique pour sa mise en oeuvre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2011/000567 WO2013015706A1 (fr) 2011-07-27 2011-07-27 Procédé de montage d'éléments à fibre optique de dispositifs laser fonctionnant dans la gamme de puissance d'un kilowatt et module à fibre optique pour sa mise en oeuvre

Publications (1)

Publication Number Publication Date
WO2013015706A1 true WO2013015706A1 (fr) 2013-01-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2011/000567 WO2013015706A1 (fr) 2011-07-27 2011-07-27 Procédé de montage d'éléments à fibre optique de dispositifs laser fonctionnant dans la gamme de puissance d'un kilowatt et module à fibre optique pour sa mise en oeuvre

Country Status (1)

Country Link
WO (1) WO2013015706A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2168191C1 (ru) * 2000-08-22 2001-05-27 Ооо "Нпф Дилаз" Способ юстировки оптического волокна, волоконно-оптический модуль и способ его изготовления
RU2201024C2 (ru) * 2001-01-16 2003-03-20 Федеральное государственное унитарное предприятие Научно-исследовательский институт "Полюс" Оптический передающий модуль
CN101867143A (zh) * 2010-06-22 2010-10-20 中国人民解放军国防科学技术大学 一种用于高功率光纤激光器或放大器的整体冷却装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2168191C1 (ru) * 2000-08-22 2001-05-27 Ооо "Нпф Дилаз" Способ юстировки оптического волокна, волоконно-оптический модуль и способ его изготовления
RU2201024C2 (ru) * 2001-01-16 2003-03-20 Федеральное государственное унитарное предприятие Научно-исследовательский институт "Полюс" Оптический передающий модуль
CN101867143A (zh) * 2010-06-22 2010-10-20 中国人民解放军国防科学技术大学 一种用于高功率光纤激光器或放大器的整体冷却装置

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