CN105720464A - Integral cooling device for rod-shaped optical fiber - Google Patents
Integral cooling device for rod-shaped optical fiber Download PDFInfo
- Publication number
- CN105720464A CN105720464A CN201610263613.3A CN201610263613A CN105720464A CN 105720464 A CN105720464 A CN 105720464A CN 201610263613 A CN201610263613 A CN 201610263613A CN 105720464 A CN105720464 A CN 105720464A
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- Prior art keywords
- optical fiber
- rod
- end cap
- optical fibre
- type optical
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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.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 108
- 238000001816 cooling Methods 0.000 title claims abstract description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000010453 quartz Substances 0.000 claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 239000004677 Nylon Substances 0.000 claims abstract description 5
- 229920001778 nylon Polymers 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims description 24
- 239000000110 cooling liquid Substances 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 6
- 239000004038 photonic crystal Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000005253 cladding Methods 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000013305 flexible fiber Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- H01S3/0407—Liquid cooling, e.g. by water
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
An integral cooling device for a rod-shaped optical fiber is formed by mutually connecting and surrounding a metal heat sink supporting base, an upper cover plate and two side plates into a cube, wherein a V-shaped groove for placing a rod-shaped optical fiber body to be cooled is arranged in the metal heat sink supporting base, a cooling channel is carved below the V-shaped groove, and an inlet/outlet which is connected with the cooling channel is also arranged on the metal heat sink supporting base; a plum blossom-shaped groove for placing the optical fiber quartz end cap is arranged on the side plate; the upper cover plate is provided with a threaded hole for braking, and the nylon cylindrical screw is arranged in the threaded hole for braking and used for adjusting the stress of the optical fiber quartz end cap. The invention effectively reduces the local stress applied to the optical fiber, prevents the optical fiber from being damaged and increases the system stability; the contact area between the optical fiber and the cooling medium is increased, the temperature of the optical fiber can be effectively reduced, and the output stability and the environmental temperature change resistance of the high-power rod-shaped optical fiber laser are improved.
Description
Technical field
The present invention relates to Fiber laser and amplifier field, particularly a kind of optical fiber integral cooling device for freezing in high power rod-type optical fibre laser instrument for optical fiber.
Background technology
Rod-type optical fibre, particularly bar-shaped photonic crystal fiber combines the advantage of solid and optical fiber bi-material, and the application in high-capacity optical fiber laser with amplifier system is increasingly extensive.Bar-shaped photonic crystal fiber surrounding layer size (up to more than 1mm) is much larger than ordinary optic fibre (125 μm), it does not have coating layer, use length (0.3～1.2m) also shorter than ordinary optic fibre (more than 2m), in order to improve its damage threshold, its two ends it is generally required to large-sized quartz end cap (6～8mm) phase welding (SchmidtO, RothhardtJ, EidamT, etal.Single-polarizationultra-large-mode-areaYb-dopedpho toniccrystalfiber [J] .Opticsexpress, 2008, 16 (6): 3918-3923.).Bending very easily causes the fracture of damage and the optical fiber end cap of the breakage of optical fiber surface quartz surrounding layer, air photon crystal structure.In addition, owing to bar-shaped photonic crystal fiber doping content is high, the heat effect produced by pump light effect that is subject to its doped dielectric causes temperature rising (KimYG rapidly in optical fiber, RyuJW, ChaYH, etal.Maintainingthepolarization, temperatureandamplificationcharacteristicsofaytterbium-d opedrod-typephotoniccrystalfiber (PCF) amplifier [J] .2011.), and cause pattern unstability and the efficiency decline (CoscelliE of optical fiber, PoliF, AlkeskjoldTT, etal.Thermaleffectsonthesingle-moderegimeofdistributedmo dalfilteringrodfiber [J] .LightwaveTechnology, Journalof, 2012, 30 (22): 3494-3499.).
Summary of the invention
It is an object of the invention to provide a kind of integral cooling device for rod-type optical fibre so that it is high power steady running can be kept in Fiber laser and amplifier as gain media.Adopt the mode that rod-type optical fibre main body supports respectively with quartz end cap, and scalable puts on the stress on optical fiber end cap, improves the stability of optical fiber structure；The mode being screwed, by each several part set, forms stable overall structure；Contacted by the heat sink of working fluid with internal by optical fiber surface, reduce fiber optic temperature, improve the temperature stability of optical fiber.This device ensure that stability and the environment resistant temperature change capabilities of rod-type optical fibre Output of laser under high power conditions, has simple in construction, refrigeration is obvious, practical, the feature such as uniform of dispelling the heat.
The technical solution of the present invention is as follows:
A kind of integral cooling device for rod-type optical fibre, supported base, upper cover plate and two blocks of side plates by metal heat sink to interconnect around forming a cube, support at described metal heat sink and in base, be provided with mean for the V-groove that rod-type optical fibre main body to be cooled is placed, and be carved with cooling duct below this V-groove, described metal heat sink support base is additionally provided with this cooling duct together with import/export；Described side plate is provided with mean for the blossom type groove that optical fiber quartz end cap is placed；Being provided with braking screwed hole on described upper cover plate, nylon cylinder screw is inserted with screwed hole by braking, for adjusting the stress of optical fiber quartz end cap；Under V-groove, cooling liquid, through import/export, is flowed by cooling duct, takes away the heat accumulation on rod-type optical fibre, reduces the temperature of rod-type optical fibre.
Bar-shaped photonic crystal fiber to be cooled being put into inside and has in the V-groove of heatsink support base of liquid, by contacting heat radiation with heat sink, the cooling liquid of flowing takes away, by the passage in bar-shaped heatsink support base, the heat that optical fiber distributes.The V-groove of upper cover is closely sealed fixing by screw and optical fiber, and upper cover realizes laminating with supporting base also by screw.Optical fiber quartz end cap is placed on the blossom type groove of side plate, and inserts nylon cylinder screw applying stress by braking screwed hole, controls position and the pressure of quartz end cap, keeps the stability of quartz end cap.
Described rod-type optical fibre is for the optical fiber in high-capacity optical fiber laser, amplifier, including photonic crystal fiber, laser crystal optical fiber, laser ceramics optical fiber etc..Its core diameter is more than 30 μm, and outer cladding diameter is more than 0.5mm, and length is between 0.3～1.2m, without coat.
The ingredient of described rod-type optical fibre chiller--metal heat sink is supported the side plate of base, upper cover plate and 2 cooling optical fiber quartz end caps and is fixed by methods such as screws, form integrated device, by fully wrapped around to rod-type optical fibre and end cap thereof in cooling structure, it is ensured that the stability of optical fiber structure.
Described rod-type optical fibre main body adopts separate type clamp structure with optical fiber quartz end cap, support base by metal heat sink and support bar-shaped fiber body and optical fiber quartz end cap respectively with side plate, can the relative position of flexible fiber body and optical fiber quartz end cap, and the stress putting on silica fibre end cap is controlled by setscrew and blossom type groove, its anti-pressure ability is made to strengthen, prevent bending and the damage of optical fiber, improve the stability of quartz end cap.
Described support base, upper cover, side plate can be the materials that the heat conductivity such as copper or aluminum is higher, support big 10～100 μm of the V-groove width ratio optical fiber jacket diameter of base and upper cover, support base length consistent with fiber lengths, side plate length should be longer than quartz end cap length 1～3mm, and upper cover length is for supporting base length and side plate length sum.
Described metal supports chassis interior and passes to the sub-cooled liquid of flowing, it is possible to be water or the liquid of other high heat conduction.By rod-type optical fibre outer surface and metal heat sink support base seated connection touch heat radiation, improve the coefficient of heat conduction, it is possible to effectively reduce fiber optic temperature, improve the temperature stability of optical fiber.
Rod-type optical fibre is positioned in coolable support base and upper cover V-groove by the present invention so that the outer surface of optical fiber contacts with heat sink, improves the coefficient of heat conduction；The free-standing structure of side plate adds the motility of quartz end cap so that it is anti-pressure ability strengthens, it is therefore prevented that the bending of optical fiber and damage.
Adopt the present invention can reach techniques below effect:
1. the present invention adopts the mode that rod-type optical fibre main body supports respectively with quartz end cap, and scalable puts on the stress on optical fiber end cap, improves the stability of optical fiber structure.
2. the present invention adopts the modes such as screw to fix each parts, forms integrated device, by fully wrapped around to rod-type optical fibre and end cap thereof in cooling structure, and simple in construction, and ensure that the stability of optical fiber structure.
3. the present invention is contacted by the heat sink of working fluid with internal by whole optical fiber surface, improves heat conduction efficiency, reduces the temperature of rod-type optical fibre fibre core and covering, and refrigeration is obvious, improves pattern instability threshold value and the delivery efficiency of rod-type optical fibre.
Accompanying drawing explanation
Fig. 1 is the present invention structural representation for rod-type optical fibre integral cooling device.
Fig. 2 is the present invention front view for the embodiment 1 of rod-type optical fibre integral cooling device.
Fig. 3 is the present invention top view for the embodiment 1 of rod-type optical fibre integral cooling device.
Fig. 4 is the present invention left view for the embodiment 1 of rod-type optical fibre integral cooling device.
Detailed description of the invention
Below in conjunction with drawings and embodiments, the invention will be further described, but should not limit the scope of the invention with this.
Fig. 1 is the present invention structural representation for the integral water-cooled device of rod-type optical fibre.In figure, optical fiber to be cooled is made up of end cap 11 and fiber body 12, and fiber body 12 is positioned on heatsink support base 14 in the V-groove 16 of inscription, contacts with V-groove.Upper cover plate 13 is fixed by screw 19 and heatsink support base 14, simultaneously, optical fiber quartz end cap is positioned in the blossom type groove on side plate 15, inserted screw by the embedded type sinking through hole 110 of 13 on upper cover plate to fix, position can be screwed in by control screw and control to put on the stress on optical fiber quartz end cap.Heatsink support base 14 and side plate 15 are fitted tightly by screw.Cooling liquid is passed in and out by import/export 18, and flows through passage 17, takes away the heat of high-power fiber.
Embodiment 1
Fig. 2 to Fig. 4 is be that the present invention is for the front view of rod-type optical fibre integral cooling device, top view and left view.In figure, optical fiber end cap 11 length is 6mm, end cap diameter 6mm, and rod-type optical fibre 12 diameter is 1mm, fiber lengths 80.4cm, is positioned in the V-groove 16 that aluminum supports on base 14, V-groove degree of depth 0.7mm.V-groove 16, support base 14 length all with compared with fiber lengths slightly short, for 80cm, can prevent quartz from coordinating with support base tension and cause that end cap damages.There is a water-cooling channel 17 bottom V-groove, make water flow by import/export 18.Support base 14 to be connected with upper cover plate 13 by through hole 19.Side plate 15 is screwed in supporting on base 24, and side plate 15 length is slightly longer than end cap 11, for 8mm.By being fixed by end cap with M3 nylon head cylinder setscrew 110 and quincunx groove 111, control to put on the stress on optical fiber quartz end cap by controlling the position of screw 110.Upper cover plate 13 length is 2 side plate 15 length and support base 14 length sum, for 81.6cm.
The stress of optical fiber, by adopting end cap and the optical fiber clamping device of separate type, is uniformly distributed by the present invention, effectively reduces the local stress putting on optical fiber, ensures the stability of optical fiber property.And adopt fluid-cooled mode, and effectively reducing the operating temperature of optical fiber, protection optical fiber works long hours without reducing and beam quality variation due to heat-induced damage, efficiency, it is adaptable to high-capacity optical fiber laser and amplifier.
It is only the preferred embodiment of the present invention described in upper; protection scope of the present invention is not limited to above-described embodiment; all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention; should be understood that; for those skilled in the art; some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (6)
1. the integral cooling device for rod-type optical fibre, it is characterized in that, this device is supported base (14) by metal heat sink, upper cover plate (13) and two pieces of side plates (15) interconnect around forming a cube, support in base (14) at described metal heat sink and be provided with mean for the V-groove (16) that rod-type optical fibre main body (11) to be cooled is placed, and it is carved with cooling duct (17) below this V-groove (16), described metal heat sink support base (14) is additionally provided with this cooling duct (17) together with import/export (18)；Described side plate (15) is provided with mean for the blossom type groove that optical fiber quartz end cap (12) is placed；Being provided with braking screwed hole (110) on described upper cover plate (13), nylon cylinder screw is inserted with screwed hole (110) by braking, and is used for adjusting the stress of optical fiber quartz end cap (12)；Under V-groove (16), cooling liquid, through import/export (18), is flowed by cooling duct (17), takes away the heat accumulation on rod-type optical fibre, reduces the temperature of rod-type optical fibre.
2. the integral cooling device for rod-type optical fibre as claimed in claim 1, it is characterized in that, described rod-type optical fibre is photonic crystal fiber, laser crystal optical fiber or laser ceramics optical fiber, core diameter is more than 30 μm, outer cladding diameter is more than 0.5mm, length is between 0.3～1.2m, without coat.
3. the integral cooling device for rod-type optical fibre as claimed in claim 1, it is characterized in that, the main body of described rod-type optical fibre, optical fiber end cap, metal heat sink support base, upper cover plate and 2 side plates and are screwed, form integrated device, by fully wrapped around to rod-type optical fibre and end cap thereof in cooling structure, it is ensured that the stability of optical fiber structure.
4. the integral cooling device for rod-type optical fibre as claimed in claim 1, it is characterized in that, described rod-type optical fibre main body adopts separate type clamp structure with optical fiber quartz end cap, support base by metal heat sink and support bar-shaped fiber body and optical fiber quartz end cap respectively with side plate, the relative position of flexible fiber body and optical fiber quartz end cap, and the stress putting on silica fibre end cap is controlled by setscrew and blossom type groove, its anti-pressure ability is made to strengthen, prevent bending and the damage of optical fiber, improve the stability of quartz end cap.
5. the integral cooling device for rod-type optical fibre as claimed in claim 1, it is characterized in that, described support base, upper cover, side plate are copper or aluminum heat conductivity is high material, support big 10～100 μm of the V-groove width ratio optical fiber jacket diameter of base and upper cover, support base length consistent with fiber lengths, side plate length is longer than quartz end cap length 1～3mm, and upper cover length is for supporting base length and side plate length sum.
6. the integral cooling device for rod-type optical fibre described in claim 1, it is characterised in that described metal supports chassis interior and passes to the cooling liquid of flowing, and this cooling liquid is water or the liquid of other high heat conduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263613.3A CN105720464B (en) | 2016-04-26 | 2016-04-26 | Integral cooling device for rod-shaped optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263613.3A CN105720464B (en) | 2016-04-26 | 2016-04-26 | Integral cooling device for rod-shaped optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105720464A true CN105720464A (en) | 2016-06-29 |
| CN105720464B CN105720464B (en) | 2019-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610263613.3A Active CN105720464B (en) | 2016-04-26 | 2016-04-26 | Integral cooling device for rod-shaped optical fiber |
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| Country | Link |
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| CN (1) | CN105720464B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994447A (en) * | 2018-01-10 | 2018-05-04 | 西北核技术研究所 | Fiber end face couples protective device |
| CN108346966A (en) * | 2018-03-22 | 2018-07-31 | 中国科学院西安光学精密机械研究所 | High-power optical fiber cladding light stripper |
| CN112152052A (en) * | 2020-09-24 | 2020-12-29 | 上海卫星装备研究所 | Crystal monochromator water-cooling structure and crystal monochromator |
| CN113363796A (en) * | 2021-06-07 | 2021-09-07 | 武汉安扬激光技术有限责任公司 | Packaging system of rod-shaped rare earth-doped optical fiber |
| CN113690722A (en) * | 2021-10-25 | 2021-11-23 | 中国工程物理研究院激光聚变研究中心 | Liquid cooling device of high-power optical fiber device |
| WO2022039233A1 (en) * | 2020-08-20 | 2022-02-24 | 古河電気工業株式会社 | Optical fiber support structure and semiconductor laser module |
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| CN101867143A (en) * | 2010-06-22 | 2010-10-20 | 中国人民解放军国防科学技术大学 | Integral cooling device for high-power optical fiber laser or amplifier |
| JP2013168435A (en) * | 2012-02-14 | 2013-08-29 | Mitsubishi Electric Corp | Rod type fiber laser amplifier and rod type fiber laser oscillator |
| CN204462463U (en) * | 2015-03-13 | 2015-07-08 | 中国工程物理研究院总体工程研究所 | The novel optical fiber possessing water cooling function exports end cap clamper |
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2016
- 2016-04-26 CN CN201610263613.3A patent/CN105720464B/en active Active
Patent Citations (4)
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| CN101082689A (en) * | 2006-05-30 | 2007-12-05 | 宫地技术株式会社 | Optical fiber holding apparatus and fiber laser processing apparatus |
| CN101867143A (en) * | 2010-06-22 | 2010-10-20 | 中国人民解放军国防科学技术大学 | Integral cooling device for high-power optical fiber laser or amplifier |
| JP2013168435A (en) * | 2012-02-14 | 2013-08-29 | Mitsubishi Electric Corp | Rod type fiber laser amplifier and rod type fiber laser oscillator |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994447A (en) * | 2018-01-10 | 2018-05-04 | 西北核技术研究所 | Fiber end face couples protective device |
| CN108346966A (en) * | 2018-03-22 | 2018-07-31 | 中国科学院西安光学精密机械研究所 | High-power optical fiber cladding light stripper |
| CN108346966B (en) * | 2018-03-22 | 2024-08-09 | 中国科学院西安光学精密机械研究所 | High-power optical fiber cladding light stripper |
| WO2022039233A1 (en) * | 2020-08-20 | 2022-02-24 | 古河電気工業株式会社 | Optical fiber support structure and semiconductor laser module |
| JPWO2022039233A1 (en) * | 2020-08-20 | 2022-02-24 | ||
| JP7214928B2 (en) | 2020-08-20 | 2023-01-30 | 古河電気工業株式会社 | Optical fiber support structure and semiconductor laser module |
| CN112152052A (en) * | 2020-09-24 | 2020-12-29 | 上海卫星装备研究所 | Crystal monochromator water-cooling structure and crystal monochromator |
| CN113363796A (en) * | 2021-06-07 | 2021-09-07 | 武汉安扬激光技术有限责任公司 | Packaging system of rod-shaped rare earth-doped optical fiber |
| CN113363796B (en) * | 2021-06-07 | 2022-07-05 | 武汉安扬激光技术股份有限公司 | Packaging system of rod-shaped rare earth-doped optical fiber |
| CN113690722A (en) * | 2021-10-25 | 2021-11-23 | 中国工程物理研究院激光聚变研究中心 | Liquid cooling device of high-power optical fiber device |
Also Published As
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|---|---|
| CN105720464B (en) | 2019-02-01 |
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