CN105527679B - A kind of optical-fiber laser export head and its manufacture method - Google Patents
A kind of optical-fiber laser export head and its manufacture method Download PDFInfo
- Publication number
- CN105527679B CN105527679B CN201511016595.0A CN201511016595A CN105527679B CN 105527679 B CN105527679 B CN 105527679B CN 201511016595 A CN201511016595 A CN 201511016595A CN 105527679 B CN105527679 B CN 105527679B
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- China
- Prior art keywords
- socket tube
- quartz socket
- optical
- metallic sheath
- quartzy
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Classifications
-
- 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
-
- 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
-
- 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
- G02B6/4266—Thermal aspects, temperature control or temperature monitoring
- G02B6/4268—Cooling
-
- 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
-
- 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
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
-
- 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B2006/12166—Manufacturing methods
Abstract
The present invention provides a kind of optical-fiber laser export head, it includes quartzy end cap 4, laser energy-transmission optic fibre 6, metallic sheath 7 and quartz socket tube 8, the quartzy end cap 4 is fitted snugly within the front end of the quartz socket tube 8, the laser energy-transmission optic fibre 6 has one section of cladding light stripper 5, the cladding light stripper 5 and the quartzy welding of end cap 4, and it is sealingly fixed in the quartz socket tube 8, the quartz socket tube 8 is sealingly fixed in the metallic sheath 7, the metallic sheath 7 is provided with inlet opening 9, apopore 10 and circulation cooling water and the connection inlet opening 9 and the gap of the apopore 10.It is reflective that the optical-fiber laser export head in the cladding light stripper that laser energy-transmission optic fibre is set can eliminate returning for remnant pump light and quartzy end face；Cladding light stripper is sealed in quartz socket tube, can be effectively prevented from directly contacting with cooling water, and then avoids impurities in water absorption from eliminating the problem of burning out optical fiber because of Impurity Absorption heat on optical fiber.
Description
Technical field
The present invention relates to laser technology field, more particularly to a kind of high-power optical-fiber laser export head and its manufacturer
Method.
Background technology
Optical fiber laser is due to good beam quality, light-light conversion efficiency high, small volume, non-maintaining, high stability etc.
Advantage, it is widely used in the fields such as industry, medical treatment and national defence.With the continuous development of Fiber laser technology, optical fiber laser
The power more and more higher of output, when transmitting high power laser light, due to the core diameter very little of doubly clad optical fiber, the output end face of optical fiber
Power density it is very high, it is any tiny the defects of and dirty can all burn out optical fiber.
, generally all can be in the quartzy end cap of output end welding one of optical fiber, to increase output light in order to solve this problem
Spot, so as to reduce the energy density of output facula.Specifically, quartzy end cap and part fiber are sealed in metal tube, passed through
Cool down water-cooled.But this mode is by the way of directly being contacted with cooling water using optical fiber due to radiating, and water quality is wanted
Ask higher, and for a long time using rear incrustation scale meeting adsorpting aggregation at naked fibre, cause heat not discharge, so as to burn laser output
Head or laser.
The content of the invention
In view of this, in order to overcome prior art the defects of and problem, the present invention provide a kind of high-power optical-fiber laser
Export head and its manufacture method.
A kind of optical-fiber laser export head, it includes quartzy end cap 4, laser energy-transmission optic fibre 6, metallic sheath 7 and quartz socket tube 8,
The quartzy end cap 4 is fitted snugly within the front end of the quartz socket tube 8, and the laser energy-transmission optic fibre 6 has one section of cladding light
Stripper 5, the cladding light stripper 5 and the quartzy welding of end cap 4, and be sealingly fixed in the quartz socket tube 8, institute
State quartz socket tube 8 to be sealingly fixed in the metallic sheath 7, it is cold that the metallic sheath 7 is provided with inlet opening 9, apopore 10 and circulation
But water and the connection inlet opening 9 and the gap of the apopore 10.
In a better embodiment of the invention, the exit end of the quartzy end cap 4 is coated with anti-reflection film.
In a better embodiment of the invention, the quartz socket tube 8 is fixed on the metallic sheath 7 by metal seal 13
It is interior.
In a better embodiment of the invention, the cladding light stripper 5 is sealed in quartz sleeve by quartzy seal bar 12
In pipe 8.
In a better embodiment of the invention, the front end of the metallic sheath 7 is connected with collimation sleeve 3, the collimation sleeve 3
Front end be equipped with apart from adjustable collimation lens 2 and window screening glass 1, the window screening glass 1 is positioned at the collimation sleeve 3
Port position.
In a better embodiment of the invention, the rear end of the metallic sheath 7 is provided with naked fibre fixture 11, and the naked fibre is fixed
Part 11 and naked fibre protection sleeve pipe 14 are fixed.
In a better embodiment of the invention, the naked fibre protection sleeve pipe 14 is inserted in metal armouring sleeve pipe 15, and fixed
In the rear end of armouring fixed sleeving 16.
A kind of manufacture method of optical-fiber laser export head, it comprises the following steps：
S101, one section of coat for divesting laser energy-transmission optic fibre 6, make cladding light stripper 5；
S103, by the cladding light stripper 5 and the quartzy welding of end cap 4, and fixing seal is in quartz socket tube 8；
S105, the quartz socket tube 8 is inserted in metallic sheath 7, and seals the front-end and back-end in the metallic sheath 7.
In a better embodiment of the invention, further comprise：S107, installation naked fibre protective case 14 are simultaneously inserted in metal armouring
In sleeve pipe 15.
In a better embodiment of the invention, further comprise：S109, by the front end of the metal sleeve 7 and collimation cover
Cylinder 3 connects, and the position by adjusting collimation lens 2 determines output facula, then installs window screening glass 1.
Relative to prior art, optical-fiber laser export head provided by the invention is melted by laser energy-transmission optic fibre and quartzy end cap
Connect, the power density of end face can be reduced, bear higher laser power；In the cladding light stripping that the laser energy-transmission optic fibre is set
It is reflective that returning for remnant pump light and quartzy end face can be eliminated from device；Cladding light stripper is sealed in quartz socket tube, can
To be effectively prevented from directly contacting with cooling water, and then the impurity absorption in water can be avoided on optical fiber, eliminated because impurity is inhaled
The problem of receiving heat and burning out optical fiber.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of optical-fiber laser export head provided by the invention；
Fig. 2 is the flow chart of the manufacture method of optical-fiber laser export head shown in Fig. 1.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the better embodiment of the present invention.The preferred embodiments of the present invention are these are only, not thereby limit the special of the present invention
Sharp scope, every equivalent structure made using description of the invention and accompanying drawing content or equivalent flow conversion, or directly or
Connect and be used in other related technical areas, be included within the scope of the present invention.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more
The arbitrary and all combination of related Listed Items.
Referring to Fig. 1, first embodiment of the invention provides a kind of optical-fiber laser export head, it includes quartzy end cap 4, laser
Energy-transmission optic fibre 6, metallic sheath 7 and quartz socket tube 8, the quartzy end cap 4 are fitted snugly within the front end of the quartz socket tube 8, institute
Stating laser energy-transmission optic fibre 6 has one section of cladding light stripper 5, the cladding light stripper 5 and the quartzy welding of end cap 4, and
It is sealingly fixed in the quartz socket tube 8, the quartz socket tube 8 is sealingly fixed in the metallic sheath 7, the metallic sheath
7 are provided with inlet opening 9, apopore 10 and circulation cooling water and connect the inlet opening 9 and the gap of the apopore 10.
Preferably, the exit end of the quartzy end cap 4 is coated with anti-reflection film, it is possible thereby to improve laser in the quartzy end cap
4 exitance.In the present embodiment, the quartzy end cap 4 hermetically coordinates the front inner surface of the quartz socket tube 8.
In the present embodiment, the laser energy-transmission optic fibre 6 has divested a segment length about 4cm coat, and by chemical rotten
Erosion making forms the cladding light stripper 5, the quartz that the cladding light stripper 5 made is about 8mm with diameter
End cap 4 passes through large core fiber heat sealing machine welding.After welding is good, the cladding light stripper 5 is sealed by quartzy seal bar 12
In quartz socket tube 8, specifically, the quartzy seal bar 12 hermetically coordinates the aft end interior surface of the quartz socket tube 8.
It is understood that the quartzy end cap 4 and the quartzy seal bar 12 are respectively from the front end of the quartz socket tube 8
With cladding light stripper 5 described in back-end sealing and part the laser energy-transmission optic fibre 6.
In the present embodiment, the quartz socket tube 8 is fixed in the metallic sheath 7 by metal seal 13.Specifically, institute
State the outer surface of the front end of quartz socket tube 8 and the front inner surface of the metallic sheath 7 hermetically coordinates, the quartz socket tube 8
Rear end be then closely attached the metal seal 13, and pass through the rear end of the metal seal 13 and the metallic sheath 7
Inner surface hermetically coordinates.Preferably, the external diameter of the metal seal 13 is more than the external diameter of the quartz socket tube 8.
It is understood that between the inlet opening 9 of the metallic sheath 7, apopore 10 and connection inlet opening 9 and apopore 10
Gap collectively forms the passage of circulation cooling water, and thus, cooling water can be cooled down directly to the quartz socket tube 8, Jin Erke
With effectively by heat exchange to cooling inside the quartzy end cap 4 and the quartz socket tube 8.
In the present embodiment, the rear end of the metallic sheath 7 is provided with naked fibre fixture 11, and the naked fibre fixture 11 is used to fix
Naked fibre of the laser energy-transmission optic fibre 6 outside the quartz socket tube 8.Preferably, the naked fibre fixture 11 and naked fibre protection
Sleeve pipe 14 is fixed, and the naked fibre protection sleeve pipe 14 is inserted in metal armouring sleeve pipe 15, and after being fixed on armouring fixed sleeving 16
End.
Further, the front end of the metallic sheath 7 is connected with collimation sleeve 3, and the front end of the collimation sleeve 3 is equipped with distance
Adjustable collimation lens 2 and window screening glass 1, port position of the window screening glass 1 positioned at the collimation sleeve 3.
Preferably, the front end of the metal sleeve 7 is connected by screw thread and collimation sleeve 3.
Referring to Fig. 2, second embodiment of the invention provides a kind of manufacture method of optical-fiber laser export head, it includes as follows
Step：
S101, one section of coat for divesting laser energy-transmission optic fibre 6, make cladding light stripper 5.
In the present embodiment, the segment length of laser energy-transmission optic fibre 6 one about 4cm coat is divested, and passes through chemical attack
Making forms the cladding light stripper 5.
S103, by the cladding light stripper 5 and the quartzy welding of end cap 4, and fixing seal is in quartz socket tube 8.
In the present embodiment, the quartzy end cap 4 that the cladding light stripper 5 and the diameter made are about 8mm passes through
Large core fiber heat sealing machine welding.After welding is good, the cladding light stripper 5 is sealed in quartz socket tube by quartzy seal bar 12
In 8.Specifically, the quartzy end cap 4 hermetically coordinates the front inner surface of the quartz socket tube 8, the quartzy seal bar
12 hermetically coordinate the aft end interior surface of the quartz socket tube 8.Thus, the quartzy end cap 4 and the quartzy seal bar 12
Respectively the cladding light stripper 5 and the part laser energy-transmission optic fibre 6 are sealed from the front-end and back-end of the quartz socket tube 8.
S105, the quartz socket tube 8 is inserted in metallic sheath 7, and seals the front-end and back-end in the metallic sheath 7.
In the present embodiment, the outer surface of the front end of the quartz socket tube 8 and the front inner surface sealing of the metallic sheath 7
Ground coordinates, and the rear end of the quartz socket tube 8 is then closely attached the metal seal 13, and passes through the metal seal 13
Hermetically coordinate with the aft end interior surface of the metallic sheath 7.
Further, it is further comprising the steps of：
S107, installation naked fibre protective case 14 are simultaneously inserted in metal armouring sleeve pipe 15.
The front end of the metal sleeve 7 and collimation sleeve 3 are connected, output is determined by the position for adjusting collimation lens 2
Hot spot, then window screening glass 1 is installed.
Preferably, the front end of the metal sleeve 7 is connected by screw thread and collimation sleeve 3.
Relative to prior art, optical-fiber laser export head provided by the invention passes through laser energy-transmission optic fibre 6 and quartzy end cap 4
Welding, the power density of end face can be reduced, bear higher laser power；In the covering that the laser energy-transmission optic fibre 6 is set
It is reflective that photospallation device 5 can eliminate returning for remnant pump light and quartzy end face；Cladding light stripper 5 is sealed in quartz socket tube
In 8, can be effectively prevented from directly contacting with cooling water, and then the impurity absorption in water can be avoided on optical fiber, eliminate because
Impurity Absorption heat and the problem of burn out optical fiber.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (7)
1. a kind of optical-fiber laser export head, it is characterised in that including quartzy end cap (4), laser energy-transmission optic fibre (6), metallic sheath (7)
And quartz socket tube (8), the quartzy end cap (4) are fitted snugly within the front end of the quartz socket tube (8), the laser energy light
Fine (6) have one section of cladding light stripper (5), the cladding light stripper (5) and quartzy end cap (4) welding, and seal
Ground is fixed in the quartz socket tube (8), and the quartz socket tube (8) is sealingly fixed in the metallic sheath (7), the metal
Cover (7) and be provided with inlet opening (9), apopore (10) and circulation cooling water and the connection inlet opening (9) and the apopore (10)
Gap；The exit end of the quartzy end cap (4) is coated with anti-reflection film；The quartz socket tube (8) is solid by metal seal (13)
It is scheduled in the metallic sheath (7).
2. optical-fiber laser export head as claimed in claim 1, it is characterised in that the cladding light stripper (5) passes through quartz
Seal bar (12) is sealed in quartz socket tube (8).
3. optical-fiber laser export head as claimed in claim 1, it is characterised in that the front end of the metallic sheath (7) is connected with standard
Straight sleeve (3), the front end of the collimation sleeve (3) are equipped with apart from adjustable collimation lens (2) and window screening glass (1), institute
State port position of the window screening glass (1) positioned at the collimation sleeve (3).
4. optical-fiber laser export head as claimed in claim 1, it is characterised in that the rear end of the metallic sheath (7) is provided with naked fibre
Fixture (11), the naked fibre fixture (11) and naked fibre protection sleeve pipe (14) are fixed.
5. optical-fiber laser export head as claimed in claim 4, it is characterised in that the naked fibre protection sleeve pipe (14) is inserted in metal
In armor sleeve (15), and it is fixed on the rear end of armouring fixed sleeving (16).
6. a kind of manufacture method of optical-fiber laser export head, it is characterised in that comprise the following steps：
S101, one section of coat for divesting laser energy-transmission optic fibre (6), make cladding light stripper (5)；
S103, by the cladding light stripper (5) and quartzy end cap (4) welding, and fixing seal is in quartz socket tube (8)；
S105, the quartz socket tube (8) is inserted in metallic sheath (7), and seals the front-end and back-end in the metallic sheath (7)；
S107, installation naked fibre protective case (14) are simultaneously inserted in metal armouring sleeve pipe (15).
7. the manufacture method of optical-fiber laser export head as claimed in claim 6, it is characterised in that further comprise：
S109, by the front end of the metal sleeve (7) and collimation sleeve (3) connection, it is true by the position for adjusting collimation lens (2)
Determine output facula, window screening glass (1) is then installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511016595.0A CN105527679B (en) | 2015-12-29 | 2015-12-29 | A kind of optical-fiber laser export head and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511016595.0A CN105527679B (en) | 2015-12-29 | 2015-12-29 | A kind of optical-fiber laser export head and its manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105527679A CN105527679A (en) | 2016-04-27 |
| CN105527679B true CN105527679B (en) | 2017-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511016595.0A Active CN105527679B (en) | 2015-12-29 | 2015-12-29 | A kind of optical-fiber laser export head and its manufacture method |
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| CN106998031A (en) * | 2017-05-17 | 2017-08-01 | 中国兵器装备研究院 | A kind of manufacture method of the quartzy end cap of high power |
| CN107332100B (en) * | 2017-08-09 | 2023-08-01 | 光惠（上海）激光科技有限公司 | Water-cooled easy-to-disassemble and-wash laser output head with output light path and light output power detection function |
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| CN110119011B (en) * | 2018-02-07 | 2021-09-07 | 深圳市创鑫激光股份有限公司 | Laser lens, laser output head with laser lens and laser |
| CN110196499A (en) * | 2018-02-26 | 2019-09-03 | 西安中科汇纤光电科技有限公司 | A kind of laser export head and manufacturing method for Spectral beam combining |
| CN110323657B (en) * | 2018-03-31 | 2021-06-11 | 深圳市创鑫激光股份有限公司 | Laser output head and laser |
| CN110323654B (en) * | 2018-03-31 | 2021-05-18 | 深圳市创鑫激光股份有限公司 | Laser output head and laser |
| CN110323658B (en) * | 2018-03-31 | 2021-08-24 | 深圳市创鑫激光股份有限公司 | Laser output head and laser |
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| CN111123533A (en) * | 2019-05-10 | 2020-05-08 | 杭州奥创光子技术有限公司 | Laser output head for spectrum beam combination and preparation method thereof |
| WO2021092953A1 (en) * | 2019-11-15 | 2021-05-20 | 广东省智能机器人研究院 | Optical fiber output head |
| CN114865429B (en) * | 2022-07-06 | 2022-10-14 | 光越科技(深圳)有限公司 | Laser output head and laser output equipment |
| CN115275746A (en) * | 2022-07-21 | 2022-11-01 | 中国人民解放军国防科技大学 | Integrated high-power optical fiber laser output system based on gas refrigeration |
| CN115986539A (en) * | 2023-01-04 | 2023-04-18 | 北京东方锐镭科技有限公司 | Fiber laser based on optical fiber coating resonant cavity |
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| Publication number | Publication date |
|---|---|
| CN105527679A (en) | 2016-04-27 |
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