CN104865646A - High-power optical collimator - Google Patents
High-power optical collimator Download PDFInfo
- Publication number
- CN104865646A CN104865646A CN201510316375.3A CN201510316375A CN104865646A CN 104865646 A CN104865646 A CN 104865646A CN 201510316375 A CN201510316375 A CN 201510316375A CN 104865646 A CN104865646 A CN 104865646A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- lens
- collimating apparatus
- power optical
- glass bushing
- Prior art date
- 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.)
- Pending
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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
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
- G02B6/325—Optical coupling means having lens focusing means positioned between opposed fibre ends comprising a transparent member, e.g. window, protective plate
Abstract
The invention relates to a high-power optical collimator, comprising a lens, a glass sleeve, and an optical fiber. The optical collimator is characterized in that a surface of the lens is welded with an optical fiber core, and the optical fiber is sleeved with the glass sleeve, and the glass sleeve is molten on the optical fiber core by using a carbon dioxide laser. The focus of the lens is on a plane end. The optical fiber and the lens are welded together. The end face of the optical is on the focus of the lens. The glass sleeve is molten on the optical fiber, and plays a role of stripping cladding light. The optical collimator is simple in structure, high in reliability, and can realize collimation of high-power laser.
Description
Technical field
The present invention relates to one and can bear powerful optical fiber collimator, this collimating apparatus coupling efficiency is high, good beam quality, can be used for semiconductor laser field.
Background technology
In recent years, along with the development of epitaxial growth of semiconductor material growing technology, semiconductor laser waveguiding structure optimisation technique, passivating cavity surface technology, high stability encapsulation technology, high efficiency and heat radiation technology, particularly the demand driving optical fiber of direct semiconductor Laser industry processed and applied and high power fiber laser to export high-power, the laser instrument develop rapidly of high light beam quality.The directional light that optical fiber collimator both may be used for multiple pumping chip to close bundle is coupled into optical fiber, also may be used for the light that collimating optical fibre sends, has a wide range of applications.
Along with the raising of laser power, the key transmitted in a fiber is not signal, but energy.Be be separated between traditional optical fiber collimator lens and optical fiber, optical fiber will plate anti-reflection film to reduce reflected light, and optical fiber utilizes glue to fix.After optical fiber collimator is used for high power laser, there is more problem in traditional optical fiber collimator, lens are separated with optical fiber, and causing has dust can drop on fiber end face or lensed endface, like this, produce power will pile up, cause optical fiber collimator to burn out; If the film number of plies that optical fiber plates too much just is easy to burn, the number of plies is very few will not reach requirement; The glue of fixed fiber is easy to be burnt, even if some glue can bear higher heat, but under long term high temperature working environment, and also can accelerated deterioration.
Fig. 1 is another kind of optical fiber collimator, can shown in See patent 103246019.A, described optical fiber collimator comprises a cylindrical lens 110 and optical fiber 120, at lens 110 front end face place, central axis has optical fiber duct 130, optical fiber is inserted in optical fiber duct 130, and intermediate gaps optical fiber coupling cream 140 fills up, wherein, 150 is optical glue, for the coating of naked fibre.This invention structure is simple, and without the need to the adjustment of loaded down with trivial details light path, but in the invention, used optical fiber coupling cream and optical glue, these, for after powerful laser, can volatilize material or burn out.
Summary of the invention
Object of the present invention in order to overcome above-mentioned prior art Problems existing, and provides a kind of large-power optical fiber collimating apparatus, and optical fiber collimator of the present invention is without the need to the adjustment of loaded down with trivial details light path, and parts are simplified, and technique is simple, and can bear powerful laser.
The object of the invention is to be achieved through the following technical solutions.
A kind of large-power optical fiber collimating apparatus, comprises lens, glass bushing, optical fiber, it is characterized in that: lens one side and optical fiber core diameter are welded together; Glass bushing on overlapping on optical fiber again, and use carbon dioxide laser to be melted on optical fiber core diameter by glass bushing.
Two faces of described lens, one of them face is free form surface, and a face is plane.
The center line of described lens and the center line of optical fiber are on same straight line, and fiber end face is together with a flush weld of lens.
The focus of described lens is in the plane of lens.
The free form surface of described lens is coated with anti-reflection film.
The refractive index of lens is identical with optical fiber or close.
The fusing point of described glass bushing is less than the fusing point of optical fiber.
The refractive index of described glass bushing is greater than the refractive index of optical fiber, plays the effect of peeling off cladding light.
Optical fiber collimator structure of the present invention is simple, and reliability is high, can realize the collimation of high power laser light.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing patent 103246019.A.
Fig. 2 is the structural representation of example of the present invention.
Fig. 3 is the schematic diagram of glass bushing of the present invention.
Embodiment
Below in conjunction with accompanying drawing and example, the invention will be further described.
As shown in Figure 2 and Figure 3, large-power optical fiber collimating apparatus of the present invention comprises lens 1, glass bushing 2 and optical fiber 3, two faces of described lens 1, one of them face is free form surface, and a face is plane, the free form surface of described lens is sphere, and plane and the fiber end face core diameter of lens are welded together; Optical fiber removes one section of coat, exposes fiber core, fiber core puts glass bushing, and uses carbon dioxide laser to melt on optical fiber core diameter by glass bushing 2; The center line of described lens and the center line of optical fiber are on same straight line, and the focus of described lens, in the plane of lens, after therefore directional light can be focused on by thick lens, enters in optical fiber core diameter.The free form surface of described lens is coated with anti-reflection film.
The Refractive Index of Material of the lens that the focus of lens uses at the plane place of lens is identical with optical fiber core diameter, and like this, light enters optical fiber from thick lens, does not just have the generation of reflected light, and therefore, optical fiber does not need grinding and polishing and plated film.The fusing point of glass bushing is less than optical fiber core diameter, so just can be melted on optical fiber core diameter.Refractive index due to glass bushing is greater than optical fiber core diameter, and the light entering fibre cladding so has just been stripped out avoids cladding light to be burnt by optical fiber too much.
Claims (8)
1. a large-power optical fiber collimating apparatus, comprises lens, glass bushing, optical fiber, it is characterized in that: lens one side and optical fiber core diameter are welded together; Glass bushing on overlapping on optical fiber again, and use carbon dioxide laser to be melted on optical fiber core diameter by glass bushing.
2. a kind of large-power optical fiber collimating apparatus according to claim 1, is characterized in that: two faces of described lens, and one of them face is free form surface, and a face is plane.
3. a kind of large-power optical fiber collimating apparatus according to claim 2, is characterized in that: the center line of described lens and the center line of optical fiber are on same straight line, and fiber end face is together with a flush weld of lens.
4. a kind of large-power optical fiber collimating apparatus according to claim 2, is characterized in that: the focus of described lens is in the plane of lens.
5. a kind of large-power optical fiber collimating apparatus according to claim 2, is characterized in that: the free form surface of described lens is coated with anti-reflection film.
6. a kind of large-power optical fiber collimating apparatus according to claim 2, is characterized in that: the refractive index of described lens is identical with optical fiber or close.
7. a kind of large-power optical fiber collimating apparatus according to claim 1, is characterized in that: the fusing point of described glass bushing is less than the fusing point of optical fiber.
8. a kind of large-power optical fiber collimating apparatus according to claim 2, is characterized in that: the refractive index of described glass bushing is greater than the refractive index of optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316375.3A CN104865646A (en) | 2015-06-10 | 2015-06-10 | High-power optical collimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316375.3A CN104865646A (en) | 2015-06-10 | 2015-06-10 | High-power optical collimator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104865646A true CN104865646A (en) | 2015-08-26 |
Family
ID=53911600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510316375.3A Pending CN104865646A (en) | 2015-06-10 | 2015-06-10 | High-power optical collimator |
Country Status (1)
| Country | Link |
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| CN (1) | CN104865646A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654821A (en) * | 2015-11-02 | 2017-05-10 | 中国兵器装备研究院 | Multifunctional integrated high-power all-fiber device |
| CN106646743A (en) * | 2015-10-28 | 2017-05-10 | 中国兵器装备研究院 | Cladding power filter in fusion method |
| CN106654822A (en) * | 2015-11-02 | 2017-05-10 | 中国兵器装备研究院 | Integrated high power all-fiber device |
| CN109407213A (en) * | 2018-11-07 | 2019-03-01 | 武汉锐科光纤激光技术股份有限公司 | A kind of laser energy wire jumper and preparation method thereof |
| CN109814209A (en) * | 2019-03-21 | 2019-05-28 | 江苏光扬光电科技有限公司 | A kind of optical fiber collimator and its production technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6282349B1 (en) * | 2000-02-17 | 2001-08-28 | Stephen Griffin | Launch fiber termination |
| CN103246020A (en) * | 2013-05-23 | 2013-08-14 | 深圳市天阳谷科技发展有限公司 | Optical fiber collimator and production method thereof |
| CN103257399A (en) * | 2013-04-26 | 2013-08-21 | 中国人民解放军国防科学技术大学 | Device used for fiber laser and capable of filtering out cladding light |
| CN103454730A (en) * | 2013-09-26 | 2013-12-18 | 深圳朗光科技有限公司 | Optical fiber collimator |
| CN204790068U (en) * | 2015-06-10 | 2015-11-18 | 武汉锐科光纤激光技术股份有限公司 | High -power optical collimator |
-
2015
- 2015-06-10 CN CN201510316375.3A patent/CN104865646A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6282349B1 (en) * | 2000-02-17 | 2001-08-28 | Stephen Griffin | Launch fiber termination |
| CN103257399A (en) * | 2013-04-26 | 2013-08-21 | 中国人民解放军国防科学技术大学 | Device used for fiber laser and capable of filtering out cladding light |
| CN103246020A (en) * | 2013-05-23 | 2013-08-14 | 深圳市天阳谷科技发展有限公司 | Optical fiber collimator and production method thereof |
| CN103454730A (en) * | 2013-09-26 | 2013-12-18 | 深圳朗光科技有限公司 | Optical fiber collimator |
| CN204790068U (en) * | 2015-06-10 | 2015-11-18 | 武汉锐科光纤激光技术股份有限公司 | High -power optical collimator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646743A (en) * | 2015-10-28 | 2017-05-10 | 中国兵器装备研究院 | Cladding power filter in fusion method |
| CN106654821A (en) * | 2015-11-02 | 2017-05-10 | 中国兵器装备研究院 | Multifunctional integrated high-power all-fiber device |
| CN106654822A (en) * | 2015-11-02 | 2017-05-10 | 中国兵器装备研究院 | Integrated high power all-fiber device |
| CN109407213A (en) * | 2018-11-07 | 2019-03-01 | 武汉锐科光纤激光技术股份有限公司 | A kind of laser energy wire jumper and preparation method thereof |
| CN109407213B (en) * | 2018-11-07 | 2023-10-13 | 武汉锐科光纤激光技术股份有限公司 | Laser energy transfer jumper wire and manufacturing method thereof |
| CN109814209A (en) * | 2019-03-21 | 2019-05-28 | 江苏光扬光电科技有限公司 | A kind of optical fiber collimator and its production technology |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150826 |