CN109560449A - A kind of novel pump optical fiber combiner structure for exempting to draw cone - Google Patents
A kind of novel pump optical fiber combiner structure for exempting to draw cone Download PDFInfo
- Publication number
- CN109560449A CN109560449A CN201811473632.4A CN201811473632A CN109560449A CN 109560449 A CN109560449 A CN 109560449A CN 201811473632 A CN201811473632 A CN 201811473632A CN 109560449 A CN109560449 A CN 109560449A
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- China
- Prior art keywords
- optical fiber
- pumping
- coupling device
- exempting
- beam coupling
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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.)
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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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
-
- 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
- G02B6/262—Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements
-
- 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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094049—Guiding of the pump light
- H01S3/094053—Fibre coupled pump, e.g. delivering pump light using a fibre or a fibre bundle
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Lasers (AREA)
Abstract
A kind of novel pump optical fiber combiner structure for exempting to draw cone, the fiber pump combiner are combined by the device of at least one pumping optical fiber, conjunction beam coupling device and device and output for encapsulating, fixing by bundling device and are constituted.The conjunction beam coupling device is prepared by the quartz material of special shape, including two parts of convex mirror and tapered cylinder, and wherein the side of tapered cylinder has plated the high reflectivity film for pumping wavelength, can guarantee the efficiency for closing beam.Conventional pump can be effectively prevented using pump optical fiber combiner structure prepared by this new structure and close optical fiber drawing cone bring mechanical instability under Shu Fangfa, can be used for high-capacity optical fiber laser pumping close beam, improve pump brightness and it is with higher can preparative convenient for promote.
Description
Technical field
The present invention relates to optical fiber laser field more particularly to pump optical fiber combiner structures.
Background technique
In full-optical-fiber laser system, the coupling technique of pump light be the key that determine whole system efficiency factor it
One, the Primary Component of coupling technique is optical-fiber bundling device, and the manufacture craft level of the device plays certainly the coupling efficiency of bundling device
Qualitative effect.Existing all -fiber chemical combination beam technology is broadly divided into two kinds: end pumping and profile pump.The optical fiber of mainstream closes
Beam device take be by the preparation process of multifiber (generally odd number) fused biconical taper, will be produced by multiple semiconductor lasers
Pump power be coupled in a root multimode fiber and export.This preparation method can obtain good coupling efficiency, but adopt
Very high requirement, and the mechanical fiber optic stability after fused biconical taper can be proposed to preparation technology parameter with fused biconical taper technique
Difference is easy to be broken, and causes optical-fiber bundling device preparation yield rate low, and there are still certain difficulties for high-power optical fiber pumping source conjunction beam.
Therefore the present invention proposes a kind of novel pump optical fiber combiner structure for exempting to draw cone, after can effectively solve the problem that optical fiber fused tapering
Bring mechanical stability difference problem, and beam is closed in the pumping for being suitable for high-capacity optical fiber laser, improves pump brightness, it is right
Extensive high-volume pump combiner production practices are instructed to be of great significance.
Summary of the invention
The purpose of the present invention is to provide a kind of novel pump optical fiber combiner structures for exempting to draw cone, it can effectively be avoided
Conventional pumping closes optical fiber under Shu Fangfa and draws cone bring mechanical instability, and the pumping that can be used for high-capacity optical fiber laser is closed
Beam, improve pump brightness and it is with higher can preparative convenient for promote.
Technical solution of the invention is as follows:
A kind of novel pump optical fiber combiner structure for exempting to draw cone, it is characterized in that, including at least one pumping optical fiber, conjunction
Beam coupling device, optic fibre fixing device and optical fiber output device；
The pumping optical fiber is fixed by optic fibre fixing device with the input terminal for closing beam coupling device, and optical fiber output is passed through
Device is fixed with the output end for closing beam coupling device；
The conjunction beam coupling device is integrally formed by convex mirror and tapered cylinder, the convex mirror and tapered cylinder
Input section is identical, and the lateral surface of tapered cylinder is coated with the high reflectivity film for pumping wavelength, can guarantee to close beam coupling
The efficiency of device conjunction beam.
The pumping optical fiber, which is 1,3,7,19,61, has the spies such as identical size, structure, numerical aperture
The optical fiber of property parameter.
The optic fibre fixing device is ferrule, which consolidates pumping optical fiber and conjunction beam coupling device welding
It is scheduled on together.
The output device is made of output optical fibre with the tapered cylinder output phase welding for closing beam coupling device, taper circle
Column output end face size is consistent with output optical fibre cladding size.
The conjunction beam coupling device material is quartz, and refractive index is consistent with pumping optical fiber cladding index.
The amount of curvature of the convex mirror and the number of pumping optical fiber are related, are capable of increasing pump light using convex configuration
Incident area.
The high reflectivity film high reflection wavelength bandwidth is directed to pumping wavelength, and reflectivity is higher than 99%, film structure
Design wavelength can be according to the characteristics of equipment and demand is arbitrarily chosen.
Compared with prior art, beneficial effects of the present invention:
It can guarantee that conventional pump is effectively prevented while closing the efficiency of beam closes beam using special conjunction beam coupling device
Optical fiber draws cone bring mechanical instability under method, and beam is closed in the pumping that can be used for high-capacity optical fiber laser, and it is bright to improve pumping
Degree and it is with higher can preparative convenient for promote.
Detailed description of the invention
Fig. 1 is a kind of novel pump optical fiber combiner structural schematic diagram for exempting to draw cone of the present invention
Specific embodiment
With reference to the accompanying drawing and example, specific embodiments of the present invention will be described in further detail, and following instance is used
In illustrating the present invention, but it is not intended to limit the scope of the invention.
As shown in Figure 1, a kind of novel pump optical fiber combiner structure for exempting to draw cone, fiber pump combiner is by least one
Pumping optical fiber 1 closes beam coupling device 2, optic fibre fixing device 3 and the combination composition of output device 4.
1 number of pumping optical fiber, which is 1,3,7,19 or 61, has identical size, structure, numerical aperture
The optical fiber of the characterisitic parameters such as diameter is the input terminal of optical signal, is used for input optical signal.Specific each pumping optical fiber is ok
Couple a semiconductor pump laser.
The conjunction beam coupling device 2 includes 6 two parts of convex mirror 5 and tapered cylinder, and convex mirror 5 improves optical fiber input
Surface area, convex mirror 5 is identical with 6 input section of tapered cylinder, and wherein the side of tapered cylinder 6 has been plated for pumping wavelength
High reflectivity film 7, can guarantee close beam coupling device close beam efficiency.
The conjunction beam coupling device 2, the amount of curvature of convex mirror 5 is related with the number of pumping optical fiber 1, is tied using convex surface
Structure is capable of increasing pump beam incidence surface product.
Further 2 material of beam coupling device of closing is quartz, and refractive index is consistent with pumping optical fiber cladding index.
Specifically, 6 side of tapered cylinder of conjunction beam coupling device is coated with high reflectivity film 7, high reflection wavelength bandwidth
For pumping wavelength, the design wavelength of film structure can be good at protecting according to the characteristics of equipment and demand is arbitrarily chosen
Card closes the efficiency of beam coupling.
The device 3 for encapsulating, fixing by bundling device is a casing, and effect is that pumping optical fiber is fixed and and closes
Beam coupling device is welded and fixed on together, specifically can be quartz glass sleeve.
The output device 4 is made of output optical fibre with the tapered cylinder output phase welding for closing beam coupling device, for defeated
Optical signals, tapered cylinder output end face size are consistent with output optical fibre cladding size.
In one embodiment of the invention, a kind of novel pump optical fiber combiner structure for exempting from drawing cone is by pumping
Optical fiber 1 closes beam coupling device 2 and constitutes for combining the device 4 of optical fiber and encapsulation, the device 3 of fixation and output.Pumping
Optical fiber includes the optical fiber of 7 same characteristic features parameters, and pumping optical fiber is uniformly fixed on quartz glass sleeve with epoxide-resin glue
In, it is polished using end surface grinding of the grinder to pumping optical fiber, is allowed to coincide with the convex surface for closing beam coupling device, to reduce pump
Then loss in the optical transmission process of Pu by the pumping optical fiber for encapsulating and fixing and closes beam coupling using carbon dioxide heat sealing machine
It attaches together and sets welding.Finally by output optical fibre and close beam coupling device taper output end phase welding, tapered output end size with it is defeated
Fibre cladding size is consistent out, and output optical fibre is bigger than input optical fibre size.
Described novel pump optical fiber combiner pumping optical fiber one end is laser input, and each optical fiber can pass through light
The mode of fibre coupling is connected with semiconductor pump laser.
Closing beam coupling device in this example includes two parts of convex mirror and tapered cylinder.Closing beam coupling device material is
Quartz, refractive index are consistent with pumping optical fiber cladding index.The method system that polishing can be poured by haveing suffered vitreous silica
Standby, convex mirror improves the surface area of optical fiber input, and convex mirror is identical with tapered cylinder input section, and the curvature of convex mirror is big
It is small related with the number of pumping optical fiber, pump beam incidence surface product is capable of increasing using convex configuration.It plates the side of tapered cylinder
For the high reflectivity film of pumping wavelength, can guarantee to close the efficiency that beam coupling device closes beam.
The present invention proposes a kind of novel pump optical fiber combiner structure for exempting to draw cone, using special conjunction beam coupling device energy
Enough guarantees effectively prevent conventional pump and close optical fiber drawing cone bring mechanical instability under Shu Fangfa while closing the efficiency of beam,
Can be used for high-capacity optical fiber laser pumping close beam, improve pump brightness and it is with higher can preparative convenient for promote.
Claims (7)
1. it is a kind of exempt from draw cone novel pump optical fiber combiner structure, which is characterized in that including at least one pumping optical fiber (1),
Close beam coupling device (2), optic fibre fixing device (3) and optical fiber output device (4)；
The pumping optical fiber (1) is fixed by optic fibre fixing device (3) with the input terminal for closing beam coupling device (2), and light is passed through
Fine output device (4) is fixed with the output end for closing beam coupling device (2)；
The conjunction beam coupling device (2) is integrally formed by convex mirror (5) and tapered cylinder (6), the convex mirror (5) and cone
The input section of shape cylinder (6) is identical, and the lateral surface of tapered cylinder (6) is coated with the high reflectivity film (7) for pumping wavelength,
It can guarantee to close the efficiency that beam coupling device closes beam.
2. the novel pump optical fiber combiner structure according to claim 1 for exempting to draw cone, which is characterized in that the pumping
Optical fiber (1) is the optical fiber of 1,3,7,19,61 parameter with identical size, structure and numerical aperture.
3. the novel pump optical fiber combiner structure according to claim 1 for exempting to draw cone, which is characterized in that the optical fiber
Fixed device (3) are ferrule, which is welded and fixed on pumping optical fiber (1) and conjunction beam coupling device (2) together.
4. the novel pump optical fiber combiner structure according to claim 1 for exempting to draw cone, which is characterized in that the output
Device (4) is made of output optical fibre (8) with tapered cylinder (6) the output phase welding for closing beam coupling device, tapered cylinder (6) output
Face size is consistent with output optical fibre (8) cladding size.
5. the novel pump optical fiber combiner structure according to claim 1 for exempting to draw cone, which is characterized in that the conjunction beam
Coupling device (2) material is quartz, and refractive index is consistent with pumping optical fiber (1) cladding index.
6. -5 any novel pump optical fiber combiner structure for exempting to draw cone according to claim 1, which is characterized in that described
Convex mirror (5) amount of curvature it is related with the number of pumping optical fiber, using convex configuration be capable of increasing pump beam incidence surface product.
7. -5 any novel pump optical fiber combiner structure for exempting to draw cone according to claim 1, which is characterized in that described
High reflectivity film (7) high reflection wavelength bandwidth be directed to pumping wavelength, reflectivity be higher than 99%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811473632.4A CN109560449A (en) | 2018-12-04 | 2018-12-04 | A kind of novel pump optical fiber combiner structure for exempting to draw cone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811473632.4A CN109560449A (en) | 2018-12-04 | 2018-12-04 | A kind of novel pump optical fiber combiner structure for exempting to draw cone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109560449A true CN109560449A (en) | 2019-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811473632.4A Pending CN109560449A (en) | 2018-12-04 | 2018-12-04 | A kind of novel pump optical fiber combiner structure for exempting to draw cone |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112363277A (en) * | 2021-01-13 | 2021-02-12 | 深圳市星汉激光科技股份有限公司 | Optical fiber beam combining structure and manufacturing method thereof |
| GB2612460A (en) * | 2019-04-11 | 2023-05-03 | Corelase Oy | Fiber laser pump reflector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1343894A (en) * | 2001-10-22 | 2002-04-10 | 中国科学院上海光学精密机械研究所 | Dynamic optical coupler for optical communication |
| CN105137610A (en) * | 2015-10-22 | 2015-12-09 | 海信集团有限公司 | Laser dissipation spot path, two-color and three-color laser source |
| CN108027115A (en) * | 2015-09-10 | 2018-05-11 | 优志旺电机株式会社 | Light supply apparatus |
| CN108761809A (en) * | 2018-03-28 | 2018-11-06 | 中国科学院上海光学精密机械研究所 | Multifiber beam penetrates the device of quartz capillary and penetrates method |
| CN108780190A (en) * | 2015-12-31 | 2018-11-09 | 恩耐公司 | Fiber pump combiner |
-
2018
- 2018-12-04 CN CN201811473632.4A patent/CN109560449A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1343894A (en) * | 2001-10-22 | 2002-04-10 | 中国科学院上海光学精密机械研究所 | Dynamic optical coupler for optical communication |
| CN108027115A (en) * | 2015-09-10 | 2018-05-11 | 优志旺电机株式会社 | Light supply apparatus |
| CN105137610A (en) * | 2015-10-22 | 2015-12-09 | 海信集团有限公司 | Laser dissipation spot path, two-color and three-color laser source |
| CN108780190A (en) * | 2015-12-31 | 2018-11-09 | 恩耐公司 | Fiber pump combiner |
| CN108761809A (en) * | 2018-03-28 | 2018-11-06 | 中国科学院上海光学精密机械研究所 | Multifiber beam penetrates the device of quartz capillary and penetrates method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2612460A (en) * | 2019-04-11 | 2023-05-03 | Corelase Oy | Fiber laser pump reflector |
| GB2612460B (en) * | 2019-04-11 | 2023-10-04 | Corelase Oy | Fiber laser pump reflector |
| GB2596483B (en) * | 2019-04-11 | 2024-01-03 | Corelase Oy | Fiber laser pump reflector |
| CN112363277A (en) * | 2021-01-13 | 2021-02-12 | 深圳市星汉激光科技股份有限公司 | Optical fiber beam combining structure and manufacturing method thereof |
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Application publication date: 20190402 |