CN2371568Y - Laser optical fibre coupler - Google Patents
Laser optical fibre coupler Download PDFInfo
- Publication number
- CN2371568Y CN2371568Y CN 99227472 CN99227472U CN2371568Y CN 2371568 Y CN2371568 Y CN 2371568Y CN 99227472 CN99227472 CN 99227472 CN 99227472 U CN99227472 U CN 99227472U CN 2371568 Y CN2371568 Y CN 2371568Y
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- CN
- China
- Prior art keywords
- optical fiber
- laser
- utility
- coupling body
- model
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- Expired - Lifetime
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Abstract
The utility model relates to a laser optical fibre coupler which belongs to a laser optical fibre coupling device. The inner of an optical fiber coupling body of the utility model is provided with a collector lens, and the end part of the coupling body is provided with a light transmitting optical fiber interface. When light transmitting optical fiber is inserted into the optical fiber interface through a needle inserting body, and the center of a circle on the end face of the light transmitting optical fiber is just coincident with the focus point of the collector lens. The optical fiber coupling rate of the utility model can reach 80 to 90 percents, and the utility model has the advantages of good universality and strong interchange ability; the utility model is mainly used by matching with a YAG laser.
Description
Laser optical fibre coupler belongs to high power laser (YAG laser) fiber coupling device.
Laser optical fibre coupler is the light-conducting system between laser generator and the laser application element thereof, and its major function is the laser energy that will produce in the laser generator, is coupled in the Transmission Fibers to greatest extent and goes.
Along with the fast development of laser technology, the application of YAG laser more and more is subjected to people's attention.Industrial, aspects such as various welding, cutting, punching, quarter are poor, surface treatment that it is used for have unique advantage.At medical field, the clinical practice of laser surgery reaches its maturity especially with research.For example: in the sixties, West Germany just utilizes YAG laser successfully to excise the stomach internal aneurysm.The seventies, the U.S. utilizes YAG laser to carry out human liver's bloodless operation.At present, China YAG laser machine had formed tandem product already, and was widely used in various aspects such as Laser Processing, laser medicine and laser surgery.Yet the laser optical fibre coupler that present China and laser machine match is but very backward.Versatility between the application element thereof of all size, interchangeability are very poor.When needs adjustment or replacing biography light optical fiber, can only carry out manual operations by the professional, not only operation easier is big for it; and optical coupling efficiency is poor; approximately can only reach 40%-50%, influence the service property (quality) of YAG laser complete machine greatly, restrict applying of YAG laser machine.
The purpose of this utility model is: at the problem of above-mentioned existence, propose out a kind of laser optical fibre coupler, the beam collimation that it can carry out fiber-optic output automatically focuses on, and improves the coupling efficiency of fiber optic component greatly.Can solve versatility between the different size application element thereof and interchangeability problem on the laser machine.
Technical solution of the present utility model is as follows: it comprises adjusting bracket (1), collector lens (3) and biography light optical fiber (9), coupling body (4) is to be fixed on the coupling body interface (2) of adjusting bracket (1), in coupling body (4), be provided with a collector lens (3), be provided with one in the end of coupling body (4) and pass light optical fiber interface (5), the end that passes light optical fiber (9) is provided with contact pin body (7), collector lens (3) can make incident laser focus on the P point, the P point should be arranged on the center of circle of contact pin body (7) biography light fiber end face just, and contact pin body (7) is connected with coupling body (4) by passing light optical fiber interface (5).Nut (6) is used for being connected coupling body interface (2) respectively and passes light optical fiber interface (5) with contact pin body web member (8).Obviously, when contact pin body (7) inserts in the biography light optical fiber interface (5), the central point that passes light optical fiber (9) end face should overlap with the focus point P of laser generator (15) emitted laser just, like this, incident laser energy can be coupled in the biography light optical fiber (9) to greatest extent go.Ground meticulously, polished owing to pass the end face of light optical fiber (9), surfacing is bright and clean, is again to be inserted in the interface during use, so in use its end face can be not contaminated.These factors all help improving the coupling efficiency that passes light optical fiber.Though it is multiple that the specification of biography light optical fiber core diameter has, and all can be made into standard component based on its contact pin body (7) and optical fiber interface (5), so just solved versatility and the interchangeability problem between the laser machine different size application element thereof.
This laser optical fibre coupler also is provided with an adjustable plate (11) and adjusting screw (12) on the base (10) of adjusting bracket (1), locating device (13) and elastic device (14) are arranged between adjustable plate (11) and the base (10), and adjusting bracket (1) is fixed on the adjustable plate (11).By the setting of this adjustable plate, increased regulatory function to adjusting bracket (1) pitch position, help the quick coupling of optical fiber.
The laser optical fibre coupler that adopts the utility model scheme to make, optical fiber coupling fast speed is fast, efficient is high, and coupling efficiency can reach 80-90%; Fiber optic universal is good, interchangeability is strong, and is applied widely, long service life; Improved the usability of laser complete machine greatly.
Fig. 1 is a structural representation of the present utility model.
Below in conjunction with embodiment, the utility model is described in further detail.
The mounting hole of adjusting bracket (1) is 85 * 40, coupling body interface (2) Ф 8, and collector lens (3) Ф 15, radius of curvature R=14.5, material is a K9 glass, and the laser pick-off stomidium of coupling body (4) directly is Ф 10, and coupling body (4) adopts brass to make chrome-faced.Select for use the silica fibre of Ф 0.6 core diameter to be fixed on the center of contact pin body (7), determine the P point with standard fiber and laser powermeter.Make contact pin body (7) and pass light optical fiber interface (5) by the SMA905 standard size.This laser optical fibre coupler coupling efficiency surpasses more than 85%.
Claims (2)
1, laser optical fibre coupler, it comprises adjusting bracket (1), collector lens (3) and biography light optical fiber (9), it is characterized in that: coupling body (4) is to be fixed on the coupling body interface (2) of adjusting bracket (1), in coupling body (4), be provided with a collector lens (3), be provided with one in the end of coupling body (4) and pass light optical fiber interface (5), the end that passes light optical fiber (9) is provided with contact pin body (7), collector lens (3) can make incident laser focus on the P point, the P point should be arranged on the center of circle of contact pin body (7) biography light fiber end face just, and contact pin body (7) is connected with coupling body (4) by passing light optical fiber interface (5).
2, laser optical fibre coupler according to claim 1, it is characterized in that: on the base (10) of adjusting bracket (1), be provided with an adjustable plate (11) and adjusting screw (12), locating device (13) and elastic device (14) are arranged between adjustable plate (11) and the base (10), and adjusting bracket (1) is fixed on the adjustable plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99227472 CN2371568Y (en) | 1999-03-12 | 1999-03-12 | Laser optical fibre coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99227472 CN2371568Y (en) | 1999-03-12 | 1999-03-12 | Laser optical fibre coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2371568Y true CN2371568Y (en) | 2000-03-29 |
Family
ID=34016980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99227472 Expired - Lifetime CN2371568Y (en) | 1999-03-12 | 1999-03-12 | Laser optical fibre coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2371568Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293401C (en) * | 2004-05-25 | 2007-01-03 | 长春理工大学 | Hollow circular truncated cone laser optical fibre coupler |
| CN100360968C (en) * | 2005-12-22 | 2008-01-09 | 武汉楚天激光（集团）股份有限公司 | Optical fiber coupling device |
| CN100432727C (en) * | 2004-01-28 | 2008-11-12 | 株式会社东芝 | Laser beam incident optical device |
| CN106291837A (en) * | 2016-03-11 | 2017-01-04 | 上海瑞柯恩激光技术有限公司 | Laser beam coupling detection debugging structure and detection adjustment method |
| CN108681085A (en) * | 2018-05-03 | 2018-10-19 | 北京工业大学 | Universal excimer pulsed laser beam converging device |
| CN112705849A (en) * | 2021-01-13 | 2021-04-27 | 广东海洋大学 | Laser welding device and method for optical fiber and insertion needle body |
-
1999
- 1999-03-12 CN CN 99227472 patent/CN2371568Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432727C (en) * | 2004-01-28 | 2008-11-12 | 株式会社东芝 | Laser beam incident optical device |
| CN1293401C (en) * | 2004-05-25 | 2007-01-03 | 长春理工大学 | Hollow circular truncated cone laser optical fibre coupler |
| CN100360968C (en) * | 2005-12-22 | 2008-01-09 | 武汉楚天激光（集团）股份有限公司 | Optical fiber coupling device |
| CN106291837A (en) * | 2016-03-11 | 2017-01-04 | 上海瑞柯恩激光技术有限公司 | Laser beam coupling detection debugging structure and detection adjustment method |
| CN106291837B (en) * | 2016-03-11 | 2018-08-10 | 上海瑞柯恩激光技术有限公司 | Laser beam coupling detection debugging structure and detection adjustment method |
| CN108681085A (en) * | 2018-05-03 | 2018-10-19 | 北京工业大学 | Universal excimer pulsed laser beam converging device |
| CN112705849A (en) * | 2021-01-13 | 2021-04-27 | 广东海洋大学 | Laser welding device and method for optical fiber and insertion needle body |
| CN112705849B (en) * | 2021-01-13 | 2024-03-15 | 广东海洋大学 | Laser welding device and method for optical fiber and contact pin body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NANJING GLASS FIBRE RESEARCH AND DESIGN INSTITUTE Free format text: FORMER NAME OR ADDRESS: STATE BUREAU OF BUILDINGMATERIALS INDUSTRY NANJING GLASS FIBER RESEARCH DESIGN INSTITUTE |
|
| CP03 | Change of name, title or address |
Address after: 210012. 30, Delhi, Yuhuatai District, Nanjing Patentee after: Nanjing Design Inst of Glass Fibres Address before: 210012, No. 30, Xi An Road, Yuhua West Road, Jiangsu, Nanjing Patentee before: Nanjing Glass Fiber Research & Design Inst., State Bureau of Building Material I |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |