CN2345987Y - Laser optical fiber coupling device - Google Patents
Laser optical fiber coupling device Download PDFInfo
- Publication number
- CN2345987Y CN2345987Y CN 98233265 CN98233265U CN2345987Y CN 2345987 Y CN2345987 Y CN 2345987Y CN 98233265 CN98233265 CN 98233265 CN 98233265 U CN98233265 U CN 98233265U CN 2345987 Y CN2345987 Y CN 2345987Y
- Authority
- CN
- China
- Prior art keywords
- adjustment rack
- plano
- coupling
- concave lens
- light
- 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.)
- Expired - Fee Related
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 29
- 238000010168 coupling process Methods 0.000 title claims abstract description 29
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 29
- 239000013307 optical fiber Substances 0.000 title abstract description 10
- 239000000835 fiber Substances 0.000 claims description 23
- 230000003287 optical effect Effects 0.000 claims description 7
- 230000003667 anti-reflective effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 241000931526 Acer campestre Species 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- Optical Couplings Of Light Guides (AREA)
Abstract
A laser optical fiber coupling device is characterized in that two diaphragms are used on the same axis in front of a three-dimensional precision adjusting frame with an optical fiber clamp to adjust the collimation coaxiality of a coupling light beam, and then a plano-concave lens and a microscope objective lens are used for realizing the coupling of the laser light beam and a single-mode optical fiber, so that the adjusting precision is improved, the coupling efficiency and the stability are greatly improved, meanwhile, the adjusting method is greatly simplified, and the device is suitable for the coupling between various laser beams and optical fibers.
Description
The utility model is the improvement of laser couplers structure, belongs to laser technology field.
No matter be laser instrument optical fiber output, or use the semiconductor laser pumping fiber laser, all have the coupling of space laser and single-mode fiber, this coupling has not only required high precision and high coupling efficiency, but also should have the convenience and the stability of adjusting.Be to rely on a three-dimensional accurate adjustment rack that has fiber clamp is set on the base finishes coupling in the prior art, it is to adapt to space laser by adjusting optical fiber, because this device is too simple, and require three-dimensional trim holder very accurate, it is adjusted the operation utmost point and is not easy to grasp, be inconvenient to by rule of thumb entirely adjust, not only influential to coupling efficiency and precision, and also stability does not ensure yet.
The purpose of this utility model is to provide a kind of laser fiber coupling device, makes it to finish the coupling between laser beam and the single-mode fiber, has efficient coupling, precision height, adjusts advantage easy, good stability.
The structure of the laser fiber coupling device that the utility model is designed is, is provided with two-dimentional adjustment rack at the front end of the same axis of base, and the rear end is provided with the three-dimensional accurate adjustment rack of fiber clamp; The front end of two dimension adjustment rack is connected and fixed frame for the two-dimensional adjustable part, and it can distinguish cylindrical smooth hurdle of active connection and plano-concave lens, and the rear end of two-dimentional adjustment rack is non-adjustable and is connected and fixed frame that it can distinguish active connection half-cylindrical light hurdle and microcobjective camera lens.Its each part and two-dimentional adjustment rack be active to be connected to adopt and to be threaded; Be shaped on optical anti-reflective film on the plano-concave lens surface.
Because the designed laser fiber coupling device of the utility model uses the same axial adjustment on two light hurdles to realize that the collimation of coupled light beam is coaxial, the same axial adjustment of coupled light beam is simplified and accurately; And realize the coupling of laser beam and single-mode fiber with the compound lens that plano-concave lens and microcobjective camera lens constitute, adjustment with lens reduces the accurate accuracy requirement of adjusting of machinery, designed laser fiber coupling device has the coupling efficiency height, adjustment is simple, precision is high, the advantage of good stability thereby make, and it is applicable to the coupling between various laser beam and the optical fiber.
Accompanying drawing is the structural representation of the designed laser fiber coupling device of the utility model, and 1 is cylindrical smooth hurdle among the figure, and 2 is plano-concave lens, and 3 is two-dimentional adjustment rack, 4 is half-cylindrical light hurdle, and 5 is the microcobjective camera lens, and 6 is fiber clamp, 7 is single-mode fiber, and 8 is base, and 9 is three-dimensional accurate adjustment rack.
Describe use of the present utility model and result of use in detail below in conjunction with accompanying drawing.
Referring to accompanying drawing, the laser fiber coupling device that the utility model is designed install and use for, fixedly install two-dimentional adjustment rack and have the three-dimensional accurate adjustment rack of fiber clamp at same base, and make two adjustment racks coaxial; Cylindrical smooth hurdle is connected in the two-dimensional adjustable connection box with screw thread at two-dimentional adjustment rack front end, with screw thread half-cylindrical light hurdle is connected in the fixed frame in two-dimentional adjustment rack rear end; Utilize spatial beam to observe by semicolumn light hurdle breach, adjusting two-dimentional adjustment rack makes two light hurdles coaxial, and make the light beam that passes through coaxial with the optical fiber head collimation, again two light hurdles are taken off respectively, install connection plano-concave lens and microcobjective camera lens respectively in its relevant position, adjust three-dimensional trim holder and make the focal position of single-mode fiber head at the microscope camera lens, two dimension is adjusted the plano-concave mirror again, promptly finishes the efficient coupling of space laser and single-mode fiber.Its coupling efficiency can reach more than 60%.The isoparametric selection of its focal length of plano-concave lens and microcobjective in the designed coupling device should adapt with optical maser wavelength and optical fiber core diameter, and the optical anti-reflective film on same plano-concave lens surface also adapts with optical maser wavelength.
According to the principle of optical imagery, be f at the focal length of plano-concave lens
1, the microcobjective camera lens focal length be f
2The time, if f
1/ f
2=K, the variable quantity of its image point displacement is directly proportional with K, when the precision that promptly can require three-dimensional machinery to adjust reduces K times, still can reach the coupling effect of prior art, in other words, if make the three-dimensional machinery adjustment reach original accuracy requirement, then can improve K doubly when using the utility model than original precision.Though reduce the adjustment accuracy requirement of mechanical system like this by the method for optical imagery, the overall precision of device is improved, so coupling efficiency is improved, stability is greatly increased, method of adjustment is also greatly simplified simultaneously.
Claims (3)
1. laser fiber coupling device, it adopts base, have the three-dimensional accurate adjustment rack of fiber clamp, two-dimentional adjustment rack, cylindrical and half-cylindrical light hurdle, plano-concave lens and microcobjective camera lens, it is characterized in that, front end at the same axis of base is provided with two-dimentional adjustment rack, and the rear end is provided with the three-dimensional accurate adjustment rack of fiber clamp; The front end of two dimension adjustment rack is connected and fixed frame for the two-dimensional adjustable part, and it can distinguish cylindrical smooth hurdle of active connection and plano-concave lens; The rear end of two dimension adjustment rack is non-adjustable and is connected and fixed frame that it can distinguish active connection half-cylindrical light hurdle and microcobjective camera lens.
2. device according to claim 1, it is characterized in that, the structure of described device is used, cylindrical smooth hurdle is connected in the two-dimensional adjustable connection box with screw thread at two-dimentional adjustment rack front end earlier, semicolumn light hurdle is connected in the dried fixed frame with screw thread in two-dimentional adjustment rack rear end, adjustment makes two light hurdles coaxial and coaxial with light bore bit collimation, again two light hurdles are taken off respectively, install connection plano-concave lens and microcobjective camera lens respectively in its relevant position, adjustment makes the focal position of single-mode fiber at microcobjective, two dimension is adjusted plano-concave lens again, promptly finishes the coupling of space laser and single-mode fiber.
3. device according to claim 2 is characterized in that the surface of described plano-concave lens is shaped on optical anti-reflective film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98233265 CN2345987Y (en) | 1998-12-21 | 1998-12-21 | Laser optical fiber coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98233265 CN2345987Y (en) | 1998-12-21 | 1998-12-21 | Laser optical fiber coupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2345987Y true CN2345987Y (en) | 1999-10-27 |
Family
ID=33982042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98233265 Expired - Fee Related CN2345987Y (en) | 1998-12-21 | 1998-12-21 | Laser optical fiber coupling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2345987Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672639A (en) * | 2012-05-18 | 2012-09-19 | 江苏格雷特机器人有限公司 | Clamp special for manufacturing optical fiber connector |
| CN102736190A (en) * | 2011-06-27 | 2012-10-17 | 成都新易盛通信技术有限公司 | Efficient coupling clamp |
| CN107931839A (en) * | 2017-12-20 | 2018-04-20 | 何琼 | A kind of power battery explosion protection valve laser welding apparatus |
| CN110873931A (en) * | 2018-08-29 | 2020-03-10 | 中国科学院上海光学精密机械研究所 | Space light and optical fiber optical coupling device and method with stable optical axis of position-free detector |
| CN116203677A (en) * | 2023-04-27 | 2023-06-02 | 鹏城实验室 | Optical antenna array element adjustment system and method |
| CN117250694A (en) * | 2023-11-17 | 2023-12-19 | 鹏城实验室 | Optical fiber coupling adjustment system and adjustment method |
-
1998
- 1998-12-21 CN CN 98233265 patent/CN2345987Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102736190A (en) * | 2011-06-27 | 2012-10-17 | 成都新易盛通信技术有限公司 | Efficient coupling clamp |
| CN102672639A (en) * | 2012-05-18 | 2012-09-19 | 江苏格雷特机器人有限公司 | Clamp special for manufacturing optical fiber connector |
| CN107931839A (en) * | 2017-12-20 | 2018-04-20 | 何琼 | A kind of power battery explosion protection valve laser welding apparatus |
| CN110873931A (en) * | 2018-08-29 | 2020-03-10 | 中国科学院上海光学精密机械研究所 | Space light and optical fiber optical coupling device and method with stable optical axis of position-free detector |
| CN110873931B (en) * | 2018-08-29 | 2022-04-05 | 中国科学院上海光学精密机械研究所 | Space light and optical fiber optical coupling device and method with stable optical axis of position-free detector |
| CN116203677A (en) * | 2023-04-27 | 2023-06-02 | 鹏城实验室 | Optical antenna array element adjustment system and method |
| CN117250694A (en) * | 2023-11-17 | 2023-12-19 | 鹏城实验室 | Optical fiber coupling adjustment system and adjustment method |
| CN117250694B (en) * | 2023-11-17 | 2024-02-13 | 鹏城实验室 | Optical fiber coupling adjustment system and adjustment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |