CN102219398A - Clamp used for uniformly evaporating anti-reflection film on side surface of optical fiber - Google Patents
Clamp used for uniformly evaporating anti-reflection film on side surface of optical fiber Download PDFInfo
- Publication number
- CN102219398A CN102219398A CN 201110062132 CN201110062132A CN102219398A CN 102219398 A CN102219398 A CN 102219398A CN 201110062132 CN201110062132 CN 201110062132 CN 201110062132 A CN201110062132 A CN 201110062132A CN 102219398 A CN102219398 A CN 102219398A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- anchor clamps
- reflection film
- half part
- coating
- 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.)
- Granted
Links
Images
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a clamp used for uniformly evaporating an anti-reflection film on the side surface of optical fiber, comprising an upper half part and a lower half part. The optical fiber clamped by the clamp rotates by adopting the mode of the combination of revolution and rotation in the coating process, wherein the upper half part is connected with a rotating part of a coating machine, and the rotating part of the coating machine drives the upper half part to rotate, so that the optical fiber clamped by the side surface of the upper half part rotates surrounding the center of the clamp so as to form the revolution; and the lower half part is connected with a body of the coating machine, and keeps still when the upper half part rotates, a gear track on the surface of the lower half part forces a part of the upper half part for clamping the optical fiber rotates synchronously when rotating along with the upper half part so as to form the rotation. By utilizing the clamp, the reflection of the optical fiber on the section of laser is reduced, the collimation rate of the optical fiber on a laser is improved, and the reliability of the laser is improved. Simultaneously, the clamp also can be used for coating on the side walls of other columnar objects, and has wide application values.
Description
Technical field
The present invention relates to semiconductor laser field, especially a kind of anchor clamps that are used at the even evaporation anti-reflection film of optical fiber side.
Background technology
Semiconductor laser has been obtained in a lot of fields at present very widely and has been used, and especially high-power LD is widely used, and has the active day by day impetus.In many Application Areass of laser technology, beam quality is most important.In the pumping of optical fiber laser, numerical aperture after requiring pump light to assemble and focus spot size be respectively less than the numerical aperture and the core diameter of doubly clad optical fiber inner cladding, otherwise can cause the loss of pump energy.Equally, on the end pumping of laser crystal bar, for improving pumping efficiency and realizing mould coupling preferably, usually heavy pumping is carried out in the zonule of crystal end-face, so also need pump light is focused on the hot spot that becomes hundreds of microns of diameters.And use for materials processing and laser medicine, it is a requirement the most basic that LD is focused into the round dot that is symmetrically distributed as far as possible.At optical Information Processing, storage and record, all there is higher requirement application scenarios such as lidar to beam quality equally.Laser beam quality not only influences the overall performance of laser apparatus greatly, also influences the application level of laser technology greatly.
But the light beam of semiconductor laser has the characteristics that much are different from other laser apparatus, for example the angle of divergence is bigger, and, make the overwhelming majority of semiconductor laser use and to utilize optical system that it is carried out beam shaping vertical and to be parallel to the junction plane both direction inconsistent.And high-power LD array is made of a plurality of laser emission elements (each unit is equivalent to a semiconductor laser) especially, as shown in Figure 1.Because the influence of asymmetrical beam waveguide, the light beam of each laser apparatus output is perpendicular to junction plane direction (fast axle) be parallel to the bigger difference of junction plane direction (slow axis) appearance, 1), a transmitter unit is very little at the quick shaft direction Source size mainly comprises:, be about 1 μ m, and very big at the slow-axis direction Source size, hundreds of approximately μ m; 2), both direction with a tight waist not on same position, promptly have intrinsic astigmatism; 3), both direction has bigger and the asymmetric angle of divergence, especially the quick shaft direction angle of divergence is generally at 20 °～40 °, maximum in addition can reach 60 ° big, had a strong impact on the application of its output beam, so noise spectra of semiconductor lasers is carried out fast axis collimation and had great importance before using.
In order to improve the beam quality of semiconductor laser, people one of the method for normal employing for realize the collimation of semiconductor laser quick shaft direction light beam as microcylindrical lens with one section optical fiber, as shown in Figure 2, this method realize easily, cheap and can satisfy multiple service requirements.
But because the specific refractory power of optical fiber itself is not 1, semiconductor laser incides optical fiber surface, because the refringence of optical fiber and air is seen formula 1,
n
0, n
2Be respectively the specific refractory power of air and optical fiber, R is the reflection coefficient of optical fiber.The specific refractory power of general silica fibre is 1.458, air refraction is 1, reflectivity just is 3.5%, this will cause a part of semiconductor laser to reflex to laser cavity surface from optical fiber surface, not only influence the collimation efficient of semiconductor laser, and cause the laser apparatus damage easily, influence the life-span and the reliability of laser apparatus.
For this reason, evaporation anti-reflection film on fiber sidewall, it is significant to the reflectivity of laser to reduce optical fiber, the present invention is exactly that coating clamp by special making guarantees that the fiber sidewall plated film is even in the coating equipment, thereby reduce the emittance of optical fiber, improve the collimation efficient of semiconductor laser laser.
Summary of the invention
(1) technical problem that will solve
Optical fiber coating clamp of the present invention is a kind of anchor clamps that are used at the even evaporation anti-reflection film of optical fiber side, and can be applied to other column sidewall plated films, the technical problem underlying that is solved is: provide a kind of simply, optical fiber coating clamp reliably, solve collimation with the low problem of optical fiber laser transmittance.
(2) technical scheme
For achieving the above object, the invention provides a kind of anchor clamps that are used at the even evaporation anti-reflection film of optical fiber side, these anchor clamps comprise upper part and lower part, rotated by the form that the optical fiber of this anchor clamps clamping adopts revolution to combine with rotation in coating process, wherein: this upper part is connected with the turning unit of coating equipment, turning unit by coating equipment drives this upper part rotation, and the optical fiber of this upper part side clamping is rotated around this anchor clamps center, forms revolution; This lower part is connected with the body of coating equipment, when rotating, this upper part keeps motionless, the parts that forced grip optical fiber in this upper part by the gear track on this lower part surface self synchronous rotation when rotating with this upper part forms rotation.
In the such scheme, the medial surface of this upper part has the parts of grip optical fiber, and these parts have a centre hole, come the clamping different diameter fibers by the size of adjusting this centre hole.
In the such scheme, the outer side of this upper part has a hole, and this hole and described centre hole pass through to make optical fiber maintenance level in coating process on the radial line in the anchor clamps center of circle at one.
In the such scheme, the material that these anchor clamps adopt is a stainless steel.
In the such scheme, lubricating oil or oiliness lubricating substance are not all used in the junction of these anchor clamps.
In the such scheme, these anchor clamps will guarantee the level of this lower part in installation process, and by adjusting cooperating between these anchor clamps and coating equipment and this upper part and lower part, guarantee the smoothness when this upper part is rotated on this lower part.
(3) beneficial effect
This anchor clamps that are used at the even evaporation anti-reflection film of optical fiber side provided by the invention, on evaporation on the fiber sidewall at the anti-reflection film of a certain wave band, thereby reduced the reflection of optical fiber, improved the collimation efficient of optical fiber, improved the reliability of laser apparatus laser apparatus to this wave band of laser.Simultaneously, this coating clamp also can be used for the sidewall plated film of other column objects, is with a wide range of applications.
Description of drawings
For further specifying concrete technology contents of the present invention, below in conjunction with accompanying drawing describe in detail as after, wherein:
Fig. 1 is high-power LD array light beam synoptic diagram;
Fig. 2 is the fiber optic collimator index path;
Fig. 3 is the synoptic diagram that is used in anchor clamps upper part of the even evaporation anti-reflection film of optical fiber side provided by the invention, this upper part is connected with the turning unit of coating equipment, turning unit by coating equipment drives its rotation, the parts of its side grip optical fiber rotate around the anchor clamps center like this, form revolution;
Fig. 4 is the synoptic diagram that is used in anchor clamps lower part of the even evaporation anti-reflection film of optical fiber side provided by the invention, this lower part is connected with the body of coating equipment, when anchor clamps upper part is rotated, keep motionless, the parts that forced grip optical fiber in anchor clamps upper part by its surperficial gear track himself synchronous rotation when rotating with anchor clamps upper part forms rotation;
Fig. 5 synoptic diagram that is used at the anchor clamps of the even evaporation anti-reflection film of optical fiber side provided by the invention;
Fig. 6 is the partial enlarged drawing of coating clamp upper part and interlock place of lower part gear track, also is the enlarged view of the parts of coating clamp upper part side grip optical fiber simultaneously, and the centre hole that its dependence can be regulated size comes grip optical fiber.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
In order to realize the even of fiber sidewall plated film, every optical fiber must be around its axle center uniform rotation in the process of evaporation in requirement, and, in the process of evaporation, also require optical fiber to rotate the homogeneity that guarantees its rete around the center of film plating frame because the plated film speed of the interior different positions of plated film cavity is different.
As shown in Figure 5, the anchor clamps that are used at the even evaporation anti-reflection film of optical fiber side provided by the invention, comprise upper part and lower part, rotated by the form that the optical fiber of this anchor clamps clamping adopts revolution to combine with rotation in coating process, wherein: this upper part is connected with the turning unit of coating equipment, drives this upper part by the turning unit of coating equipment and rotates, and the optical fiber of this upper part side clamping is rotated around this anchor clamps center, form revolution, as shown in Figure 3; This lower part is connected with the body of coating equipment, when rotating, this upper part keeps motionless, the parts that forced grip optical fiber in this upper part by the gear track on this lower part surface self synchronous rotation when rotating with this upper part forms rotation, as shown in Figure 4.
Wherein, as shown in Figure 6, the medial surface of this upper part has the parts of grip optical fiber, and these parts have a centre hole, come the clamping different diameter fibers by the size of adjusting this centre hole.The outer side of this upper part has a hole, and this hole and described centre hole pass through to make optical fiber maintenance level in coating process on the radial line in the anchor clamps center of circle at one.
The anchor clamps that are used at the even evaporation anti-reflection film of optical fiber side provided by the invention, the material that adopts be stainless steel or corresponding in high vacuum the little material of discharge quantity, lubricating oil or oiliness lubricating substance are not all used in rotating element or all the other junctions in these anchor clamps, these anchor clamps will guarantee the level of this lower part in installation process, and, guarantee the smoothness when this upper part is rotated on this lower part by adjusting cooperating between these anchor clamps and coating equipment and this upper part and lower part.
The anchor clamps that are used at the even evaporation anti-reflection film of optical fiber side provided by the invention, optical fiber both can move in a circle around the anchor clamps center in coating process, and himself also can rotate, and promptly the mode of motion of optical fiber in coating process is the combining form of revolution with rotation.Upper part of these anchor clamps is connected with the turning unit of coating equipment by union lever, union lever one end is fixed by nut and this anchor clamps, the other end directly is connected with the rotating disk of coating equipment, turning unit by coating equipment drives the coating clamp rotation like this, the optical fiber of anchor clamps sidewall clamping is just rotating around the anchor clamps center like this, forms revolution.The parts of anchor clamps upper part side grip optical fiber can be adjusted the centre hole size arbitrarily to adapt to different diameter fibers or other columns.The centre hole of the hole in the outside of anchor clamps upper part and inboard grip optical fiber parts passes through to make optical fiber maintenance level in coating process on the radial line in the anchor clamps center of circle at one.
Lower part of coating clamp is connected with the body of coating equipment, crystal oscillator dish by screw-nut and coating equipment is fixed, its maintenance is motionless when anchor clamps upper part is rotated like this, and force the parts of grip optical fiber in anchor clamps upper part when rotating, self to form rotation by its surperficial gear track also in synchronous rotation with anchor clamps upper part.
Coating clamp will keep the level of anchor clamps lower part and by adjusting the smoothness when cooperating between anchor clamps and coating equipment and anchor clamps top and the bottom guaranteeing that anchor clamps upper part is rotated on lower part in installation process.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. anchor clamps that are used at the even evaporation anti-reflection film of optical fiber side is characterized in that, these anchor clamps comprise upper part and lower part, rotated by the form that the optical fiber of this anchor clamps clamping adopts revolution to combine with rotation in coating process, wherein:
This upper part is connected with the turning unit of coating equipment, drives this upper part by the turning unit of coating equipment and rotates, and the optical fiber of this upper part side clamping is rotated around this anchor clamps center, forms revolution;
This lower part is connected with the body of coating equipment, when rotating, this upper part keeps motionless, the parts that forced grip optical fiber in this upper part by the gear track on this lower part surface self synchronous rotation when rotating with this upper part forms rotation.
2. the anchor clamps that are used at the even evaporation anti-reflection film of optical fiber side according to claim 1, it is characterized in that, the medial surface of this upper part has the parts of grip optical fiber, and these parts have a centre hole, comes the clamping different diameter fibers by the size of adjusting this centre hole.
3. the anchor clamps that are used at the even evaporation anti-reflection film of optical fiber side according to claim 2, it is characterized in that, the outer side of this upper part has a hole, and this hole and described centre hole pass through to make optical fiber maintenance level in coating process on the radial line in the anchor clamps center of circle at one.
4. the anchor clamps that are used at the even evaporation anti-reflection film of optical fiber side according to claim 1 is characterized in that, the material that these anchor clamps adopt is a stainless steel.
5. the anchor clamps that are used at the even evaporation anti-reflection film of optical fiber side according to claim 1 is characterized in that, lubricating oil or oiliness lubricating substance are not all used in the junction of these anchor clamps.
6. the anchor clamps that are used at the even evaporation anti-reflection film of optical fiber side according to claim 1, it is characterized in that, these anchor clamps will guarantee the level of this lower part in installation process, and, guarantee the smoothness when this upper part is rotated on this lower part by adjusting cooperating between these anchor clamps and coating equipment and this upper part and lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110062132 CN102219398B (en) | 2011-03-15 | 2011-03-15 | Clamp used for uniformly evaporating anti-reflection film on side surface of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110062132 CN102219398B (en) | 2011-03-15 | 2011-03-15 | Clamp used for uniformly evaporating anti-reflection film on side surface of optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102219398A true CN102219398A (en) | 2011-10-19 |
| CN102219398B CN102219398B (en) | 2013-06-19 |
Family
ID=44776141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110062132 Expired - Fee Related CN102219398B (en) | 2011-03-15 | 2011-03-15 | Clamp used for uniformly evaporating anti-reflection film on side surface of optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102219398B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106319472A (en) * | 2016-10-27 | 2017-01-11 | 中国电子科技集团公司第十三研究所 | Fiber arc surface film coating fixture and using method |
| CN109536911A (en) * | 2018-12-26 | 2019-03-29 | 北京航空航天大学 | A kind of device for optical fiber side plated film |
| CN110791743A (en) * | 2019-12-09 | 2020-02-14 | 中国工程物理研究院总体工程研究所 | Long optical fiber sensing device film coating tool and film coating method |
| CN110803874A (en) * | 2019-11-22 | 2020-02-18 | 陶煜晨 | Optical fiber spiral line color bar coloring device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200943099Y (en) * | 2006-08-22 | 2007-09-05 | 刘占友 | Electric heating film coater |
| CN101230449A (en) * | 2007-01-23 | 2008-07-30 | 环宇真空科技股份有限公司 | Instrument putting method for cutting tool film-plating process |
| CN201116306Y (en) * | 2007-10-24 | 2008-09-17 | 钰衡科技股份有限公司 | Self-rotation carrier for continuous film-plating equipment |
| CN101311297A (en) * | 2008-03-12 | 2008-11-26 | 兰州大成自动化工程有限公司 | Three-dimensional revolving gear of workpieces of vacuum film coating equipment |
| CN101407906A (en) * | 2008-10-20 | 2009-04-15 | 舟山市汉邦机械科技有限公司 | Vacuum film plating apparatus |
| CN101634011A (en) * | 2008-07-21 | 2010-01-27 | 中国科学院宁波材料技术与工程研究所 | Magnetic control sputtering device and method for uniformly coating film on outer surface of workpiece |
-
2011
- 2011-03-15 CN CN 201110062132 patent/CN102219398B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200943099Y (en) * | 2006-08-22 | 2007-09-05 | 刘占友 | Electric heating film coater |
| CN101230449A (en) * | 2007-01-23 | 2008-07-30 | 环宇真空科技股份有限公司 | Instrument putting method for cutting tool film-plating process |
| CN201116306Y (en) * | 2007-10-24 | 2008-09-17 | 钰衡科技股份有限公司 | Self-rotation carrier for continuous film-plating equipment |
| CN101311297A (en) * | 2008-03-12 | 2008-11-26 | 兰州大成自动化工程有限公司 | Three-dimensional revolving gear of workpieces of vacuum film coating equipment |
| CN101634011A (en) * | 2008-07-21 | 2010-01-27 | 中国科学院宁波材料技术与工程研究所 | Magnetic control sputtering device and method for uniformly coating film on outer surface of workpiece |
| CN101407906A (en) * | 2008-10-20 | 2009-04-15 | 舟山市汉邦机械科技有限公司 | Vacuum film plating apparatus |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106319472A (en) * | 2016-10-27 | 2017-01-11 | 中国电子科技集团公司第十三研究所 | Fiber arc surface film coating fixture and using method |
| CN106319472B (en) * | 2016-10-27 | 2019-04-09 | 中国电子科技集团公司第十三研究所 | Optical fiber arc surface coating clamp and application method |
| CN109536911A (en) * | 2018-12-26 | 2019-03-29 | 北京航空航天大学 | A kind of device for optical fiber side plated film |
| CN110803874A (en) * | 2019-11-22 | 2020-02-18 | 陶煜晨 | Optical fiber spiral line color bar coloring device |
| CN110803874B (en) * | 2019-11-22 | 2021-11-26 | 常熟白莲光电科技有限公司 | Optical fiber spiral line color bar coloring device |
| CN110791743A (en) * | 2019-12-09 | 2020-02-14 | 中国工程物理研究院总体工程研究所 | Long optical fiber sensing device film coating tool and film coating method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102219398B (en) | 2013-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102219398B (en) | Clamp used for uniformly evaporating anti-reflection film on side surface of optical fiber | |
| CN103594918B (en) | A kind of method and apparatus exporting hollow laser beam | |
| Huang et al. | A novel prism beam-shaping laser diode bar end-pumped TEM 00 mode Nd: YVO 4 laser | |
| CN201166741Y (en) | Apparatus for implementing semiconductor laser array collimating shape through fibre-optical pillar lens | |
| CN109256670B (en) | A kind of hollow laser of Great Dark Spot based on gyrotropi crystal circular cone continuous rotation polarization | |
| CN100468892C (en) | Inside self-organizing synchronous-phase excited coherent combining laser device | |
| CN203101668U (en) | Dodging lens, dodging laser light source and optical system used for shaping semiconductor laser beam | |
| CN109167248B (en) | A kind of non-homogeneous cross-polarization hollow ring laser | |
| CN204065464U (en) | The online optoisolator of a kind of liquid cooling hectowatt grade multimode optical fiber | |
| CN109510056B (en) | A kind of while output the hollow laser of dual wavelength | |
| CN108512027B (en) | Annular cavity amplifying device for picosecond seed laser pulse | |
| CN104577681A (en) | Axial cone, optical resonator and laser device | |
| CN102208740A (en) | Nanosecond pulse fiber laser with circle structure | |
| CN207043552U (en) | A kind of compound collimation focusing system | |
| CN2754113Y (en) | Semiconductor laser optical beam shaping unit | |
| CN109659803B (en) | high-polarization-purity polarization-direction-adjustable rotationally-symmetric polarization hollow laser | |
| CN100490262C (en) | High power dual-cladding fiber laser end-pumped method and device | |
| CN103176281A (en) | High-power laser spatial filter and manufacture method thereof | |
| CN203631974U (en) | High-power semiconductor laser light source system based on polarization rotation beam combination | |
| CN103107479B (en) | 2.9 mu m intermediate infrared solid-state laser based on automatic Raman pump | |
| CN102044836A (en) | Microchip laser capable of tuning output pulse width | |
| CN2490598Y (en) | Semiconductor laser beam changing device | |
| CN206161897U (en) | A feedback optical isolator for full fiber laser of high power | |
| CN109870823B (en) | Polarized light intensity shaping device | |
| CN219321802U (en) | Ultraviolet laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20140315 |