CN114114547B - An optical fiber isolator that is easy to install - Google Patents
An optical fiber isolator that is easy to install Download PDFInfo
- Publication number
- CN114114547B CN114114547B CN202111493009.7A CN202111493009A CN114114547B CN 114114547 B CN114114547 B CN 114114547B CN 202111493009 A CN202111493009 A CN 202111493009A CN 114114547 B CN114114547 B CN 114114547B
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- shell
- cam
- magnetic ring
- linear shaft
- 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.)
- Active
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 115
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 238000002955 isolation Methods 0.000 claims abstract description 34
- 230000003287 optical effect Effects 0.000 description 18
- 230000001105 regulatory effect Effects 0.000 description 18
- 239000011295 pitch Substances 0.000 description 12
- 230000033001 locomotion Effects 0.000 description 11
- 239000000835 fiber Substances 0.000 description 7
- 239000000428 dust Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- G02B6/27—Optical coupling means with polarisation selective and adjusting means
- G02B6/2746—Optical coupling means with polarisation selective and adjusting means comprising non-reciprocal devices, e.g. isolators, FRM, circulators, quasi-isolators
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
本发明公开一种便于安装的光纤隔离器，包括两端的入射光纤与出射光纤，靠近所述入射光纤的一端设置有第一壳体，靠近所述出射光纤的一端设置有第二壳体，所述第一壳体与所述第二壳体外层设置有用于连接所述第一壳体与所述第二壳体的连接件，所述第一壳体的内部设置有第一隔离腔，所述第二壳体的内部设置有连通所述第一隔离腔的第二隔离腔，所述第一隔离腔内设有磁环和第一光纤准直器，所述磁环中部设有调节块，所述调节块分割磁环中轴线，并调节光纤透光功率；所述入射光纤与第一光纤准直器连通；所述第二隔离腔内设有第二光纤准直器，所述出射光纤与第二光纤准直器连通。本发明通过调节块在磁环中轴线上自由上下移动而实现对光纤透光功率的调节。
The present invention discloses an optical fiber isolator that is easy to install, including an incident optical fiber and an output optical fiber at both ends, a first shell is provided near one end of the incident optical fiber, a second shell is provided near one end of the output optical fiber, a connector for connecting the first shell and the second shell is provided on the outer layer of the first shell and the second shell, a first isolation cavity is provided inside the first shell, a second isolation cavity connected to the first isolation cavity is provided inside the second shell, a magnetic ring and a first optical fiber collimator are provided in the first isolation cavity, an adjustment block is provided in the middle of the magnetic ring, the adjustment block divides the central axis of the magnetic ring and adjusts the optical fiber transmission power; the incident optical fiber is connected to the first optical fiber collimator; a second optical fiber collimator is provided in the second isolation cavity, and the output optical fiber is connected to the second optical fiber collimator. The present invention realizes the adjustment of the optical fiber transmission power by allowing the adjustment block to move freely up and down on the central axis of the magnetic ring.
Description
Technical Field
The invention belongs to the field of optical fiber equipment, and particularly relates to an optical fiber isolator convenient to install.
Background
At present, laser plays a great role in modern production and life due to high energy, high directionality and modulatability, and relates to a plurality of industries such as industrial manufacturing, medical treatment, communication and the like.
Because the self material of the optical fiber causes brillouin scattering when laser is transmitted in the optical fiber, or the laser receiving end generates reflection and other reasons to cause laser reflection to the incident end, the laser at the incident end is more easily influenced, the optical fiber is required to be isolated by an isolator when the practical optical fiber is transmitted for a long distance, and the influence of return light in the optical fiber on a resonant cavity in a laser generator at the incident end of the optical fiber is reduced.
When the power of the incident light is changed, the incident light with different powers needs to be matched with optical isolators with different models, when the power of the existing optical path needs to be changed, the models of the optical isolators need to be changed, and the existing optical isolators are inconvenient to change under the laser power with different powers.
Disclosure of Invention
Aiming at the problem that the incident light with different powers needs to be matched with optical isolators with different types in the prior art, the invention provides the optical fiber isolator convenient to install.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
The utility model provides a fiber isolator convenient to installation, includes incident optical fiber and the outgoing optical fiber at both ends, is close to the one end of incident optical fiber is provided with first casing, is close to the one end of outgoing optical fiber is provided with the second casing, first casing with the second casing skin is provided with the connecting piece that is used for connecting first casing with the second casing, the inside of first casing is provided with first isolation chamber, the inside of second casing is provided with the second isolation chamber of intercommunication first isolation chamber, be equipped with magnetic ring and first fiber collimator in the first isolation chamber, the magnetic ring middle part is equipped with the regulating block, the regulating block cuts apart the magnetic ring axis to adjust fiber light transmission power; the incident optical fiber is communicated with the first optical fiber collimator; and a second optical fiber collimator is arranged in the second isolation cavity, and the emergent optical fiber is communicated with the second optical fiber collimator.
The working principle of the invention is that the light transmission power of the magnetic ring is changed by the upward and downward movement of the regulating block, and the structure and the working principle of the regulating block are the same as those of the Faraday rotator; and further, the power change of the incident light is realized, and the replacement of an optical fiber isolator is not needed.
The use principle of the invention is that the forward transmission: firstly, an optical signal is emitted to a first optical fiber collimator through an incident optical fiber, then the optical signal is transmitted to a front wedge angle piece on the same side as the first optical fiber collimator along a straight line through the first optical fiber collimator, then the front wedge angle piece disperses a light source into o light and e light, then two beams of light are transmitted to a rear wedge angle piece in parallel through a Faraday rotator, and the rear wedge angle piece converts the two beams of parallel light into two beams of light which are transmitted horizontally and parallelly and transmits the two beams of light to a second optical fiber collimator and an emergent optical fiber. Reverse transmission: firstly, an optical signal is emitted to a second optical fiber collimator through an emergent optical fiber, then the optical signal is transmitted to a wedge angle piece on the same side as the second optical fiber collimator along a straight line through the second optical fiber collimator, then the light source is dispersed into o light and e light through the wedge angle piece, then two beams of light are transmitted to the wedge angle piece in parallel through a Faraday rotator, and the two beams of parallel light are converted into two beams of light which are transmitted in non-parallel through the wedge angle piece, so that the two beams of light cannot be transmitted to the first optical fiber collimator and an incident optical fiber, and further irreversible transmission of the optical signal is realized.
Further, a magnetic ring assembly is arranged in the magnetic ring and comprises two wedge angle pieces and Faraday rotators, the two wedge angle pieces are respectively arranged on two sides of the Faraday rotators, two Faraday rotators are arranged between the two wedge angle pieces, and an adjusting block which stretches freely up and down is clamped between the two Faraday rotators.
Further, the regulating block is connected with a cam mechanism, the cam mechanism comprises a cam and a linear shaft rod, the linear shaft rod is connected with the cam through the regulating block, and the regulating block is connected with the cam in a sliding mode.
Further, the linear shaft rod penetrates through the side wall of one side of the first shell, a limit stop block for the linear shaft rod to move up and down is arranged in the first isolation cavity, and a limit spring is arranged between the upper end of the limit stop block and the inner wall of the first shell.
Further, straight line axostylus axostyle lower extreme and regulating block fixed connection, regulating block lower extreme and cam sliding connection, the cam lower extreme is equipped with the arch, and cam outline and regulating block lower extreme protruding part are equipped with cooperation sliding connection's spout, be equipped with the bolt axle between cam and the spout, the bolt axle runs through the arch to with spout sliding connection.
Further, the linear shaft rod is in threaded connection with the first shell, a first external thread is arranged on the side face of the linear shaft rod, an internal thread is arranged at the joint of the first shell and the linear shaft rod, the space between the thread teeth or the thread grooves of the first external thread comprises three specifications, and the thread teeth or the thread grooves of the three specifications comprise first specification space teeth, second specification space teeth and third specification space teeth; the first specification interval tooth sets up in the uppermost department of sharp axostylus axostyle lateral wall, and second specification interval tooth sets gradually in first specification interval tooth below third specification interval tooth bottom in limit stop top with third specification interval tooth. The number of the tooth threads of the first specification interval teeth is the largest, and the tooth thread interval of the second specification interval teeth is the largest.
Further, an L-shaped shaft rod is arranged at the inner bottom of the first isolation cavity, and the cam is connected with the inner side wall of the first shell through the L-shaped shaft rod.
Further, the connecting piece is an internal thread connecting sleeve, and a second external thread which is in matched rotation connection with the internal thread connecting sleeve is arranged on the outer side wall surface of the joint of the first shell and the second shell.
Further, the structure and the working principle of the adjusting block and the Faraday rotator are the same, the light transmission power of the optical fiber is different, the structure and the working principle of the rotating cam and the Faraday rotator are the same, and the light transmission power of the optical fiber is the same.
Further, the outer sides of the first optical fiber collimator and the second optical fiber collimator are respectively provided with ventilation holes. The setting of bleeder vent had not only for the ventilative effect in the fiber isolator use, still provides the exchange of the inside and outside air of fiber isolator, prevents that too much air dust from piling up in first isolation chamber and second isolation chamber, leads to the dust to influence the light transmission efficiency of magnetic ring.
Compared with the prior art, the invention has the following beneficial effects:
The first shell is connected with the second shell through the connecting piece, the connecting structure is simple, the disassembly of the inner structure of the optical fiber isolator is convenient, and meanwhile, when the optical fiber isolator is not disassembled, the optical fiber isolator can be freely moved up and down on the central axis of the magnetic ring through the adjusting block, so that the adjustment of the light transmission power of the optical fiber is realized. The model of the optical isolator or the transmission power of the magnetic ring is changed due to the change of the power of the incident light.
Drawings
FIG. 1 is a schematic illustration of the main structure of an easy-to-install fiber optic isolator according to the present invention;
FIG. 2 is a top view of the outer structure of an optical fiber isolator for facilitating installation in accordance with the present invention;
FIG. 3 is a cross-sectional view at A of FIG. 1;
FIG. 4 is a schematic view of a portion of a linear shaft of an easy-to-install fiber optic isolator according to the present invention;
FIG. 5 is an enlarged schematic view of FIG. 3 at B;
Fig. 6 is an enlarged schematic view at C of fig. 3.
The figure indicates: 1-incident optical fiber, 2-emergent optical fiber, 3-first shell, 4-second shell, 5-internal thread connecting sleeve, 6-first isolation cavity, 7-second isolation cavity, 8-first optical fiber collimator, 9-second optical fiber collimator, 10-magnetic ring, 11-regulating block, 101-wedge angle piece, 102-Faraday rotator, 12-cam, 13-straight shaft lever, 14-limit stop, 15-limit spring, 16-chute, 17-bolt shaft, 18-bulge, 19-first external thread, 20-internal thread, 191-first specification interval tooth, 192-second specification interval tooth, 193-third specification interval tooth, 21-L-shaped shaft lever, 22-second external thread, 23-vent hole, 24-light irradiation surface.
Detailed Description
The invention will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, an optical fiber isolator convenient to install comprises an incident optical fiber 1 and an emergent optical fiber 2 at two ends, wherein a first shell 3 is arranged at one end close to the incident optical fiber 1, a second shell 4 is arranged at one end close to the emergent optical fiber 2, connecting pieces for connecting the first shell 3 and the second shell 4 are arranged on the outer layers of the first shell 3 and the second shell 4, a first isolation cavity 6 is arranged in the first shell 3, a second isolation cavity 7 communicated with the first isolation cavity 6 is arranged in the second shell 4, a magnetic ring 10 and a first optical fiber collimator 8 are arranged in the first isolation cavity 6, an adjusting block 11 is arranged in the middle of the magnetic ring 10, the adjusting block 11 is used for dividing the central axis of the magnetic ring 10, and the light transmission power of the optical fiber is adjusted; the incident optical fiber 1 is communicated with a first optical fiber collimator 8; a second optical fiber collimator 9 is arranged in the second isolation cavity 7, and the emergent optical fiber 2 is communicated with the second optical fiber collimator 9.
The working principle of the invention is that the light transmission power of the magnetic ring 10 is changed by the up-and-down movement of the regulating block 11, and the structure and the working principle of the regulating block 11 and the Faraday rotator 102 are the same; and further, the power change of the incident light is realized, and the replacement of an optical fiber isolator is not needed.
The use principle of the invention is that the forward transmission: firstly, an optical signal is emitted to a first optical fiber collimator 8 through an incident optical fiber 1, then the optical signal is transmitted to a previous wedge angle piece 101 on the same side as the first optical fiber collimator 8 along a straight line through the first optical fiber collimator 8, then the light source is dispersed into o light and e light by the previous wedge angle piece 101, then two beams of light are transmitted to a next wedge angle piece 101 in parallel through a Faraday rotator 102, and the two beams of parallel light are converted into two beams of light which are transmitted in parallel horizontally by the next wedge angle piece 101 and are transmitted to a second optical fiber collimator 9 and an emergent optical fiber 2. Reverse transmission: firstly, an optical signal is emitted onto a second optical fiber collimator 9 through an emergent optical fiber 2, then the optical signal is transmitted onto a next wedge angle piece 101 on the same side as the second optical fiber collimator 9 along a straight line through the second optical fiber collimator 9, then the light source is dispersed into o light and e light by the next wedge angle piece 101, then two beams of light are transmitted onto the previous wedge angle piece 101 in parallel through a Faraday rotator 102, and the two beams of parallel light are converted into two beams of light which are transmitted in non-parallel through the previous wedge angle piece 101, so that the two beams of light cannot be transmitted onto the first optical fiber collimator 8 and an incident optical fiber 1, and further irreversible transmission of the optical signal is realized.
As shown in fig. 3, the area of the light irradiation surface 24, i.e., the partial surface of the adjustment block 11, serves as an irradiation surface for light signals or light propagation.
As shown in fig. 4,5 and 6, a magnetic ring assembly is disposed in the magnetic ring 10, the magnetic ring assembly includes two wedge angle pieces 101 and faraday rotator 102, the two wedge angle pieces 101 are respectively disposed at two sides of the faraday rotator 102, two faraday rotators 102 are disposed between the two wedge angle pieces 101, and an adjusting block 11 that stretches freely up and down is disposed between the two faraday rotators 102. The structure and working principle of the adjusting block 11 and the Faraday rotator 102 are the same, the optical fiber light transmission power is different, the structure and working principle of the rotating cam 12 and the Faraday rotator 102 are the same, and the optical fiber light transmission power is the same. The light transmission power of the optical fiber in the whole Faraday rotator 102 is adjusted by an adjusting block 11 which moves freely up and down. In the specific implementation process, an adjusting block 11 with larger light transmission power can be arranged, so that the light transmission power of the whole Faraday rotator 102 is improved; the adjusting block 11 with lower light transmission power can be arranged, so that the light transmission power of the whole pulling optical rotator is reduced, and even no light transmission exists, and the interception of optical fiber conduction is realized; if the adjusting block 11 is long enough, the adjusting block 11 can also gradually increase the light transmission power of the adjusting block 11 from top to bottom. And further, the light transmission power of the whole optical fiber isolator is ensured to be adjusted on the premise of not disassembling the optical fiber isolator.
The regulating block 11 is connected with a cam 12 mechanism, the cam 12 mechanism comprises a cam 12 and a linear shaft rod 13, the linear shaft rod 13 is connected with the cam 12 through the regulating block 11, and the regulating block 11 is in sliding connection with the cam 12. The adjusting block 11 is driven to move together through the up-and-down linear motion of the linear shaft rod 13, the cam 12 is matched with the linear shaft rod 13 to do curvilinear motion, meanwhile, the limitation on the linearity of the motion direction is achieved when the cam 12 moves up and down the linear shaft rod 13, the phenomenon that the linear shaft rod 13 swings in the inner and outer motion of the first shell 3 is prevented, the motion linearity of the adjusting block 11 is affected, the light transmission efficiency of the Faraday rotator 102 is affected to be in nonlinear change, and the adjustment of the light transmission efficiency of the Faraday rotator 102 is not facilitated.
The linear shaft rod 13 penetrates through the side wall of one side of the first shell 3, a limit stop 14 for the linear shaft rod 13 to move up and down in a linear manner is arranged in the first isolation cavity 6, and a limit spring 15 is arranged between the upper end of the limit stop 14 and the inner wall of the first shell 3. The up-and-down movement of the linear shaft 13 is provided with a limiting function through the arrangement of the limit stop 14 and the limit spring 15, and meanwhile, a person who adjusts the light transmission efficiency is prevented from excessively adjusting the linear shaft 13 to fall off the rotation stroke of the cam 12.
The lower end of the linear shaft lever 13 is fixedly connected with the regulating block 11, the lower end of the regulating block 11 is in sliding connection with the cam 12, a bulge 18 is arranged at the lower end of the cam 12, a sliding groove 16 which is matched and in sliding connection with the bulge 18 at the lower end of the regulating block 11 is arranged on the outer contour of the cam 12, a pin shaft 17 is arranged between the cam 12 and the sliding groove 16, and the pin shaft 17 penetrates through the bulge 18 and is in sliding connection with the sliding groove 16. The arrangement of the bulge 18, the sliding groove 16 and the bolt shaft 17 further prevents the outer contours of the adjusting block 11 and the cam 12 from falling off. The linear shaft rod 13 and the adjusting block 11 can be fixed by welding or can be fixed by bolts or can be detachable.
The linear shaft rod 13 is in threaded connection with the first shell 3, a first external thread 19 is arranged on the side surface of the linear shaft rod 13, an internal thread 20 is arranged at the joint of the first shell 3 and the linear shaft rod 13, the thread teeth or thread groove spaces of the first external thread 19 comprise three specifications, and the thread teeth or thread grooves of the three specifications comprise first specification space teeth 191, second specification space teeth 192 and third specification space teeth 193; the first specification pitch teeth 191 are disposed at the uppermost end of the side wall of the linear shaft 13, and the second specification pitch teeth 192 and the third specification pitch teeth 193 are disposed below the first specification pitch teeth 191 in sequence, with the bottom of the third specification pitch teeth 193 being above the limit stop 14. The first gauge pitch teeth 191 have the largest number of tooth threads and the second gauge pitch teeth 192 have the largest pitch. Different linear lifting distances and speeds of the linear shaft 13 are realized by arranging screw teeth or screw groove pitches different by the first specification pitch teeth 191, the second specification pitch teeth 192 and the third specification pitch teeth 193 to be matched with the rotation of different curved surfaces of the cam 12.
An L-shaped shaft rod 21 is arranged at the inner bottom of the first isolation cavity 6, and the cam 12 is connected with the inner side wall of the first shell 3 through the L-shaped shaft rod 21. By the L-shaped shaft 21 in cooperation with the circular movement of the cam 12, or a reciprocating curvilinear movement. The height of the upper end of the L-shaped shaft rod 21 and the inner side wall of the first shell 3 at the bottom of the first isolation cavity 6 determines the thread length of the curved motion rotated by the cam 12, the minimum length cannot be lower than the length of the short radius of the cam 12, and the maximum height is not higher than the length of the long radius of the cam 12. The cam 12 can be seen as a structure in which two semicircles of different sizes are connected by two straight lines. The center point of the big circle is connected with the L-shaped shaft rod 21, the curved surface thread of the adjusting block 11 on the big circle corresponds to the linear thread of the first specification spacing teeth 191 on the linear shaft rod 13, the thread of the adjusting block 11 on the straight line of the cam 12 corresponds to the linear thread of the second specification spacing teeth 192 on the linear shaft rod 13, and the curved surface thread of the adjusting block 11 on the small circle corresponds to the linear thread of the third specification spacing teeth 193 on the linear shaft rod 13.
The connecting piece is an internal thread 20 connecting sleeve 5, and a second external thread 22 which is matched and rotationally connected with the internal thread 20 connecting sleeve 5 is arranged on the outer side wall surface of the connecting part of the first shell 3 and the second shell 4. The connecting sleeve 5 is rotationally connected and fixed with the internal thread 20 through the second external thread 22, so that the whole optical fiber isolator is convenient to install and detach.
The outer sides of the first optical fiber collimator 8 and the second optical fiber collimator 9 are respectively provided with ventilation holes 23. The ventilation holes 23 provide ventilation function in the use process of the optical fiber isolator, and also provide air exchange inside and outside the optical fiber isolator, so that excessive air dust is prevented from accumulating in the first isolation cavity 6 and the second isolation cavity 7, and the dust affects the light transmission efficiency of the magnetic ring 10.
Compared with the prior art, the invention has the following beneficial effects:
The first shell 3 and the second shell 4 are connected through the connecting piece, the connecting structure is simple, the disassembly of the inner structure of the optical fiber isolator is convenient, and meanwhile, when the optical fiber isolator is not disassembled, the optical fiber light transmission power is adjusted by freely moving up and down on the central axis of the magnetic ring 10 through the adjusting block 11. Reducing the change of the model of the optical isolator or the light transmission power of the magnetic ring 10 due to the change of the power of the incident light.
The optical fiber isolator which is convenient to install is described in detail above. The description of the specific embodiments is only for aiding in the understanding of the structure of the present application and its core idea. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111493009.7A CN114114547B (en) | 2021-12-08 | 2021-12-08 | An optical fiber isolator that is easy to install |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111493009.7A CN114114547B (en) | 2021-12-08 | 2021-12-08 | An optical fiber isolator that is easy to install |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114114547A CN114114547A (en) | 2022-03-01 |
| CN114114547B true CN114114547B (en) | 2024-11-15 |
Family
ID=80363476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111493009.7A Active CN114114547B (en) | 2021-12-08 | 2021-12-08 | An optical fiber isolator that is easy to install |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114114547B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114779503A (en) * | 2022-03-28 | 2022-07-22 | 安徽科瑞思创晶体材料有限责任公司 | TGG optic fibre laser isolator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0477713A (en) * | 1990-07-20 | 1992-03-11 | Namiki Precision Jewel Co Ltd | Optical isolator independent of polarization |
| CN111457864A (en) * | 2020-04-26 | 2020-07-28 | 中国矿业大学 | A device and method for detecting the rocker arm angle of a shearer based on optical fiber sensing |
| CN113219682A (en) * | 2021-05-06 | 2021-08-06 | 深圳市中葛科技有限公司 | Novel all-optical fiber isolator and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0634915A (en) * | 1992-07-15 | 1994-02-10 | Fujitsu Ltd | Optical isolator, light amplifier provided with the optical isolator, and duplex optical transmission system provided with the optical amplifier |
| JP2001042265A (en) * | 1999-07-30 | 2001-02-16 | Tokin Corp | Optical isolator |
| US6522456B2 (en) * | 2001-05-04 | 2003-02-18 | Corning Applied Technologies, Inc. | Dynamic optical filter |
| CN108663752A (en) * | 2017-03-31 | 2018-10-16 | 珠海光库科技股份有限公司 | Optoisolator and its control method |
| CN214097868U (en) * | 2020-12-31 | 2021-08-31 | 武汉锐科光纤激光技术股份有限公司 | Optical isolator and laser equipment |
-
2021
- 2021-12-08 CN CN202111493009.7A patent/CN114114547B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0477713A (en) * | 1990-07-20 | 1992-03-11 | Namiki Precision Jewel Co Ltd | Optical isolator independent of polarization |
| CN111457864A (en) * | 2020-04-26 | 2020-07-28 | 中国矿业大学 | A device and method for detecting the rocker arm angle of a shearer based on optical fiber sensing |
| CN113219682A (en) * | 2021-05-06 | 2021-08-06 | 深圳市中葛科技有限公司 | Novel all-optical fiber isolator and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114114547A (en) | 2022-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114114547B (en) | An optical fiber isolator that is easy to install | |
| CN109143475B (en) | Coupling lens system | |
| CN103217815B (en) | Optoisolator | |
| CN105182545B (en) | Laser aid | |
| CN203225450U (en) | Large power fiber output semiconductor laser | |
| CN102882128B (en) | Based on the high-power and high-luminance LASER Light Source of optical fiber cone coupling | |
| CN202794614U (en) | Multi-channel optical component and parallel optical module provided with light emission power monitoring function | |
| CN201337518Y (en) | Beam bunching easy adjusting laser side-radiating variable-angle optical fiber scalpel | |
| CN203037895U (en) | Self-focusing lens fiber | |
| CN206864860U (en) | A kind of semiconductor side pumped amplification system | |
| CN103293604B (en) | Based on the accurate fibre delay line of prism of corner cube and the method for accurate Time delay control | |
| CN203337857U (en) | A precise fiber delay line based on a pyramid prism | |
| CN219542024U (en) | Laser cutting head | |
| CN109526444A (en) | A kind of dynamic can adjust the light supplementing lamp for plants of light quality proportion | |
| CN215569811U (en) | Light source profile conversion structure | |
| CN213513304U (en) | Plant light environmental system research lamp with adjustable function | |
| CN209055681U (en) | A kind of stray light receipts light cylinder | |
| CN208331021U (en) | A kind of agricultural machinery that use cost is low spline axis mechanism | |
| CN210565475U (en) | Device for precisely adjusting bidirectional position of interference fit part | |
| CN209100600U (en) | A kind of adjustable agricultural machinery belt pulley convenient to use | |
| CN202059047U (en) | Tetra-core holmium laser generation system | |
| CN202362003U (en) | Laser linearity adjusting device | |
| CN207943659U (en) | A kind of double cylinder cable bracket devices producing cable and wire equipment | |
| CN210622867U (en) | Steam turbine guide vane with adjustable structure | |
| CN205643764U (en) | Can strengthen light guide plate of light intensity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |