CN209132536U - A kind of unrelated fibre optic isolater of novel polarization - Google Patents
A kind of unrelated fibre optic isolater of novel polarization Download PDFInfo
- Publication number
- CN209132536U CN209132536U CN201821456044.5U CN201821456044U CN209132536U CN 209132536 U CN209132536 U CN 209132536U CN 201821456044 U CN201821456044 U CN 201821456044U CN 209132536 U CN209132536 U CN 209132536U
- Authority
- CN
- China
- Prior art keywords
- ring
- wedge
- mounting ring
- magnet ring
- faraday rotator
- Prior art date
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Abstract
The utility model relates to a kind of unrelated fibre optic isolaters of novel polarization, including magnet ring, Faraday rotator, first wedge cornual plate, second angle of wedge piece, first optical fiber collimator and the second optical fiber collimator, first optical fiber collimator and the second optical fiber collimator set up separately in the two sides of ring axial magnetic, it further include the mounting ring being arranged in the magnet ring, the outer wall of mounting ring is connected on the inner wall of the magnet ring, the inner wall of mounting ring is equipped with supporting table, Faraday rotator is arranged in supporting table, strip groove is equipped in the inner wall of magnet ring, strip groove extends to other end from an end face of ring axial magnetic, it is equipped with and the matched positioning strip of strip groove in the outer wall of the mounting ring, axial direction setting of the positioning strip along the mounting ring.The utility model can more rapidly assemble the second angle of wedge piece, promote the packaging efficiency of entire isolator.
Description
Technical field
The utility model relates to a kind of unrelated fibre optic isolaters of novel polarization.
Background technique
It is constantly present the backlight that many reasons generate in fiber optic communication systems, and in order to guarantee the light letter of positive transmission
The collimated light beam that number can synthesize spacing very little is coupled in fiber core, and the optical signal of reverse transfer is because to different directions
Refraction is separated into a very big angle and cannot be introduced into fiber core, it is therefore necessary to design a kind of fibre optic isolater.Such as CN
204945528 U in the Chinese utility model patent of entitled " a kind of polarization unrelated fibre optic isolater ", disclose a kind of polarization
Unrelated fibre optic isolater, including magnet ring, Faraday rotator, first wedge cornual plate, the second angle of wedge piece, the first optical fiber collimator and
Two optical fiber collimators, the Faraday rotator are arranged in magnet ring, and first wedge cornual plate, which is mounted in magnet ring, is located at faraday's rotation
Turn the left side of device, the second angle of wedge piece is mounted on the right side for being located at Faraday rotator in magnet ring, and the crystallographic axis of the second angle of wedge piece is opposite
It is in 45 ° of angles in first wedge cornual plate, the left-hand end outside magnet ring, the setting of the second optical fiber collimator is arranged in the first optical fiber collimator
Right-hand end outside magnet ring.
In optoisolator in above-mentioned patent, as core component, optoisolator core includes magnet ring, is arranged in magnet ring
Faraday rotator and the first wedge cornual plate and the second angle of wedge piece for being separately positioned on Faraday rotator two sides, in assembling process
In, first first wedge cornual plate is fixed on Faraday rotator with glue, then together by first wedge cornual plate and Faraday rotator
In merging magnet ring and glue is fixed in magnet ring, the second angle of wedge piece is put into magnet ring later, and will by switch second angle of wedge piece
The insertion loss of isolator core is adjusted to suitable numerical value, however during switch second angle of wedge piece, if first angle of wedge
Being not connected firmly of piece and magnet ring is leaned on or Faraday rotator and being not connected firmly for magnet ring are leaned on, then due to first wedge cornual plate or farad
The loosening of rotator will affect the debug time of the second angle of wedge piece.
In consideration of it, the present inventor carries out in-depth study to the above problem, there is this case generation then.
Utility model content
The purpose of this utility model is to provide a kind of a kind of unrelated fibre optic isolaters of the higher novel polarization of packaging efficiency.
In order to achieve the above object, the utility model uses such technical solution:
A kind of unrelated fibre optic isolater of novel polarization, including magnet ring, Faraday rotator, first wedge cornual plate, second angle of wedge
Piece, the first optical fiber collimator and the second optical fiber collimator, the Faraday rotator are arranged in magnet ring, first wedge cornual plate and the
Two angle of wedge pieces are installed in magnet ring and set up separately in the two sides of Faraday rotator, the first optical fiber collimator and the second fiber optic collimator
It further includes the mounting ring being arranged in the magnet ring in the two sides of ring axial magnetic that device, which sets up separately, and the outer wall of mounting ring is connected to described
On the inner wall of magnet ring, the inner wall of mounting ring is equipped with supporting table, and the Faraday rotator is arranged in supporting table, and mounting ring is along axis
To one end be set as first end, first end is equipped with the first opening, and mounting ring is set as second end along the axial other end, and second end is set
There is the second opening, form light transmission channel between the first opening and the second opening, the first wedge cornual plate setting is described the
One end, second angle of wedge piece setting are equipped with strip groove in the second end, in the inner wall of magnet ring, and strip groove is from ring axial magnetic
One end face extends to other end, the mounting ring outer wall be equipped with the matched positioning strip of strip groove, positioning strip along described in
The axial setting of mounting ring
As a kind of preferred embodiment of the utility model, the number of the strip groove is two, two strip grooves point
The both ends of the magnet ring radial direction are located at, the number of the positioning strip corresponds to two.
As a kind of preferred embodiment of the utility model, the positioning strip extends from the axial first end face of the mounting ring
To axial other end.
As a kind of preferred embodiment of the utility model, the crystallographic axis of the first wedge cornual plate is relative to second angle of wedge piece
In 45 ° of angles.
As a kind of preferred embodiment of the utility model, the loss of the Faraday rotator is 0.02~0.06dB.
As a kind of preferred embodiment of the utility model, the Faraday rotator is fixed on the support by adhesive
On platform, the first wedge cornual plate is fixed on the first end by adhesive, and second angle of wedge piece is fixed on by adhesive
The second end, the mounting ring are fixed on the inner wall of the magnet ring by adhesive.
As a kind of preferred embodiment of the utility model, the first wedge cornual plate and second angle of wedge piece are that Yttrium Orthovanadate is brilliant
Body.
After the technical solution of the utility model, in entire optoisolator, by setting mounting ring as faraday
The carrier that rotator and first wedge cornual plate are auxiliarily fixed, mounting ring is cooperated by the locating slot in positioning strip and magnet ring, to make
Mounting ring will not rotate relative to magnet ring, when being packed into the second angle of wedge piece, switch debugging the second angle of wedge piece when, first wedge cornual plate with
Faraday rotator not can rotate, and so as to more rapidly assemble the second angle of wedge piece, promote the assembling effect of entire isolator
Rate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the first embodiment of the utility model isolator core；
Fig. 2 is the structural schematic diagram of second of embodiment of the utility model isolator core；
Fig. 3 is the structural schematic diagram of the utility model middle magnetic ring；
Fig. 4 is the structural schematic diagram of mounting ring in the utility model；
Fig. 5 is the structural schematic diagram of isolator in the utility model；
In figure:
100- isolator core 200- first collimator
300- the second collimator 10- first wedge cornual plate
20- second angle of wedge piece 30- Faraday rotator
31- the first Faraday rotator the second Faraday rotator of 32-
40- magnet ring 41- strip groove
50- mounting ring 51- supporting table
52- light transmission channel 53- positioning strip
61- first refractive film the second refraction film of 62-
70- adhesive layer
Specific embodiment
In order to which the technical solution of the utility model is explained further, it is described in detail with reference to the accompanying drawing.
Embodiment one
Referring to Figure 2 to Figure 4, a kind of ready-package isolator core, including magnet ring 40 are proposed in the utility model, in magnet ring 40
Inside it is installed with Faraday rotator 30, first wedge cornual plate 10 and the second angle of wedge piece 20, first wedge cornual plate 10 and the second angle of wedge piece
20 to set up separately further include the mounting ring 50 being arranged in the magnet ring 40 in the two sides of Faraday rotator 30, mounting ring 50 it is outer
Wall is connected on the inner wall of the magnet ring 40, and the inner wall of mounting ring 50 is equipped with supporting table 51, supporting table 51 in a ring, the farad
Rotator 30 is arranged in supporting table 51, and mounting ring 50 is set as first end along axial one end, and first end is equipped with the first opening,
Mounting ring 50 is set as second end along the axial other end, and second end is equipped with the second opening, shape between the first opening and the second opening
At light transmission channel 52, in the first end, second angle of wedge piece 20 is arranged described for the setting of first wedge cornual plate 10
Second end.In the utility model, it is equipped with strip groove 41 in the inner wall of magnet ring 40, strip groove 41 is prolonged from the axial end face of magnet ring 40
Extend to other end, the mounting ring 50 outer wall be equipped with the matched positioning strip 53 of strip groove 41, positioning strip 53 is along described
The axial setting of mounting ring 50.In assembling, positioning strip 53 is inlaid in strip groove 41, opposite so as to limit mounting ring 50
It is rotated in magnet ring 40.
As a kind of preferred embodiment of the utility model, the number of the strip groove 41 is two, two strip grooves
41 set up separately at the radial both ends of the magnet ring 40, and the number of the positioning strip 53 corresponds to two.Certainly, in the utility model,
The number of strip groove 41 is not limited to two, may be one or three.
As a kind of preferred embodiment of the utility model, the crystallographic axis of the first wedge cornual plate 10 is relative to second angle of wedge
Piece 20 is in 45 ° of angles.
As a kind of preferred embodiment of the utility model, the Faraday rotator 30 is fixed on the branch by adhesive
It supports on platform 51, the first wedge cornual plate 10 is fixed on the first end by adhesive, and second angle of wedge piece 20 passes through gluing
Agent is fixed on the second end, and the mounting ring 50 is fixed on the inner wall of the magnet ring 40 by adhesive.
As a kind of preferred embodiment of the utility model, the mounting ring 50 is steel loop.
As a kind of preferred embodiment of the utility model, the first wedge cornual plate 10 and second angle of wedge piece 20 are vanadic acid
Yttrium crystal or lithium columbate crystal.
Embodiment two
Referring to Fig.1,3,4, the utility model also proposed a kind of sigle-stage AC isolator core, including magnet ring 40, in magnet ring
Faraday rotator, first wedge cornual plate 10 and the second angle of wedge piece 10, first wedge cornual plate 10 and the second angle of wedge piece are installed in 40
10 to set up separately further include the mounting ring 50 being arranged in the magnet ring 40, the inner wall of mounting ring 50 in the two sides of Faraday rotator
It is connected to the inner wall of the magnet ring 40, the inner wall of mounting ring 50 is equipped with supporting table 51, and the mounting ring is set as along axial one end
First end, first end are equipped with the first opening, and mounting ring 50 is set as second end along the axial other end, and second end is equipped with second and opens
Mouthful, light transmission channel 52 is formed between the first opening and the second opening, the first wedge cornual plate 10 is arranged in the first end,
Second angle of wedge piece 10 is arranged in the second end.In this embodiment, the Faraday rotator includes the first faraday
Rotator 31 and the second Faraday rotator 32, the first Faraday rotator 31 and the second Faraday rotator 31 are along mounting ring 50
Axial direction it is folded be located at together, the first Faraday rotator 31 is compounded with first refractive close to the second Faraday rotator 32 on one side
Film layer 61, the second Faraday rotator 32 are compounded with the second refracting film layer close to first Faraday rotator 31 on one side
62, first refractive film 61 and the second refraction film 62 can be anti-reflection film, be equipped between first refractive film 61 and the second refraction film 62
The refractive index of adhesive layer 70, adhesive layer 70 is corresponding with the refractive index of the refractive index of first refractive film 61 and the second refraction film 62
Configuration, namely by the selection of 70 three's refractive index of first refractive film 61, the second refraction film 62 and adhesive layer, so that light
Enter the second Faraday rotator 62 from the first Faraday rotator 61, transmission route will not change, those skilled in the art
Corresponding translucent material be can choose to realize the purpose.
In this embodiment, in addition to Faraday rotator number and laying mode are different from embodiment one, remaining structure is equal
It can be using the structure in embodiment one, as mounting ring 50 and 40 fit structure of magnet ring are the same as example 1
Embodiment three
Referring to figs. 1 to Fig. 5, the utility model also proposed a kind of unrelated fibre optic isolater of novel polarization, including isolator
Core 100, the first optical fiber collimator 200 and the second optical fiber collimator 300, the first optical fiber collimator 200 and the second optical fiber collimator
300 set up the two sides axial in isolator core 100 separately.Wherein, isolator core 100 can using in embodiment one isolator core or
Isolator core in person's embodiment two.Wherein, the loss of the Faraday rotator is 0.02~0.06dB.From the first optical fiber standard
The light that straight device 200 enters is coupled in optical fiber after the processing of isolator core, then by the second optical fiber collimator 300.
The isolator core that the utility model refers to can be used for single-stage isolated device, Double-stage isolator, can also be used in mini
In isolator.
The product form of the utility model is not limited to this case diagram and embodiment, anyone carries out similar thinking to it
Appropriate changes or modifications all should be regarded as the patent category for not departing from the utility model.
Claims (7)
1. a kind of unrelated fibre optic isolater of novel polarization, including magnet ring, Faraday rotator, first wedge cornual plate, the second angle of wedge piece,
First optical fiber collimator and the second optical fiber collimator, the Faraday rotator are arranged in magnet ring, first wedge cornual plate and second
Angle of wedge piece is installed in magnet ring and sets up separately in the two sides of Faraday rotator, the first optical fiber collimator and the second optical fiber collimator
Set up separately in the two sides of ring axial magnetic, it is characterised in that: further include the mounting ring being arranged in the magnet ring, the outer wall of mounting ring connects
It connects on the inner wall of the magnet ring, the inner wall of mounting ring is equipped with supporting table, and the Faraday rotator is arranged in supporting table, peace
Dress ring is set as first end along axial one end, and first end is equipped with the first opening, and mounting ring is set as second end along the axial other end,
Second end is equipped with the second opening, and light transmission channel, the first wedge cornual plate setting are formed between the first opening and the second opening
In the first end, second angle of wedge piece setting is equipped with strip groove in the second end, in the inner wall of magnet ring, and strip groove is from magnetic
Annulate shaft to an end face extend to other end, the mounting ring outer wall be equipped with and the matched positioning strip of strip groove, positioning
Axial direction setting of the item along the mounting ring.
2. the unrelated fibre optic isolater of a kind of novel polarization as described in claim 1, it is characterised in that: the number of the strip groove
It is two, two strip grooves set up separately at the both ends of the magnet ring radial direction, and the number of the positioning strip corresponds to two.
3. a kind of unrelated fibre optic isolater of as claimed in claim 2 novel polarization, it is characterised in that: the positioning strip is from described
The axial first end face of mounting ring extends to axial other end.
4. the unrelated fibre optic isolater of a kind of novel polarization as claimed in claim 3, it is characterised in that: the first wedge cornual plate
Crystallographic axis is in 45 ° of angles relative to second angle of wedge piece.
5. the unrelated fibre optic isolater of a kind of novel polarization as claimed in claim 4, it is characterised in that: the Faraday rotator
Loss be 0.02~0.06dB.
6. the unrelated fibre optic isolater of a kind of novel polarization as claimed in claim 5, it is characterised in that: the Faraday rotator
Fixed on the supporting table by adhesive, the first wedge cornual plate is fixed on the first end by adhesive, and described the
Two angle of wedge pieces are fixed on the second end by adhesive, and the mounting ring is fixed on the inner wall of the magnet ring by adhesive.
7. a kind of unrelated fibre optic isolater of as claimed in claim 6 novel polarization, it is characterised in that: the first wedge cornual plate and
Second angle of wedge piece is yttrium vanadate crystal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821456044.5U CN209132536U (en) | 2018-09-06 | 2018-09-06 | A kind of unrelated fibre optic isolater of novel polarization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821456044.5U CN209132536U (en) | 2018-09-06 | 2018-09-06 | A kind of unrelated fibre optic isolater of novel polarization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209132536U true CN209132536U (en) | 2019-07-19 |
Family
ID=67229880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821456044.5U Expired - Fee Related CN209132536U (en) | 2018-09-06 | 2018-09-06 | A kind of unrelated fibre optic isolater of novel polarization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209132536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112748496A (en) * | 2020-12-25 | 2021-05-04 | 湖南恒凯通信息科技有限公司 | Novel free space isolator |
-
2018
- 2018-09-06 CN CN201821456044.5U patent/CN209132536U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112748496A (en) * | 2020-12-25 | 2021-05-04 | 湖南恒凯通信息科技有限公司 | Novel free space isolator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190719 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |