CN207232434U - A kind of optoisolator - Google Patents
A kind of optoisolator Download PDFInfo
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- CN207232434U CN207232434U CN201721136718.9U CN201721136718U CN207232434U CN 207232434 U CN207232434 U CN 207232434U CN 201721136718 U CN201721136718 U CN 201721136718U CN 207232434 U CN207232434 U CN 207232434U
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- polymer film
- magnetic patch
- thin polymer
- optoisolator
- gap
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Abstract
The utility model discloses a kind of optoisolator, magnetic patch and isolated core, the gap of the axially disposed perforation of magnetic patch, and the magnetic patch surface is provided with the bright nickel layer that thickness is 0.005 0.012mm；The length of the isolated core along magnetic patch axial direction is 0.35 0.56mm, it includes faraday's piece and is separately positioned on the thin polymer film of faraday's piece incidence surface and light-emitting surface, it is provided with the thin polymer film polarization direction of the incidence surface parallel to the plane where the gap opening, it is 45 degree to be arranged at the thin polymer film polarization direction of the light-emitting surface with the thin polymer film polarization direction angle of the incidence surface.Overall small of optoisolator provided by the utility model, light path drift of the light path in isolated core is small, loss reduces, and reduces the cost of production optoisolator, meets demand of the current optical communication industry for small optical isolator.
Description
Technical field
The utility model belongs to optical communication field, and in particular to a kind of optoisolator.
Background technology
Optoisolator is a kind of Passive Optical Components for allowing Unidirectional light to pass through, its operation principle is to be based on Faraday rotation
Nonreciprocity.It can be isolated well by optoisolator by the light of optical fiber echo reflection.
At present, permanent magnet mainly uses ndfeb magnet in optoisolator, and the polarizer of isolated core mainly uses glass base
Plate polarizer.Since the thickness of the polarizer of glass substrate is thicker, it will usually reach 200um, the thickness of faraday's piece usually exists
Between 300um to 550um, it is whole to result in optoisolator chip core (optoisolator Core, refers to the core component of optoisolator)
Body thickness reaches more than 720um, and then causes that optoisolator volume is big, and cost is higher.And the content of iron is very high in neodymium iron boron,
So being oxidized easily corrosion, service life is largely determined by the effect of coating.Samarium cobalt magnet has high magnetic energy at the same time
Long-pending, extremely low temperature coefficient, maximum operating temperature is up to 350 DEG C, in more than 180 DEG C of operating temperature, itself and temperature stability
Exceed Nd-Fe-B permanent magnet material with chemical stability.
Chinese patent CN203241653U discloses a kind of optoisolator inside the To-can lasers, the light every
Include isolated core, external package pipe and magnetic patch from device.Isolated core is arranged in magnetic patch, and external package pipe is consolidated by adhesive and magnetic patch
It is fixed.Magnetic patch includes a through hole, includes the first turning and the second turning on through hole, the first turning and the second turning are smooth arc
Shape turning.The isolator uses glue by setting smooth curved corners to solve isolated core in the through hole of magnetic patch with magnetic patch assembling
The excessive influence of mixture dosage, but the isolator does not cut off contact of the magnetic patch with air, and then cause magnetic patch to be oxidized easily
Corrosion, while the external package pipe of isolator setting increases the volume of isolator, adds the difficulty of assembling, improves manufacture
Cost.
Utility model content
The technical problem to be solved of the utility model is that magnetic patch is oxidized easily in optoisolator in the prior art
Corrosion, and volume is big, it is of high cost.And then a kind of corrosion-resistant, salt spray resistance is provided, small, cost is low and easily assembles optically isolated
Device.
In order to solve the above-mentioned technical problem, there is provided a kind of optoisolator, including magnetic patch and isolated core,
The gap of the axially disposed perforation of magnetic patch, for placing the isolated core, the magnetic patch surface is provided with thickness
Spend the bright nickel layer for 0.005-0.012mm；
The length of the isolated core along magnetic patch axial direction is 0.35-0.56mm, it includes faraday's piece and sets respectively
In faraday's piece incidence surface and the thin polymer film of light-emitting surface, the thin polymer film polarization in the incidence surface is provided with
The plane being oriented parallel to where the gap opening, be arranged at the thin polymer film polarization direction of the light-emitting surface with it is described enter
The thin polymer film polarization direction angle of smooth surface is 45 degree.
Preferably, the bottom of the gap sets arc groove, the extending direction of the arc groove and the gap extension side
To consistent.
Preferably, the cross section of the arc groove is arc-shaped or U-shaped.
Preferably, the arc groove is provided with two, respectively positioned at the gap two walls confluce.
Preferably, the gap is 0.45mm along the magnetic patch radial width.
Preferably, the thin polymer film is the silver ion thin polymer film or copper ion polymer thin for possessing polarization property
Film.
Preferably, the thickness of the thin polymer film is 20-100 μm.
Preferably, it is additionally provided with anti-reflection film between faraday's piece and the thin polymer film.
The technical solution of the utility model, has the following advantages that：
Optoisolator provided by the utility model, including magnetic patch and isolated core, the thickness of isolated core is 0.35-0.56mm,
So that optoisolator entirety is small.After isolated core thickness is thinning at the same time, light path drift of the light path in isolated core is small, loss
Reduce, reduce the cost of production optoisolator, meet demand of the current optical communication industry for small optical isolator.
Magnetic patch provided by the utility model, is provided with two arc-shaped slots, by the way that adhesive is irrigated in gap inner surface
In arc-shaped slot, solve the problems, such as solid due to being pasted not strongly caused by adhesive underdosage between isolated core and magnetic patch.
Simultaneously as adhesive is poured in arc-shaped slot so that the operation that isolated core fits into magnetic patch is more convenient, more efficient, drop
Low clean difficulty, appearance test are easier.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing is briefly described needed in description, it should be apparent that, drawings in the following description are the utility model
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structure diagram of the optoisolator provided in the utility model embodiment；
Fig. 2 is the structure diagram of the magnetic patch provided in the utility model embodiment；
Fig. 3 is the structure diagram of the isolated core provided in the utility model embodiment.
Reference numeral：100- magnetic patch, 101- gap, the first arc-shaped slots of 102a-, the second arc-shaped slots of 102b-, 200- every
Off-chip, 201- faraday's pieces, 202a- first polymer films, 202b- second polymer films.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected scope.
Embodiment 1
The present embodiment provides a kind of optoisolator, as shown in Figure 1, optoisolator includes magnetic patch 100 and isolated core 200.Its
In, the gap 101 of the perforation of magnetic patch 100 axially disposed one, isolated core 200 is arranged in gap 101, is glued by adhesive
Close and fix.
As shown in Fig. 2, magnetic patch 100 includes gap 101, magnetic patch surface is provided with the bright nickel layer that thickness is 0.005mm,
Gap 101 is 0.45mm along 100 radial width of magnetic patch, and wherein 101 inner surface of gap is provided with two arc-shaped slots, is respectively the
One arc-shaped slot 102a and the second arc-shaped slot 102b, wherein the first arc-shaped slot 102a and the second arc-shaped slot 102b is circle
Shape notch.Referring concurrently to Fig. 1, isolated core 200 is arranged in gap 101, by adhesive by isolated core 200 and magnetic patch 100 into
Row is fixed, and it is in circular notch that wherein adhesive, which is poured into the first arc-shaped slot 102a and the second arc-shaped slot 102b,.
As shown in figure 3, isolated core 200 is thin including faraday's piece 201, first polymer film 202a and second polymer
Film 202b, first polymer film 202a and second polymer film 202b are respectively adhered on 201 two sides of faraday's piece, wherein,
Faraday's piece 201 uses magneto-optical crystal Faraday rotation piece, the wherein a length of 1270nm of cardiac wave, thickness 0.29mm, the first polymerization
Thing film 202a is pasted onto the incidence surface of faraday's piece 201, and second polymer film 202b is pasted onto going out for faraday's piece 201
Smooth surface, first polymer film 202a polarization directions are parallel to the plane where the opening of gap 101, second polymer film 202b
Polarization direction and first polymer film 202a polarization directions angle are 45 degree.First polymer film 202a and second polymer
The thickness of film 202b is 20um.201 both sides of faraday's piece are respectively equipped with anti-reflection film, anti-reflection film be arranged on faraday's piece 201 with
Between first polymer film 202a and second polymer film 202b.200 thickness of isolated core is 0.35mm.
Embodiment 2
The present embodiment provides a kind of optoisolator, as shown in Figure 1, optoisolator includes magnetic patch 100 and isolated core 200.Its
In, the gap 101 of the perforation of magnetic patch 100 axially disposed one, isolated core 200 is arranged in gap 101, is glued by adhesive
Close and fix.
As shown in Fig. 2, magnetic patch 100 includes gap 101, magnetic patch surface is provided with the bright nickel layer that thickness is 0.012mm,
Gap 101 is 0.45mm along 100 radial width of magnetic patch, and wherein 101 inner surface of gap is provided with two arc-shaped slots, is respectively the
One arc-shaped slot 102a and the second arc-shaped slot 102b, wherein the first arc-shaped slot 102a and the second arc-shaped slot 102b is circle
Shape notch.Referring concurrently to Fig. 1, isolated core 200 is arranged in gap 101, by adhesive by isolated core 200 and magnetic patch 100 into
Row is fixed, and it is in circular notch that wherein adhesive, which is poured into the first arc-shaped slot 102a and the second arc-shaped slot 102b,.
As shown in figure 3, isolated core 200 is thin including faraday's piece 201, first polymer film 202a and second polymer
Film 202b, first polymer film 202a and second polymer film 202b are respectively adhered on 201 two sides of faraday's piece, wherein,
Faraday's piece 201 uses magneto-optical crystal Faraday rotation piece, the wherein a length of 1610nm of cardiac wave, thickness 0.50mm, the first polymerization
Thing film 202a is pasted onto the incidence surface of faraday's piece 201, and second polymer film 202b is pasted onto going out for faraday's piece 201
Smooth surface, first polymer film 202a polarization directions are parallel to the plane where the opening of gap 101, second polymer film 202b
Polarization direction and first polymer film 202a polarization directions angle are 45 degree.First polymer film 202a and second polymer
The thickness of film 202b is 20um.201 both sides of faraday's piece are respectively equipped with anti-reflection film, anti-reflection film be arranged on faraday's piece 201 with
Between first polymer film 202a and second polymer film 202b.200 thickness of isolated core is 0.56mm.
Obviously, the above embodiments are merely examples for clarifying the description, and the restriction not to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (8)
1. a kind of optoisolator, including magnetic patch and isolated core,
The gap of the axially disposed perforation of magnetic patch, for placing the isolated core, it is characterised in that the magnetic patch surface is set
It is equipped with the bright nickel layer that thickness is 0.005-0.012mm；
The length of the isolated core along magnetic patch axial direction is 0.35-0.56mm, it includes faraday's piece and is separately positioned on institute
The thin polymer film of faraday's piece incidence surface and light-emitting surface is stated, is provided with the thin polymer film polarization direction of the incidence surface
Parallel to the plane where the gap opening, the thin polymer film polarization direction of the light-emitting surface and the incidence surface are arranged at
Thin polymer film polarization direction angle be 45 degree.
2. optoisolator according to claim 1, it is characterised in that the bottom of the gap sets arc groove, the arc
The extending direction of shape groove is consistent with the gap extending direction.
3. optoisolator according to claim 2, it is characterised in that the cross section of the arc groove is arc-shaped or U-shaped.
4. optoisolator according to claim 3, it is characterised in that the arc groove is provided with two, respectively positioned at institute
State the confluce of two walls of gap.
5. optoisolator according to claim 1, it is characterised in that the gap is along the magnetic patch radial width
0.45mm。
6. optoisolator according to claim 1, it is characterised in that the thin polymer film is the silver for possessing polarization property
Ionomer film or copper ion thin polymer film.
7. optoisolator according to claim 1, it is characterised in that the thickness of the thin polymer film is 20-100 μm.
8. optoisolator according to claim 1, it is characterised in that faraday's piece and the thin polymer film it
Between be additionally provided with anti-reflection film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136718.9U CN207232434U (en) | 2017-09-06 | 2017-09-06 | A kind of optoisolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136718.9U CN207232434U (en) | 2017-09-06 | 2017-09-06 | A kind of optoisolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207232434U true CN207232434U (en) | 2018-04-13 |
Family
ID=61860812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721136718.9U Active CN207232434U (en) | 2017-09-06 | 2017-09-06 | A kind of optoisolator |
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| Country | Link |
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| CN (1) | CN207232434U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110927881A (en) * | 2018-09-19 | 2020-03-27 | 苏州旭创科技有限公司 | Optical plug-in with isolator and optical module with optical plug-in |
-
2017
- 2017-09-06 CN CN201721136718.9U patent/CN207232434U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110927881A (en) * | 2018-09-19 | 2020-03-27 | 苏州旭创科技有限公司 | Optical plug-in with isolator and optical module with optical plug-in |
| CN110927881B (en) * | 2018-09-19 | 2021-06-18 | 苏州旭创科技有限公司 | Optical plug-in with isolator and optical module with optical plug-in |
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