CN207096611U - A kind of fibre optic isolater - Google Patents
A kind of fibre optic isolater Download PDFInfo
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- CN207096611U CN207096611U CN201720899277.1U CN201720899277U CN207096611U CN 207096611 U CN207096611 U CN 207096611U CN 201720899277 U CN201720899277 U CN 201720899277U CN 207096611 U CN207096611 U CN 207096611U
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Abstract
The utility model provides a kind of fibre optic isolater, including：Optically-active isolated core, it is made up of magnet ring and the gyrotropi crystal component being fixed on inside magnet ring；The first openend of magnet ring and fixation are stretched into first optical fiber collimator, its end；The second openend of magnet ring and fixation are stretched into second optical fiber collimator, its end.The beneficial effects of the utility model：The number of parts of fibre optic isolater is reduced to ultimate attainment, while processing technology is also reduced to most simple, production cost is greatly reduced, while improve the reliability and service life of fibre optic isolater.
Description
Technical field
A kind of fibre optic isolater is the utility model is related to, belongs to fiber optic communication field.
Background technology
The online isolator of mini optical fibre, generally by two optical fiber collimators, Faraday core, the full adhesive process of glass tube
Encapsulation forms.
Shown in Fig. 1 is the existing online isolator of normal miniature optical fiber, using optical fiber head 11 and lens 12, loads glass tube
In 13, adjust the axial gap of optical fiber head 11 and lens 12 to optical property it is qualified after, optical fiber head 11 and lens 12 are fixed with glue
In the endoporus of glass tube 13, it is baked to that glue is hard, completes the making of optical fiber collimator 1.Using optical fiber head 31 and lens 32, load glass
In glass pipe 33, adjust the axial gap of optical fiber head 31 and lens 32 to optical property it is qualified after, with glue by optical fiber head 31 and lens 32
It is fixed in the endoporus of glass tube 33, is baked to that glue is hard, completes the making of optical fiber collimator 3.
Three groups are synthesized with sticker using crystal prism 22, faraday's crystal 23, crystal prism 24, are inserted in magnet ring 21
Centre, make Faraday core 2.Encapsulation is that the glass tube 13 of collimater and glass tube 33 are stretched into the endoporus of covering glass tube 4, is used
Glue is fixed, and it is hard to be baked to glue.
Optical fiber collimator 1, Faraday core 2, optical fiber collimator 3 that above-mentioned pre-production is completed are put into covering glass
In pipe 4, Faraday core 2 is fixed on to the center of covering glass tube 4 with glue, adjusts optical fiber collimator 1 and optical fiber collimator 3
Posture make its optical property qualified after, optical fiber collimator 1 and optical fiber collimator 3 are fixed on to the both ends of covering glass tube 4 with glue
In endoporus, it is hard to be baked to glue.
Optical fiber collimator is made using above-mentioned technique, number of parts is more, complex manufacturing technology, and cost is high.
Utility model content
Technical problem to be solved in the utility model is：The number of parts of fibre optic isolater is reduced, simplifies Fiber isolation
The manufacture craft of device.
In order to solve the above-mentioned technical problem, the utility model provides a kind of fibre optic isolater, including：Optically-active isolated core,
Optically-active isolated core is made up of magnet ring and the gyrotropi crystal component being fixed on inside magnet ring；First optical fiber collimator, the first optical fiber are accurate
The first openend and the fixation of magnet ring are stretched into the end of straight device；Second optical fiber collimator, the end of the second optical fiber collimator are stretched into
Second openend of magnet ring and fixation.Preferably, the centre being fixed on gyrotropi crystal component using heat curing-type glue inside magnet ring
Position, using heat curing-type glue by the first optical fiber collimator and the second optical fiber collimator be separately fixed at magnet ring the first openend and
Second openend.
Further, the first optical fiber collimator includes：First optical fiber head, the inner side end of the first optical fiber head is the first plane
And with the central shaft of the first optical fiber head into the first angle；First lens, the inner side ends of the first lens is for the second plane and with the
The central shaft of one optical fiber head is into the second angle, and the second angle is equal with the first angle, and the second plane is brought into close contact with the first plane
It is fixed；Second optical fiber collimator includes：Second optical fiber head, the inner side end of the second optical fiber head for the 3rd plane and with the second optical fiber
The central shaft of head is into the 3rd angle；Second lens, the inner side ends of the second lens for fourth plane and with the second optical fiber head
Mandrel is into the 4th angle, and the 4th angle is equal with the 3rd angle, and fourth plane is brought into close contact fixation with the 3rd plane.Preferably,
The second plane is bonded fixation with the first plane by heat curing-type glue respectively, fourth plane is bonded fixation with the 3rd plane.
Further, the first angle, the second angle, the 3rd angle, the 4th angle are all not equal to 90 degree.Preferably, first
Angle, the second angle, the 3rd angle, the 4th angle are all 82 degree.
Further, the first optical fiber head is equal with the diameter of the second optical fiber head, the diameter phase of the first lens and the second lens
Deng and less than the first optical fiber head diameter.Preferably, the diameter of the first optical fiber head and the second optical fiber head is all 1.0mm, and first is saturating
The diameter of mirror and the second lens is all 0.7mm.
Further, gyrotropi crystal component includes first crystal prism, faraday's crystal, the second crystal prism, faraday
Crystal is between first crystal prism and the second crystal prism, by first crystal prism, faraday's crystal and the second crystal rib
Mirror is brought into close contact integrally.First crystal prism, faraday's crystal and the second crystal prism are brought into close contact by heat curing-type glue
Integrally.
The beneficial effects of the utility model：The number of parts of fibre optic isolater is reduced to ultimate attainment, while processing technology
It is reduced to most simply, production cost is greatly reduced, while improve the reliability and service life of fibre optic isolater.
Brief description of the drawings
Fig. 1 is the structural representation of fibre optic isolater in the prior art；
Fig. 2 is the structural representation of the fibre optic isolater in one preferred embodiment of the utility model.
Embodiment
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings to this
The embodiment of utility model is described in detail.It should be noted that the utility model accompanying drawing is using simplified form
And non-accurately ratio is used, only to purpose that is convenient, lucidly aiding in illustrating the utility model embodiment.
It is the structural representation of the fibre optic isolater of the present embodiment shown in Fig. 2, it is accurate mainly includes optical fiber collimator 5, optical fiber
Straight device 6, optically-active isolated core 7, optically-active isolated core 7 are made up of magnet ring 71 and gyrotropi crystal component, and the end of optical fiber collimator 5 is stretched into
The second openend and the fixation of magnet ring 71 are stretched into first openend of magnet ring 71 and fixation, the end of optical fiber collimator 6.Use heat
Gyrotropi crystal component is fixed on the centre position inside magnet ring 71 by curable type glue.
Optical fiber collimator 5 includes optical fiber head 51 and lens 52, and the inner side end of optical fiber head 51 is plane, and with optical fiber head 51
Central shaft out of plumb.Preferably, the angle of inner side end and central shaft is 82 degree, that is, inner side end is the oblique of 8 degree of inclination
Plane.The first end face of lens 52 is plane, and the second end faces of lens 52 is sphere, inner side end and the lens 52 of optical fiber head 51
First end face be brought into close contact fixation using heat curing-type glue.Preferably, the first end face of lens 52 is also the tiltedly flat of 8 degree of inclination
Face, so it is bonded with the inner side end perfection of optical fiber head 51.A diameter of 1.0mm of optical fiber head 51, lens 52 it is a diameter of
0.7mm。
The structure of optical fiber collimator 6 is identical with optical fiber collimator 5, and optical fiber collimator 6 includes optical fiber head 61 and lens 62, light
For the inner side end of fibre first 61 to tilt 8 degree of tapered plane, the first end face of lens 62 is all the tapered plane of 8 degree of inclination.Lens 62
Second end face be sphere, the inner side end of optical fiber head 61 is brought into close contact solid with the first end face of lens 62 using heat curing-type glue
It is fixed.A diameter of 1.0mm of optical fiber head 61, a diameter of 0.7mm of lens 62.
Gyrotropi crystal component includes crystal prism 72, faraday's crystal 73, crystal prism 74, and faraday's crystal 73 is positioned at crystalline substance
It is using heat curing-type glue that crystal prism 72, faraday's crystal 73 and crystal prism 74 is tight between body prism 72 and crystal prism 74
Closely connected integrator.
The present embodiment is distinguished with conventional structure：
1st, the present embodiment using prefabricated optical fiber collimator 5 and optical fiber collimator 6 be touch structure collimater, only thoroughly
Two parts of mirror and optical fiber head, without the glass tube 13 and glass tube 33 of traditional collimater as shown in Figure 1.Part is saved, is saved into
This.
2nd, the present embodiment is slightly long by the magnet ring in conventional isolators, you can optical fiber collimator 5 and optical fiber collimator 6 is straight
Connect gluing to enter in magnet ring 71, it is not necessary to covering glass tube 4 as shown in Figure 1.It is compact-sized, part is saved, saves process.
3rd, the present embodiment uses prefabricated optical fiber collimator 5 and optical fiber collimator 6, and lens diameter omits than optical fiber head diameter
Small, lens are to touch gluing with optical fiber end surface.After optical fiber collimator size reduces, can directly it protrude into magnet ring 71.
The volume of isolator integral device reduces, and diameter drops to 2.0mm from 2.8mm.
The present embodiment fibre optic isolater manufacture craft is sketched：
1st, well in advance optical fiber collimator 5, optical fiber collimator 6, middle gyrotropi crystal component, adjust optical fiber collimator 5
After making optical property qualified with the posture of optical fiber collimator 6, optical fiber collimator 5 and optical fiber collimator 6 are fixed on magnet ring 71 with glue
In the endoporus at both ends, it is hard to be baked to glue.
2nd, the pre- making of optical fiber collimator 5 and optical fiber collimator 6：After optical fiber head and lens are held out against one is fixed into glue
Body, it is hard to be baked to glue.
3rd, the pre- making of gyrotropi crystal component：Crystal prism 72, faraday's crystal 73, crystal prism 74 are synthesized with sticker
Three groups, one reinstates the center that glue is fixed on magnet ring 71, is fixed with glue, it is hard to be baked to glue.
Preferred embodiment of the present utility model described in detail above.It should be appreciated that the ordinary skill people of this area
Member makes many modifications and variations without creative work can according to design of the present utility model.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to design of the present utility model in domain
Available technical scheme is tested, all should be in the protection domain being defined in the patent claims.
Claims (10)
- A kind of 1. fibre optic isolater, it is characterised in that including：Optically-active isolated core, the optically-active isolated core are made up of magnet ring and the gyrotropi crystal component being fixed on inside the magnet ring；The first openend and the fixation of the magnet ring are stretched into first optical fiber collimator, the end of first optical fiber collimator；The second openend and the fixation of the magnet ring are stretched into second optical fiber collimator, the end of second optical fiber collimator.
- 2. a kind of fibre optic isolater according to claim 1, it is characterised in that using heat curing-type glue by the gyrotropi crystal Component is fixed on the centre position inside the magnet ring, using heat curing-type glue by first optical fiber collimator and second light Fine collimater is separately fixed at the first openend and the second openend of the magnet ring.
- A kind of 3. fibre optic isolater according to claim 1, it is characterised in thatFirst optical fiber collimator includes：First optical fiber head, the inner side end of first optical fiber head for the first plane and with the central shaft of first optical fiber head into First angle；First lens, the inner side ends of first lens is for the second plane and with the central shaft of first optical fiber head into second Angle, second angle is equal with first angle, and second plane is brought into close contact fixation with first plane；Second optical fiber collimator includes：Second optical fiber head, the inner side end of second optical fiber head for the 3rd plane and with the central shaft of second optical fiber head into 3rd angle；Second lens, the inner side ends of second lens is for fourth plane and with the central shaft of second optical fiber head into the 4th Angle, the 4th angle is equal with the 3rd angle, and the fourth plane is brought into close contact fixation with the 3rd plane.
- A kind of 4. fibre optic isolater according to claim 3, it is characterised in that first angle, second angle, 3rd angle, the 4th angle are all not equal to 90 degree.
- A kind of 5. fibre optic isolater according to claim 4, it is characterised in that first angle, second angle, 3rd angle, the 4th angle are all 82 degree.
- 6. a kind of fibre optic isolater according to claim 3, it is characterised in that first optical fiber head and second light The diameter of fine head is equal, and first lens are equal with the diameter of second lens and straight less than first optical fiber head Footpath.
- 7. a kind of fibre optic isolater according to claim 6, it is characterised in that first optical fiber head and second light The diameter of fine head is all 1.0mm, and the diameter of first lens and second lens is all 0.7mm.
- 8. a kind of fibre optic isolater according to claim 3, it is characterised in that make described second by heat curing-type glue respectively Plane is bonded fixation with first plane, the fourth plane is bonded fixation with the 3rd plane.
- 9. a kind of fibre optic isolater according to claim 1, it is characterised in that it is brilliant that the gyrotropi crystal component includes first Body prism, faraday's crystal, the second crystal prism, faraday's crystal are located at the first crystal prism and second crystalline substance Between body prism, the first crystal prism, faraday's crystal and second crystal prism are brought into close contact integrally.
- 10. a kind of fibre optic isolater according to claim 9, it is characterised in that brilliant by described first by heat curing-type glue Body prism, faraday's crystal and second crystal prism are brought into close contact integrally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720899277.1U CN207096611U (en) | 2017-07-24 | 2017-07-24 | A kind of fibre optic isolater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720899277.1U CN207096611U (en) | 2017-07-24 | 2017-07-24 | A kind of fibre optic isolater |
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| CN207096611U true CN207096611U (en) | 2018-03-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107193137A (en) * | 2017-07-24 | 2017-09-22 | 上海伟钊光学科技股份有限公司 | A kind of fibre optic isolater |
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- 2017-07-24 CN CN201720899277.1U patent/CN207096611U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107193137A (en) * | 2017-07-24 | 2017-09-22 | 上海伟钊光学科技股份有限公司 | A kind of fibre optic isolater |
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Address after: Building 9, No. 2465, Hengcang Road, Jiading District, Shanghai, 201822 Patentee after: Shanghai Millimeter Star Optical Co.,Ltd. Address before: Building 9, No. 2465, Hengcang Road, Jiading District, Shanghai, 201822 Patentee before: SHANGHAI NEXTREND TECHNOLOGY CO.,LTD. |