CN201600468U - Optical isolator - Google Patents
Optical isolator Download PDFInfo
- Publication number
- CN201600468U CN201600468U CN2009201819433U CN200920181943U CN201600468U CN 201600468 U CN201600468 U CN 201600468U CN 2009201819433 U CN2009201819433 U CN 2009201819433U CN 200920181943 U CN200920181943 U CN 200920181943U CN 201600468 U CN201600468 U CN 201600468U
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- CN
- China
- Prior art keywords
- collimation unit
- isolated core
- tube sealing
- optoisolator
- collimation
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides an optical isolator which comprises a first collimation unit, a second collimation unit, an isolating core, an inner sealed tube and an outer sealed tube, wherein the first collimation unit, the second collimation unit and the isolating core are positioned inside the inner sealed tube; the inner sealed tube is arranged inside the outer sealed tube; and the isolating core is positioned between the first collimation unit and the second collimation unit and the isolating core is directly fixed to the inner sealed tube. The optical isolator has higher reliability.
Description
Technical field
The utility model relates to a kind of optical passive component, especially a kind of optoisolator.
Background technology
Light signal transmits a plurality of different optical interfaces of regular meeting's process often in optical communication system, and the light that all can produce in various degree at each optical interface reflects.The return light may that reflection produces may be passed light source back along original optical path, and when return light may intensity is accumulated to a certain degree, can influence problems such as the stability of light source works and generation frequency drift, thereby may influence the operate as normal of total system.Therefore, for guaranteeing the craftmanship of optical communication system, need employing optoisolator is eliminated the return light may in the light path usually.
Optoisolator is to allow light to stop the passive device of transmission round about, its work to be based on the nonreciprocity of faraday's rotation towards a direction transmission.
See also Fig. 1, a kind of existing optoisolator 10 comprises the first collimation unit 11, the second collimation unit 12, isolated core 13, interior envelope glass tube 14 and external package pipe 15.Wherein, interior envelope glass tube 14 is contained in the external package pipe 15, and the first collimation unit 11, the second collimation unit 12 are positioned at envelope glass tube 14 with isolated core 13.And the first collimation unit 11 and the second collimation unit 12 fix with interior envelope glass tube 14, and isolated core 13 is fixed on the lens 112 of the first collimation unit 11.
Yet, when being given a shock in the optoisolator 10, isolated core 13 is followed easily and is shaken, and then may cause isolated core 13 to come off from the lens 112 of the first collimation unit 11, and lens 112 also are subjected to isolated core 13 easily and rock the actions of gravity of the inertial force of generation and isolated core 13 itself and rupture.Therefore the reliability of above-mentioned optoisolator 10 is relatively poor.
The utility model content
In view of above-mentioned condition, be necessary to provide a kind of optoisolator that can improve reliability.
A kind of optoisolator, it comprises the first collimation unit, the second collimation unit, isolated core, interior tube sealing and external package pipe.The first collimation unit, the second collimation unit and isolated core are positioned at tube sealing, and interior tube sealing is located in the external package pipe.Wherein, isolated core between the first collimation unit and the second collimation unit and isolated core directly and interior tube sealing fix.
The isolated core of above-mentioned optoisolator is directly fixed on interior tube sealing, even therefore optoisolator integral body is given a shock, isolated core in interior tube sealing also can be avoided shaking, thereby can guarantee that the matching relationship between the isolated core and the first collimation unit and the second collimation unit is constant, and avoid the lens of the first collimation unit or the second collimation unit to be subjected to the influence of isolated core and phenomenon such as fracture takes place, and then can improve the reliability of isolator.
Description of drawings
Fig. 1 is a kind of diagrammatic cross-section of existing optoisolator.
Fig. 2 is the diagrammatic cross-section of the optoisolator of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples optoisolator of the present utility model is described in further detail.
See also Fig. 2, the optoisolator 20 of the utility model embodiment comprises the first collimation unit 21, the second collimation unit 22, isolated core 23, interior tube sealing 24 and external package pipe 25.Wherein, interior tube sealing 24 is arranged in the external package pipe 25, and the first collimation unit 21, the second collimation unit 22 are positioned at tube sealing 24 with isolated core 23.Isolated core 23 is between the first collimation unit 21 and the second collimation unit 22, and isolated core 23 directly fixes with interior tube sealing 24.
Specifically, the first collimation unit 21 is respectively applied for input optical fibre 26 and output optical fibre 27 with the second collimation unit 22 and is connected.And the first collimation unit 21 and the second collimation unit 22 can fix with interior tube sealing 24, and its fixing method can adopt glue (for example ultraviolet lights curing glue) to fix; But need to prove that the utility model is not as limit.
Isolated core 23 can have magnet ring 232, and the outer wall of magnet ring 232 and interior tube sealing 24 offset; And, fixing can being adhesively fixed between isolated core 23 and the interior tube sealing 24 by glue, this glue is preferably high-temp glue.
Because tube sealing 24 in isolated core 23 is directly fixed on, even therefore optoisolator 20 integral body are given a shock, isolated core 23 in interior tube sealing 24 also can be avoided shaking, thereby can guarantee that the matching relationship between the isolated core 23 and the first collimation unit 21 and the second collimation unit 22 is constant, and avoid the lens 212,222 of the first collimation unit 21 or the second collimation unit 22 to be subjected to the influence of isolated core 23 and phenomenon such as fracture takes place, and then can improve the reliability of isolator 20.
In addition, those skilled in the art also can do other variation in the utility model spirit, and certainly, the variation that these are done according to the utility model spirit all should be included in the utility model scope required for protection.
Claims (4)
1. optoisolator, it comprises the first collimation unit, the second collimation unit, isolated core, interior tube sealing and external package pipe, this first collimation unit, this second collimation unit and this isolated core are positioned at this tube sealing, should in tube sealing be located in this external package pipe, it is characterized in that: this isolated core between this first collimation unit and this second collimation unit and this isolated core directly be somebody's turn to do in tube sealing fix.
2. optoisolator as claimed in claim 1 is characterized in that: tube sealing fixed in this first collimation unit and this second collimation unit solidified glue and are somebody's turn to do by ultraviolet lights.
3. optoisolator as claimed in claim 1 is characterized in that: this isolated core has magnet ring, and the outer wall of this magnet ring offsets with this interior tube sealing.
4. optoisolator as claimed in claim 1 is characterized in that: this isolated core is bonding fixing by the interior tube sealing of glue and this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201819433U CN201600468U (en) | 2009-12-31 | 2009-12-31 | Optical isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201819433U CN201600468U (en) | 2009-12-31 | 2009-12-31 | Optical isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201600468U true CN201600468U (en) | 2010-10-06 |
Family
ID=42811532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201819433U Expired - Fee Related CN201600468U (en) | 2009-12-31 | 2009-12-31 | Optical isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201600468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293605A (en) * | 2013-05-11 | 2013-09-11 | 广州奥鑫通讯设备有限公司 | High-performance integrated optical device and preparation method thereof |
-
2009
- 2009-12-31 CN CN2009201819433U patent/CN201600468U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293605A (en) * | 2013-05-11 | 2013-09-11 | 广州奥鑫通讯设备有限公司 | High-performance integrated optical device and preparation method thereof |
| CN103293605B (en) * | 2013-05-11 | 2016-01-20 | 广州奥鑫通讯设备有限公司 | A kind of high-performance integrated optical device and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20101006 Termination date: 20101231 |