CN103217742B - Optical circulator - Google Patents
Optical circulator Download PDFInfo
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- CN103217742B CN103217742B CN201310145075.4A CN201310145075A CN103217742B CN 103217742 B CN103217742 B CN 103217742B CN 201310145075 A CN201310145075 A CN 201310145075A CN 103217742 B CN103217742 B CN 103217742B
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- unit
- core
- shell body
- optical circulator
- magnetic bias
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- 230000003287 optical effect Effects 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000013307 optical fiber Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Abstract
An optical circulator comprises a shell body, a magnetic bias unit, a core body unit and a plurality of protecting cover units. The shell body comprises a base, and the middle of the base is sunk to form a groove. The magnetic bias unit is arranged inside the shell body and is arranged in the groove in a clamping mode. The core body unit comprises a plurality of core bodies which are arranged inside the shell body in a paralleled mode, and each core body penetrates through the magnetic bias unit. Each protecting cover unit comprises two protecting cover tubes arranged at two opposite side faces of the shell body in a penetrating mode correspondingly. The core bodies and the protecting cover units are arranged in correspondence, and vertical shafts of the two protecting cover tubes in each protecting cover unit are overlapped with the vertical central line of the corresponding core body. The optical circulator is compact in structure, and capable of reducing installing size greatly, reducing assembling difficulties, reducing production cost, and improving stability of a product.
Description
Technical field
The present invention relates to a kind of optical passive component, particularly relate to a kind of optical circulator.
Background technology
At modern fiber optic communication field, optical circulator is a kind of multiduty Primary Component.Optical circulator is arranged on the two ends of existing one-way communication optical fiber, can original optical fiber is made at once to possess two-way, than original twice transmittability.In addition, optical circulator is also applied in the systems such as dense wavelength division multiplexing device, fiber amplifier, dispersion compensation and optical time-domain analysis, but due to its complex structure, manufacture craft is difficult, so the cost of optical circulator remains high always.Meanwhile, existing optical circulator all only has a core body, when carrying out multipath signal propagation, then needs multiple optical circulator forming array, causes package dimension large, compact not; Equipment adjustment difficulty is large, increases operation requirements; Cost is high, and the production cost of product increases; And multiple optical circulator is installed together, reduces stability and the reliability of product.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of optical circulator, reduces installation dimension, reduces assembly difficulty, reduce production cost.
The present invention solves the problems of the technologies described above by the following technical programs: a kind of optical circulator, comprises a shell body, a magnetic bias unit, a core unit and a plurality of sheath unit; Described shell body comprises a base and a upper cover, and the middle part of this base, to lower recess, forms a groove; Be respectively equipped with a bolster between the front portion of described upper cover and described core unit, rear portion, and described bolster bonds with described core unit, upper cover and is connected respectively; Described magnetic bias unit is located in shell body, and is arranged in described groove; Described core unit comprises a plurality of core body be located at side by side in shell body, and every described core body is all through described magnetic bias unit; Described magnetic bias unit comprises two magnet ring covers, and the isolated body between described two magnet ring covers, and described magnet ring cover and isolated body are cuboid structure;
Every described sheath unit includes two protecting pipes that correspondence is arranged in the relative two sides of shell body; Described core body and sheath unit one_to_one corresponding are arranged, and the longitudinal axis of two protecting pipes often in this sheath unit all overlaps with the vertical center line of corresponding core body.
Preferably, described core unit comprises four core bodys; The quantity of described sheath unit is four.
Preferably, be respectively equipped with a steel pad between the front portion of described base and core unit, rear portion, and described steel pad bonds with core unit, base respectively.
Beneficial effect of the present invention is: compact conformation, substantially reduces installation dimension, reduces assembly difficulty, reduces production cost, and improves the stability of product.
Accompanying drawing explanation
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structural representation of a kind of optical circulator of the present invention.
Fig. 2 is the sectional elevation of a kind of optical circulator of the present invention.
Fig. 3 is the cut-open view along A-A direction in Fig. 1.
Fig. 4 is the cut-open view along B-B direction in Fig. 1.
Embodiment
Refer to Fig. 1-2, a kind of optical circulator, comprise shell body 1, magnetic bias unit 2, core unit 4 (see Fig. 4) and an a plurality of sheath unit 3; Described shell body 1 comprises upper cover 11 and a base 12, and the middle part of this base 12, to lower recess, forms a groove 121; A bolster 5 is respectively equipped with between the front portion of this upper cover 11 and described core unit 4, rear portion, and described bolster 5 bonds respectively with described core unit 4, upper cover 11 and is connected, arranging of bolster 5 can play buffer action, encounters upper cover 11 cause damaging to avoid core body.
Referring again to Fig. 2-4, described magnetic bias unit 2 is located in shell body 1, and is arranged in described groove 121; Described magnetic bias unit 2 comprises two magnet ring covers 21, and the isolated body 22 between described two magnet ring covers 21, and described magnet ring cover 21 and isolated body 22 are cuboid structure.Be respectively equipped with a steel pad 6 between the front portion of described base 12 and core unit 4, rear portion, and described steel pad 6 bonds with core unit 4, base 12 respectively, can determine the position between several core unit relatively accurately, play good supporting role.
Referring again to Fig. 2-4, described core unit 4 comprises a plurality of four core bodys 41 be located at side by side in shell body 1, and every described core body 41 is all through described magnetic bias unit 2; Described core unit 4 is preferably containing four core bodys 41.Every described sheath unit 3 includes two protecting pipes 31 that correspondence is arranged in the relative two sides of shell body 1; The quantity of described sheath unit is preferably four.Described core body 41 and sheath unit 3 one_to_one corresponding are arranged, and the longitudinal axis of two protecting pipes 31 often in this sheath unit 3 all overlaps with the vertical center line of corresponding core body 41.Protecting pipe 31 can adopt plastic tube, and the setting of protecting pipe 31 is used for allowing optical fiber cable pass through, and optical fiber cable is not easily broken.
When applying the invention, first magnetic bias unit 2 is placed in the groove 121 of base 12, again described steel pad 6 is adhered on base 12, by each core body 41 through magnetic bias unit 2, then bolster 5 is placed in core unit 4, cover described upper cover 11, compress, bonded respectively in the front portion of each core body 41, rear portion in assembling process simultaneously with steel pad 6, bolster 5, bolster 5 and upper cover 11 are also glued.
The array that the present invention is equivalent to being made up of existing four optical circulators is integrated into an optical circulator, and compact conformation, substantially reduces installation dimension, reduces production cost; The a series of actions such as each device originally in optical circulator array will carry out assembling one by one, test, the present invention effectively saves operation steps, reduces assembly difficulty; During owing to being subject to the impact of the aspects such as device rapidoprint, environment temperature, device formation as environmental change, existing optical circulator part performance easily changes, and four core bodys 41 are integrated in same shell body 1 by the present invention, during forming array structure, less by external action, product stability is better.Because optical circulator is assembled by multiple material, the internal stress, assembly structure etc. that cause in the expansion coefficient of various material, density of material assembling process are different, when environmental change, the performance of device can change, adopt array structure due to compacter, sealing property is better, above-mentioned several parameter is less by external action, and that is overall device performance change is little namely more stable.
Claims (3)
1. an optical circulator, is characterized in that: comprise a shell body, a magnetic bias unit, a core unit and a plurality of sheath unit; Described shell body comprises a base and a upper cover, and the middle part of this base, to lower recess, forms a groove; Be respectively equipped with a bolster between the front portion of described upper cover and described core unit, rear portion, and described bolster bonds with described core unit, upper cover and is connected respectively; Described magnetic bias unit is located in shell body, and is arranged in described groove; Described core unit comprises a plurality of core body be located at side by side in shell body, and every described core body is all through described magnetic bias unit; Described magnetic bias unit comprises two magnet ring covers, and the isolated body between described two magnet ring covers, and described magnet ring cover and isolated body are cuboid structure;
Every described sheath unit includes two protecting pipes that correspondence is arranged in the relative two sides of shell body; Described core body and sheath unit one_to_one corresponding are arranged, and the longitudinal axis of two protecting pipes often in this sheath unit all overlaps with the vertical center line of corresponding core body.
2. a kind of optical circulator as claimed in claim 1, is characterized in that: described core unit comprises four core bodys; The quantity of described sheath unit is four.
3. a kind of optical circulator as claimed in claim 1, is characterized in that: be respectively equipped with a steel pad between the front portion of described base and core unit, rear portion, and described steel pad bonds with core unit, base respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310145075.4A CN103217742B (en) | 2013-04-24 | 2013-04-24 | Optical circulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310145075.4A CN103217742B (en) | 2013-04-24 | 2013-04-24 | Optical circulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103217742A CN103217742A (en) | 2013-07-24 |
| CN103217742B true CN103217742B (en) | 2015-04-22 |
Family
ID=48815690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310145075.4A Active CN103217742B (en) | 2013-04-24 | 2013-04-24 | Optical circulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103217742B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107015313A (en) * | 2017-04-27 | 2017-08-04 | 上海中科创欣通讯设备有限公司 | A kind of method for optimizing optical circulator Insertion Loss |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2226355Y (en) * | 1994-12-29 | 1996-05-01 | 深圳开发科技股份有限公司 | Light isolator |
| CN2482105Y (en) * | 2001-06-07 | 2002-03-13 | 福建华科光电有限公司 | Circulator |
| US6580842B1 (en) * | 2002-02-11 | 2003-06-17 | Markus P. Hehlen | Integrated optical circulator array |
| JP5125467B2 (en) * | 2007-12-11 | 2013-01-23 | 日本電気硝子株式会社 | Optical device |
-
2013
- 2013-04-24 CN CN201310145075.4A patent/CN103217742B/en active Active
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| Publication number | Publication date |
|---|---|
| CN103217742A (en) | 2013-07-24 |
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