CN209446828U - A kind of thin wavelength division multiplexer of polarization-maintaining - Google Patents
A kind of thin wavelength division multiplexer of polarization-maintaining Download PDFInfo
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- CN209446828U CN209446828U CN201822193323.3U CN201822193323U CN209446828U CN 209446828 U CN209446828 U CN 209446828U CN 201822193323 U CN201822193323 U CN 201822193323U CN 209446828 U CN209446828 U CN 209446828U
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- collimator
- glass tube
- optical fibre
- polarization
- capillary
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Abstract
The utility model discloses a kind of thin wavelength division multiplexer of polarization-maintaining, including glass tube, the middle position of the glass tube is equipped with filtering assembly, and the glass tube of filtering assembly two sides is respectively equipped with first collimator and the second collimator, the first capillary is equipped with close to the side of first collimator in the glass tube, and first is inserted with input polarization maintaining optical fibre in capillary, the input polarization maintaining optical fibre is equipped with multiple groups, and the one end for inputting polarization maintaining optical fibre extends in first collimator, the junction of the input polarization maintaining optical fibre and the first capillary is equipped with the first wrap, the second capillary is equipped with close to the side of the second collimator in the glass tube, and second is inserted with output polarization maintaining optical fibre in capillary, one end of the output polarization maintaining optical fibre extends in the second collimator；The utility model protects optical fiber by wrap, and junction is avoided to fracture, and the utility model reinforces glass tube, avoids cracking, and guarantees internal element on the same axis, avoids shifting.
Description
Technical field
The utility model relates to equipment technical field more particularly to a kind of thin wavelength division multiplexers of polarization-maintaining.
Background technique
Fibre Optical Communication Technology is widely used in telecommunications, data transmission and cable television, high performance fiber optic communication system
System requires optical module therein to have good optical property and temperature stability, in order to transmit multichannel letter in same root optical fiber
Number, it in the prior art in use of wavelength division multiplexing (wavelength-divisionmultiplexing, abbreviation WDM), can be simultaneously
Two or more optical wavelength signals are allowed respectively to transmit information by different optical channels, wavelength-division multiplex technique is multiple by wavelength-division
It is realized with device, existing wavelength division multiplexer optical fiber in use easily snaps off damage in link position, at optical signal transmission
Failure, and the canals of stilling of wavelength division multiplexer is easy cracking, causes internal element to shift, therefore, the utility model proposes one kind
The thin wavelength division multiplexer of polarization-maintaining is to solve problems of the prior art.
Utility model content
In view of the above-mentioned problems, the utility model proposes a kind of thin wavelength division multiplexer of polarization-maintaining, the thin wavelength division multiplexer of the polarization-maintaining
It inputs and is equipped with the first wrap at the access of polarization maintaining optical fibre and the first capillary, export the access of polarization maintaining optical fibre and the second capillary
Place is equipped with the second wrap, is conducive to protect optical fiber, avoids junction from fractureing, and outside the glass tube of the thin wavelength division multiplexer of the polarization-maintaining
Side is equipped with reinforcing pipe, is conducive to protect glass tube, avoids cracking, guarantees internal element on the same axis, avoid shifting.
To solve the above-mentioned problems, the utility model proposes a kind of thin wavelength division multiplexer of polarization-maintaining, including glass tube, the glass
Middle position inside glass pipe is equipped with filtering assembly, and the glass tube of filtering assembly two sides is respectively equipped with first collimator
With the second collimator, the first capillary, and the first capillary interpolation are equipped with close to the side of first collimator in the glass tube
Equipped with input polarization maintaining optical fibre, the input polarization maintaining optical fibre is equipped with multiple groups, and the one end for inputting polarization maintaining optical fibre extends to the first collimation
In device, the junction of the input polarization maintaining optical fibre and the first capillary is equipped with the first wrap, close second in the glass tube
The side of collimator is equipped with the second capillary, and output polarization maintaining optical fibre is inserted in the second capillary, the output polarization maintaining optical fibre
One end extend in the second collimator, the junction of the output polarization maintaining optical fibre and the second capillary is equipped with the second wrap.
Further improvement lies in that: the first collimator is identical as the structure of the second collimator, and include tail optical fiber pipe and
Collimation lens, the collimation lens are set to the side inside tail optical fiber pipe.
Further improvement lies in that: the middle position on the outside of the glass tube is equipped with reinforcing pipe, and the reinforcing pipe is coated on
On the outside of glass tube at the filtering assembly, first collimator and the second collimator position.
Further improvement lies in that: the filtering assembly includes installing ring and optical filter, and the optical filter is set to installing ring
Inside, filter coating is coated on the optical filter, and the outside of the installing ring is equipped with glue-filling slot.
Further improvement lies in that: the glass tube is that outer diameter is 3.4mm, the reinforcing pipe with a thickness of 0.55mm.
The utility model has the following beneficial effects: being set at the input polarization maintaining optical fibre of the utility model and the access of the first capillary
There is the first wrap, export and be equipped with the second wrap at the access of polarization maintaining optical fibre and the second capillary, is conducive to protect optical fiber, keep away
Exempt from junction to fracture, and be equipped with reinforcing pipe on the outside of the glass tube of the utility model, is conducive to protect glass tube, avoids cracking, protect
It demonstrate,proves internal element on the same axis, avoids shifting, meanwhile, the optical filter of the utility model is equipped with filter coating, optimizes wave
Long to distinguish effect, installing ring is externally provided with glue-filling slot, keeps filtering assembly fixation after encapsulating stronger, is not easy deflection.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model.
Fig. 2 is the first, second collimator structure schematic diagram of the utility model.
Fig. 3 is the filtering assembly structural schematic diagram of the utility model.
Wherein: 1- glass tube, 2- filtering assembly, 3- first collimator, the second collimator of 4-, the first capillary of 5-, 6- are defeated
Entering polarization maintaining optical fibre, the first wrap of 7-, the second capillary of 8-, 9- exports polarization maintaining optical fibre, the second wrap of 10-, 11- tail optical fiber pipe,
12- collimation lens, 13- reinforcing pipe, 14- installing ring, 15- optical filter, 16- filter coating, 17- glue-filling slot.
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is further described below in conjunction with embodiment,
The present embodiment is only used for explaining the utility model, does not constitute the restriction to scope of protection of the utility model.
According to Fig. 1,2,3, a kind of thin wavelength division multiplexer of polarization-maintaining, including glass tube 1, the glass are present embodiments provided
Middle position inside glass pipe 1 is equipped with filtering assembly 2, and the first standard is respectively equipped with inside the glass tube 1 of 2 two sides of filtering assembly
Straight device 3 and the second collimator 4 are equipped with the first capillary 5, and first mao close to the side of first collimator 3 in the glass tube 1
Input polarization maintaining optical fibre 6 is inserted in tubule 5, the input polarization maintaining optical fibre 6 is equipped with multiple groups, and the one end for inputting polarization maintaining optical fibre 6 is prolonged
It extends in first collimator 3, the junction of the input polarization maintaining optical fibre 6 and the first capillary 5 is equipped with the first wrap 7, protection
Polarization maintaining optical fibre 6 is inputted, avoids fractureing impaired, is equipped with the second capillary 8 close to the side of the second collimator 4 in the glass tube 1,
And second is inserted with output polarization maintaining optical fibre 9 in capillary 8, one end of the output polarization maintaining optical fibre 9 extends to the second collimator 4
Interior, the junction of the output polarization maintaining optical fibre 9 and the second capillary 8 is equipped with the second wrap 10, and protection exports polarization maintaining optical fibre 9,
It avoids fractureing impaired, when use, polarised light is input to by filtering assembly by input polarization maintaining optical fibre 6 and first collimator 3
2, polarised light is distinguished by 2 wavelength of filtering assembly, then is transported to the second collimator 4, exports thin wavelength-division by output polarization maintaining optical fibre 9
(DWDM) wavelength light is to optical detector.
The first collimator 3 is identical as the structure of the second collimator 4, and include tail optical fiber pipe 11 and collimation lens 12,
The collimation lens 12 is set to the side inside tail optical fiber pipe 11, and it is (parallel that the transmission light in optical fiber can be transformed into collimated light
Light).
The middle position in 1 outside of glass tube is equipped with reinforcing pipe 13, and the reinforcing pipe 13 is coated on the optical filtering group
1 outside of glass tube at 4 position of part 2, first collimator 3 and the second collimator, protects glass tube 1 and internal element.
The filtering assembly 2 includes installing ring 14 and optical filter 15, and the optical filter 15 is set to the inside of installing ring 14, institute
It states and is coated with filter coating 16 on optical filter 15, convenient for distinguishing to wavelength, the outside of the installing ring 14 is equipped with glue-filling slot 17, makes
Filtering assembly fixation is stronger after encapsulating, is not easy deflection.
It is 3.4mm that the glass tube 1, which is outer diameter, the reinforcing pipe 13 with a thickness of 0.55mm.
The first wrap is equipped at the access of the input polarization maintaining optical fibre 6 and the first capillary 5 of the thin wavelength division multiplexer of the polarization-maintaining
7, it exports and is equipped with the second wrap 10 at the access of polarization maintaining optical fibre 9 and the second capillary 8, be conducive to protect optical fiber, avoid joining
Place fractures, and reinforcing pipe 13 is equipped on the outside of the glass tube 1 of the thin wavelength division multiplexer of the polarization-maintaining, is conducive to protect glass tube 1, avoid out
It splits, guarantees internal element on the same axis, avoid shifting, meanwhile, the optical filter 15 of the thin wavelength division multiplexer of the polarization-maintaining is equipped with
Filter coating 16, optimization wavelength distinguish effect, and installing ring 14 is externally provided with glue-filling slot 17, keep the fixation of filtering assembly 2 after encapsulating more firm
Gu being not easy deflection.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention.The utility model requires protection scope
It is defined by the appending claims and its equivalent thereof.
Claims (5)
1. a kind of thin wavelength division multiplexer of polarization-maintaining, including glass tube (1), it is characterised in that: the internal interposition of the glass tube (1)
It sets place and is equipped with filtering assembly (2), and be respectively equipped with first collimator (3) and the inside the glass tube (1) of filtering assembly (2) two sides
Two collimators (4), the side in the glass tube (1) close to first collimator (3) are equipped with the first capillary (5), and first mao
Input polarization maintaining optical fibre (6) is inserted in tubule (5), the input polarization maintaining optical fibre (6) is equipped with multiple groups, and inputs polarization maintaining optical fibre (6)
One end extend in first collimator (3), the junction of input polarization maintaining optical fibre (6) and the first capillary (5) is equipped with the
One wrap (7), the side in the glass tube (1) close to the second collimator (4) are equipped with the second capillary (8), and second mao
Output polarization maintaining optical fibre (9) is inserted in tubule (8), one end of output polarization maintaining optical fibre (9) extends to the second collimator (4)
Interior, the junction of output polarization maintaining optical fibre (9) and the second capillary (8) is equipped with the second wrap (10).
2. the thin wavelength division multiplexer of a kind of polarization-maintaining according to claim 1, it is characterised in that: the first collimator (3) with
The structure of second collimator (4) is identical, and includes tail optical fiber pipe (11) and collimation lens (12), and the collimation lens (12) is set to
The internal side of tail optical fiber pipe (11).
3. the thin wavelength division multiplexer of a kind of polarization-maintaining according to claim 1, it is characterised in that: on the outside of the glass tube (1)
Middle position be equipped with reinforcing pipe (13), the reinforcing pipe (13) be coated on the filtering assembly (2), first collimator (3) and
On the outside of glass tube (1) at second collimator (4) position.
4. the thin wavelength division multiplexer of a kind of polarization-maintaining according to claim 1, it is characterised in that: the filtering assembly (2) includes
Installing ring (14) and optical filter (15), the optical filter (15) are set to the inside of installing ring (14), apply on the optical filter (15)
It is covered with filter coating (16), the outside of the installing ring (14) is equipped with glue-filling slot (17).
5. the thin wavelength division multiplexer of a kind of polarization-maintaining according to claim 3, it is characterised in that: the glass tube (1) is
Outer diameter is 3.4mm, the reinforcing pipe (13) with a thickness of 0.55mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822193323.3U CN209446828U (en) | 2018-12-26 | 2018-12-26 | A kind of thin wavelength division multiplexer of polarization-maintaining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822193323.3U CN209446828U (en) | 2018-12-26 | 2018-12-26 | A kind of thin wavelength division multiplexer of polarization-maintaining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209446828U true CN209446828U (en) | 2019-09-27 |
Family
ID=68015412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822193323.3U Active CN209446828U (en) | 2018-12-26 | 2018-12-26 | A kind of thin wavelength division multiplexer of polarization-maintaining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209446828U (en) |
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2018
- 2018-12-26 CN CN201822193323.3U patent/CN209446828U/en active Active
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