CN208207286U - A kind of single-fiber bidirectional optical device - Google Patents
A kind of single-fiber bidirectional optical device Download PDFInfo
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- CN208207286U CN208207286U CN201820322827.8U CN201820322827U CN208207286U CN 208207286 U CN208207286 U CN 208207286U CN 201820322827 U CN201820322827 U CN 201820322827U CN 208207286 U CN208207286 U CN 208207286U
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Abstract
The utility model provides a kind of single-fiber bidirectional optical device, it is related to technical field of optical fiber communication, including laser, globe lens, single mode optical fiber adapter, photodetector, filter member and threeway pedestal, the laser, single mode optical fiber adapter are attached separately in the left and right ends mouthful of threeway pedestal, and the photodetector is in threeway pedestal top port, the globe lens is mounted in the light-emitting window of the laser, and the filter member is set to the threeway base interior.The utility model has filled up the blank of the blank single fiber transmission of single fiber bi-directional long distance transmission, transmits purposes suitable for the information of long range and high-speed transfer；Upstream and downstream passes through 45 degree of optical filters, to realize the effect for integrating sending and receiving, transmitted in both directions.
Description
Technical field
The utility model relates to technical field of optical fiber communication more particularly to a kind of single-fiber bidirectional opticals for integrating sending and receiving
Device.
Background technique
Low speed semiconductor laser is general using directly modulation when carrying out the transmitting of information.And work as semiconductor laser
In the case that high speed (10Gb/S) if directly modulated when, will generate frequency chirp (Chirp), and then influence transporting
Energy.In order to solve this problem, high speed, middle length away from Transmission system in, generally use electro-absorption modulation mode, and by its
It is packaged into TOSA form, here it is 10G EML TOSA, and if client such as needs 10G EML BOSA product, according to existing
There are the reasons such as technique cannot achieve.
In view of this, the applicant specializes in this, it, will be original by the design optimization of optical path and structure
TOSA be further packaged into can single fiber, two-way, long range, high-speed transfer optical device, to develop a kind of single fiber bi-directional
Thus optical device, this case generate.
Utility model content
In order to solve drawbacks described above existing in the prior art, the purpose of the utility model is to provide a kind of collection sending and receiving to be
The single-fiber bidirectional optical device of one, to achieve the goals above, the technical solution that the utility model is taken is as follows:
A kind of single-fiber bidirectional optical device, including laser, globe lens, single mode optical fiber adapter, photodetector, optical filter
Component and threeway pedestal, the laser, single mode optical fiber adapter are attached separately in the left and right ends mouthful of threeway pedestal, the light
For electric explorer in threeway pedestal top port, the globe lens is mounted in the light-emitting window of the laser, the optical filter portion
Part is set to the threeway base interior.
The filter member includes set on 0 degree of optical filter of threeway pedestal internal upper part and set on the threeway base central
(i.e. 0 degree of optical filter is horizontal positioned optical filter to the oblique optical filter of 45 degree of position, and 45 degree of oblique optical filters are to be in horizontal direction
The optical filter that 45 degree of angles are placed).
The center of 0 degree of filter center, the center on photodetector head and 45 degree of optical filters is in same vertical line
Upper (in i.e. same vertical optical path), laser light-emitting window center, globe lens center, 45 degree of oblique filter centers and single-mode optics
The center of fine adapter is on same level straight line (i.e. in same level optical path).
Preferably, the utility model single-fiber bidirectional optical device further includes being set to the threeway pedestal to be adapted to single mode optical fiber
Adjusting ring between device.
Preferably, the photodetector is 10Gb/S photodetector.
Preferably, the laser is EML TOSA laser.
Working principle of the utility model is:
1, the transmission network signal that single mode optical fiber and multimode fibre are provided to remote high quality come using, distinguish single
Mould and multimode are based on the circulation way of light inside it；Light is to be propagated in single mode optical fiber along straight line, without anti-
It penetrates, so its propagation distance is very remote, quickly, transmission range and speed are far longer than multimode fibre to speed, to have single fiber
The characteristics of long range high speed.
2, uplink: the laser beam that EML TOSA laser 1 issues stretches by the optics of globe lens 2, focal length is drawn
It is long, after being transmitted through 45 degree of optical filters 6, it is coupled into single mode optical fiber adapter, optical signal is sent out, completed in data
It passes；
3, downlink: input optical signal is conveyed by single mode optical fiber adapter, is first passed through 45 degree of optical filter total reflections, is arrived
Bandpass filtering is carried out after up to 0 degree of optical filter, after filtering out all wavelengths except wavelength needed for receiving, optical signal enters 10Gb/S
Photodetector completes data downloading, to realize the effect for integrating sending and receiving, transmitted in both directions.
The utility model is able to achieve following technical effect:
(1) utility model device has filled up the blank of the blank single fiber transmission of single fiber bi-directional long distance transmission, is suitable for
Over long distances and the information of high-speed transfer transmits purposes；
(2) upstream and downstream passes through 45 degree of optical filters, to realize the effect for integrating sending and receiving, transmitted in both directions.
Detailed description of the invention
Fig. 1 is the explosive view of the utility model single-fiber bidirectional optical device；
Fig. 2 is the index path of the utility model single-fiber bidirectional optical device；
Fig. 3 is the main view of the utility model single-fiber bidirectional optical device；
Fig. 4 is the top view of the utility model single-fiber bidirectional optical device.
Mark explanation: EML TOSA laser 1, light-emitting window 11, globe lens 2,3,0 degree of 10Gb/S photodetector optical filtering
Piece 4, threeway pedestal 5, left part port 51, right part port 52,53,45 degree of optical filters 6 of top port adjust ring 7, and single mode optical fiber is suitable
Orchestration 8.
Specific embodiment
In order to make the attainable technical effect of technological means and its institute of the utility model, more perfect take off can be become apparent from
Dew, hereby provides one embodiment, and be described in detail as follows in conjunction with attached drawing:
As shown in FIG. 1, FIG. 1 is the explosive view of the utility model single-fiber bidirectional optical device, a kind of single fiber of the present embodiment is double
To optical device, including EML TOSA laser 1, globe lens 2, single mode optical fiber adapter 8, photodetector 3, filter member and
Threeway pedestal 5, EML TOSA laser 1, single mode optical fiber adapter 8 are attached separately in the left and right ends mouthful of threeway pedestal 5, photoelectricity
For detector 3 in 5 top port of threeway pedestal, globe lens 2 is mounted in the light-emitting window of EML TOSA laser 1, filter member
Inside threeway pedestal 5.The present embodiment single-fiber bidirectional optical device further includes being set to threeway pedestal 5 and single mode optical fiber adapter 8
Between adjusting ring 7.
Filter member includes set on 0 degree of optical filter 4 of 5 internal upper part of threeway pedestal and set on 5 centre of threeway pedestal
45 degree of oblique optical filters, i.e. 0 degree of optical filter 4 is horizontal positioned optical filter, and 45 degree oblique optical filters are with horizontal direction in 45 degree
The optical filter that angle is placed
As shown in Fig. 2, Fig. 2 is the index path of the utility model single-fiber bidirectional optical device.0 degree of 4 center of optical filter, photoelectricity are visited
The center on 3 head of device and the center of 45 degree of optical filters 6 are surveyed on same vertical line, 1 light-emitting window center of EML TOSA laser, ball
The center at 2 center of lens, 45 degree of oblique filter centers and single mode optical fiber adapter 8 is on same level straight line, photodetector 3
For 10Gb/S photodetector 3.Therefore outside the present embodiment optical device successively are as follows: EML TOSA laser 1, is adjusted threeway pedestal 5
Save ring 7, single mode optical fiber adapter 8；Inside is successively are as follows: 2,45 degree of filters of globe lens.
Top in threeway pedestal 5 is equipped with horizontal bracket (not shown), for engaging 0 degree of optical filter 4, makes 0 degree of filter
One is formed at the top of mating plate 4 and threeway pedestal 5, the center in threeway pedestal 5 is equipped with the oblique branch from the horizontal by 45 degree of angles
Frame (not shown) makes 45 degree of oblique optical filters and threeway pedestal 5 be centrally formed one for engaging 45 degree of oblique optical filters.
As shown in figure 3, Fig. 3 is the main view of the utility model single-fiber bidirectional optical device, as shown in figure 4, Fig. 4 is that this is practical
The top view of novel single-fiber bidirectional optical device.
The working principle of the present embodiment:
Uplink: the laser beam that EML TOSA laser 1 issues is stretched by the optics of globe lens 2, by zoom in,
After degree of being transmitted through optical filter, it is coupled into single mode optical fiber adapter 8, optical signal is sent out, completed data and upload；
Downlink: input optical signal is conveyed by single mode optical fiber adapter 8, is first passed through 45 degree of optical filters 6 and is totally reflected, arrives
Bandpass filtering is carried out after up to 0 degree of optical filter 4, after filtering out all wavelengths except wavelength needed for receiving, optical signal enters 10Gb/
S photodetector 3 completes data downloading, to realize the effect for integrating sending and receiving, transmitted in both directions.
EML TOSA laser 1 is used to laser beam carrying out optics stretching for issuing laser beam, globe lens 2, will
Zoom in, 45 degree of optical filters 6 are used to projecting and being totally reflected optical path,
The docking of identical or different fiber active linker is mainly realized in the effect of fiber adapter in fibre circuit,
It is that it carries out that optical path is unimpeded under seldom loss, it is that two end face precisions of optical fiber are docked, so that launching fiber
The light energy of output can be coupled in reception optical fiber to the maximum extent, and make as its intervention optical link and caused by system
Influence minimizes.Single fiber adapter in the utility model is to dock single fiber optical path, is carried out under seldom loss
Optical path is unimpeded.
The above content is combination preferred embodiments of the present invention to further detailed made by provided technical solution
Describe in detail bright, and it cannot be said that the utility model specific implementation is confined to these above-mentioned explanations, technology affiliated for the utility model
For the those of ordinary skill in field, without departing from the concept of the premise utility, several simple deductions can also be made
Or replacement, it all shall be regarded as belonging to the protection scope of the utility model.
Claims (6)
1. a kind of single-fiber bidirectional optical device, including laser, globe lens, single mode optical fiber adapter, photodetector, optical filter portion
Part and threeway pedestal, it is characterised in that: the laser, single mode optical fiber adapter are attached separately to the left and right ends mouthful of threeway pedestal
Interior, for the photodetector in threeway pedestal top port, the globe lens is mounted in the light-emitting window of the laser, described
Filter member is set to the threeway base interior.
2. a kind of single-fiber bidirectional optical device as described in claim 1, it is characterised in that: the filter member includes being set to three
Lead to 0 degree of optical filter of pedestal internal upper part and 45 degree of oblique optical filters set on threeway base central position.
3. a kind of single-fiber bidirectional optical device as claimed in claim 2, it is characterised in that: 0 degree of filter center, photoelectricity are visited
The center on device head and the center of 45 degree of optical filters are surveyed on same vertical line, in laser light-emitting window center, globe lens
The center of the heart, 45 degree of oblique filter centers and single mode optical fiber adapter is on same level straight line.
4. a kind of single-fiber bidirectional optical device as described in claim 1, it is characterised in that: further include be set to the threeway pedestal with
Adjusting ring between single mode optical fiber adapter.
5. a kind of single-fiber bidirectional optical device as described in claim 1, it is characterised in that: the photodetector is 10Gb/S light
Electric explorer.
6. a kind of single-fiber bidirectional optical device as described in claim 1, it is characterised in that: the laser is EML TOSA laser
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820322827.8U CN208207286U (en) | 2018-03-09 | 2018-03-09 | A kind of single-fiber bidirectional optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820322827.8U CN208207286U (en) | 2018-03-09 | 2018-03-09 | A kind of single-fiber bidirectional optical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208207286U true CN208207286U (en) | 2018-12-07 |
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ID=64535731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820322827.8U Active CN208207286U (en) | 2018-03-09 | 2018-03-09 | A kind of single-fiber bidirectional optical device |
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| CN (1) | CN208207286U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782394A (en) * | 2019-03-15 | 2019-05-21 | 杭州芯耘光电科技有限公司 | A kind of single fiber bidirectional light receiving and transmitting component |
| CN110190901A (en) * | 2019-05-29 | 2019-08-30 | 武汉威盛通科技有限公司 | A kind of structural member and the optical transceiver module with the structural member |
-
2018
- 2018-03-09 CN CN201820322827.8U patent/CN208207286U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782394A (en) * | 2019-03-15 | 2019-05-21 | 杭州芯耘光电科技有限公司 | A kind of single fiber bidirectional light receiving and transmitting component |
| CN110190901A (en) * | 2019-05-29 | 2019-08-30 | 武汉威盛通科技有限公司 | A kind of structural member and the optical transceiver module with the structural member |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Miaoqing Inventor after: Fu Jiaqi Inventor before: Wang Miaoqing Inventor before: Fu Jiaqi |