CN208547749U - The double luminous road systems of double receipts of single fiber - Google Patents
The double luminous road systems of double receipts of single fiber Download PDFInfo
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- CN208547749U CN208547749U CN201821215085.5U CN201821215085U CN208547749U CN 208547749 U CN208547749 U CN 208547749U CN 201821215085 U CN201821215085 U CN 201821215085U CN 208547749 U CN208547749 U CN 208547749U
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- 230000003287 optical effect Effects 0.000 claims abstract description 98
- 239000013307 optical fiber Substances 0.000 claims abstract description 27
- 230000009977 dual effect Effects 0.000 claims abstract description 6
- 210000004209 hair Anatomy 0.000 claims description 3
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Abstract
The utility model relates to technical field of optical fiber communication, in particular to the double luminous road systems of double receipts of single fiber, its use multiple groups optical transceiver module respectively correspond multimode laser different wave length light emitting/receiving port, by transmitting terminal collimation lens, transmitting terminal wave plate and primary optical axis wave plate equipped with inclination angle realize the light emitting port by multimode laser to the light emitting optical path of optical fiber end collimation lens and fiber port, by above-mentioned primary optical axis wave plate, transmitting terminal wave plate, reflecting mirror and receiving end collimation lens are realized by fiber port, light-receiving optical path of the optical fiber end collimation lens to the light-receiving port of multimode laser.Co-wavelength light can be realized via the light emitting and light-receiving in different channels in one group of optical transceiver module of the double luminous road systems of double receipts of the single fiber, it is at high cost to solve the problems, such as that four-way is made using four DFB single-mode lasers for the four-way wavelength-division multiplex that two receptions, two transmission channels can be realized using a multimode laser with dual wavelength.
Description
Technical field
The utility model relates to technical field of optical fiber communication, the in particular to double luminous road systems of double receipts of single fiber.
Background technique
With the development of the technologies such as internet, big data, artificial intelligence, the transmission rate of fiber optic network data is wanted in market
It asks higher and higher, develops to current 25G, 40G, 100G even 400G from 1G, 10G.Since chip material itself limits and is promoted
Limitation in rate, the maximum transmission rate for causing one chip that can reach were promoted slowly, and mainstream chip only supports 25G at present
Transmission rate, be unable to satisfy demand of the market to high transfer rate.In order to meet the needs of market is to high transfer rate, multi-pass
Road wavelength-division multiplex system is widely used, and multiple channels are combined by wavelength-division multiplex system, promote optical fiber with this
The transmission rate of network entirety.The technology of mainstream is four-way wavelength-division multiplex at present, and the transmission of 40G is such as realized using 4*10G
Rate realizes the transmission rate of 100G using 4*25G.
Currently, mainly there are four receiving channels or four transmission channels or two to connect for four-way wavelength-division multiplex technique
Two transmission channel these typess are received, as shown in Figure 1, each of which is received and transmission channel all carries out wave using different wavelength
Divide multiplexing, four channels need to provide four different wavelength to carry out wavelength-division multiplex, and it is mono- that each channel needs to be equipped with a DFB
Mode laser generates specific wavelength, and DFB single-mode laser higher cost, is unfavorable for producing in batches.
Utility model content
The purpose of this utility model is that the double receipts for avoiding above-mentioned shortcoming in the prior art and providing single fiber are double
Luminous road system reduces equipment cost.
To achieve the above object, the double luminous road systems of double receipts of single fiber are provided, including fiber port, optical fiber end collimation are thoroughly
Mirror, optical transceiver module and multimode laser, the optical transceiver module include transmitting terminal collimation lens, transmitting terminal wave plate, primary optical axis
Wave plate, reflecting mirror and receiving end collimation lens, the primary optical axis wave plate and the fiber port, the setting of optical fiber end collimation lens exist
On same primary optical axis L；
The primary optical axis wave plate is directed at the light emitting port of the multimode laser and inclines towards the optical fiber end collimation lens
Tiltedly, so that the light projected from the light emitting port is successively after transmitting terminal collimation lens and transmitting terminal wave plate, through the key light
Enter optical fiber end collimation lens along the primary optical axis L after the reflection of axis wave plate；
The light being mapped on the primary optical axis wave plate from the optical fiber end collimation lens is reflected back toward the transmitting terminal wave plate, warp
Enter the light-receiving port corresponding with the light emitting port of the multimode laser after the transmitting terminal wave plate reflection；
The optical transceiver module has multiple groups, and each group optical transceiver module respectively corresponds the different wave length of the multimode laser
Light emitting/receiving port.
Wherein, the transmitting terminal wave plate tilts light and the master so that its light-receiving port for being reflected into multimode laser
The position of optical axis wave plate is staggered.
Wherein, the light emitting port and light-receiving port of the multimode laser are located at the ipsilateral of the primary optical axis L, described
Optical transceiver module further includes reflecting mirror of the reflecting surface towards the light-receiving port, and the light after transmitting terminal wave plate reflection is by this
Enter the light-receiving port of the multimode laser after reflecting mirror reflection.
Wherein, the reflecting mirror is located at the side opposite with the multimode laser primary optical axis L.
Wherein, the reflecting surface of the reflecting mirror is parallel with primary optical axis L, and multiple groups optical transceiver module shares the reflecting mirror.
Wherein, the angle of the reflecting surface of primary optical axis wave plate and primary optical axis L are 45 degree.
Wherein, the angle of the reflecting surface of transmitting terminal wave plate and primary optical axis L are between 15 degree to 60 degree.
Wherein, it is equipped between transmitting terminal collimation lens and transmitting terminal wave plate for stopping the light through transmitting terminal wave plate to enter
The isolator of transmitting terminal collimation lens.
Wherein, the multimode laser is dual wavelength multimode VCSEL laser.
The utility model has the advantages that the double luminous road systems of double receipts of the single fiber, respectively correspond multimode using multiple groups optical transceiver module and swash
Light emitting/receiving port of the different wave length of light device, by transmitting terminal collimation lens, transmitting terminal wave plate and equipped with the primary optical axis at inclination angle
Wave plate realize by multimode laser light emitting port to optical fiber end collimation lens and fiber port light emitting optical path, by above-mentioned
Primary optical axis wave plate, transmitting terminal wave plate, reflecting mirror and receiving end collimation lens are realized by fiber port, optical fiber end collimation lens to more
The light-receiving optical path of the light-receiving port of mode laser.One group of optical transceiver module of the double luminous road systems of double receipts of the single fiber is
Co-wavelength light can be achieved via the light emitting and light-receiving in different channels, using a multimode laser with dual wavelength
The four-way wavelength-division multiplex for realizing two receptions, two transmission channels, solve four-way is made using four DFB single-mode lasers
Obtain problem at high cost.
Detailed description of the invention
Fig. 1 is the double schematic diagrames for receiving optical path of the double hairs of four-way in the prior art based on four DFB single-mode lasers.
Fig. 2 is the schematic diagram of the four-way optical path of the double luminous road systems of double receipts of the single fiber.
Appended drawing reference: 1. multimode VCSEL lasers, 2. first transmitting terminal collimation lenses, 3. first isolators, 4. first hairs
Penetrate end wave plate, 5. first primary optical axis wave plates, 6. optical fiber end collimation lenses, 7. fiber ports, 8. reflecting mirrors, 9. first receiving ends standard
Straight lens, 10. second transmitting terminal collimation lenses, 11. second isolators, 12. second transmitting terminal wave plates, 13. second primary optical axis waves
Piece, 14. second receiving end collimation lenses.
Specific embodiment
As shown in Fig. 2, multimode VCSEL laser 1 of the double luminous road systems of double receipts of the single fiber using dual wavelength, two
A wavelength X 1 and λ 2 are respectively 850nm and 960nm, and right-to-left is followed successively by the first light-receiving port λ of the optical path that wavelength is λ 1
The the second light-receiving port λ 22 and the second light emitting port λ 21 of the 12 and first light emitting port λ 11, the optical path that wavelength is λ 2.Wave
The optical path and wavelength of a length of λ 1 is that the optical path of λ 2 is respectively equipped with one group of optical transceiver module, and every group of optical transceiver module is collimated by transmitting terminal
Lens, transmitting terminal wave plate and the primary optical axis wave plate equipped with inclination angle, which are realized, to be collimated by the light emitting port of multimode laser to optical fiber end
The light emitting optical path of lens 6 is realized by above-mentioned primary optical axis wave plate, transmitting terminal wave plate, reflecting mirror 8 and receiving end collimation lens by light
Light-receiving optical path of the fine end collimation lens 6 to the light-receiving port of multimode laser.Transmitting terminal collimation lens and transmitting terminal wave plate
Between be equipped with for stopping the light for penetrating transmitting terminal wave plate to enter the isolator of transmitting terminal collimation lens.
Specifically, the double luminous road systems of double receipts of the single fiber include the fiber port 7 for being connected to single fiber, the light
It is equipped on the left of fine port 7 for directional light to be converged in the fiber port 7 and the light from fiber port 7 is converted into
The optical fiber end collimation lens 6 of parallel light output, axis where the directional light which is converted into is primary optical axis
L.The primary optical axis wave plate of fiber port 7, optical fiber end collimation lens 6 and optical transceiver module is all disposed on primary optical axis L, primary optical axis
The reflecting surface of wave plate and the angle of primary optical axis L are 45 degree, the reflecting mirror 8 of optical transceiver module be arranged in the upside of primary optical axis L and
Its surface of emission is parallel with primary optical axis L, this two groups of optical transceiver modules share the reflecting mirror 8, and multimode VCSEL laser 1 is then located at master
Optical axis L and 8 opposite lower of reflecting mirror, the remaining device of optical transceiver module be all located at primary optical axis L and multimode VCSEL laser 1 it
Between.
Wherein, transmitting terminal wave plate tilts light and primary optical axis wave plate so that its light-receiving port for being reflected into multimode laser
Position be staggered, the reflecting surface of transmitting terminal wave plate and the angle of primary optical axis L are between 15 degree to 60 degree.
The double luminous road systems of double receipts of the single fiber, the difference of multimode laser is respectively corresponded using multiple groups optical transceiver module
Light emitting/receiving port of wavelength, every group of optical transceiver module can all realize co-wavelength light via the light emitting and light in different channels
It receives, the four-way wavelength-division that two receptions, two transmission channels can be realized using a multimode laser with dual wavelength is multiple
With, solve the problems, such as four-way using four DFB single-mode lasers make it is at high cost.
Wavelength be λ 1 light emitting optical path λ 11 as shown in the right side of fig 2, (two pole of laser LD in the first light emitting port λ 11
Pipe) shine, directional light straight up is converted to by the first transmitting terminal collimation lens 2, the directional light sequentially pass through first every
From reaching the first primary optical axis wave plate 5 after device 3 and the first transmitting terminal wave plate 4, and by after the reflection of the first primary optical axis wave plate 5 along key light
Axis L injects optical fiber end collimation lens 6, and the fiber port 7 that single fiber is entered after the focusing of optical fiber end collimation lens 6 transmits outward.
Wavelength be λ 1 light-receiving optical path λ 12 as shown in the right side of fig 2, the light for being transferred to fiber port 7 is collimated by optical fiber end
Lens 6 are converted to that directional light is laggard to become owner of optical axis L, which successively passes through the first primary optical axis wave plate 5, the first transmitting terminal wave plate
4 and reflecting mirror 8 reflect after inject the first receiving end collimation lens 9, through the first receiving end collimation lens 9 focusing after from vertical direction
The PD (photodiode) being mapped in the first light-receiving port λ 12.
LD (laser two pole of the light emitting optical path λ 21 that wavelength is λ 2 as shown in the left side Fig. 2, in the second light emitting port λ 21
Pipe) shine, directional light straight up is converted to by the second transmitting terminal collimation lens 10, the directional light sequentially pass through second every
From reaching the second primary optical axis wave plate 13 after device 11 and the second transmitting terminal wave plate 12, and by after the reflection of the second primary optical axis wave plate 13 along
Primary optical axis L injects optical fiber end collimation lens 6 through the first primary optical axis wave plate 5, enters monochromatic light after the focusing of optical fiber end collimation lens 6
Fine fiber port 7 transmits outward.
As shown in the left side Fig. 2, the light for being transferred to fiber port 7 is collimated the light-receiving optical path λ 22 that wavelength is λ 2 by optical fiber end
Lens 6 are converted to that directional light is laggard to become owner of optical axis L, which reaches the second primary optical axis wave plate through the first primary optical axis wave plate 5
After 13, the second receiving end standard is successively injected after the reflection of the second primary optical axis wave plate 13, the second transmitting terminal wave plate 12 and reflecting mirror 8
Straight lens 14, the PD (light being mapped to from vertical direction after the focusing of the second receiving end collimation lens 14 in second light-receiving port λ 22
Electric diode).
The double luminous road systems of double receipts of the single fiber, the first light emitting port λ 11, the first light-receiving port λ 12, the second light
Emission port λ 21 and the second light-receiving port λ 22 is in the same side of primary optical axis, and appearance is neatly good-looking, is routed convenient for module；
Four channels that above-mentioned light-receiving/light emitting end mouth is formed all are vertical primary optical axis L, die clamp low manufacture cost, yield
Height, at low cost, volume production easy to accomplish.
Claims (9)
1. the double luminous road systems of double receipts of single fiber, which is characterized in that including fiber port, optical fiber end collimation lens, light transmitting-receiving
Component and multimode laser, the optical transceiver module include transmitting terminal collimation lens, transmitting terminal wave plate, primary optical axis wave plate, reflection
Mirror and receiving end collimation lens, the primary optical axis wave plate and the fiber port, optical fiber end collimation lens are arranged in same key light
On axis L；
The primary optical axis wave plate is directed at the light emitting port of the multimode laser and tilts towards the optical fiber end collimation lens, with
Make the light projected from the light emitting port successively after transmitting terminal collimation lens and transmitting terminal wave plate, through the primary optical axis wave plate
Enter optical fiber end collimation lens along the primary optical axis L after reflection；
The light being mapped on the primary optical axis wave plate from the optical fiber end collimation lens is reflected back toward the transmitting terminal wave plate, through described
Enter the light-receiving port corresponding with the light emitting port of the multimode laser after the reflection of transmitting terminal wave plate；
The optical transceiver module has multiple groups, and each group optical transceiver module respectively corresponds the light hair of the different wave length of the multimode laser
Penetrate/receiving port.
2. the double luminous road systems of double receipts of single fiber according to claim 1, which is characterized in that the transmitting terminal wave plate inclines
Tiltedly so that the position of the light and the primary optical axis wave plate of its light-receiving port for being reflected into multimode laser is staggered.
3. the double luminous road systems of double receipts of single fiber according to claim 2, which is characterized in that the multimode laser
Light emitting port and light-receiving port are located at the ipsilateral of the primary optical axis L, and the optical transceiver module further includes reflecting surface direction should
The reflecting mirror of light-receiving port, the light after transmitting terminal wave plate reflection is by entering the multi-mode laser after reflecting mirror reflection
The light-receiving port of device.
4. the double luminous road systems of double receipts of single fiber according to claim 3, which is characterized in that the reflecting mirror is located at master
The optical axis L side opposite with the multimode laser.
5. the double luminous road systems of double receipts of single fiber according to claim 4, which is characterized in that the reflection of the reflecting mirror
Face is parallel with primary optical axis L, and multiple groups optical transceiver module shares the reflecting mirror.
6. the double luminous road systems of double receipts of single fiber according to claim 1, which is characterized in that the reflection of primary optical axis wave plate
The angle of face and primary optical axis L are 45 degree.
7. the double luminous road systems of double receipts of single fiber according to claim 2, which is characterized in that the reflection of transmitting terminal wave plate
The angle of face and primary optical axis L are between 15 degree to 60 degree.
8. the double luminous road systems of double receipts of single fiber according to claim 1, which is characterized in that transmitting terminal collimation lens and
The isolator for stopping the light through transmitting terminal wave plate to enter transmitting terminal collimation lens is equipped between transmitting terminal wave plate.
9. the double luminous road systems of double receipts of single fiber according to claim 1, which is characterized in that the multimode laser is
Dual wavelength multimode VCSEL laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821215085.5U CN208547749U (en) | 2018-07-29 | 2018-07-29 | The double luminous road systems of double receipts of single fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821215085.5U CN208547749U (en) | 2018-07-29 | 2018-07-29 | The double luminous road systems of double receipts of single fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208547749U true CN208547749U (en) | 2019-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821215085.5U Withdrawn - After Issue CN208547749U (en) | 2018-07-29 | 2018-07-29 | The double luminous road systems of double receipts of single fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208547749U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761672A (en) * | 2018-07-29 | 2018-11-06 | 广东瑞谷光网通信股份有限公司 | The double luminous road systems of double receipts of single fiber |
| CN110651212A (en) * | 2019-08-13 | 2020-01-03 | 索尔思光电（成都）有限公司 | Multichannel parallel bidirectional device coupling device |
-
2018
- 2018-07-29 CN CN201821215085.5U patent/CN208547749U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761672A (en) * | 2018-07-29 | 2018-11-06 | 广东瑞谷光网通信股份有限公司 | The double luminous road systems of double receipts of single fiber |
| CN108761672B (en) * | 2018-07-29 | 2024-02-27 | 广东瑞谷光网通信股份有限公司 | Double-receiving double-light-emitting path system of single optical fiber |
| CN110651212A (en) * | 2019-08-13 | 2020-01-03 | 索尔思光电（成都）有限公司 | Multichannel parallel bidirectional device coupling device |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190226 Effective date of abandoning: 20240227 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190226 Effective date of abandoning: 20240227 |