CN205317984U - Intensive wavelength single fiber three -dimensional subassembly - Google Patents
Intensive wavelength single fiber three -dimensional subassembly Download PDFInfo
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- CN205317984U CN205317984U CN201520974315.6U CN201520974315U CN205317984U CN 205317984 U CN205317984 U CN 205317984U CN 201520974315 U CN201520974315 U CN 201520974315U CN 205317984 U CN205317984 U CN 205317984U
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Abstract
The utility model relates to an intensive wavelength single fiber three -dimensional subassembly. Including transmitting terminal, first receiving terminal, second receiving terminal, input/output end, first light filter, second light filter, third light filter, first light signal by the input of input/output end is received by the photoelectric detector of first receiving terminal behind first light filter and second light filter, second light signal by the input of input/output end is received by the photoelectric detector of second receiving terminal behind first light filter, second light filter and third light filter, third light signal by the laser diode of transmitting terminal sends is received by the optic fibre of input/output end behind first light filter, wherein, first light signal, second light signal and third light signal have wavelength different each other, and the wavelength of first light signal and second light signal is adjacent wavelength. The utility model discloses can obtain higher coupling efficiency through short optical distance, solve adjacent wavelength's interference and unable effective detached difficulty.
Description
Technical field
The utility model relates to a kind of optical transceiver module assembly in technical field of optical fiber communication, especially relates to a kind of Dense Wavelength single fiber three-way assembly.
Background technology
Along with the application of fiber optic network is more and more universal, especially all over the world intelligent acess FTTH (FiberToTheHome) project is progressively implemented, and point-to-point transfer, the particularly propelling of unification of three nets, and fiber to the home network (XGPON) of future generation, on market also increasing for the demand of single fiber three-way assembly, especially certain two wavelength interval very narrow single fiber three-way assembly.
Single fiber three-way inside such as XGPON standard, it is necessary to the wavelength of process is 1270nm, 1550nm and 1577nm, compares the 1310nm in original GPON standard, 1490nm and 1550nm, and wavelength interval, from the narrowest original 60nm, becomes the narrowest 27nm. Actual transition band, from original 40nm, becomes 15nm, and corresponding technical difficulty is multiplied.
The principle of the single fiber three-way optical transceiver module assembly of most simple structure, as shown in Figure 1, first optical signal and the 2nd optical signal enter optical module by optical fiber by public end 1, in optical module, first spectral filter 51 is 45 degree of angles with light path, light beam occurs 90 degree of reflections to receive by the first photodetector 31 through the first spectral filter 51, first optical signal; Again through the 2nd spectral filter 52 after 2nd optical signals first spectral filter 51 transmission, then the 2nd optical signal reflects through the 2nd spectral filter 52 and receives by the 2nd photodetector 32. First receiving end 31 and the 2nd receiving end 32 are a kind of photo-detector, for opto-electronic conversion, make optical signal be converted into electrical signal. Launching end 2 and adopt laser diode, the 3rd optical signal that transmitting end 2 sends enters public end 1 through the 2nd spectral filter 52 and the first spectral filter 51 transmission.
In such an embodiment, because the first filter plate 51 and the 2nd spectral filter 52 must be 45 ° of incidences, realize the transmittance and reflectance of different wave length, so to be met application requirement, so launching three wavelength intervals with receiving end just must be enough wide, otherwise transmission peak wavelength signal or reflection wavelength signals will be caused effectively to separate.When the wavelength of two optical signals that public end inputs is separated by very near, these two adjacent wavelength just cannot effectively be separated by the first spectral filter 51 and the 2nd spectral filter 52.
Certainly, in this kind of application requires, the optical signal of transmission is changed into collimated beam, it is possible to effectively separated by three optical signals, but such cost is very high.
The Dense Wavelength single fiber three-way assembly that the utility model proposes can obtain higher coupling efficiency by shorter light path, the interference solving adjacent wavelength and the difficulty that cannot effectively separate so that the single fiber three-way transceiver module assembly of Dense Wavelength is achieved and effectively uses.
Summary of the invention
The purpose of this utility model is to provide a kind of interference solving adjacent wavelength and the Dense Wavelength single fiber three-way assembly that cannot effectively separate.
For achieving the above object, the technical solution of the utility model is: a kind of Dense Wavelength single fiber three-way assembly, comprises and launch end, the first receiving end, the 2nd receiving end, input/output terminal, the first spectral filter, the 2nd spectral filter, the 3rd spectral filter; The first optical signal inputted by input/output terminal after the first spectral filter and the 2nd spectral filter by the photoelectric detector of the first receiving end; The 2nd optical signal inputted by input/output terminal after the first spectral filter, the 2nd spectral filter and the 3rd spectral filter by the photoelectric detector of the 2nd receiving end; The 3rd optical signal sent by the laser diode launching end is received by the optical fiber of input/output terminal after the first spectral filter; Wherein, described first optical signal, the 2nd optical signal and the 3rd optical signal have wavelength different from each other, and the wavelength of the first optical signal and the 2nd optical signal is adjacent wavelength.
In the novel embodiment of practicality, the wavelength interval of the wavelength of the described wavelength of the 3rd optical signal and the wavelength of the first optical signal and the 2nd optical signal is wider.
In the novel embodiment of practicality, described first spectral filter is wide-angle spectral filter, and described 2nd spectral filter is Small angle spectral filter.
In the novel embodiment of practicality, the laser that the laser diode of described transmitting end sends is the laser of single state partially.
In the novel embodiment of practicality, described transmitting end, the first receiving end, the 2nd receiving end interchanging positions, namely launch end and can be receiving end, and first, second receiving end can be transmitting end.
Compared to prior art, the utility model has following useful effect:
The Dense Wavelength single fiber three-way assembly that the utility model proposes can obtain higher coupling efficiency by shorter light path, the interference solving adjacent wavelength and the difficulty that cannot effectively separate so that the single fiber three-way transceiver module assembly of Dense Wavelength is achieved and effectively uses; And the filter disc that the utility model is realized by two easy low costs, in minimum space, it is achieved the decomposition of three wavelength light signals and synthesis.
Accompanying drawing explanation
Fig. 1 is a kind of single fiber three-way unit construction schematic diagram of the simplest structure.
A kind of Dense Wavelength single fiber three-way unit construction schematic diagram in Fig. 2 the utility model.
Another kind of Dense Wavelength single fiber three-way unit construction schematic diagram in Fig. 3 the utility model.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is specifically described.
A kind of Dense Wavelength single fiber three-way assembly of the present utility model, comprises and launches end, the first receiving end, the 2nd receiving end, input/output terminal, the first spectral filter, the 2nd spectral filter, the 3rd spectral filter; The first optical signal inputted by input/output terminal after the first spectral filter and the 2nd spectral filter by the photoelectric detector of the first receiving end; The 2nd optical signal inputted by input/output terminal after the first spectral filter, the 2nd spectral filter and the 3rd spectral filter by the photoelectric detector of the 2nd receiving end; The 3rd optical signal sent by the laser diode launching end is received by the optical fiber of input/output terminal after the first spectral filter; Wherein, described first optical signal, the 2nd optical signal and the 3rd optical signal have wavelength different from each other, and the wavelength of the first optical signal and the 2nd optical signal is adjacent wavelength.
Further, the wavelength interval of the wavelength of the described wavelength of the 3rd optical signal and the wavelength of the first optical signal and the 2nd optical signal is wider, and namely the wavelength interval of the wavelength of the 3rd optical signal and the wavelength of the first optical signal and the 2nd optical signal is more than or equal to 40nm.
Further, described first spectral filter is wide-angle spectral filter, and described 2nd spectral filter is Small angle spectral filter.
Further, the laser that the laser diode of described transmitting end sends is the laser of single state partially.
Further, described transmitting end, the first receiving end, the 2nd receiving end interchanging positions, namely launch end and can be receiving end, and first, second receiving end can be transmitting end. (except one is launched the situation of end, two receiving ends, three also can be adopted to launch end, three receiving ends or adopt two to launch end and a receiving end, and the position of transmitting end, receiving end all can exchange mutually)
Technical solutions of the utility model are told about below in conjunction with specific examples.
Embodiment one:
Please refer to Fig. 2, the utility model proposes a kind of Dense Wavelength single fiber three-way assembly, comprise and launch end, the first receiving end, the 2nd receiving end, input/output terminal, the first spectral filter, the 2nd spectral filter, the 3rd spectral filter. The first optical signal inputted by input/output terminal 1 arrives the 2nd spectral filter 42 after the first spectral filter 41 reflects, and receives by the first receiving end photodetector 31 after the 2nd spectral filter 42 transmission; The 2nd optical signal inputted by input/output terminal 1 arrives the 2nd spectral filter 42 after the first spectral filter 41 reflects, and arrives the 3rd spectral filter 43, receive by the 2nd receiving end photodetector 32 by after the 3rd spectral filter 43 transmission after reflecting by the 2nd spectral filter 42. The 3rd optical signal sent by transmitting end 2 laser diode is received by input/output terminal 1 optical fiber after the first spectral filter 41 transmission. First optical signal, the 2nd optical signal and the 3rd optical signal have wavelength different from each other, and the wavelength of the first optical signal and the 2nd optical signal is adjacent wavelength. First spectral filter 41 is wide-angle spectral filter, and λ 1, λ 2, λ 3 are divided into λ 1, λ 2 and λ 3 liang of groups; 2nd spectral filter 42 is Small angle spectral filter, adjacent wavelength X 1 and λ 2 is separated.
Embodiment two:
Please refer to Fig. 3, the present invention proposes another kind of Dense Wavelength single fiber three-way assembly. Comprise and launch end, the first receiving end, the 2nd receiving end, input/output terminal, the 4th spectral filter, the 2nd spectral filter, the 3rd spectral filter. The first optical signal inputted by input/output terminal 1 arrives the 2nd spectral filter 42 after the 4th spectral filter 44 transmission, receives by the first receiving end photodetector 31 after the 2nd spectral filter 42 transmission; The 2nd optical signal inputted by input/output terminal 1 arrives the 2nd spectral filter 42 after the 4th spectral filter 44 transmission, arrives the 3rd spectral filter 43, receive by the 2nd receiving end photodetector 32 by after the 3rd spectral filter 43 transmission after reflecting by the 2nd spectral filter 42. The 3rd optical signal sent by transmitting end 2 laser diode is received by input/output terminal 1 optical fiber after the 4th spectral filter 44 reflects. First optical signal, the 2nd optical signal and the 3rd optical signal have wavelength different from each other, and the wavelength of the first optical signal and the 2nd optical signal is adjacent wavelength. 4th spectral filter 44 is wide-angle spectral filter, and λ 1, λ 2, λ 3 are divided into λ 1, λ 2 and λ 3 liang of groups; 2nd spectral filter 42 is Small angle spectral filter, adjacent wavelength X 1 and λ 2 is separated.
Above-listed better embodiment; the object, technical solutions and advantages of the present invention have been further described; it is it should be understood that; the foregoing is only the better embodiment of the present invention; not in order to limit the present invention; within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Being more than better embodiment of the present utility model, all changes done according to technical solutions of the utility model, when the function produced does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.
Claims (5)
1. a Dense Wavelength single fiber three-way assembly, it is characterised in that: comprise and launch end, the first receiving end, the 2nd receiving end, input/output terminal, the first spectral filter, the 2nd spectral filter, the 3rd spectral filter; The first optical signal inputted by input/output terminal after the first spectral filter and the 2nd spectral filter by the photoelectric detector of the first receiving end; The 2nd optical signal inputted by input/output terminal after the first spectral filter, the 2nd spectral filter and the 3rd spectral filter by the photoelectric detector of the 2nd receiving end; The 3rd optical signal sent by the laser diode launching end is received by the optical fiber of input/output terminal after the first spectral filter; Wherein, described first optical signal, the 2nd optical signal and the 3rd optical signal have wavelength different from each other, and the wavelength of the first optical signal and the 2nd optical signal is adjacent wavelength.
2. a kind of Dense Wavelength single fiber three-way assembly according to claim 1, it is characterized in that: the described wavelength of the 3rd optical signal and the wavelength interval of the first optical signal are more than or equal to 40nm, the wavelength interval of the wavelength of described 3rd optical signal and the wavelength of the 2nd optical signal is more than or equal to 40nm.
3. a kind of Dense Wavelength single fiber three-way assembly according to claim 1, it is characterised in that: described first spectral filter is wide-angle spectral filter, and described 2nd spectral filter is Small angle spectral filter.
4. a kind of Dense Wavelength single fiber three-way assembly according to claim 1, it is characterised in that: the laser that the laser diode of described transmitting end sends is the laser of single state partially.
5. a kind of Dense Wavelength single fiber three-way assembly according to claim 1, it is characterised in that: described transmitting end, the first receiving end, the 2nd receiving end interchanging positions, namely to launch end and can be receiving end, first, second receiving end can be transmitting end.
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| CN201520974315.6U CN205317984U (en) | 2015-12-01 | 2015-12-01 | Intensive wavelength single fiber three -dimensional subassembly |
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| CN201520974315.6U CN205317984U (en) | 2015-12-01 | 2015-12-01 | Intensive wavelength single fiber three -dimensional subassembly |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107479145A (en) * | 2017-07-21 | 2017-12-15 | 成都聚芯光科通信设备有限责任公司 | Beneficial to the optical transceiver module component for improving coupling efficiency |
| CN107526133A (en) * | 2017-08-24 | 2017-12-29 | 合肥文武信息技术有限公司 | A kind of fibre concentrator structure |
| CN112698450A (en) * | 2019-10-22 | 2021-04-23 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| WO2021135968A1 (en) * | 2020-01-02 | 2021-07-08 | 福建天蕊光电有限公司 | High-speed transceiving module for 5g middlehaul |
| CN114184356A (en) * | 2021-11-25 | 2022-03-15 | 苏州六幺四信息科技有限责任公司 | Photoelectric detector nonlinear analysis method and device |
-
2015
- 2015-12-01 CN CN201520974315.6U patent/CN205317984U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107479145A (en) * | 2017-07-21 | 2017-12-15 | 成都聚芯光科通信设备有限责任公司 | Beneficial to the optical transceiver module component for improving coupling efficiency |
| CN107526133A (en) * | 2017-08-24 | 2017-12-29 | 合肥文武信息技术有限公司 | A kind of fibre concentrator structure |
| CN112698450A (en) * | 2019-10-22 | 2021-04-23 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN112698450B (en) * | 2019-10-22 | 2023-03-24 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| WO2021135968A1 (en) * | 2020-01-02 | 2021-07-08 | 福建天蕊光电有限公司 | High-speed transceiving module for 5g middlehaul |
| CN114184356A (en) * | 2021-11-25 | 2022-03-15 | 苏州六幺四信息科技有限责任公司 | Photoelectric detector nonlinear analysis method and device |
| CN114184356B (en) * | 2021-11-25 | 2024-01-09 | 苏州六幺四信息科技有限责任公司 | Nonlinear analysis method and nonlinear analysis device for photoelectric detector |
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Address after: 350015 five floors and three floors of building a and building B, building 1, Chashan Road, Mawei science and Technology Park, Fuzhou City, Fujian Province Patentee after: Tengjing Technology Co., Ltd Address before: 350015, tea mountain road, Mawei hi tech park, Fujian, Fuzhou Patentee before: FUZHOU TENGJING OPTOELECTRONICS TECHNOLOGY CO., LTD. |