CN203799067U - Tail fiber structure based on coating technology and provided with OTDR reflector - Google Patents
Tail fiber structure based on coating technology and provided with OTDR reflector Download PDFInfo
- Publication number
- CN203799067U CN203799067U CN201420059636.9U CN201420059636U CN203799067U CN 203799067 U CN203799067 U CN 203799067U CN 201420059636 U CN201420059636 U CN 201420059636U CN 203799067 U CN203799067 U CN 203799067U
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- China
- Prior art keywords
- fiber structure
- optical fiber
- tail optical
- otdr
- catoptron
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- 238000000253 optical time-domain reflectometry Methods 0.000 title claims abstract description 41
- 239000011248 coating agent Substances 0.000 title claims abstract description 21
- 238000000576 coating method Methods 0.000 title claims abstract description 21
- 239000000835 fiber Substances 0.000 title abstract description 10
- 238000005516 engineering process Methods 0.000 title abstract description 9
- 238000012360 testing method Methods 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 20
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 8
- 239000007888 film coating Substances 0.000 claims abstract description 8
- 238000009501 film coating Methods 0.000 claims abstract description 8
- 239000013307 optical fiber Substances 0.000 claims description 55
- 238000000034 method Methods 0.000 claims description 22
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 abstract description 30
- 238000012544 monitoring process Methods 0.000 description 8
- 238000002310 reflectometry Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000011514 reflex Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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- Optical Communication System (AREA)
Abstract
The utility model relates to a tail fiber structure based on the coating technology and provided with an OTDR reflector. The tail fiber structure is arranged inside an ONU/ONT and is disposed between a bidirectional optical sub-assembly BOSA and an external joint. The tail fiber structure is sleeved with a tail sleeve. The reflector is arranged on one of the end faces of the two sides of the tail fiber. The reflector is a film coating on one end face of the tail fiber. According to the tail fiber structure, the reflector is configured on an optical link terminal by the use of the coating technology to transmit uplink and downlink communication wavelength signals and reflect 1-100% OTDR test wavelength signals. Therefore, the tail fiber structure can be matched with an OTDR device in use to enable the physical health state of an optical link to be accurately monitored on the premise of not affecting the communication of a communication system.
Description
Technical field
The utility model relates to optical communication, the tail optical fiber structure of using while specially referring to a kind of optical time domain reflectometer OTDR on-line monitoring.
Background technology
Flourish along with optical communication network, especially China's Mainland is under the promotion of broadband strategy in China, the problem of management of magnanimity optical cable and optical fibres is urgently to be resolved hurrily, wherein the monitoring technique of the physical health situation of magnanimity optical link also receives much concern, and OTDR technology is the current relatively mainstream technology of approval in this area.
In the optical element connecting at optical fiber, relatively more conventional is tail optical fiber and wire jumper.Wherein one end of tail optical fiber is the connector that termination is good, and one end is optical fiber (cutting off one as wire jumper); Effect is welding, and after fiber cable laying is good, one end need to be connected on the joints of optical fibre, so one end that there is no head of the end of optical cable and tail optical fiber is welding together, optical cable has just had connector like this, can be connected with equipment.
The two ends of wire jumper are all the connectors that termination is good, as two tail optical fibers, connect together, and effect is the port of direct connection device.
In above-mentioned OTDR technology, for EPON, due to optical splitter particularly the introducing of vast scale optical splitter bring larger Insertion Loss, and the randomness that has of each link terminal, capital causes back-scattering light uncontrollable, thereby affects the reliability and stability of test result.And also can produce and influence each other between the monitoring wavelength of OTDR and uplink and downlink communication wavelength, both may cause test result inaccurate, also may disturb and even interrupt normally carrying out of up, descending or uplink and downlink communication, cause larger economic loss.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of novel tail optical fiber structure based on coating technique band OTDR catoptron is provided.Tail optical fiber structure of the present utility model is wanted not affect under the prerequisite of communication system communication, coordinates OTDR equipment that optical link physical health situation is monitored accurately.
In order to reach foregoing invention object, the technical scheme the utility model proposes is as follows:
A kind of tail optical fiber structure based on coating technique band OTDR catoptron, this tail optical fiber structure is arranged at the inside of ONU/ONT, and tail optical fiber structure in light bidirectional transmit-receive assembly BOSA and to coupling between, in the outside of tail optical fiber structure, be provided with tail cover, it is characterized in that, described catoptron is arranged on an end face in the end face of tail optical fiber both sides, in the end face of both sides, one is the tail optical fiber end face near light bidirectional transmit-receive assembly BOSA, another is the ferrule endface to coupling, and described catoptron is the plated film coating in tail optical fiber end face or ferrule endface.
In tail optical fiber structure at the utility model based on coating technique band OTDR catoptron, described catoptron transmission uplink and downlink communication wavelengths is greater than 1260nm and is less than or equal to 1610nm, and reflection 1%-100% OTDR test wavelength is greater than 1610nm and is less than the signal of 1670nm.
In tail optical fiber structure at the utility model based on coating technique band OTDR catoptron, the described connected mode to coupling support includes SC/APC, SC/UPC, FC/UPC, LC/APC and LC/UPC.
In tail optical fiber structure at the utility model based on coating technique band OTDR catoptron, described plated film coating is multilayer dielectric film.
Based on technique scheme, tail optical fiber structure applications of the present utility model has obtained following technique effect in optical link physical health Real-Time Monitoring:
1. the technology of break-make, loss test and the location of the optical link that tail optical fiber structure of the present utility model is carried out in conjunction with OTDR equipment in EPON, by reasonable control test wavelength signal reflex rate, can realize the Real-Time Monitoring of optical link physical health, and accurate fault test and location are provided.It is by using coating technique configuration catoptron in optical link terminal, transmission uplink and downlink communication wavelength signals, control reflection 1%-100% test wavelength signal, making is not affecting under the prerequisite of communication system communication, coordinates OTDR equipment that optical link physical health situation is monitored accurately.
2. tail optical fiber structure of the present utility model can be eliminated the random uncertainty that while not adding catoptron, ONU/ONT end reflection signal has, control section or all reflection measurement wavelength signals, to help OTDR equipment to obtain best backscatter signals, guarantee the accuracy of test result.This tail optical fiber structure can also solve ONU/ONT end reflection signal while not adding catoptron and have the problem that optical link loss after the optical splitter that randomness causes cannot Measurement accuracy, realizes loss measurement end to end.
3. tail optical fiber structure of the present utility model is carried out plated film by the tail optical fiber end face in ONU/ONT inside and is added catoptron, when being dispatched from the factory, all New-deployed Network ONU/ONT possessed catoptron, without carrying out again the network rebuilding of terminal aspect when adding OTDR monitoring equipment later, for operator saves difficulty and the cost of network reconstruction greatly, and operator is strong for the controllability of follow-up OTDR test and network.For establishing network, be not equipped with the ONU/ONT terminal of catoptron, at former incoming fiber optic and ONU/ONT terminal room, add one section of wire jumper with catoptron, simply transform network and can meet OTDR test request.
Accompanying drawing explanation
Fig. 1 is the tail optical fiber a kind of structural representation of the utility model based on coating technique band OTDR catoptron.
Fig. 2 is the another kind of structural representation of the tail optical fiber of the utility model based on coating technique band OTDR catoptron.
Embodiment
Below we do further and elaborate fibre-optic terminus of the present utility model connecting-piece structure with specific embodiment by reference to the accompanying drawings; in the hope of more cheer and bright, understand web member composition characteristic of the present utility model and use procedure, but can not limit with this protection domain of this utility model.
Embodiment 1
As shown in Figure 1, the present embodiment is also a kind of tail optical fiber structure, and this tail optical fiber structure is arranged at the inside of ONU/ONT assembly 6, and tail optical fiber structure is in light bidirectional transmit-receive assembly 1(BOSA) and to the optical cable 4 between coupling 5 on, in the outside of tail optical fiber structure, be provided with tail cover 3.The catoptron of above-mentioned tail optical fiber structure or be arranged near light bidirectional transmit-receive assembly 1(BOSA) tail optical fiber end face on, described catoptron is the plated film coating 2 of tail optical fiber end face.
In tail optical fiber structure at the utility model based on coating technique band OTDR catoptron, as catoptron, its can transmission uplink and downlink communication wavelengths scope for being greater than 1260nm and being less than or equal to 1610nm, partly or entirely reflect OTDR test wavelength.OTDR test wavelength/wavelength coverage is to be greater than 1610nm and to be less than 1670nm, this catoptron is 1%-100% to the reflectivity of above-mentioned OTDR test wavelength, if reflectivity is 100%, is whole reflections, if be less than 100% but to be greater than 1% be part reflection.
Embodiment 2
As shown in Figure 2, the present embodiment is also a kind of tail optical fiber structure, and this tail optical fiber structure is arranged at the inside of ONU/ONT assembly 6, and tail optical fiber structure is in light bidirectional transmit-receive assembly 1(BOSA) and to the optical cable 4 between coupling 5 on, in the outside of tail optical fiber structure, be provided with tail cover 3.In above-mentioned tail optical fiber structure, catoptron is arranged in the ferrule endface of coupling 5, and this catoptron is the plated film coating 2 to the ferrule endface of coupling 5.
In tail optical fiber structure at the utility model based on coating technique band OTDR catoptron, as catoptron, its can transmission uplink and downlink communication wavelengths scope for being greater than 1260nm and being less than or equal to 1610nm, partly or entirely reflect OTDR test wavelength.OTDR test wavelength/wavelength coverage is to be greater than 1610nm and to be less than 1670nm, this catoptron is 1%-100% to the reflectivity of above-mentioned OTDR test wavelength, if reflectivity is 100%, is whole reflections, if be less than 100% but to be greater than 1% be part reflection.
In tail optical fiber structure at the utility model based on coating technique band OTDR catoptron, the described connected mode to coupling support includes SC/APC, SC/UPC, FC/UPC, LC/APC and LC/UPC.
In tail optical fiber structure at the utility model based on coating technique band OTDR catoptron, described plated film coating is multilayer dielectric film.
Tail optical fiber structure applications of the present utility model can be used in optical communication network in optical link physical health Real-Time Monitoring, technology such as break-make, loss test and the location of the optical link carrying out in conjunction with OTDR equipment in EPON, by reasonable control test wavelength signal reflex rate, can realize the Real-Time Monitoring of optical link physical health, and accurate fault test and location are provided.This scheme is by being used coating technique configuration catoptron in optical link terminal, transmission uplink and downlink communication wavelength signals, control reflection 1%-100% test wavelength signal, making is not affecting under the prerequisite of communication system communication, coordinates OTDR equipment that optical link physical health situation is monitored accurately.
Claims (4)
1. the tail optical fiber structure based on coating technique band OTDR catoptron, this tail optical fiber structure is arranged at the inside of ONU/ONT, and tail optical fiber structure in light bidirectional transmit-receive assembly and to coupling between, in the outside of tail optical fiber structure, be provided with tail cover, it is characterized in that, described catoptron is arranged on an end face in the end face of tail optical fiber both sides, and in the end face of both sides, one is the tail optical fiber end face near light bidirectional transmit-receive assembly, another is the ferrule endface to coupling, and described catoptron is plated film coating.
2. a kind of tail optical fiber structure based on coating technique band OTDR catoptron according to claim 1, it is characterized in that, described catoptron transmission uplink and downlink communication wavelengths is greater than 1260nm and is less than or equal to 1610nm, and reflection 1%-100% OTDR test wavelength is greater than 1610nm and is less than the signal of 1670nm.
3. a kind of tail optical fiber structure based on coating technique band OTDR catoptron according to claim 1, is characterized in that, the described connected mode to coupling support includes SC/APC, SC/UPC, FC/UPC, LC/APC and LC/UPC.
4. a kind of tail optical fiber structure based on coating technique band OTDR catoptron according to claim 1, is characterized in that, described plated film coating is multilayer dielectric film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420059636.9U CN203799067U (en) | 2014-02-08 | 2014-02-08 | Tail fiber structure based on coating technology and provided with OTDR reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420059636.9U CN203799067U (en) | 2014-02-08 | 2014-02-08 | Tail fiber structure based on coating technology and provided with OTDR reflector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203799067U true CN203799067U (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420059636.9U Expired - Lifetime CN203799067U (en) | 2014-02-08 | 2014-02-08 | Tail fiber structure based on coating technology and provided with OTDR reflector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203799067U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105991185A (en) * | 2015-02-12 | 2016-10-05 | 中兴通讯股份有限公司 | Laser chip |
| CN109004973A (en) * | 2018-07-04 | 2018-12-14 | 广州广电计量检测股份有限公司 | A kind of OTDR capability evaluating device and method |
-
2014
- 2014-02-08 CN CN201420059636.9U patent/CN203799067U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105991185A (en) * | 2015-02-12 | 2016-10-05 | 中兴通讯股份有限公司 | Laser chip |
| CN109004973A (en) * | 2018-07-04 | 2018-12-14 | 广州广电计量检测股份有限公司 | A kind of OTDR capability evaluating device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314299, Pinghu Jiaxing Economic Development Zone, Zhejiang Province, 988 emerging two road, the first floor of the first floor of the north side of the building Patentee after: PINGHU BOHUI COMMUNICATION TECHNOLOGY Co.,Ltd. Patentee after: SHANGHAI BANDWEAVER TECHNOLOGY Co.,Ltd. Address before: 314299, Pinghu Jiaxing Economic Development Zone, Zhejiang Province, 988 emerging two road, the first floor of the first floor of the north side of the building Patentee before: PINGHU BOHUI COMMUNICATION TECHNOLOGY Co.,Ltd. Patentee before: Shanghai Bandweaver Technologies Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 314299 North side of the first floor of No. 988 Xinxing No. 2 Road, Pinghu Economic Development Zone, Jiaxing City, Zhejiang Province Co-patentee after: Shanghai Bohui Technology Co.,Ltd. Patentee after: PINGHU BOHUI COMMUNICATION TECHNOLOGY Co.,Ltd. Address before: 314299 North side of the first floor of No. 988 Xinxing No. 2 Road, Pinghu Economic Development Zone, Jiaxing City, Zhejiang Province Co-patentee before: SHANGHAI BANDWEAVER TECHNOLOGY Co.,Ltd. Patentee before: PINGHU BOHUI COMMUNICATION TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |
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| CX01 | Expiry of patent term |