CN103852824B - A kind of fibre reflector for PON monitoring - Google Patents
A kind of fibre reflector for PON monitoring Download PDFInfo
- Publication number
- CN103852824B CN103852824B CN201410070398.6A CN201410070398A CN103852824B CN 103852824 B CN103852824 B CN 103852824B CN 201410070398 A CN201410070398 A CN 201410070398A CN 103852824 B CN103852824 B CN 103852824B
- Authority
- CN
- China
- Prior art keywords
- endoporus
- rigidity
- fibre reflector
- fibre
- mode fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Optical Communication System (AREA)
Abstract
The invention discloses a kind of fibre reflector for PON monitoring, it is characterized in that, comprise for the rigidity endoporus of Fiber connection centering, the single-mode fiber jumper being separately positioned on rigidity endoporus two ends, the outer enclosure that is arranged on the optical thin film between single-mode fiber jumper and is arranged on outside rigidity endoporus; The contact pin of the two ends adapter connector of single-mode fiber jumper injects rigidity endoporus from two ends respectively, affixed between optical thin film and contact pin.Fibre reflector insertion loss of the present invention is less than 1dB, return loss between 20dB ~ 30dB, has that structure is simple, cost is low, a feature such as easy to manufacture, good stability, may be used for the fibre circuit connection status of monitoring ONT Optical Network Terminal in PON system.
Description
Technical field
The present invention relates to fiber optic communication field, specifically a kind of fibre reflector for PON monitoring.
Background technology
Along with increasing rapidly and a large amount of uses of PON of FTTH user, the phenomenon of the failure of fibre circuit is also increasing.PON fault statistics Morbidity investigation finds, user side and ODN side fault account for more than 90% of all PON faults.The circuit that network maintenance staff needs fast, accurate failure judgement occurs and position, could fix a breakdown in time, recover proper communication.Therefore, need to carry out Real-Time Monitoring to the circuit running status of PON.
Using OTDR to monitor PON fiber line state is the most simple and practical method.But because most PON all employ 64 the branches even optical branching device of 128 branches, conventional OTDR, due to dynamically not, is difficult to monitor the state that have passed through the later fibre circuit of splitter decay 20dB.
Summary of the invention
For above-mentioned present situation, the invention provides a kind of fibre reflector for PON monitoring, this fibre reflector structure is simple, and cost is low, good stability.
The technical scheme realizing the object of the invention is:
For a fibre reflector for PON monitoring, comprise for the rigidity endoporus of Fiber connection centering, the single-mode fiber jumper being separately positioned on rigidity endoporus two ends, the outer enclosure that is arranged on the optical thin film between single-mode fiber jumper and is arranged on outside rigidity endoporus; The contact pin of the two ends adapter connector of single-mode fiber jumper injects rigidity endoporus from two ends respectively, affixed between optical thin film and contact pin.
Filled affixed between described optical thin film and the end face of contact pin by optical glue, mainly in order to avoid the Contact of film and fiber core end face not exclusively produces bubble, reduce insertion loss, make the insertion loss of fibre reflector remain on below 1dB, improve the stability of fibre reflector.
The described rigidity endoporus for Fiber connection centering is the rigidity endoporus meeting People's Republic of China (PRC) communication industry standard YD/T1272.4-2007.
The two ends adapter connector of described single-mode fiber jumper, its one end is PC type or UPC type, and the other end is the adapter connector of disposable type.
The size of the contact pin of described rigidity endoporus and fiber optic connector closure matches.
The shape of described optical thin film is circular, and its thickness is 10 μm ~ 100 μm, is transmitance >=90% of the light of 1260nm ~ 1700nm to wavelength.
Fibre reflector provided by the invention achieves insertion loss and is less than 1dB, and return loss is between 20dB ~ 30dB.
The principle of work of fibre reflector of the present invention is: according to Fresnel law, and two kinds of different medium contact interfaces Fresnel reflection will occur, and the intensity of reflection is determined by the incident angle of light and the refractive index of two media.
Fibre reflector of the present invention by clamping a slice optical thin film between two fiber end faces, and because the refractive index of film is different with the refractive index of fiber core, light, at the surface of contact place of fiber core and film, stronger Fresnel reflection occurs.According to Film Optics principle, once determine the thickness of the refractive index of fiber core, the refractive index of optical thin film and film, the return loss of fibre reflector just can be calculated.In like manner, if be aware of the return loss of fibre reflector, and the refractive index of fiber core, just instead can release refractive index and the thickness of required film.
Fibre reflector of the present invention, has the features such as cost is low, structure simple, good stability, coordinates conventional OTDR, can monitor the fibre circuit situation of PON, the cost greatly reducing PON monitoring and safeguard.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of fibre reflector for PON monitoring of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described further.
For a fibre reflector for PON monitoring, comprise rigidity endoporus 1, first single-mode fiber jumper 2, second single-mode fiber jumper 3 for Fiber connection centering, a slice optical thin film 4 and an outer enclosure 5; The contact pin that first single-mode fiber jumper 2 adapter connector is one end of PC type or UPC type, the second single-mode fiber jumper 3 adapter connector is one end of PC type or UPC type inserts from the two ends of rigidity endoporus 1 respectively, and the fiber optic connector closure contact pin inserting rigidity endoporus should mate dimensionally with rigidity endoporus.
Press from both sides a slice circular optical film 4 between two adapter connector contact pins, between optical thin film 4 and two adapter connector contact pins, fill Post RDBMS by optical glue, outside rigidity endoporus 1, use encapsulation glue and outer enclosure 5 to carry out sealing and protecting.
Rigidity endoporus 1 for Fiber connection centering meets People's Republic of China (PRC) communication industry standard YD/T1272.4-2007.
The two ends adapter connector of the first single-mode fiber jumper 2, its one end is PC type or UPC type, and the other end is the adapter connector of disposable type.
The two ends adapter connector of the second single-mode fiber jumper 3, its one end is PC type or UPC type, and the other end is the adapter connector of disposable type.
Described rigidity endoporus 1 uses the porcelain bushing that nominal inside diameter is 2.500mm in the present embodiment.
The ceramic contact pin that contact pin uses a kind of UPC type in the present embodiment, nominal diameter is 2.500mm of two described single-mode fiber jumper adapter connectors.
Described optical thin film 4 uses that a slice diameter is 2.40mm, thickness is 50 μm of thin rounded flakes to transmissivity >=95% of the light of 1260nm ~ 1700nm in the present embodiment.
Described outer enclosure 5 uses the steel circular sleeve that a kind of internal diameter is 3.50mm, external diameter is 5.00mm, length is 40.0mm in the present embodiment.
Claims (6)
1. the fibre reflector for PON monitoring, it is characterized in that, comprise for the rigidity endoporus of Fiber connection centering, the single-mode fiber jumper being separately positioned on rigidity endoporus two ends, the outer enclosure that is arranged on the optical thin film between single-mode fiber jumper and is arranged on outside rigidity endoporus; The contact pin of the two ends adapter connector of single-mode fiber jumper injects rigidity endoporus from two ends respectively, affixed between optical thin film and contact pin.
2. fibre reflector according to claim 1, is characterized in that: filled affixed between described optical thin film and the end face of contact pin by optical glue.
3. fibre reflector according to claim 1, is characterized in that: the two ends adapter connector of described single-mode fiber jumper, and its one end is PC type or UPC type, and the other end is the adapter connector of disposable type.
4. fibre reflector according to claim 1, is characterized in that: the size of the contact pin of described rigidity endoporus and fiber optic connector closure matches.
5. fibre reflector according to claim 1, is characterized in that: the shape of described optical thin film is for circular, and its thickness is 10 μm ~ 100 μm, is transmitance >=90% of the light of 1260nm ~ 1700nm to wavelength.
6. fibre reflector according to claim 1, is characterized in that: the insertion loss of described fibre reflector is less than 1dB, and return loss is 20dB ~ 30dB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070398.6A CN103852824B (en) | 2014-02-28 | 2014-02-28 | A kind of fibre reflector for PON monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070398.6A CN103852824B (en) | 2014-02-28 | 2014-02-28 | A kind of fibre reflector for PON monitoring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103852824A CN103852824A (en) | 2014-06-11 |
| CN103852824B true CN103852824B (en) | 2016-04-13 |
Family
ID=50860701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410070398.6A Active CN103852824B (en) | 2014-02-28 | 2014-02-28 | A kind of fibre reflector for PON monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103852824B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1578038A1 (en) * | 2004-03-19 | 2005-09-21 | Multitel | Device and method for real-time optical network monitoring |
| CN201716431U (en) * | 2010-06-18 | 2011-01-19 | 浙江同星光电科技有限公司 | Spherical lens optical-fiber reflective optical system based on locating of locating slot |
| CN103227677A (en) * | 2013-04-28 | 2013-07-31 | 桂林聚联科技有限公司 | Optical fiber reflector and method of utilizing optical fiber reflector to achieve PON monitoring |
| CN103869417A (en) * | 2014-02-28 | 2014-06-18 | 北京航天时代光电科技有限公司 | High-reliability single mode fiber reflector and preparing method thereof |
| CN203811840U (en) * | 2014-02-28 | 2014-09-03 | 桂林聚联科技有限公司 | Optical-fiber reflector for monitoring PON network |
-
2014
- 2014-02-28 CN CN201410070398.6A patent/CN103852824B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1578038A1 (en) * | 2004-03-19 | 2005-09-21 | Multitel | Device and method for real-time optical network monitoring |
| CN201716431U (en) * | 2010-06-18 | 2011-01-19 | 浙江同星光电科技有限公司 | Spherical lens optical-fiber reflective optical system based on locating of locating slot |
| CN103227677A (en) * | 2013-04-28 | 2013-07-31 | 桂林聚联科技有限公司 | Optical fiber reflector and method of utilizing optical fiber reflector to achieve PON monitoring |
| CN103869417A (en) * | 2014-02-28 | 2014-06-18 | 北京航天时代光电科技有限公司 | High-reliability single mode fiber reflector and preparing method thereof |
| CN203811840U (en) * | 2014-02-28 | 2014-09-03 | 桂林聚联科技有限公司 | Optical-fiber reflector for monitoring PON network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103852824A (en) | 2014-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2013086127A3 (en) | Gradient index (grin) lens holders employing groove alignment feature(s) and total internal reflection (tir) surface, and related components, connectors, and methods | |
| MX2019015811A (en) | High fiber count pre-terminated optical distribution assembly. | |
| ECSP14019047A (en) | FIBER OPTIC CONNECTOR, FIBER OPTIC CONNECTOR AND CABLE ASSEMBLY, AND MANUFACTURING METHODS | |
| WO2012106510A3 (en) | Dense fiber optic connector assemblies and related connectors and cables suitable for establishing optical connections for optical backplanes in equipment racks | |
| WO2013086117A3 (en) | Gradient index (grin) lens holders employing groove alignment features(s) in recessed cover and single piece components, connectors, and methods | |
| IN2014DN10066A (en) | ||
| WO2014159702A3 (en) | Optical fiber ribbon imaging guidewire and methods | |
| WO2013165548A3 (en) | Multi-function beam delivery fibers and related system and method | |
| WO2014062272A3 (en) | Backwards compatible multi-core optical fiber | |
| MX2022002410A (en) | Fiber optic connectors and fiber optic connection systems. | |
| CN103852824B (en) | A kind of fibre reflector for PON monitoring | |
| CN203811840U (en) | Optical-fiber reflector for monitoring PON network | |
| CN208521035U (en) | A kind of visualization is pre-buried at end optical cable docking adapter | |
| CN203232169U (en) | PLC chip test system | |
| CN203799057U (en) | Jumper structure based on fiber grating technology and provided with OTDR reflector | |
| CN204945528U (en) | A kind of polarization has nothing to do fibre optic isolater | |
| CN208239662U (en) | Multi-core optical fiber reflector | |
| CN106209219A (en) | Joints of optical fibre insertion loss detecting system | |
| CN203930128U (en) | The SC type joints of optical fibre | |
| CN202166762U (en) | Contact pin used for single-fiber bidirectional component | |
| CN203799059U (en) | Jumper structure based on coating technology and provided with OTDR reflector | |
| CN106154432A (en) | A kind of assembling Anti-stiff LC type flexible jumper | |
| CN202563121U (en) | Optical filter device for assisting FTTH network link on-line monitoring | |
| ES2723027T3 (en) | Fiber optic connection device | |
| CN204882959U (en) | Two -way optical communication devices of single fiber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |