CN203691409U - Optical network unit device - Google Patents
Optical network unit device Download PDFInfo
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- CN203691409U CN203691409U CN201320533407.1U CN201320533407U CN203691409U CN 203691409 U CN203691409 U CN 203691409U CN 201320533407 U CN201320533407 U CN 201320533407U CN 203691409 U CN203691409 U CN 203691409U
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- network unit
- optical network
- optical
- reflector
- transceiver module
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Abstract
The utility model relates to an optical network unit device. An optical fiber link of the optical network unit device is provided with a thin film reflector for transmitting signals and reflecting detection light. The thin film reflector is integrated on the optical fiber link of the optical network unit device and the thin film reflector can transmits the signal light and reflect detection light, and a pluggable reflector is not needed to be installed on a connector of the optical network device unit, so that the cost is reduce, the uncertainty caused by the external pluggable reflector can be avoided and the reliability of the device is guaranteed.
Description
Technical field
The utility model belongs to optical communication technique field, relates in particular to a kind of device of optical network unit.
Background technology
Along with the development of Fibre Optical Communication Technology, the demand that people increase for bandwidth has promoted Optical Access Network FTTH(Fiber To The Home, Fiber to the home) and PON(Passive Optical Network, EPON) development of network, along with the increase of number of users, the maintenance of the network equipment becomes a very important job, in order to realize the monitoring of PON network quality, as shown in Figure 1, generally take OTDR(Optical Time Domain Reflectometer, optical time domain reflectometer) at OLT(Optical Line Terminal, optical fiber cable termination equipment) side emission detection light, survey light by ODN(Optical Division Note, optical-fiber network distribution node) equipment is to each ONU(Optical Net Unit, optical network unit) equipment, survey light and carry out light reflection at each ONU equipment place, finally realizing line fault surveys.In order to navigate to each user's ONU equipment, with reference to Fig. 2, show a structure for the typical ONU equipment of FTTX, mainly comprise optical transceiver module (BOSA) and some control unit (not shown)s, in order to reach the object of circuit monitoring, need to be on the connector of ONU external one can plug reflector, be used for reflecting the detection light of OTDR, generally this to survey light wavelength be 1625nm～1650nm.Can plug reflector needs to make and buy separately, is assembled up by workmen, usually because quality control on construction problem causes connector end surface pollution, causes communication line fault.This method need to increase extra device, has increased user's cost, also can bring equipment dependability problem with stylish device.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of device of optical network unit, and being intended to solve existing device of optical network unit needs the external reflector that plugs, and has not only increased user cost but also can affect the technical problem of equipment dependability.
The utility model is achieved in that a kind of device of optical network unit comprises, is provided with the pellicle reflector of surveying light for transmission signal light, reflection on its optical fiber link.
Further, described device of optical network unit comprises optical transceiver module and connector assembly, between described optical transceiver module and described connector assembly, is connected by optical patchcord, and described pellicle reflector is arranged in described optical transceiver module or connector assembly.
Further, described optical transceiver module comprises laser, filter, reception photodiode and ceramic insertion core, and described ceramic insertion core is positioned on described laser illumination light circuit, and described pellicle reflector is positioned on the insertion core end face of described ceramic insertion core.
Further, described connector assembly comprises the Drop cable connector of out connector to match with described out connector, and described pellicle reflector is positioned on the output end face of described out connector.
Further, described pellicle reflector is the dielectric film that vacuum is coated with, or for being coated with the thin slice of dielectric film.
Further, described pellicle reflector, in 1260nm～1360nm and the transmission of 1460nm～1581nm wave band, reflects at 1610nm～1660nm wave band.
The beneficial effects of the utility model are: on the optical fiber link of the device of optical network unit that the utility model provides, be integrated with pellicle reflector, and described pellicle reflector can transmission signal light and reflection detection light.Like this without in the attachment unit interface of device of optical network unit in addition installation can plug reflector, when reducing costs, avoided plugging due to external the uncertainty that reflector brings, ensured the reliability of equipment.
Brief description of the drawings
Fig. 1 is existing PON Network Fault Detection schematic diagram;
Fig. 2 is a kind of structure chart of existing device of optical network unit;
Fig. 3 is a kind of structure chart of the device of optical network unit that provides of the utility model embodiment;
Fig. 4 is the another kind of structure chart of the device of optical network unit that provides of the utility model embodiment;
Fig. 5 is the third structure chart of the device of optical network unit that provides of the utility model embodiment;
Fig. 6 is the 4th kind of structure chart of the device of optical network unit that provides of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model arranges pellicle reflector on the optical fiber link of device of optical network unit, flashlight in ONU equipment can see through described pellicle reflector transmission, the detection light of OTDR reflects through described pellicle reflector, as a kind of example, described pellicle reflector, in 1260nm～1360nm and the transmission of 1460nm～1581nm wave band, reflects at 1610nm～1660nm wave band.For technical scheme described in the utility model is described, describe below by specific embodiment.
Fig. 3 shows a kind of structure of the device of optical network unit that the utility model embodiment provides, and only shows for convenience of explanation the part relevant to the utility model embodiment.
Device of optical network unit shown in Fig. 3 comprises optical transceiver module 1 and connector assembly 2, between described optical transceiver module 1 and described connector assembly 2, be connected by optical patchcord 3, pellicle reflector 4 is arranged in described optical transceiver module 1, in the time that flashlight and OTDR survey light and arrive the optical transceiver module 1 of ONU, flashlight can be from described optical transceiver module 1 pellicle reflector 4 transmissive, OTDR surveys light and can be reflected back, and finally completes ONU location.
Preferably, with reference to the another kind of structure of the device of optical network unit described in Fig. 4, described optical transceiver module 1 comprises laser 11, filter 12, receives photodiode 13 and ceramic insertion core 14, described ceramic insertion core position 14 is on described laser illumination light circuit, and described pellicle reflector 4 is positioned on the insertion core end face of described ceramic insertion core 14.This optimal way further discloses the concrete preferred structure of one of optical transceiver module 1, and described pellicle reflector 4 is arranged on the insertion core end face of ceramic insertion core 14.
Fig. 5 shows the third structure of the device of optical network unit that the utility model embodiment provides, only shows for convenience of explanation the part relevant to the utility model embodiment.
Device of optical network unit shown in Fig. 5 comprises optical transceiver module 1 and connector assembly 2, between described optical transceiver module 1 and described connector assembly 2, be connected by optical patchcord 3, pellicle reflector 4 is arranged in described connector assembly 2, in the time that flashlight and OTDR survey light and arrive the connector assembly 2 of ONU, flashlight can be from described connector assembly 2 pellicle reflector 4 transmissive, OTDR surveys light and can be reflected back, and finally completes ONU location.
Preferably, with reference to the 4th kind of structure of the device of optical network unit shown in Fig. 6, described connector assembly 2 comprises the Drop cable connector 22 of out connector 21 to match with described out connector 21, and described pellicle reflector 4 is positioned on the output end face of described out connector 21.This optimal way further discloses the concrete preferred structure of one of connector assembly 2, and described pellicle reflector 4 is arranged on the output end face of described out connector 21.
In above-mentioned each execution mode, the dielectric film that described pellicle reflector 4 is coated with for vacuum, or for being coated with the thin slice of dielectric film.While manufacturing, described pellicle reflector 4 can adopt on the end face of described ceramic insertion core (or on output end face of out connector) to make one deck dielectric film by the method for vacuum coating, or on a thin slice after vacuum coating, be bonded in by glue on the end face of ceramic insertion core (or on output end face of out connector), this thin slice can adopt macromolecular material or glass processing to make, thickness is generally no more than 50um, such as making when thin slice of macromolecular material, first by sol evenning machine, liquid macroimolecule material is evenly coated on substrate, then solidify macromolecular material and make thin slice, then adopt vacuum coating method on macromolecular material, to plate one deck WDM(Division Multiplexing, wavelength division multiplexing) dielectric film, finally dielectric film is cut into small pieces together with macromolecular material thin slice from substrate takes off and make pellicle reflector, on the direct end face that described small pieces is adhesive in to described ceramic insertion core (or on output end face of out connector).These two kinds of modes all can be accomplished large-scale production.
Finally need to indicate, two kinds of manufacture methods of above-mentioned pellicle reflector are that a kind of example is enumerated, and this embodiment does not limit said method.
To sum up, the utility model embodiment is by integrated thin-film reflector on the optical fiber link of device of optical network unit, and described pellicle reflector can transmission signal light and reflection detection light.Like this without in the attachment unit interface of device of optical network unit in addition installation can plug reflector, when reducing costs, avoided plugging due to external the uncertainty that reflector brings, ensured the reliability of equipment.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (6)
1. a device of optical network unit, is characterized in that, is provided with the pellicle reflector of surveying light for transmission signal light, reflection on the optical fiber link of described device of optical network unit.
2. device of optical network unit as claimed in claim 1, it is characterized in that, described device of optical network unit comprises optical transceiver module and connector assembly, between described optical transceiver module and described connector assembly, be connected by optical patchcord, described pellicle reflector is arranged in described optical transceiver module or connector assembly.
3. device of optical network unit as claimed in claim 2, it is characterized in that, described optical transceiver module comprises laser, filter, reception photodiode and ceramic insertion core, described ceramic insertion core is positioned on described laser illumination light circuit, and described pellicle reflector is positioned on the insertion core end face of described ceramic insertion core.
4. device of optical network unit as claimed in claim 2, is characterized in that, described connector assembly comprises the Drop cable connector of out connector to match with described out connector, and described pellicle reflector is positioned on the output end face of described out connector.
5. device of optical network unit as described in claim 1-4 any one, is characterized in that, described pellicle reflector is the dielectric film that vacuum is coated with, or for being coated with the thin slice of dielectric film.
6. described device of optical network unit as claimed in claim 5, is characterized in that, described pellicle reflector, in 1260nm～1360nm and the transmission of 1460nm～1581nm wave band, reflects at 1610nm～1660nm wave band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320533407.1U CN203691409U (en) | 2013-08-29 | 2013-08-29 | Optical network unit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320533407.1U CN203691409U (en) | 2013-08-29 | 2013-08-29 | Optical network unit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203691409U true CN203691409U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320533407.1U Expired - Lifetime CN203691409U (en) | 2013-08-29 | 2013-08-29 | Optical network unit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203691409U (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 |
| WO2018157767A1 (en) * | 2017-03-01 | 2018-09-07 | 陈佩娟 | Optical module having multi-wavelength coexistence |
-
2013
- 2013-08-29 CN CN201320533407.1U patent/CN203691409U/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 |
| WO2018157767A1 (en) * | 2017-03-01 | 2018-09-07 | 陈佩娟 | Optical module having multi-wavelength coexistence |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |