CN103650388B - Optical assembly and passive optical network PON system - Google Patents
Optical assembly and passive optical network PON system Download PDFInfo
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- CN103650388B CN103650388B CN201380001369.8A CN201380001369A CN103650388B CN 103650388 B CN103650388 B CN 103650388B CN 201380001369 A CN201380001369 A CN 201380001369A CN 103650388 B CN103650388 B CN 103650388B
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- 230000003287 optical Effects 0.000 title claims abstract description 228
- 230000000875 corresponding Effects 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 230000000051 modifying Effects 0.000 claims description 8
- 235000011449 Rosa Nutrition 0.000 claims description 4
- 230000002457 bidirectional Effects 0.000 claims description 4
- 238000007710 freezing Methods 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000001702 transmitter Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention discloses a kind of optical assembly and passive optical network PON system, relate to communication technical field, reduce the encapsulation requirement of optical module, thus decrease cost.This optical assembly, including: optical module and and communication single-board；Optical module interface it is provided with on described communication single-board；It is provided with optical device on described optical module and is connected to the golden finger of described optical device, described golden finger optical module interface on communication single-board described in grafting；The electrical chip corresponding with described optical module it is provided with on described communication single-board；The communication pin of described electrical chip is connected to the communication pin of described optical module interface；Feeder ear, is connected to power pin and the power pin of described electrical chip of described optical module interface；One-board power supply, is connected to described feeder ear by switch.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of optical assembly and passive optical network PON system.
Background technology
In current optical communication system, optical module is plugged on communication single-board by golden finger, and optical module includes light device
Part and electrical chip, wherein optical device can be bidirectional optical module (Bi-directional Optical Sub Assembly,
BOSA), it is also possible to add reception optical module for launching optical module (Transmitter Optical Sub Assembly, TOSA)
(Receiver Optical Sub Assembly, ROSA).Along with the raising of optical module transfer rate, its port number comprised
Amount also gets more and more so that the power consumption of optical module is increasing, pluggable (the Small Form of small size that usual optical module uses
Pluggable, SFP) encapsulate or pluggable (the 10Gigabit Small Form Factor of 10 gigabit small sizes
Pluggable, XFP) encapsulate the limited power consumption supported, it is impossible to meet the requirement of optical module.
By use, prior art supports that optical module is packaged by the encapsulation mode of higher power consumption, this can increase substantially
Cost；Or the quantity of optical module on minimizing communication single-board, this can cause the waste of communication single-board performance, add equipment equally
Cost.
Summary of the invention
The invention provides a kind of optical assembly and passive optical network PON system, reduce the encapsulation requirement of optical module, thus
Decrease cost.
For solving above-mentioned technical problem, present invention employs following technical scheme:
On the one hand, it is provided that a kind of optical assembly, including:
Optical module and and communication single-board；
Optical module interface it is provided with on described communication single-board；
Being provided with optical device on described optical module and be connected to the golden finger of described optical device, described golden finger is used for grafting
Optical module interface on described communication single-board；
The electrical chip corresponding with described optical module it is provided with on described communication single-board；
The communication pin of described electrical chip is connected to the communication pin of described optical module interface；
Feeder ear, is connected to power pin and the power pin of described electrical chip of described optical module interface；
One-board power supply, is connected to described feeder ear by switch.
Specifically, described electrical chip includes: laser driver, for driving the optical sender in described optical device or swashing
Light device；
Thermoelectric refrigerator, is used for freezing；
Avalanche photodiode biasing chip, for providing running voltage for the receiver in described optical device；
Limiting amplifier, for being amplified the signal that described optical device receives；
It is connected to the micro-of described laser driver, thermoelectric refrigerator, avalanche photodiode biasing chip and limiting amplifier
Controller, described microcontroller controls for information and assembly.
Specifically, described electrical chip also includes:
Electro-absorption modulation driver, for driving the optical sender in described optical device；
And/or clock data restorer, the signal sent for the signal received by described optical device or needs is carried out
Recover.
Specifically, described switch is mechanical switch or electrical switch.
Further, described optical module is provided with draw ring, for the control of described communication unit on-board switching, when described light
When golden finger in module is plugged in the optical module interface on described communication single-board, promote described draw ring the most described switch Guan Bi,
Switch off described in after pulling described draw ring then to close.
On the other hand, it is provided that a kind of passive optical network PON system, including: optical line terminal OLT, optical network unit ONU,
And for connecting described optical line terminal and the passive optical splitter of described optical network unit, wherein,
Described OLT or at least one ONU described includes the optical assembly as according to any one of claim 1-6.
The optical assembly of present invention offer and passive optical network PON system, by arranging on the communication single-board in optical assembly
Electrical chip and for control power supply switch so that optical module can arrange small number of electrical chip or be not provided with battery core
Sheet, therefore reduces the power consumption of optical module, i.e. reduces the encapsulation requirement of optical module, thus decreases cost.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structured flowchart of a kind of optical assembly in the embodiment of the present invention；
Fig. 2 is the structured flowchart of a kind of another kind of optical assembly in the embodiment of the present invention；
Fig. 3 is the structured flowchart of another kind of optical assembly in the embodiment of the present invention；
Fig. 4 is the structured flowchart of a kind of passive optical network in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, the embodiment of the present invention provides a kind of optical assembly, including: optical module 1 and communication single-board 2；Communication single-board
Optical module interface 21 it is provided with on 2；It is provided with optical device 11 on optical module 1 and is connected to the golden finger of optical device 11, this gold hands
Refer to the optical module interface 21 on grafting communication single-board 2；The electrical chip 22 corresponding with optical module 1 it is provided with on communication single-board 2,
The communication pin of electrical chip 22 is connected to the communication pin of optical module interface 21；Feeder ear 23, is connected to optical module interface 21
Power pin and the power pin of electrical chip 22；One-board power supply 24, is connected to feeder ear 23 by switch 25.Specifically, communication
The electrical chip 22 arranged on veneer 2 can be all electrical chips that optical module 1 needs, and can only be provided with light device in optical module 1
Part 11, owing to electrical chip is arranged on communication single-board, and does not include electrical chip in optical module 1, therefore reduce optical module
Power consumption, i.e. reduces the encapsulation requirement of optical module, thus decreases cost；Or, optical module can also include part battery core
Sheet, part electrical chip additionally is arranged on communication single-board, reduces the power consumption of optical module equally, i.e. reduces the envelope of optical module
Reload request, thus decrease cost.Owing to being provided with electrical chip 22 on communication single-board 2, and optical module 1 needs to be plugged on communication unit
Work on plate 2, therefore to damage optical device or electrical chip when avoiding optical module warm swap, communication single-board 2 is arranged
For controlling as electrical chip 22 and the switch 25 of optical module 1 power supply.Specifically, before optical module 1 inserts communication single-board 2,
Switch 25 disconnection, it is ensured that electrical chip 22 and optical module interface 21 carry out optical module 1 when being off with one-board power supply 24
Grafting；After optical module 1 inserts communication single-board 2, switch 25 Guan Bi, making one-board power supply 24 is electrical chip by feeder ear 23
22 and optical module 1 power with normal work；Before optical module 1 extracts communication single-board 2, switch 25 disconnection, it is ensured that electrical chip 22
And optical module 1 carries out extracting of optical module 1 when being off with one-board power supply 24.
Optical assembly in the embodiment of the present invention, by arranging electrical chip and for controlling opening of power supply on communication single-board
Close so that optical module can arrange small number of electrical chip or be not provided with electrical chip, therefore reducing the merit of optical module
Consumption, i.e. reduces the encapsulation requirement of optical module, thus decreases cost.
Specifically, as in figure 2 it is shown, above-mentioned electrical chip 22 may include that laser driver (Laser Diode Driver,
LDD) 12, for driving the optical sender in optical device 11 or laser instrument；Thermoelectric refrigerator (Thermoelectric
Cooler, TEC) 13, it is used for freezing；Avalanche photodiode biasing chip (Avalanche Photo Diode Bias, APD
Bias) 15, for providing running voltage for the receiver in optical device 11；Limiting amplifier (Limiting Amplifier,
LA) 16, for the signal that optical device 11 receives is amplified；Be connected to above-mentioned laser driver 12, thermoelectric refrigerator 13,
Avalanche photodiode biasing chip 15 and the microcontroller (Micro Controller Unit, MCU) 14 of limiting amplifier 16,
This microcontroller 14 controls for information and assembly, i.e. collect each electrical chip information and to each electrical chip or
Optical device 11 is controlled, such as, be controlled the cryogenic temperature of thermoelectric refrigerator 13 or the running voltage of sun adjuster part 11
It is controlled.Part electrical chip in above-mentioned five electrical chips can also be arranged in optical module.
Above-mentioned electrical chip 22 can also include: electro-absorption modulation (Electro-Absorption Modulator, EAM) is driven
Dynamic device, for driving the optical sender in optical device 11, specifically, EAM is the one of optical sender, the light in optical device 11
When transmitter is EAM, need electro-absorption modulation driver and above-mentioned laser driver 12 this EAM to be driven simultaneously；With/
Or clock data restorer (Clock Data Recover, CDR), CDR can have two, and the transmission being respectively arranged at signal is led to
Road and receiving on passage, owing to signal is likely to be broken during transmission, therefore uses CDR to enter to recover to signal and again
Raw, thus ensure the integrity of signal.
Specifically, above-mentioned switch 25 can be mechanical switch or electrical switch.Optical device 11 includes bidirectional optical module BOSA；
Or, optical device 11 includes launching optical module TOSA and receiving optical module ROSA.
Alternatively, as it is shown on figure 3, be provided with draw ring 3 on optical module 1, on communication single-board 2, switch the control of 25, when
When golden finger on optical module 1 is plugged in the optical module interface on communication single-board 2, promotes draw ring 3 then to switch 25 Guan Bis, pull
Switch 25 after ring 3 then closes disconnects, and pulls on draw ring 3, then can be extracted by optical module 1.The structure using draw ring 3 is permissible
The control of switch 25 and the plug of optical module 1 will be combined, it is to avoid during optical module warm swap, damage optical device or electricity
Use convenient while chip.Such as, when optical module 1 inserts communication single-board 2, between the control end of draw ring 3 and switch 25
At a certain distance, continue to press on draw ring 3 and can make the controller of draw ring 3 contact switch 25, so that switch 25 Guan Bi；At needs
When extracting optical module 1, first pull draw ring 3, make draw ring 3 leave the controller of switch 25, so that switch 25 disconnection, continue to draw
Dynamic draw ring 3 then can drive optical module 1 to be pulled out communication single-board 2.Certainly, in addition to using draw ring 3 and switch 25 is controlled, also
Switch is controlled by the controller that can use button or other structures, and the controller now switched can be arranged at communication unit
On the panel of plate.
Concrete structure and the operation principle of optical assembly are same as the previously described embodiments, do not repeat them here.
Optical assembly in the embodiment of the present invention, by arranging electrical chip and for controlling opening of power supply on communication single-board
Close so that optical module can arrange small number of electrical chip or be not provided with electrical chip, therefore reducing the merit of optical module
Consumption, i.e. reduces the encapsulation requirement of optical module, thus decreases cost.
As shown in Figure 4, the embodiment of the present invention provides a kind of EPON (Passive Optical Network, PON)
System, including: optical line terminal (Optical Line Terminal, OLT) 4, optical network unit (Optical Network
Unit, ONU) 5, and for connecting the passive optical splitter 6 of optical line terminal 4 and optical network unit 5, optical line terminal 4 passes through
Trunk optical fiber is connected with passive optical splitter 6, and passive optical splitter 6 is connected with each optical network unit 5 by each branch optical fiber, its
In, described trunk optical fiber, passive optical splitter 6 and branch optical fiber constitute Optical Distribution Network.
Concrete, optical line terminal 4 can include that optical assembly as described below, optical network unit 5 can also include as follows
Described optical assembly, as it is shown in figure 1, concrete optical assembly includes: optical module 1 and communication single-board 2；It is provided with light on communication single-board 2
Module interface 21；Being provided with optical device 11 on optical module 1 and be connected to the golden finger of optical device 11, this golden finger leads to for grafting
Optical module interface 21 on letter veneer 2；The electrical chip 22 corresponding with optical module 1 it is provided with, leading to of electrical chip 22 on communication single-board 2
Fuse tube foot is connected to the communication pin of optical module interface 21；Feeder ear 23, is connected to power pin and the electricity of optical module interface 21
The power pin of chip 22；One-board power supply 24, is connected to feeder ear 23 by switch 25.
As in figure 2 it is shown, above-mentioned electrical chip 22 may include that laser driver (Laser Diode Driver, LDD) 12,
For driving the optical sender in optical device 11 or laser instrument；Thermoelectric refrigerator (Thermoelectric Cooler, TEC)
13, it is used for freezing；Avalanche photodiode biasing chip (Avalanche Photo Diode Bias, APD Bias) 15, is used for
Running voltage is provided for the receiver in optical device 11；Limiting amplifier (Limiting Amplifier, LA) 16, for by light
The signal that device 11 receives is amplified；It is connected to above-mentioned laser driver 12, thermoelectric refrigerator 13, avalanche photodiode inclined
Putting the microcontroller (Micro Controller Unit, MCU) 14 of chip 15 and limiting amplifier 16, this microcontroller 14 is used
Control in information and assembly, i.e. collect the information of each electrical chip and each electrical chip or optical device 11 are controlled
System, such as, be controlled the cryogenic temperature of thermoelectric refrigerator 13 or the running voltage of sun adjuster part 11 be controlled.Also
Part electrical chip in above-mentioned five electrical chips can be arranged in optical module.
Above-mentioned electrical chip 22 can also include: electro-absorption modulation (Electro-Absorption Modulator, EAM) is driven
Dynamic device, for driving the optical sender in optical device 11, specifically, EAM is the one of optical sender, the light in optical device 11
When transmitter is EAM, need electro-absorption modulation driver and above-mentioned laser driver 12 this EAM to be driven simultaneously；With/
Or clock data restorer (Clock Data Recover, CDR), CDR can have two, and the transmission being respectively arranged at signal is led to
Road and receiving on passage, owing to signal is likely to be broken during transmission, therefore uses CDR to enter to recover to signal and again
Raw, thus ensure the integrity of signal.
Specifically, above-mentioned switch 25 can be mechanical switch or electrical switch.Optical device 11 includes bidirectional optical module BOSA；
Or, optical device 11 includes launching optical module TOSA and receiving optical module ROSA.
Alternatively, as it is shown on figure 3, be provided with draw ring 3 on optical module 1, on communication single-board 2, switch the control of 25, when
When golden finger on optical module 1 is plugged in the optical module interface on communication single-board 2, promotes draw ring 3 then to switch 25 Guan Bis, pull
Switch 25 after ring 3 then closes disconnects, and pulls on draw ring 3, then can be extracted by optical module 1.The structure using draw ring 3 is permissible
The control of switch 25 and the plug of optical module 1 will be combined, it is to avoid during optical module warm swap, damage optical device or electricity
Use convenient while chip.
Passive optical network in the embodiment of the present invention, by arrange on the communication single-board in optical assembly electrical chip and
For controlling the switch of power supply so that optical module can arrange small number of electrical chip or be not provided with electrical chip, therefore
Reduce the power consumption of optical module, i.e. reduce the encapsulation requirement of optical module, thus decrease cost.
Through the above description of the embodiments, those skilled in the art is it can be understood that can borrow to the present invention
The mode helping software to add required common hardware realizes, naturally it is also possible to by hardware, but a lot of in the case of the former is more preferably
Embodiment.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (7)
1. an optical assembly, it is characterised in that including:
Optical module and and communication single-board；
Optical module interface it is provided with on described communication single-board；
Being provided with optical device on described optical module and be connected to the golden finger of described optical device, described golden finger is for described in grafting
Optical module interface on communication single-board；
The electrical chip corresponding with described optical module it is provided with on described communication single-board；
The communication pin of described electrical chip is connected to the communication pin of described optical module interface；
Feeder ear, is connected to power pin and the power pin of described electrical chip of described optical module interface；
One-board power supply, is connected to described feeder ear by switch.
Optical assembly the most according to claim 1, it is characterised in that
Described electrical chip includes:
Laser driver, for driving the optical sender in described optical device or laser instrument；
Thermoelectric refrigerator, is used for freezing；
Avalanche photodiode biasing chip, for providing running voltage for the receiver in described optical device；
Limiting amplifier, for being amplified the signal that described optical device receives；
It is connected to described laser driver, thermoelectric refrigerator, avalanche photodiode biasing chip and the microcontroller of limiting amplifier
Device, described microcontroller controls for information and assembly.
Optical assembly the most according to claim 2, it is characterised in that
Described electrical chip also includes:
Electro-absorption modulation driver, for driving the optical sender in described optical device；
And/or clock data restorer, the signal sent for the signal received by described optical device or needs recovers.
Optical assembly the most as claimed in any of claims 1 to 3, it is characterised in that
Described switch is mechanical switch or electrical switch.
Optical assembly the most according to claim 4, it is characterised in that
It is provided with draw ring, for the control of described communication unit on-board switching, when the golden hands on described optical module on described optical module
When referring to the optical module interface being plugged on described communication single-board, promote described draw ring the most described switch Guan Bi, pull described draw ring
Switch off described in then after Guan Bi.
Optical assembly the most as claimed in any of claims 1 to 3, it is characterised in that
Described optical device includes bidirectional optical module BOSA；
Or, described optical device includes launching optical module TOSA and receiving optical module ROSA.
7. a passive optical network PON system, it is characterised in that including: optical line terminal OLT, optical network unit ONU, and use
In connecting described optical line terminal and the passive optical splitter of described optical network unit, wherein,
Described OLT or at least one ONU described includes the optical assembly as according to any one of claim 1-6.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/080294 WO2015013856A1 (en) | 2013-07-29 | 2013-07-29 | Optical assembly and passive optical network (pon) system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103650388A CN103650388A (en) | 2014-03-19 |
| CN103650388B true CN103650388B (en) | 2016-11-30 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1996809A (en) * | 2006-01-04 | 2007-07-11 | 华为技术有限公司 | The system and method for enhancing the robustness of the passive optical network |
| CN201243290Y (en) * | 2008-07-21 | 2009-05-20 | 青岛海信宽带多媒体技术股份有限公司 | Inserting/pulling type light transmit-receive integrated module for Ether passive optical network |
| CN102298401A (en) * | 2011-05-23 | 2011-12-28 | 成都新易盛通信技术有限公司 | Long-distance SFP+ optical module |
| CN102843190A (en) * | 2012-08-06 | 2012-12-26 | 青岛海信宽带多媒体技术有限公司 | Optical module and optical module chip |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1996809A (en) * | 2006-01-04 | 2007-07-11 | 华为技术有限公司 | The system and method for enhancing the robustness of the passive optical network |
| CN201243290Y (en) * | 2008-07-21 | 2009-05-20 | 青岛海信宽带多媒体技术股份有限公司 | Inserting/pulling type light transmit-receive integrated module for Ether passive optical network |
| CN102298401A (en) * | 2011-05-23 | 2011-12-28 | 成都新易盛通信技术有限公司 | Long-distance SFP+ optical module |
| CN102843190A (en) * | 2012-08-06 | 2012-12-26 | 青岛海信宽带多媒体技术有限公司 | Optical module and optical module chip |
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