CN206820755U - A kind of optical module based on XFP transmission over long distances - Google Patents
A kind of optical module based on XFP transmission over long distances Download PDFInfo
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- CN206820755U CN206820755U CN201720398571.4U CN201720398571U CN206820755U CN 206820755 U CN206820755 U CN 206820755U CN 201720398571 U CN201720398571 U CN 201720398571U CN 206820755 U CN206820755 U CN 206820755U
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- xfp
- optical module
- distributed feedback
- long distances
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Abstract
A kind of optical module based on XFP transmission over long distances is the utility model is related to, the optical module includes：Housing, master chip, distributed feedback laser, light-receiving component and MCU controllers are provided with the housing；The light-receiving component includes:Avalanche photodide and trans-impedance amplifier；Balanced device, the first clock data recovery circuit, limiting amplifier, distributed feedback laser driver and second clock data recovery circuit are integrated with the master chip.The utility model is substituted first with costly refrigeration mode laser using distributed feedback laser, and laser driver is replaced as needed, and transmission range can also reach 60km, overall optical mode block cost is reduced in the case where ensureing transmission range, and the complexity for reducing design reduces the quantity of device, manufacture craft difficulty is reduced.
Description
Technical field
It the utility model is related to optical module receive-transmit system, more particularly to a kind of optical module based on XFP transmission over long distances.
Background technology
Existing 10G XFP long ranges module is all the 1550nm refrigeration modes using costly Japan or imported from America
Laser, the scheme of laser driving circuit is also the higher special drive circuit of refrigeration mode laser of cost.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of optical module based on XFP transmission over long distances, is protecting
In the case of demonstrate,proving transmission range, the cost of overall optical module is reduced.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：A kind of optical mode based on XFP transmission over long distances
Block, including housing, master chip, distributed feedback laser, light-receiving component and MCU controllers are provided with the housing；Institute
Stating light-receiving component includes:Avalanche photodide and trans-impedance amplifier；Balanced device, the first clock are integrated with the master chip
Data recovery circuit, limiting amplifier, distributed feedback laser driver and second clock data recovery circuit；The equilibrium
Device, the first clock data recovery circuit and the distributed feedback laser driver are sequentially connected, and the distributed Feedback swashs
Light device driver electrically connects with the distributed feedback laser；It is the avalanche photodide, the trans-impedance amplifier, described
Limiting amplifier and the second clock data recovery circuit are sequentially connected；The MCU controllers and the master chip, distribution
Feedback laser and light-receiving component connect respectively.
The beneficial effects of the utility model are：The utility model is substituted first with costly using distributed feedback laser
Refrigeration mode laser, and replace laser driver as needed, and transmission range can also reach 60km, ensure to transmit
Overall optical mode block cost is reduced in the case of distance, and the complexity for reducing design reduces the quantity of device, reduces
Manufacture craft difficulty.
On the basis of above-mentioned technical proposal, the utility model can also do following improvement.
Further, automatic power control circuit, the automatic power control circuit and institute are also integrated with the master chip
State distributed feedback laser electrical connection.
It is using the above-mentioned further beneficial effect of scheme：By automatic power control circuit to distributed feedback laser
The laser bias current that driver is sent is controlled, and avoids laser bias current fluctuation from making the power of laser unstable,
Caused by laser temperature raise.
Further, supply unit is additionally provided with the housing, the supply unit includes：3.3V power supplys and 5V power supplys,
The supply unit is electrically connected with the master chip, light emission component, light-receiving component respectively by MCU controllers.
It is using the above-mentioned further beneficial effect of scheme：Supply unit for all parts when powering, according to predetermined suitable
Sequence is powered up successively, to protect the utility model not receive damage because of voltage jump when hot plug.
Further, the MCU controllers also communicate to connect with host computer.
It is using the above-mentioned further beneficial effect of scheme：MCU controllers are connected with all parts, obtain laser temperature
The luminous power and avalanche photodide that bias current that value, driver are sent, modulation electric current, avalanche photodide receive
Light whether is received, and the every numerical value got is sent in host computer and shown.
Further, the surface of shell is provided with data-interface, and the master chip is set by the data-interface with external
Standby connection, the external equipment include：Interchanger.
Further, the model GN2010D of the master chip.
Further, the model ADUC7023 of the MCU controllers.
It is using the above-mentioned further beneficial effect of scheme：Realized using the MCU controllers of ADUC7023 models to each
The monitoring of part.
Further, the scope of the optical maser wavelength of distributed feedback laser transmitting is 1310 nanometers -1320 nanometers.
It is using the above-mentioned further beneficial effect of scheme：It is transmitted, is reduced by the longer laser of launch wavelength
The loss of laser, improve efficiency of transmission.
Further, the power of the distributed feedback laser driver is 1W.
It is using the above-mentioned further beneficial effect of scheme：Traditional special drive circuit power consumption of refrigeration mode laser is
2W, and use distributed feedback laser to carry out opto-electronic conversion and carry out data transmission, its power consumption of driver only has 1W.
Brief description of the drawings
Fig. 1 is a kind of optical module connection diagram based on XFP transmission over long distances that the utility model embodiment provides；
Fig. 2 is a kind of optical module automated power based on XFP transmission over long distances that another embodiment of the utility model provides
Control circuit and distributed feedback laser connection diagram；
Fig. 3 is that power supply fills in a kind of optical module transmitted over long distances based on XFP that another embodiment of the utility model provides
Put by MCU controllers and master chip, light emission component and light-receiving component connection diagram.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
As shown in figure 1, a kind of optical module based on XFP transmission over long distances, including housing, main core is provided with the housing
Piece, light emission component, distributed feedback laser and MCU controllers；The light-receiving component includes:Avalanche photodide and
Trans-impedance amplifier；It is anti-that balanced device, the first clock data recovery circuit, limiting amplifier, distribution are integrated with the master chip
Present laser driver and second clock data recovery circuit；The balanced device, the first clock data recovery circuit and described point
Cloth feedback laser driver is sequentially connected, the distributed feedback laser driver and the distributed feedback laser
Electrical connection；The avalanche photodide, the trans-impedance amplifier, the limiting amplifier and the second clock data recovery
Circuit is sequentially connected；The MCU controllers are connected respectively with the master chip, distributed feedback laser and light-receiving component.
The MCU controllers are connected by I2C data/address bus with the master chip, are deposited to control and change in master chip
The value of device, the underlying parameter value of all parts integrated in master chip is set by changing master chip phase storage different value.
As shown in Figure 2, it is preferred that automatic power control circuit, the automated power control are also integrated with the master chip
Circuit processed is determined laser with the distributed Feedback and electrically connected, and automatic power control circuit is launched according to distributed feedback laser
Laser signal luminous power, to input distributed feedback laser bias current be controlled, ensure laser transmitting swash
Optical signal luminous power is constant, and laser temperature caused by avoiding laser signal optical power fluctuation raises.Automatic power control circuit
It can be configured by the bias current that two ways receives to distributed feedback laser machine：The first, master chip register is set
APC-REG5 second APCOVER, the loop of automatic power control circuit and bypass are removed, make automatic power control circuit
Directly control bias current, two, make automatic power control circuit loop formed close loop negative feedback, by automatic power control circuit with
The magnitude of voltage of master chip VPHOTO pin feedback is compared, and magnitude of voltage and the distributed feedback laser of VPHOTO pin feedback are launched
The proportional relation of laser signal luminous power, by automatic power control circuit make VPHOTO pin feed back voltage value stabilization pre-
If value, and then cause the stable setting value of reflected optical power.
As shown in Figure 3, it is preferred that supply unit is additionally provided with the housing, the supply unit includes：3.3V power supply
With 5V power supplys, the supply unit is electrically connected with the master chip, light emission component, light-receiving component respectively by MCU controllers
Connect, supply unit is powered up when electric on for all parts successively according to predefined procedure, to protect the utility model to be inserted in heat
Damage will not be received when pulling out because of voltage jump.
Preferably, the MCU controllers are also communicated to connect with host computer, and MCU controllers are connected with all parts, are obtained and are swashed
The luminous power and snowslide light that bias current that light device temperature value, driver are sent, modulation electric current, avalanche photodide receive
Whether electric diode receives light, and the every numerical value got is sent in host computer and shown.
Preferably, the surface of shell is provided with data-interface, and the master chip is set by the data-interface with external
Standby connection, the external equipment include：Interchanger.
Preferably, the model GN2010D of the master chip.
Preferably, the model ADUC7023 of the MCU controllers.
Preferably, the scope of the optical maser wavelength of distributed feedback laser transmitting is 1310 nanometers -1320 nanometers.
Preferably, the power of the distributed feedback laser driver is 1W, special using traditional refrigeration mode laser
It is 2W with drive circuit power, it is lower from the power of distributed feedback laser driver according to distributed feedback laser, subtract
Few energy consumption.
Embodiment：Electric signal is entered by master chip GN2010D TXDIP pin and TXDIN pin, during by balanced device and first
After clock data recovery circuit carries out shaping and timing to electric signal, distributed feedback laser driver passes through according to electric signal
TXDOP pin and TXDON pin output bias current and modulation electric current, are sent to distributed feedback laser, distributed feedback laser
Device is according to bias current and modulation current emission laser signal, and automatic power control circuit is according to the optical power control of laser signal
It is bias current that distributed feedback laser, which receives, and then controls the luminous power of laser signal to keep constant；Avalanche optoelectronic two
Pole pipe receives laser signal and is converted into electric signal, is amplified in advance by trans-impedance amplifier, is then output to amplitude limit
Amplifier is further amplified, and electric signal is carried out into data recovery eventually through second clock data recovery circuit and passes through number
External equipment is transferred to according to interface.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (9)
1. a kind of optical module based on XFP transmission over long distances, including housing, it is characterised in that be provided with main core in the housing
Piece, distributed feedback laser, light-receiving component and MCU controllers；The light-receiving component includes:Avalanche photodide and
Trans-impedance amplifier；It is anti-that balanced device, the first clock data recovery circuit, limiting amplifier, distribution are integrated with the master chip
Present laser driver and second clock data recovery circuit；The balanced device, the first clock data recovery circuit and described point
Cloth feedback laser driver is sequentially connected, the distributed feedback laser driver and the distributed feedback laser
Electrical connection；The avalanche photodide, the trans-impedance amplifier, the limiting amplifier and the second clock data recovery
Circuit is sequentially connected；The MCU controllers are connected respectively with the master chip, distributed feedback laser and light-receiving component.
A kind of 2. optical module based on XFP transmission over long distances according to claim 1, it is characterised in that the master chip
Automatic power control circuit is inside also integrated with, the automatic power control circuit electrically connects with the distributed feedback laser.
3. a kind of optical module based on XFP transmission over long distances according to claim 1, it is characterised in that in the housing
Supply unit is additionally provided with, the supply unit includes：3.3V power supplys and 5V power supplys, the supply unit pass through MCU controllers
Electrically connected respectively with the master chip, light emission component, light-receiving component.
A kind of 4. optical module based on XFP transmission over long distances according to claim 1, it is characterised in that the MCU controls
Device also communicates to connect with host computer.
A kind of 5. optical module based on XFP transmission over long distances according to claim 1, it is characterised in that the housing table
Face is provided with data-interface, and the master chip is connected by the data-interface with external equipment, and the external equipment includes：Hand over
Change planes.
A kind of 6. optical module based on XFP transmission over long distances according to claim 1, it is characterised in that the master chip
Model GN2010D.
A kind of 7. optical module based on XFP transmission over long distances according to claim 1, it is characterised in that the MCU controls
The model ADUC7023 of device.
A kind of 8. optical module based on XFP transmission over long distances according to claim 1, it is characterised in that distributed Feedback
The scope of the optical maser wavelength of laser transmitting is 1310 nanometers -1320 nanometers.
A kind of 9. optical module based on XFP transmission over long distances according to any one of claim 1-8, it is characterised in that
The power of the distributed feedback laser driver is 1W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720398571.4U CN206820755U (en) | 2017-04-17 | 2017-04-17 | A kind of optical module based on XFP transmission over long distances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720398571.4U CN206820755U (en) | 2017-04-17 | 2017-04-17 | A kind of optical module based on XFP transmission over long distances |
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| Publication Number | Publication Date |
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| CN206820755U true CN206820755U (en) | 2017-12-29 |
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| CN201720398571.4U Active CN206820755U (en) | 2017-04-17 | 2017-04-17 | A kind of optical module based on XFP transmission over long distances |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911390A (en) * | 2017-04-17 | 2017-06-30 | 武汉飞鹏光科技有限公司 | A kind of optical module transmitted over long distances based on XFP |
-
2017
- 2017-04-17 CN CN201720398571.4U patent/CN206820755U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911390A (en) * | 2017-04-17 | 2017-06-30 | 武汉飞鹏光科技有限公司 | A kind of optical module transmitted over long distances based on XFP |
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