CN202353679U - 10 Gigabit emission optical module for video transmission - Google Patents
10 Gigabit emission optical module for video transmission Download PDFInfo
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- CN202353679U CN202353679U CN2011205212963U CN201120521296U CN202353679U CN 202353679 U CN202353679 U CN 202353679U CN 2011205212963 U CN2011205212963 U CN 2011205212963U CN 201120521296 U CN201120521296 U CN 201120521296U CN 202353679 U CN202353679 U CN 202353679U
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- laser driver
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Abstract
The utility model discloses a 10 Gigabit emission optical module for video transmission, which is only provided with optical signal transmission channels. The 10 Gigabit emission optical module comprises lasers and laser drivers, wherein data input ends of the laser drivers are connected with electrical interfaces on the optical module and are externally connected with a video signal source via the electrical interfaces for receiving a video signal, and the video signal is further modulated into a current signal which is used for driving the lasers to be loaded onto the lasers; and optical signals emitted from the lasers are transmitted to external optical fiber through an optical interface on the optical module. Bandwidth which is more than 10 times the bandwidth of the original optical module can be provided when the 10 Gigabit emission optical module disclosed by the utility model is applied to a transmission line of the video signal; the 10 Gigabit emission optical module has low attenuation and strong antijamming capability and can meet requirements of a current high definition video signal for long distance and high transmission rate better; moreover, by simultaneously arranging two paths of the optical signal transmission channels in the optical module, the design requirement for simultaneous transmission of two paths of the video signals with one optical module can be met, and the use density of the optical module is improved.
Description
Technical field
The utility model belongs to the optical communication technology field, specifically, relates to a kind of 10,000,000,000 emission optical modules that are applied to common public radio interface.
Background technology
At present optical communication market is in the stage of develop rapidly, and along with the maturation and the demand of market to bandwidth of technology, optical fiber telecommunications system has begun to be used on a large scale also progressively to have got into huge numbers of families.
At present, vision signal adopts cable to transmit usually, because there are problems such as bandwidth is little, decay is big, antijamming capability is not strong in cable itself, therefore causes the transmission of video signals distance shorter.And optical module is being born the conversion work of photosignal in fiber optic transmission system, vision signal is transmitted in optical fiber be achieved.The existing optical module that is used for transmission video signal, its transmission rate can reach 155Mbps, 622Mbps even 1Gbps.Owing on transmission rate, receive the ceiling restriction of the highest 1Gbps, therefore, can't reach the high-speed transfer requirement of high-definition video signal.
If can ten thousand million emission and reception modules of transmission rate up to 10Gbps be applied in the fiber optic transmission system of vision signal,, then can solve the high-speed transfer problem of high-definition video signal effectively as the transmission medium of high-definition video signal.
Summary of the invention
The utility model can't satisfy the day by day problem of the bandwidth demand of increase owing to rate-constrained in order to solve the optical module that uses cable or low rate when transmitting high-definition video signal; Propose a kind of 10,000,000,000 emission optical modules that are used for video transmission, can satisfy the high-speed transfer requirement of high-definition video signal.
For solving the problems of the technologies described above, the utility model adopts following technical scheme to be achieved:
A kind of 10,000,000,000 emission optical modules that are used for video transmission only are provided with the light signal transmission channel, comprise laser and laser driver; The data input pin of said laser driver connects the electrical interface on the optical module, through the external video signal source of electrical interface, and receiving video signals, and then be modulated into the current signal that is used for drive laser and be carried in described laser; The light signal that sends through laser transfers to external fiber via the optical interface on the optical module.
Preferably, the data input pin of said laser driver is a difference signal terminal, connects the difference that defines in the electrical interface terminal that transmits through holding wire, receives the vision signal of difference form.
Further, definition has launching failure signal transmission terminal in said electrical interface, connects described laser driver through holding wire, and the launching failure signal that laser driver is exported transfers out.
Further again, definition has emission enable signal transmission terminal in said electrical interface, connects described laser driver through holding wire, and transmission emission enable signal is to described laser driver.
In order to improve use density; Transmission requirement when reaching through an optical module realization two-path video signal; The utility model preferably is provided with two groups of lasers and laser driver in said optical module, form the two ways of optical signals transmission channel, the transmitting two paths vision signal.
Further again, in said optical module, also be provided with processor, connect described laser driver, the operating state of control laser driver.
A kind of preferred pin definitions mode as said electrical interface; Definition has two groups of difference transmit terminal, two-way launching failure signal transmission terminal and two-way emission enable signal transmission terminal, corresponding with the two-way laser driver respectively connection in said electrical interface.
External debug equipment detects debugging to said optical module for ease, and definition is useful on the I of external commissioning device in said electrical interface
2The C bus terminal is at the described processor of the inner connection of optical module, through I
2The C bus realizes the communication that is connected of commissioning device and optical module.
Further, in said electrical interface, also define the reference clock transmission terminal that is useful on external commissioning device, at the described processor of the inner connection of optical module.
Preferably, said electrical interface preferably adopts XFP interface encapsulating structure.
Compared with prior art; The advantage and the good effect of the utility model are: the 10000000000 emission optical modules of the utility model are applied in the transmission of video signals circuit; The bandwidth of original optical module more than 10 times can be provided; And it is little to decay, and antijamming capability is strong, therefore can satisfy remote, the high rate data transmission requirement of present high-definition video signal well.In addition,, can realize utilizing the designing requirement of transmitting two paths vision signal simultaneously of an optical module in optical module, improve the use density of optical module through the two ways of optical signals transmission channel is set simultaneously.
Description of drawings
Fig. 1 is a kind of application principle block diagram of 10,000,000,000 emission optical modules in signal transmission line that the utility model proposes;
Fig. 2 is the internal circuit schematic diagram of a kind of embodiment of 10,000,000,000 pairs of light emitting modules;
Fig. 3 is the pin definitions figure of a kind of embodiment of electrical interface on 10,000,000,000 pairs of light emitting modules.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done explanation in further detail.
Embodiment one; Referring to shown in Figure 1; Present embodiment is in order to satisfy remote, the high rate data transmission requirement of high-definition video signal; Use for reference present transmission rate and can propose a kind of 10,000,000,000 emission optical modules that are particularly useful for the high-definition video signal transmission up to the circuit design mode of 10,000,000,000 emission and reception modules of 10Gbps.In said 10,000,000,000 emission optical modules, only be provided with the light signal transmission channel; Need not to be provided with the light signal receive path; Specifically can adopt laser driver and laser to be formed by connecting; Be connected in the transmission of video signals circuit, the vision signal that video signal source sends carried out the signal of telecommunication after the conversion process of light signal, via Optical Fiber Transmission to the Optical Receivers that is positioned at video playback apparatus one side.After converting the light signal of 10,000,000,000 emission optical modules outputs into the signal of telecommunication through said Optical Receivers; Export video playback apparatus to; After via the inner signal processing unit of video playback apparatus the said signal of telecommunication being carried out decoding processing, through the display terminal displaying video programs.
In order to improve the use density of optical module; Practice thrift the deployment cost of video line; Present embodiment preferably keeps the function of its emitting side on the basis of the existing integrated module of optical transceiver, and the circuit of its receiver side is transformed, and the circuit of receiver side is had and the emitting side identical functions; Promptly form 10,000,000,000 pairs of light emitting modules, realize the optical module function of transmitting two paths vision signal simultaneously.
Physical circuit building mode for said 10,000,000,000 pairs of light emitting modules; Present embodiment proposes design as shown in Figure 2; Comprise two-way laser driver and two-way laser TOSA1, TOSA2; One road laser driver is used to drive No. one laser and accomplishes the conversion of vision signal from the signal of telecommunication to the light signal, forms the two ways of optical signals transmission channel thus, transmission in the time of with realization two-path video signal.
Its operation principle is: the signal of telecommunication that sends via video signal source transfers to the data input pin of laser driver through the electrical interface that is provided with on the optical module; Said data input pin can be designed to difference signal terminal; Connect the difference that defines in the electrical interface transmit terminal TD1+, TD1-(perhaps TD2+, TD2-), the difference video signal that send in the receiving video signals source through differential signal line.Laser driver is modulated into the current signal that is used for drive laser TOSA1 or TOSA2 with the signal of telecommunication that receives (vision signal); Be carried on laser TOSA1 or the TOSA2; Make laser TOSA1 or TOSA2 send light signal with amplitude modulation(PAM); Through the optical interface that is provided with on the optical module be coupled to the external optical fiber of said optical interface in, to realize the long-distance transmissions of light signal.
Be input to respectively in two laser drivers through emission enable signal transmission terminal TX_DIS1 and the TX_DIS2 that electrical interface defines for being used for controlling emission enable signal Tx_Dis1, the Tx_Dis2 that laser driver enables, enable operation with the control laser driver.
For the launching failure signal Fault1, the Fault2 that produce in the laser driver running, then can transfer to outside optical communication system equipment through the respective pin that defines in the electrical interface, detect and safeguard with convenient running status optical module.
In 10,000,000,000 pairs of light emitting modules of present embodiment, can also processor MCU be set further, as shown in Figure 2, connect described laser driver.Can monitor the running parameters such as temperature, supply power voltage of said optical module through MCU in real time, and then realize the effective control to said laser driver operating state guaranteeing the fault-free safe operation of optical module.
10,000,000,000 pairs of light emitting modules for present embodiment can adopt the plug-in interface to carry out package design, are preferably designed to the golden finger interface form, and its pin is arranged and PCB designs the encapsulation requirement that can meet XFP.Design 30 needle tubing pin in optical interface, 15 needle tubing pin 1-15 wherein are laid in the bottom surface Bottom of interface board, and 15 needle tubing pin 16-30 in addition are laid in the end face Top of interface board, and its pin definitions mode is referring to shown in Figure 3.Wherein, 28,29,4,5 pins are defined as first group of difference transmit terminal TD1-, TD1+, launching failure signal transmission terminal Fault1 and emission enable signal transmission terminal Tx_Dis1 respectively, are used for being connected communication with the first via laser driver of optical module.17,18,13,14 pins are defined as second group of difference transmit terminal TD2-, TD2+, launching failure signal transmission terminal Fault2 and emission enable signal transmission terminal Tx_Dis2 respectively, are used for being connected communication with the second road laser driver of optical module.10,11 pin definitions are I
2C bus terminal SCL, SDA; 24,25 pin definitions are reference clock transmission terminal RefCLK+, RefCLK-, connect the processor MCU in the optical module respectively, when said optical module is debugged; Be used to connect outside commissioning device, to realize control and the test of commissioning device to optical module.For other pins in the electrical interface, can be defined as power supply terminal VCC, VEE and earth terminal GND respectively, with power supply and the job requirement of satisfying optical module.
For the optical module that makes present embodiment meets XFP MSA standard; Except its profile and structure should meet the requirement of XFP MSA; The pin of its inner power supply and ground connection is connected the requirement that also should meet XFP MSA, and other details of not making specified otherwise also will meet the requirement of XFP MSA.
Certainly, said electrical interface also can adopt other interface encapsulating structures, for example SFP, SFF encapsulation etc., and present embodiment is not limited in above giving an example.
For the optical interface that is used for external optical fiber on the optical module, can be designed to the plug-type structure, such as the LC interface etc., connect optical module inner laser TOSA1, TOSA2 through optical fiber.Said laser TOSA1, TOSA2 can be that single-mode laser also can be the dual-mode laser device.The external fiber cable is inserted in the optical interface of optical module, just can realizes being of coupled connections of optical module and external fiber cable.
Certainly, in said optical module, also one road light signal transmission channel can only be set, promptly only dispose one road laser driver and laser, be used for one tunnel vision signal is realized opto-electronic conversion and remote Optical Fiber Transmission function.At this moment, the electrical interface that is used for transmission of electric signals can only carry out pin configuration to one road signal transmission channel, with the volume and the number of pin of dwindling electrical interface, realizes the miniaturization Design of optical module.
Adopting 10,000,000,000 of the utility model to launch optical modules can be so that the long-distance transmissions of high-definition video signal be able to good realization; Compare with fiber plant with existing cable machinery; Have significant advantages such as maintainability is good, the relative bandwidth price is low, be fit to be applied on the common public radio interface CPRI (Common public Radio Interface).
Certainly; Above-mentioned explanation is not to be the restriction to the utility model; The utility model also be not limited in above-mentioned for example, variation, remodeling, interpolation or replacement that those skilled in the art are made in the essential scope of the utility model also should belong to the protection range of the utility model.
Claims (10)
1. 10,000,000,000 emission optical modules that are used for video transmission is characterized in that: only be provided with the light signal transmission channel, comprise laser and laser driver; The data input pin of said laser driver connects the electrical interface on the optical module, through the external video signal source of electrical interface, and receiving video signals, and then be modulated into the current signal that is used for drive laser and be carried in described laser; The light signal that sends through laser transfers to external fiber via the optical interface on the optical module.
2. the 10000000000 emission optical modules that are used for video transmission according to claim 1; It is characterized in that: the data input pin of said laser driver is a difference signal terminal; Connect the difference that defines in the electrical interface terminal that transmits through holding wire, receive the vision signal of difference form.
3. the 10000000000 emission optical modules that are used for video transmission according to claim 1; It is characterized in that: definition has launching failure signal transmission terminal in said electrical interface; Connect described laser driver through holding wire, the launching failure signal that laser driver is exported transfers out.
4. the 10000000000 emission optical modules that are used for video transmission according to claim 1; It is characterized in that: definition has emission enable signal transmission terminal in said electrical interface; Connect described laser driver through holding wire, transmission emission enable signal is to described laser driver.
5. according to each described 10,000,000,000 emission optical modules that are used for video transmission in the claim 1 to 4, it is characterized in that: said laser and laser driver comprise two groups, form the two ways of optical signals transmission channel, the transmitting two paths vision signal.
6. the 10000000000 emission optical modules that are used for video transmission according to claim 5 is characterized in that: in said optical module, also be provided with processor, connect described laser driver, the operating state of control laser driver.
7. the 10000000000 emission optical modules that are used for video transmission according to claim 6; It is characterized in that: definition has two groups of difference transmit terminal, two-way launching failure signal transmission terminal and two-way emission enable signal transmission terminal, corresponding with the two-way laser driver respectively connection in said electrical interface.
8. the 10000000000 emission optical modules that are used for video transmission according to claim 6, it is characterized in that: definition is useful on the I of external commissioning device in said electrical interface
2The C bus terminal is at the described processor of the inner connection of optical module.
9. the 10000000000 emission optical modules that are used for video transmission according to claim 8, it is characterized in that: definition is useful on the reference clock transmission terminal of external commissioning device in said electrical interface, at the described processor of the inner connection of optical module.
10. the 10000000000 emission optical modules that are used for video transmission according to claim 9, it is characterized in that: said electrical interface adopts XFP interface encapsulating structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205212963U CN202353679U (en) | 2011-12-14 | 2011-12-14 | 10 Gigabit emission optical module for video transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205212963U CN202353679U (en) | 2011-12-14 | 2011-12-14 | 10 Gigabit emission optical module for video transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353679U true CN202353679U (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205212963U Expired - Fee Related CN202353679U (en) | 2011-12-14 | 2011-12-14 | 10 Gigabit emission optical module for video transmission |
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| CN (1) | CN202353679U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270203A (en) * | 2014-10-24 | 2015-01-07 | 成都新易盛通信技术股份有限公司 | SFF double-light-emitting module with DDM function and optical communication system |
-
2011
- 2011-12-14 CN CN2011205212963U patent/CN202353679U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270203A (en) * | 2014-10-24 | 2015-01-07 | 成都新易盛通信技术股份有限公司 | SFF double-light-emitting module with DDM function and optical communication system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20191214 |