CN202353686U - 10-gigabit receiving optical module for video transmission - Google Patents
10-gigabit receiving optical module for video transmission Download PDFInfo
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- CN202353686U CN202353686U CN2011205213063U CN201120521306U CN202353686U CN 202353686 U CN202353686 U CN 202353686U CN 2011205213063 U CN2011205213063 U CN 2011205213063U CN 201120521306 U CN201120521306 U CN 201120521306U CN 202353686 U CN202353686 U CN 202353686U
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- optical module
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- optical
- limiting amplifier
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Abstract
The utility model discloses a 10-gigabit receiving optical module for video transmission, which is only provided with optical signal receiving channels and comprises a photoelectric detector and an amplitude limiting amplifier. The photoelectric detector is connected with an optical interface of an optical module by an optical fiber and is used for receiving video optical signals, converting the video optical signals into video electric signals, outputting the video electric signals to the amplitude limiting amplifier to carry out amplification processing of the signals and output the processed video electric signals by an electric interface on the optical module. When the 10-gigabit receiving optical module disclosed by the utility model is applied to a video signal transmission line, the bandwidth of over 10 times of that of an original optical module can be provided, the attenuation is low and the anti-interference capacity is strong, and thus, the requirement of the current high definition video signal on remote and high-speed transmission can be well met. Moreover, by simultaneously arranging two paths of optical signal receiving channels in the optical module, the design requirement for simultaneously receiving two paths of video signals by utilizing one optical module can be met and the using 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 of common public radio interface that is applied to and receives optical module.
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 rate data transmission 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 reception optical modules that are used for video transmission, can satisfy the high rate data transmission 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 reception optical modules that are used for video transmission only are provided with the light signal receive path, comprise photodetector and limiting amplifier; Said photodetector connects the optical interface on the optical module through optical fiber, and the receiver, video light signal also converts video electrical signal to, export the processing and amplifying that limiting amplifier carries out signal to after, export through the electrical interface on the optical module.
Preferably, said limiting amplifier converts the video electrical signal that receives to differential signal, connects the differential received signal terminal that defines in the electrical interface through differential signal line, the vision signal of output difference form.
Further, definition has Received Loss Of Signal alarm terminal in said electrical interface, connects described limiting amplifier through holding wire, outwards exports the Received Loss Of Signal alarm signal.
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 photodetectors and limiting amplifier in said optical module, form the two ways of optical signals receive path, the transmitting two paths vision signal.
Further again, in said optical module, also be provided with processor, connect described photodetector and limiting amplifier, the operating state of control photodetector and limiting amplifier.
As a kind of preferred pin definitions mode of said electrical interface, definition has two groups of differential received signal terminals, two-way Received Loss Of Signal alarm terminal, corresponding with the two-way limiting amplifier 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, 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.
Preferably, said electrical interface preferably adopts XFP interface encapsulating structure, specifically can be designed to the golden finger interface form of plug-in.
Compared with prior art; The advantage and the good effect of the utility model are: 10,000,000,000 of the utility model is received optical module be 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 an optical module to receive the designing requirement of two-path video signal simultaneously, improve the use density of optical module through the two ways of optical signals receive path is set in optical module simultaneously.
After the detailed description in conjunction with advantages the utility model execution mode, other characteristics of the utility model and advantage will become clearer.
Description of drawings
Fig. 1 is a kind of application principle block diagram of 10,000,000,000 reception optical modules in signal transmission line that the utility model proposes;
Fig. 2 is the internal circuit schematic diagram that Wan Zhaoshuan receives a kind of embodiment of optical module;
Fig. 3 is the pin definitions figure that Wan Zhaoshuan receives a kind of embodiment of electrical interface on the optical module.
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; Using for reference present transmission rate can be up to the circuit design mode of 10,000,000,000 emission and reception modules of 10Gbps, has proposed a kind ofly to be particularly useful for 10,000,000,000 of high-definition video signal transmission and to receive optical modules.In said 10,000,000,000 reception optical modules, only be provided with the light signal receive path; Need not to be provided with the light signal transmission channel; Specifically can adopt photodetector and limiting amplifier to be formed by connecting, be connected in the transmission of video signals circuit, be used to realize the conversion of vision signal from the light signal to the signal of telecommunication.
In video signal transmission system shown in Figure 1; Vision signal through video signal source sends is carried out the signal of telecommunication after the conversion process of light signal via 10,000,000,000 emission optical modules; Be transmitted through the fiber to 10,000,000,000 of far-end and receive optical module; Receive optical module via described 10,000,000,000 and convert the video light signal to the signal of telecommunication, export video playback apparatus to.After the video electrical signal that said video playback apparatus utilizes its inner signal processing unit that 10,000,000,000 reception optical module conversions are exported carries 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 receiver side on the basis of the existing integrated module of optical transceiver, and the circuit of its emitting side is transformed, and the circuit of emitting side is had and the receiver side identical functions; Promptly form 10,000,000,000 pairs and receive optical module, realize the optical module function of transmitting two paths vision signal simultaneously.
For said 10,000,000,000 pairs of physical circuit building modes of receiving optical module; Present embodiment proposes design as shown in Figure 2; Comprise two-way photodetector PIN1, PIN2 and two-way limiting amplifier, No. one photodetector connects one road limiting amplifier, accomplishes conversion and the processing and amplifying of vision signal from the light signal to the signal of telecommunication; Form the two ways of optical signals receive path thus, receive in the time of with realization two-path video signal.
Its operation principle is: Wan Zhaoshuan receives optical module and utilizes the two-way optical interface that is provided with on its housing to receive the light signal of coming through the two-way Optical Fiber Transmission; Corresponding respectively two independent photodetector PIN1, the PIN2 of getting into; Carry out the conversion process of light signal to the signal of telecommunication; And then after exporting the amplitude limit processing and amplifying that limiting amplifier carries out signal respectively to, form two paths of differential signals, transfer to differential received signal terminal RD1+, RD1-and RD2+, the RD2-that defines in the two-way electrical interface through the differential signal line correspondence; Export difference video signal to outside video playback apparatus, realize the broadcast of video frequency program on display terminal.
Receive Received Loss Of Signal alarm signal RX_LOS1, the RX_LOS2 that optical module produces for said 10,000,000,000 pairs in 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 to optical module.
Receive in the optical module and can also processor MCU be set further at the Wan Zhaoshuan of present embodiment, as shown in Figure 2, connect described photodetector PIN1, PIN2 and limiting amplifier.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 photodetector PIN1, PIN2 and limiting amplifier operating state guaranteeing the fault-free safe operation of optical module.
Wan Zhaoshuan receipts optical module for present embodiment can adopt the plug-in interface to carry out package design, is 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, 17,18,14 pins are defined as first group of differential received signal terminal RD1-, RD1+ and Received Loss Of Signal alarm terminal RX_LOS1 respectively, are used for being connected communication with the first via limiting amplifier of optical module.28,29,5 pins are defined as second group of differential received signal terminal RD2-, RD2+ and Received Loss Of Signal alarm terminal RX_LOS2 respectively, are used for being connected communication with the second road limiting amplifier 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 10,000,000,000 pairs of processor MCU of receiving in the optical module respectively; When said optical module is debugged, be used to connect outside commissioning device, to realize the 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.
Receive the optical interface that is used for external optical fiber on the optical module for Wan Zhaoshuan, can be designed to the plug-type structure,, connect optical module inner photodetector PIN1, PIN2 through optical fiber such as the LC interface etc.Said photodetector PIN1, PIN2 can be that the single-mode optics electric explorer also can be the bimodulus photodetector.The external fiber cable is inserted in the said optical interface of optical module, just can realizes being of coupled connections of optical module and external fiber cable.
Certainly, in said 10,000,000,000 pairs of receipts optical modules, also one road light signal receive path can only be set, promptly only dispose No. one photodetector and limiting amplifier, be used for one tunnel vision signal is realized that light signal is to the electrical signal conversion processing.At this moment, the electrical interface that is used for transmission of electric signals can only carry out pin configuration to one road signal receive path, with the volume and the number of pin of dwindling electrical interface, realizes the miniaturization Design of optical module.
Adopt 10,000,000,000 of the utility model to receive reception and the processing requirements that optical module can be realized high-definition video signal; 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 reception optical modules that are used for video transmission is characterized in that: only be provided with the light signal receive path, comprise photodetector and limiting amplifier; Said photodetector connects the optical interface on the optical module through optical fiber, and the receiver, video light signal also converts video electrical signal to, export the processing and amplifying that limiting amplifier carries out signal to after, export through the electrical interface on the optical module.
2. the 10000000000 reception optical modules that are used for video transmission according to claim 1; It is characterized in that: said limiting amplifier converts the video electrical signal that receives to differential signal; Connect the differential received signal terminal that defines in the electrical interface through differential signal line, the vision signal of output difference form.
3. the 10000000000 reception optical modules that are used for video transmission according to claim 1; It is characterized in that: definition has Received Loss Of Signal alarm terminal in said electrical interface; Connect described limiting amplifier through holding wire, outwards export the Received Loss Of Signal alarm signal.
4. according to each described 10,000,000,000 reception optical modules that are used for video transmission in the claim 1 to 3, it is characterized in that: said photodetector and limiting amplifier comprise two groups, form the two ways of optical signals receive path, the transmitting two paths vision signal.
5. the 10000000000 reception optical modules that are used for video transmission according to claim 4; It is characterized in that: in said optical module, also be provided with processor; Connect described photodetector and limiting amplifier, the operating state of control photodetector and limiting amplifier.
6. the 10000000000 reception optical modules that are used for video transmission according to claim 5 is characterized in that: definition has two groups of differential received signal terminals, two-way Received Loss Of Signal alarm terminal, corresponding with the two-way limiting amplifier respectively connection in said electrical interface.
7. the 10000000000 reception optical modules that are used for video transmission according to claim 5, 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.
8. the 10000000000 reception optical modules that are used for video transmission according to claim 7, 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.
9. the 10000000000 reception optical modules that are used for video transmission according to claim 8, it is characterized in that: said electrical interface adopts XFP interface encapsulating structure.
10. the 10000000000 reception optical modules that are used for video transmission according to claim 9, it is characterized in that: said electrical interface is designed to the golden finger interface form of plug-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205213063U CN202353686U (en) | 2011-12-14 | 2011-12-14 | 10-gigabit receiving optical module for video transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205213063U CN202353686U (en) | 2011-12-14 | 2011-12-14 | 10-gigabit receiving optical module for video transmission |
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| Publication Number | Publication Date |
|---|---|
| CN202353686U true CN202353686U (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205213063U Expired - Fee Related CN202353686U (en) | 2011-12-14 | 2011-12-14 | 10-gigabit receiving optical module for video transmission |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107786278A (en) * | 2016-08-26 | 2018-03-09 | 成都芯瑞科技股份有限公司 | SFP low-power consumption is double to receive optical module |
| CN109560871A (en) * | 2018-12-05 | 2019-04-02 | 深圳市埃尔法光电科技有限公司 | A kind of optical-electric module and photoelectricity line for image transmitting interface V-By-One design |
| CN111193547A (en) * | 2020-03-05 | 2020-05-22 | 青岛海信宽带多媒体技术有限公司 | Optical module |
-
2011
- 2011-12-14 CN CN2011205213063U patent/CN202353686U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107786278A (en) * | 2016-08-26 | 2018-03-09 | 成都芯瑞科技股份有限公司 | SFP low-power consumption is double to receive optical module |
| CN109560871A (en) * | 2018-12-05 | 2019-04-02 | 深圳市埃尔法光电科技有限公司 | A kind of optical-electric module and photoelectricity line for image transmitting interface V-By-One design |
| CN111193547A (en) * | 2020-03-05 | 2020-05-22 | 青岛海信宽带多媒体技术有限公司 | Optical module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20191214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |