CN105610509B - A kind of 160M optical transmission devices - Google Patents
A kind of 160M optical transmission devices Download PDFInfo
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- CN105610509B CN105610509B CN201510966712.3A CN201510966712A CN105610509B CN 105610509 B CN105610509 B CN 105610509B CN 201510966712 A CN201510966712 A CN 201510966712A CN 105610509 B CN105610509 B CN 105610509B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
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Abstract
A kind of 160M optical transmission devices, including optical transmitter and photoreceiver；Optical transmitter includes：Electric signal receiver, for receiving electric signal；First electric signal restorer, for recovering to electric signal；First signal bandwidth converter, for converting electrical signals to the serial electric signal of 160M；First optical signal transceiver, for being launched after converting electrical signals to optical signal；Photoreceiver includes：Second optical signal transceiver, for receiving 160M optical signals and being converted into electric signal；Second electric signal restorer, for recovering to electric signal；Secondary signal bandwidth converter, for the electric signal for the pre-set bandwidths for being converted to 160M electric signals；Electrical signal emitter, for launching electric signal；The present invention adds electric signal restorer in optical transmitter and photoreceiver, eliminates the noise in electric signal, improves the signal-to-noise ratio of signal, ensure that the correctness of the data of transmitting and reception so that the bit error rate of system reduces.
Description
Technical field
The present invention relates to a kind of optical transmission device, particularly a kind of 160M optical transmission devices, belongs to military equipment technology neck
Domain, more particularly to the equipment technical field such as remote measurement, radar, electronic countermeasure.
Background technology
Digital Optical Terminal is for the base band video of multi-channel analog, audio, data are carried out high-resolution digital, is formed high
Multi-path digital stream, is then multiplexed, is launched by optical sender by speed digital stream, then passes through the light-receiving of the other end
Machine is received, demultiplexed, and reverts to each railway digital signal, then by digitaltoanalogconversion revert to analog video, audio,
Data.
Compared with conventional digital optical transmitter and receiver, 160M optical transmission devices realize the individual transmission of two-way high speed signal at the same time；Light
Wavelength division multiplex device is integrated at fine port, to the optical branching launched and received, realizes information transmitted in both directions in simple optical fiber.If
Data recovery link has been counted, and has carried out intensity modulated during electro-optic conversion, high using threshold current, the high light source of slope, is realized
High Extinction Ratio, reduces error rate of system；The additional isolation cover of photoelectric conversion module, prevents electromagnetic interference；The equipment can be realized at the same time
The transmitted in both directions of 422 signals.
The content of the invention
The technology of the present invention solves the problems, such as：A kind of 160M optical transmission devices are overcome the deficiencies of the prior art and provide, are sent in light
Electric signal restorer is added in machine and photoreceiver, eliminates the noise in electric signal, improves the signal-to-noise ratio of signal, is ensured
Transmitting and the correctness of the data received so that the bit error rate of system reduces.
The object of the invention is achieved by following technical solution：A kind of 160M optical transmission devices, including：Optical transmitter and
Photoreceiver；
The optical transmitter mainly includes：
Electric signal receiver, for receiving electric signal；
First electric signal restorer, is recovered for docking received electric signal；
First signal bandwidth converter, for the electric signal after recovery to be converted to the serial electric signal of 160M；
First optical signal transceiver, for being launched after the serial electric signal of 160M is converted to optical signal；
Power module, is used for realization voltage conversion and is supplied to electric signal receiver, photovoltaic converter and optical signal transmitter
Electricity；
The photoreceiver mainly includes：
Second optical signal transceiver, for receiving 160M optical signals and being converted into electric signal；
Second electric signal restorer, for recovering to electric signal；
Secondary signal bandwidth converter, for the electric signal for the pre-set bandwidths for being converted to the 160M electric signals after recovery；
Electrical signal emitter, for launching electric signal；
Power module, is used for realization voltage conversion and is supplied to optical signal receiver, photovoltaic converter and electrical signal emitter
Electricity.
It is described to recover to realize using the CLC01 chips of National semiconductor companies.
The electric signal by after recovery is converted to the serial electric signal of 160M, is specially：First signal bandwidth turns
Parallel operation includes the first deserializer, the first FPGA and the first parallel-to-serial converter；
Serial electric signal after recovery is converted to parallel electric signal and exported to FPGA by first deserializer；
First FPGA is utilized is transmitted to the first parallel-to-serial converter by parallel electric signal；
Parallel optical signal is converted to serial 160M electric signals, the 160=N1* by first parallel-to-serial converter
M1, wherein N1 are the bar number of parallel electric signal, and M1 is the output clock frequency of FPGA.
The electric signal for the pre-set bandwidths that the 160M electric signals by after recovery are converted to, is specially：The secondary signal
Bandwidth converter includes the second deserializer, the 2nd FPGA and the second parallel-to-serial converter；
160M serial electric signals after recovery are converted to the parallel electric signal of pre-set bandwidths by second deserializer
Export to FPGA；
The parallel electric signal of pre-set bandwidths is transmitted to the second parallel-to-serial converter by the 2nd FPGA；
Parallel electric signal is converted to serial electric signal by second parallel-to-serial converter.
The photoreceiver further includes serial driver, and the serial electric signal for being exported to the second parallel-to-serial converter carries out
Exported after signal enhancing.
First optical signal transceiver and the second optical signal transceiver are worked at the same time in two ripples of 1310nm and 1550nm
Section, the first optical signal transceiver receive the optical signal of 1550nm wave bands using 1310nm wave bands transmitting optical signal；Second light
Signal transceiver receives the optical signal of 1310nm wave bands, while uses 1550nm wave bands transmitting optical signal, the first optical signal transceiver
Device and the second optical signal transceiver integrate wavelength division multiplex device at fiber port, to the optical branching launched and received, realize light
Information transmitted in both directions in simple optical fiber.
The optical transmitter further includes RS422 electric signal receivers and light source；
The RS422 electric signal receivers are used to receive externally input 422 electric signal；
The light source exports after 422 electric signals are converted to optical signal.
The photoreceiver further includes RS422 electrical signal emitters and optical detector；
The optical detector is used to externally input optical signal being converted to 422 electric signal outputs；
The RS422 electrical signal emitters are used to be launched 422 electric signals of optical detector output.
The threshold current of the light source is more than or equal to 350mA, and slope is more than or equal to 0.4W/A.
The present invention having the beneficial effect that compared with prior art：
The present invention uses electric signal recovery technology, ensure that the correctness of the data of transmitting and reception so that system
The bit error rate reduces.
Brief description of the drawings
Fig. 1 is the schematic diagram of the first embodiment of optical transmitter in the present invention；
Fig. 2 is the schematic diagram of second of embodiment of optical transmitter in the present invention；
Fig. 3 is the schematic diagram of the first embodiment of photoreceiver in the present invention；
Fig. 4 is the schematic diagram of second of embodiment of photoreceiver in the present invention.
Embodiment
In order to which technical problem, technical solution and beneficial effect solved by the invention is more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention will be described in further detail, it will be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
160M optical transmission devices in the present invention specifically include 160M optical transmitters and 160M photoreceivers.
The first embodiment of the optical transmitter is as shown in Figure 1, from fig. 1, it can be seen that the optical transmitter in the present invention is main
Including：
Electric signal receiver, for receiving electric signal；The input of the electric signal is to pass through coaxial line by outside source
Or twisted-pair feeder is realized.
First electric signal restorer, is recovered for docking received electric signal；It is described to recover primarily to removing
Noise in electric signal, improves the signal-to-noise ratio of electric signal, the data recoverer has the function of signal out-of-lock detection, compatible single-ended
With Differential Input and possess the characteristics of low-power consumption.In actual mechanical process, the first electric signal restorer uses National
The CLC01 chips of semiconductor companies are realized.
First signal bandwidth converter, for the electric signal after recovery to be converted to the serial electric signal of 160M；It is described
160M serial electric signals are in addition to meeting bandwidth requirement, it is also necessary to signal rate is adjusted, meets signal transmission rate
It is required that therefore, in order to preferably realize function above, FPGA should be included in the first signal bandwidth converter, utilizes clock
Signal is adjusted input/output signal speed.
Further, above-mentioned conversion process is realized by the way of following in the present invention：First signal bandwidth converter bag
Include the first deserializer, the first FPGA and the first parallel-to-serial converter；
Serial electric signal after recovery is converted to parallel electric signal and exported to FPGA by first deserializer；
First FPGA is utilized is transmitted to the first parallel-to-serial converter by parallel electric signal；
Parallel optical signal is converted to serial 160M electric signals, the 160=N1* by first parallel-to-serial converter
M1, wherein N1 are the bar number of parallel electric signal, and M1 is the output clock frequency of FPGA.
One specific embodiment of above conversion process is as follows：
When first deserializer receives LVDS serial data streams and is converted into parallel data and the separation of 10bit bit wides
Clock, and parallel data and separated clock are sent to the first FPGA, the first FPGA is according to separated clock come the letter to parallel data
Number speed is adjusted, and parallel data is exported to the first parallel-to-serial converter；
First parallel-to-serial converter is by the parallel LVCMOS/LVTTL data conversions of 10-bit bit wides into the serial of single high speed
Data flow.
First optical signal transceiver, for being launched after the serial electric signal of 160M is converted to optical signal；For reality
Existing function above, light source is integrated with the first optical signal transceiver, is changed the serial electric signal of 160M using the light source
For optical signal.
Power module, is used for realization voltage conversion and is supplied to electric signal receiver, photovoltaic converter and optical signal transmitter
Electricity；The power module is mainly used for external 220V AC voltage being converted into the available 12V DC voltage of optical transmitter.
The schematic diagram of second of embodiment of optical transmitter in the present invention is illustrated in figure 2, as can be seen from Figure 2, in the present invention
Optical transmitter further includes RS422 electric signal receivers and light source；
The RS422 electric signal receivers are used to receive externally input 422 electric signal；
The light source exports after 422 electric signals are converted to optical signal.
Further, optical transmitter can also include optical detector, and the optical detector can receive external optical signal simultaneously
422 electric signals are converted to, and 422 electric signals are exported by RS422 electric signal receivers.
The first embodiment schematic diagram of photoreceiver in the present invention is illustrated in figure 3, as can be seen from Figure 3, the light in the present invention
Receiver includes：
Second optical signal transceiver, for receiving 160M optical signals and being converted into electric signal；In order to achieve the above functions, exist
Optical detector is integrated with first optical signal transceiver, the serial optical signal of 160M is converted into telecommunications using the optical detector
Number.
Second electric signal restorer, for recovering to electric signal；It is described to recover primarily to removing in electric signal
Noise, improve the signal-to-noise ratio of electric signal, in actual mechanical process, the second electric signal restorer uses National
The CLC01 chips of semiconductor companies are realized.
Secondary signal bandwidth converter, for the electric signal for the pre-set bandwidths for being converted to the 160M electric signals after recovery；
The electric signal of the secondary signal bandwidth converter output is in addition to meeting pre-set bandwidths requirement, it is also necessary to exporting signal rate
It is adjusted, meets the requirement of signal transmission rate, therefore, in order to preferably realize function above, turns in secondary signal bandwidth
It should include FPGA in parallel operation, input/output signal speed and bandwidth are adjusted using clock signal.
Further, above-mentioned conversion process is realized by the way of following in the present invention：The secondary signal bandwidth conversion
Device includes the second deserializer, the 2nd FPGA and the second parallel-to-serial converter；
160M serial electric signals after recovery are converted to the parallel electric signal of pre-set bandwidths by second deserializer
Export to FPGA；
The parallel electric signal of pre-set bandwidths is transmitted to the second parallel-to-serial converter by the 2nd FPGA；
Parallel electric signal is converted to serial electric signal by second parallel-to-serial converter.
Electrical signal emitter, for launching serial electric signal；
Power module, is used for realization voltage conversion and is supplied to optical signal receiver, photovoltaic converter and electrical signal emitter
Electricity.The power module is mainly used for external 220V AC voltage being converted into the available 12V DC voltage of optical transmitter.
Further, in order to improve the signal-to-noise ratio of serial electric signal, serial driver is provided with photoreceiver, to
The serial electric signal of two parallel-to-serial converters output exports after carrying out signal enhancing.
The schematic diagram of second of embodiment of photoreceiver in the present invention is illustrated in figure 4, as can be seen from Figure 4, in the present invention
Photoreceiver further includes RS422 electrical signal emitters and optical detector；
The optical detector is used to externally input optical signal being converted to 422 electric signal outputs；
The RS422 electrical signal emitters are used to be launched 422 electric signals of optical detector output.
Further, photoreceiver can also include light source, and the light source can receive exterior 422 electric signals and be converted to
Optical signal.
Further, electromagnetic interference in order to prevent, facilitates the transmitted in both directions of RS422, outside optical transmitter and photoreceiver
Increase isolation cover, prevent electromagnetic interference.
In addition, in order to improve the multiplexing performance of optical transmitter and photoreceiver, the first optical signal transceiver and the second light letter
Number transceiver may be simultaneously operated in two wave bands of 1310nm and 1550nm, and the first optical signal transceiver is sent out using 1310nm wave bands
Optical signal is penetrated, while receives the optical signal of 1550nm wave bands；Second optical signal transceiver receives the optical signal of 1310nm wave bands, together
When using 1550nm wave bands transmitting optical signal, the first optical signal transceiver and the second optical signal transceiver integrate at fiber port
Wavelength division multiplex device, to the optical branching launched and received, realizes optical information transmitted in both directions in simple optical fiber.
Further, in order to improve the security of optical transmitter and photoreceiver, in optical transmitter and photoreceiver
Earthing rod is provided with, prevents from that the dangerous situations such as electric leakage occur during use, it is ensured that the safety of the person and equipment.
In addition, in order to realize High Extinction Ratio, error rate of system is reduced, it is involved in the present invention to convert electrical signals to light
The threshold current of the light source of signal is more than or equal to 350mA, and slope is more than or equal to 0.4W/A.
Compared with existing optical transmission device, the equipment in the present invention realizes the 160M bandwidth light being originally not present and sends
And light-receiving, in addition, the present invention has the advantages such as flexible for installation, small, light-weight, cost is low；Realize two-way 160M letters
Number stablize transmission；Add earthing rod, it is ensured that the safety of the person and equipment；All photoelectric conversion modules are all in optical fiber end
Wavelength division multiplex device is integrated at mouthful, to the optical branching launched and received, realizes information transmitted in both directions in simple optical fiber；Add
Data recovery link, reduces error rate of system；Electrooptic conversion module and the additional isolation cover of photoelectric conversion module, can prevent electromagnetism
Interference, realizes the transmitted in both directions of RS422.
Non-elaborated part of the present invention belongs to techniques well known.
The present invention is described in detail above by specific and preferred embodiment, but those skilled in the art should be bright
In vain, the invention is not limited in embodiment described above, within the spirit and principles of the invention, any modification for being made,
Equivalent substitution etc., should all be included in the protection scope of the present invention.
Claims (8)
- A kind of 1. 160M optical transmission devices, it is characterised in that：Including：Optical transmitter and photoreceiver；The optical transmitter mainly includes：Electric signal receiver, for receiving electric signal；First electric signal restorer, is recovered for docking received electric signal；First signal bandwidth converter, for the electric signal after recovery to be converted to the serial electric signal of 160M；First optical signal transceiver, for being launched after the serial electric signal of 160M is converted to optical signal；First power module, is used for realization voltage conversion and is supplied to electric signal receiver, photovoltaic converter and optical signal transmitter Electricity；The photoreceiver mainly includes：Second optical signal transceiver, for receiving 160M optical signals and being converted into electric signal；Second electric signal restorer, for recovering to electric signal；Secondary signal bandwidth converter, for the electric signal for the pre-set bandwidths for being converted to the 160M electric signals after recovery；Electrical signal emitter, for launching electric signal；Second source module, is used for realization voltage conversion and is supplied to optical signal receiver, photovoltaic converter and electrical signal emitter Electricity；The electric signal by after recovery is converted to the serial electric signal of 160M, is specially：The first signal bandwidth converter Including the first deserializer, the first FPGA and the first parallel-to-serial converter；Serial electric signal after recovery is converted to parallel electric signal and exported to FPGA by first deserializer；First FPGA is utilized is transmitted to the first parallel-to-serial converter by parallel electric signal；Parallel optical signal is converted to serial 160M electric signals by first parallel-to-serial converter, the 160=N1*M1, its Middle N1 is the bar number of parallel electric signal, and M1 is the output clock frequency of FPGA.
- A kind of 2. 160M optical transmission devices according to claim 1, it is characterised in that：The recovery uses National The CLC01 chips of semiconductor companies are realized.
- A kind of 3. 160M optical transmission devices according to claim 1, it is characterised in that：The 160M telecommunications by after recovery The electric signal of number pre-set bandwidths be converted to, is specially：The secondary signal bandwidth converter includes the second deserializer, the Two FPGA and the second parallel-to-serial converter；The parallel electric signal that 160M serial electric signals after recovery are converted to pre-set bandwidths by second deserializer exports To FPGA；The parallel electric signal of pre-set bandwidths is transmitted to the second parallel-to-serial converter by the 2nd FPGA；Parallel electric signal is converted to serial electric signal by second parallel-to-serial converter.
- A kind of 4. 160M optical transmission devices according to claim 3, it is characterised in that：The photoreceiver further includes serially Driver, the serial electric signal for being exported to the second parallel-to-serial converter export after carrying out signal enhancing.
- A kind of 5. 160M optical transmission devices according to claim 1, it is characterised in that：First optical signal transceiver and Second optical signal transceiver is worked at the same time uses 1310nm ripples in two wave bands of 1310nm and 1550nm, the first optical signal transceiver Section transmitting optical signal, while receive the optical signal of 1550nm wave bands；Second optical signal transceiver receives the light letter of 1310nm wave bands Number, while using 1550nm wave bands transmitting optical signal, the first optical signal transceiver and the second optical signal transceiver are in fiber port The integrated wavelength division multiplex device in place, to the optical branching launched and received, realizes optical information transmitted in both directions in simple optical fiber.
- A kind of 6. 160M optical transmission devices according to claim 1, it is characterised in that：The optical transmitter further includes RS422 electric signal receivers and light source；The RS422 electric signal receivers are used to receive externally input 422 electric signal；The light source exports after 422 electric signals are converted to optical signal.
- A kind of 7. 160M optical transmission devices according to claim 1, it is characterised in that：The photoreceiver further includes RS422 electrical signal emitters and optical detector；The optical detector is used to externally input optical signal being converted to 422 electric signal outputs；The RS422 electrical signal emitters are used to be launched 422 electric signals of optical detector output.
- A kind of 8. 160M optical transmission devices according to claim 6, it is characterised in that：The threshold current of the light source is more than Equal to 350mA, slope is more than or equal to 0.4W/A.
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| CN201510966712.3A CN105610509B (en) | 2015-12-21 | 2015-12-21 | A kind of 160M optical transmission devices |
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| CN105610509A CN105610509A (en) | 2016-05-25 |
| CN105610509B true CN105610509B (en) | 2018-05-01 |
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| CN113672550A (en) * | 2020-05-13 | 2021-11-19 | 华为技术有限公司 | Computing system, server and signal transmission method |
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| CN201742472U (en) * | 2010-06-30 | 2011-02-09 | 格科微电子（上海）有限公司 | Image sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7832944B2 (en) * | 2007-11-08 | 2010-11-16 | Finisar Corporation | Optoelectronic subassembly with integral thermoelectric cooler driver |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286783A (en) * | 2008-05-21 | 2008-10-15 | 京信通信系统（中国）有限公司 | Digital RF remote system with movable working passband and method to move the working passband |
| CN201742472U (en) * | 2010-06-30 | 2011-02-09 | 格科微电子（上海）有限公司 | Image sensor |
| CN102231651A (en) * | 2011-06-14 | 2011-11-02 | 苏州旭创科技有限公司 | Low-power consumption 10G 40km SFP+ optical module of temperature-control type |
| CN104852769A (en) * | 2015-04-08 | 2015-08-19 | 厦门优迅高速芯片有限公司 | Phase-splitting circuit applied to TIA with RSSI on front end of optical receiver |
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