CN202918300U - Miniaturized multi-path two-way signal optical fiber transmission component - Google Patents
Miniaturized multi-path two-way signal optical fiber transmission component Download PDFInfo
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- CN202918300U CN202918300U CN 201220526714 CN201220526714U CN202918300U CN 202918300 U CN202918300 U CN 202918300U CN 201220526714 CN201220526714 CN 201220526714 CN 201220526714 U CN201220526714 U CN 201220526714U CN 202918300 U CN202918300 U CN 202918300U
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Abstract
The utility model discloses a miniaturized multi-path two-way signal optical fiber transmission component. The miniaturized multi-path two-way signal optical fiber transmission component comprises a field end and a control end which have multi-chip stack encapsulation structures; the field end is connected with the control end through a transmission optical fiber; the field end can input a plurality of voltage signals and a plurality of data signals, convert the plurality of voltage signals and the plurality of data signals into a positive emitter coupled logic (PECL) signal and transmit the PECL signal to the control end through an optical module and the transmission optical cable; the control end reduces the received PECL signal into a plurality of voltage signals and a plurality of data signals and outputs the plurality of voltage signals and the plurality of data signals; the control end also can input a plurality of transistor-transistor logic (TTL) pulse signals and a plurality of data signals, convert the plurality of TTL pulse signals and the plurality of data signals into the PECL signal, and transmit the PECL signal to the field end through the optical module and the transmission optical cable; the field end reduces the received PECL signal into a plurality of data signals and a plurality of TTL pulse signals and outputs the plurality of data signals and the plurality of TTL pulse signals, so that a plurality of two-way signals are transmitted by an optical fiber, and the anti-jamming capacity is high; and therefore, the miniaturized multi-path two-way signal optical fiber transmission component is particularly suitable for the data transmission of a modern airborne and ship-borne radar system.
Description
Technical field
The utility model relates to a kind of fibre optic transmission equipment of radar system, relates in particular to a kind of microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly.
Background technology
Development along with Radar Technology, when improving constantly performance, radar is just towards the future development of miniaturization, the data volume of the required processing of radar system and transmission is increasing on the other hand, the signal way is also more and more, analog signal, data-signal, pulse signal are arranged, and these signal kinds are different, transmission rate is different, and radar system is also different to the requirement of these signals.The increase of signal way becomes heavy so that the volume of radar system becomes large weight, this be airborne, shipborne radar institute is unacceptable, communicate by letter with traditional cable and compare optical fiber communication and have the remarkable advantages such as transmission rate is fast, volume is little, lightweight, antijamming capability is strong.Optical fiber communication has driven its application at military industry field in the application of commercial market with development, the signal transmission form of radar system is also changed to light by electricity gradually, and the multiple signals transmission light module that the optical module of existing signal transmission is broadly divided into the integration of compact optical module and develops according to actual needs.The integration of compact optical module is such as present commercially available optical module SFP, SFP+, XFP, SFF etc., and concrete size is as follows:
SFP：57.2mm×13.7mm×12.7mm
SFP+：56.5mm×14.0mm×12.1mm
XFP：77.8mm×22.2mm×16.1mm
SFF：48.5mm×13.2mm×10.8mm
Not only volume is large but also function singleness for the optical module of above introduction, can't realize receiving simultaneously and sending multichannel data, take SFP optical module commonly used as example, although this optical module has the function of sending and receiving, but can only sending and receiving one circuit-switched data, if want two-way transmission 8 circuit-switched data, then need the parallel use of 16 SFP optical modules and 16 Transmission Fibers of needs, its volume is that radar system institute is insupportable.The existing commercially available optical module that can transmit simultaneously multichannel data, its volume minimum is 175mm * 150mm * 75mm as an example of 8 circuit-switched data optical transceivers example, the volume of the type product also can't satisfy the requirement of radar system miniaturization, and the type product can't realize utilizing an optical fiber to realize the transmitted in both directions of 8 circuit-switched data, the data-signal type that can transmit of this radar system type products is common RS232, RS485, low speed switch amount signal in addition, can't satisfy the required high speed of radar system, demand that signal kinds is complicated and changeable.This shows, for satisfying the requirement of radar system two-forty, multi-channel data transmission, the development demand of small size micro optical transceiver module is extremely urgent.
Small optical transceiving modular is that emission, receiving unit are encapsulated in the Novel Optoelectronic Device-optical module in the same housing together.Optical module is divided into single-mode optical module and multi-mode optical module, then comprises optical secondary module (Optical Subassembly on the integral product framework; TOSA, ROSA), electronics secondary module (Electrical Subassembly; ESA) and the mechanical hull three parts.Its circuit board all adopts straight plate form, laser and detector are the optical secondary module with ceramic insertion core, what electrical interface adopted is the golden finger mode, controller, limiting amplifier, laser driver etc. are common IC integrated chip, and this general light module chip disperses, spacing is larger, adopt 2 optical modules to realize the sending and receiving of light signal, whole optical module volume is large, function singleness.
And photovoltaic such as commercially available video optical multiplexer, audio frequency optical transceiver and the data optical receiver that can transmit multichannel data are that volume or the kind of signal transmission obviously all can't satisfy radar system to the requirement of volume and signal kinds, no longer narrate at this.According to the specific (special) requirements of radar system, developed some and can transmit the photovoltaic of multichannel data.What the optical module of existing simultaneously transportation simulator voltage signal and pulse signal adopted is voltage signal and pulse signal difference individual transmission; be that voltage signal transmits by one road optical channel such as 4 road voltage signals and pulse signal and other data-signals transmit by other optical channel; a few circuit-switched data signals are arranged just with several roads optical channel, several roads pulse signal is arranged with regard to several roads optical channel equally; its theory diagram as shown in Figure 1; this multichannel data Optical Fiber Transmission assembly transmitting terminal sends 5 road signals altogether, is respectively 4 road analog voltage signals and 1 tunnel error protection signal.4 road analog voltage signals are transformed to data-signal by parameter acquisition, are transformed to 1 circuit-switched data signal through the signal processing and transmit through an optical fiber, and the error protection signal is that data-signal is realized transmission by independent optical channel after the input circuit shaping is amplified; Receiving terminal sends 3 road signals altogether, is respectively 2 road pulse signals and 1 tunnel control signal.2 road pulse signals are realized transmission by 2 optical-fibre channels, and 1 tunnel control signal realizes transmission by other one road optical channel.As shown in fig. 1, although transmitting terminal and receiving terminal can both send data and receive data, but sending and receiving can not be realized by an optical fiber, 2 light emission modules of transmitting terminal, 3 Optical Receivers, and corresponding receiving terminal has then been used 2 Optical Receivers, 3 light emission modules.Transmitting terminal and receiving terminal need be realized transmitted in both directions with 5 optical fiber.
The product design corresponding with Fig. 1 as shown in Figure 2, the high size of length and width of this multichannel data Optical Fiber Transmission assembly is respectively: 69.5mm * 59.6mm * 14.4mm.This multichannel data Optical Fiber Transmission assembly can be realized the transmission of 4 road analog voltage signals, 2 road pulse signals, 2 circuit-switched data signals, in isolating, the detection of radar travelling wave tube high pressure and high pressure obtained application, but this assembly as previously described, can't realize that multichannel data passes through the transmitted in both directions of an optical fiber, and this assembly volume can't satisfy more greatly the needs of the desired small-volume and multifunctional of radar system development.
The utility model content
The purpose of this utility model is to provide a kind of microminiaturization and can be with the microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly of an optical multiplex transmission two-way signaling.
For achieving the above object, the utility model provides a kind of microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly, comprise the scene end and the control end that adopt multi-chip stack packaging structure, described on-the-spot end comprises a FPGA, analog to digital converter, the first level translator, the first optical module and an I/O signaling interface terminal that adopts BGA to encapsulate, described control end comprises the 2nd FPGA, digital to analog converter, the second electrical level transducer, the second optical module and the 2nd I/O signaling interface terminal that adopts BGA to encapsulate, link to each other by a Transmission Fibers between described the second optical module and described the first optical module, wherein
A described I/O signaling interface terminal is used for providing the plurality of voltages signal that inputs to described on-the-spot end, the input interface of multichannel data signal, reaches the multichannel data signal of described on-the-spot end output, the output interface of multichannel TTL pulse signal;
Described the 2nd I/O signaling interface terminal is used for providing the plurality of voltages signal of described control end output, the output interface of multichannel data signal, and inputs to the multichannel data signal of described control end, the input interface of multichannel TTL pulse signal;
Described analog to digital converter is used for receiving the plurality of voltages signal by a described I/O signaling interface terminal, and it is carried out being sent to a described FPGA after the analog-to-digital conversion;
Described digital to analog converter is used for receiving the plurality of voltages signal that described the 2nd FPGA exports, and it is carried out exporting by described the 2nd I/O signaling interface terminal after the digital-to-analogue conversion;
Described the first level translator is used for receiving multichannel data signal and the multichannel TTL pulse signal of described FPGA output, and it is carried out level match change rear by described I/O signaling interface terminal output;
Described second electrical level transducer is used for receiving the multichannel data signal of described the 2nd FPGA output, and it is carried out level match change rear by described the 2nd I/O signaling interface terminal output;
A described FPGA is used for when the voltage signal of receiving multi-path digital and multichannel data signal it being transformed to one road PECL signal and is sent to described the first optical module; When receive that described the first optical module sends include the PECL signal of multichannel data signal and multichannel TTL pulse signal the time, it is transformed into corresponding multichannel data signal and multichannel TTL output of pulse signal;
Described the 2nd FPGA is used for when receiving multichannel data signal and multichannel TTL pulse signal it being transformed to one road PECL signal and is sent to described the second optical module; When receiving the PECL signal of the voltage signal that includes multi-path digital that described the second optical module sends and multichannel data signal, it is transformed into voltage signal and the output of multichannel data signal of corresponding multi-path digital;
Described the first optical module is used for being converted into corresponding light signal and is sent to described the second optical module by described Transmission Fibers when receiving the PECL signal that a described FPGA sends; When receiving the light signal that described the second optical module sends by described Transmission Fibers, be converted into corresponding PECL signal output;
Described the second optical module is used for being converted into corresponding light signal and is sent to described the first optical module by described Transmission Fibers when receiving the PECL signal that described the 2nd FPGA sends; When receiving the light signal that described the first optical module sends by described Transmission Fibers, be converted into corresponding PECL signal output.
Microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly of the present utility model adopts scene end and the control end of multi-chip stack packaging structure, the one I/O signaling interface terminal of on-the-spot end and the 2nd I/O signaling interface terminal of control end all adopt the BGA encapsulation, thereby the volume of whole microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly is significantly dwindled, its volume size is about 1/4～1/3 of existing similar products, link to each other by a Transmission Fibers between the second optical module of microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly of the present utility model and the first optical module in addition, on-the-spot end can be realized the input of plurality of voltages signal and multichannel data signal and convert thereof into the PECL signal being sent to control end by optical module and transmission cable, and control end is exported after then the PECL signal of receiving being reduced into plurality of voltages signal and multichannel data signal; Control end also can be realized the input of multichannel TTL pulse signal and multichannel data signal, and convert thereof into the PECL signal and be sent to on-the-spot end by optical module and transmission cable, after then being reduced into multichannel data signal and multichannel TTL pulse signal with the PECL signal of receiving, exports at on-the-spot end, thereby realized with an optical multiplex transmission two-way signaling, and its antijamming capability is strong, thereby is very suitable for the data transmission applications of modern Airborne and Shipboard Radar System.
Description of drawings
Fig. 1 is the circuit structure block diagram of multichannel two-way signaling Optical Fiber Transmission assembly of the prior art;
The shape assumption diagram of Fig. 2 multichannel two-way signaling of the prior art Optical Fiber Transmission assembly;
Fig. 3 is the hardware structure diagram of microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly of the present utility model;
Fig. 4 is the software architecture diagram of microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly of the present utility model;
Fig. 5 is the structured flowchart of optical module radiating circuit in the microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly of the present utility model;
Fig. 6 is the structured flowchart of the optical module receiving circuit of microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail:
With reference to shown in Figure 3, the microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly of the present embodiment comprises scene end and the control end that adopts multi-chip stack packaging structure.On-the-spot end comprises an I/O signaling interface terminal of a FPGA, analog to digital converter, the first level translator, the first optical module and employing BGA encapsulation etc.Control end comprises the 2nd I/O signaling interface terminal of the 2nd FPGA, digital to analog converter, second electrical level transducer, the second optical module and employing BGA encapsulation etc., links to each other by a Transmission Fibers between the second optical module and the first optical module, wherein:
In the on-the-spot end, an I/O signaling interface terminal inputs to on-the-spot 2 road voltage signals of holding, the input interface of 6 circuit-switched data signals for providing, and on-the-spot 6 circuit-switched data signals of output, the output interface of 2 road TTL pulse signals held.Analog to digital converter is used for receiving 2 road voltage signals by an I/O signaling interface terminal, and it is carried out being sent to a FPGA after the analog-to-digital conversion.The first level translator is used for receiving 6 circuit-switched data signals and 2 road TTL pulse signals of FPGA output, and it is rear by I/O signaling interface terminal output that it is carried out the level match conversion, because the working power of FPGA peripheral port is 3.3V, the compatible 5V level of its input port, end becomes 3.3V TTL pulse signal after then being processed by FPGA at the scene, and the recycling level transferring chip is transformed to 5V TTL output of pulse signal.The one FPGA is used for when the voltage signal of receiving 2 railway digitals and 6 circuit-switched data signal it being transformed to one road PECL signal and is sent to the first optical module; When receive that the first optical module sends include the PECL signal of 6 circuit-switched data signals and 2 road TTL pulse signals time, it is transformed into corresponding 6 circuit-switched data signals and 2 road TTL output of pulse signals.The first optical module is used for being converted into corresponding light signal and is sent to the second optical module by Transmission Fibers when receiving the PECL signal that a FPGA sends; When receiving the light signal that the second optical module sends by Transmission Fibers, be converted into corresponding PECL signal output.
In the control end, the 2nd I/O signaling interface terminal is used for providing 2 road voltage signals of control end output, the output interface of 6 circuit-switched data signals, and inputs to 6 circuit-switched data signals of control end, the input interface of 2 road TTL pulse signals.Digital to analog converter is used for receiving 2 road voltage signals of the 2nd FPGA output, and it is carried out exporting by the 2nd I/O signaling interface terminal after the digital-to-analogue conversion.The second electrical level transducer is used for receiving 6 circuit-switched data signals of the 2nd FPGA output, and it is rear by the output of the 2nd I/O signaling interface terminal that it is carried out the level match conversion, because the working power of FPGA peripheral port is 3.3V, the compatible 5V level of its input port, 2 road 5V TTL pulse signals can directly enter FPGA at control end and process, and transfer to on-the-spot end by Transmission Fibers.The 2nd FPGA is used for when receiving 6 circuit-switched data signals and 2 road TTL pulse signal it being transformed to one road PECL signal and is sent to the second optical module; When receiving the PECL signal of the voltage signal that includes 2 railway digitals that the second optical module sends and 6 circuit-switched data signals, it is transformed into voltage signal and the output of 6 circuit-switched data signals of 2 corresponding railway digitals.The second optical module is used for being converted into corresponding light signal and is sent to the first optical module by Transmission Fibers when receiving the PECL signal that the 2nd FPGA sends; When receiving the light signal that the first optical module sends by Transmission Fibers, be converted into corresponding PECL signal output.
Wherein, a FPGA and the 2nd FPGA are equipped with stringization/deserializer hardware configuration, and this stringization/deserializer connects Transmission Fibers by the optical module Interface Terminal that adopts the BGA encapsulation.This string/deserializer is used for when receiving the signal of FPGA output its string changed into one road PECL signal and by corresponding optical module Interface Terminal output, when receiving the PECL signal by the optical module Interface Terminal, exports the FPGA of correspondence after it is unstringed to.In addition, in the on-the-spot end, be provided with the amplifier modulate circuit that amplifies conditioning for 2 road voltage signals that will input between analog to digital converter and the I/O signaling interface terminal; In the control end, be provided with the amplifier modulate circuit that amplifies conditioning for 2 road voltage signals that will export between digital to analog converter and the 2nd I/O signaling interface terminal.
In conjunction with shown in Figure 4, the one FPGA and the 2nd FPGA include input buffer module, output buffer module, the first preferential selection and control module, the second preferential selection and control module, framing CRC check module, separate frame CRC check module, 8B/10B coding module, 8B/10B decoder module and state machine, wherein, first preferentially select to use with control module priority arrangement is carried out in the input and output of corresponding input buffer module and output buffer module.The second preferential selection with control module for FPGA is carried out priority arrangement to the signal of corresponding string/deserializer parallel output.The first preferential selection and control module and the second preferential selection are followed successively by with the priority arrangement from high to low of control module: 2 road TTL pulse signals, 6 circuit-switched data signals and 2 road voltage signals.Framing CRC check module is used for the information source coding, and it encapsulates and verification by the first preferential data of selecting to read in the input buffer module with control module.The 8B/10B coding module is used for the data after framing CRC check module package and the verification are carried out the 8B/10B coding, and is sent to corresponding string/deserializer by the second preferential selection with control module behind coding.The 8B/10B decoder module is used for receiving the data that corresponding string/deserializer sends by the second preferential selection with control module, and it is carried out the 8B/10B decoding.Solution frame CRC check module is used for source coding, and the data of output after the decoding of 8B/10B decoder module are carried out decapsulation and verification, and the data communication device after decapsulation and the verification is crossed first preferentially select to write output buffer memory mould with control module.State machine then is used for realization to the state transitions control of framing CRC check module, solution frame CRC check module, 8B/10B coding module and 8B/10B decoder module.The purpose of above-mentioned CRC check is to reduce the error rate, improves communication quality.Calculated crc value and together sent to receiving terminal with data by generator polynomial when sending data, receiving terminal recomputates CRC to the data of receiving and compares with the CRC that receives, if two crc value differences illustrate that then mistake appears in data communication.The first optical module of on-the-spot end and the second optical module of control end consist of by optical module radiating circuit and optical module receiving circuit.
In conjunction with shown in Figure 6, wherein, the optical module receiving circuit comprises optical-electrical converter, pre-amplification circuit, rear class amplifying circuit, the first filter network and decision circuit.Optical-electrical converter is used for receiving optical signals and converts thereof into corresponding current signal output.Very faint from the current signal that optical-electrical converter obtains, be generally μ A or nA magnitude, thereby need pre-amplification circuit that the current signal of optical-electrical converter output is converted to corresponding voltage signal and amplifies output.Because pre-amplification circuit is subjected to the restriction of multiplication factor, the amplitude of output voltage signal is often less, can not satisfy the input requirements of decision circuit, thereby the voltage signal of pre-amplification circuit output need to amplify processing again through the rear class amplifying circuit, as long as the bandwidth that satisfies certain multiplication factor and be fit to is processed in the amplification of rear class amplifying circuit.Decision circuit is used for that the rear class amplifying circuit is amplified the rear irregular voltage signal of exporting and carries out the level judgement, and the PECL signal is exported in shaping after the level judgement.The first filter network is used for input power is carried out the backward pre-amplification circuit of filtering, rear class amplifying circuit and decision circuit power supply.
In conjunction with shown in Figure 5, wherein, the optical module radiating circuit comprises drive circuit, laser, photodetector, APC circuit, the second filter network, light-emitting diode and warning circuit.Drive circuit is used for being converted to from the PECL signal of FPGA the required current signal of drive laser, and with this current signal amplify with modulation treatment after output drive signal.Laser is used for sending corresponding light signal according to the driving signal of drive circuit output.Photodetector is used for the luminous power of the light signal that detecting laser sends.Because the luminous power of laser output is easy to be subject to the impact of temperature and laser ageing, the luminous power of the light signal that the APC circuit then can detect according to photodetector is regulated the bias current of self automatically, and power output is adjusted signal to drive circuit accordingly, with the light power stabilising of the light signal that keeps laser output.Warning circuit is used for when the power adjustment signal of judging the output of APC circuit causes the luminous power of the light signal that laser sends to be lower than setting threshold, and the outputting alarm signal is lighted light-emitting diode.The first filter network is used for input power is carried out the backward drive circuit of filtering, APC circuit and warning circuit power supply.
Above embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the common engineers and technicians in this area make the technical solution of the utility model all should fall in the definite protection range of claims of the present utility model.
Claims (8)
1. microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly, it is characterized in that, comprise the scene end and the control end that adopt multi-chip stack packaging structure, described on-the-spot end comprises a FPGA, analog to digital converter, the first level translator, the first optical module and an I/O signaling interface terminal that adopts BGA to encapsulate, described control end comprises the 2nd FPGA, digital to analog converter, the second electrical level transducer, the second optical module and the 2nd I/O signaling interface terminal that adopts BGA to encapsulate, link to each other by a Transmission Fibers between described the second optical module and described the first optical module, wherein
A described I/O signaling interface terminal is used for providing the plurality of voltages signal that inputs to described on-the-spot end, the input interface of multichannel data signal, reaches the multichannel data signal of described on-the-spot end output, the output interface of multichannel TTL pulse signal;
Described the 2nd I/O signaling interface terminal is used for providing the plurality of voltages signal of described control end output, the output interface of multichannel data signal, and inputs to the multichannel data signal of described control end, the input interface of multichannel TTL pulse signal;
Described analog to digital converter is used for receiving the plurality of voltages signal by a described I/O signaling interface terminal, and it is carried out being sent to a described FPGA after the analog-to-digital conversion;
Described digital to analog converter is used for receiving the plurality of voltages signal that described the 2nd FPGA exports, and it is carried out exporting by described the 2nd I/O signaling interface terminal after the digital-to-analogue conversion;
Described the first level translator is used for receiving multichannel data signal and the multichannel TTL pulse signal of described FPGA output, and it is carried out level match change rear by described I/O signaling interface terminal output;
Described second electrical level transducer is used for receiving the multichannel data signal of described the 2nd FPGA output, and it is carried out level match change rear by described the 2nd I/O signaling interface terminal output;
A described FPGA is used for when the voltage signal of receiving multi-path digital and multichannel data signal it being transformed to one road PECL signal and is sent to described the first optical module; When receive that described the first optical module sends include the PECL signal of multichannel data signal and multichannel TTL pulse signal the time, it is transformed into corresponding multichannel data signal and multichannel TTL output of pulse signal;
Described the 2nd FPGA is used for when receiving multichannel data signal and multichannel TTL pulse signal it being transformed to one road PECL signal and is sent to described the second optical module; When receiving the PECL signal of the voltage signal that includes multi-path digital that described the second optical module sends and multichannel data signal, it is transformed into voltage signal and the output of multichannel data signal of corresponding multi-path digital;
Described the first optical module is used for being converted into corresponding light signal and is sent to described the second optical module by described Transmission Fibers when receiving the PECL signal that a described FPGA sends; When receiving the light signal that described the second optical module sends by described Transmission Fibers, be converted into corresponding PECL signal output;
Described the second optical module is used for being converted into corresponding light signal and is sent to described the first optical module by described Transmission Fibers when receiving the PECL signal that described the 2nd FPGA sends; When receiving the light signal that described the first optical module sends by described Transmission Fibers, be converted into corresponding PECL signal output.
2. microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly according to claim 1 is characterized in that, described the first optical module and described the second optical module consist of by optical module radiating circuit and optical module receiving circuit, wherein,
Described optical module receiving circuit comprises optical-electrical converter, pre-amplification circuit, rear class amplifying circuit, the first filter network and decision circuit;
Described optical-electrical converter is used for receiving optical signals and converts thereof into corresponding current signal output;
Described pre-amplification circuit is used for the current signal of described optical-electrical converter output is converted to corresponding voltage signal and amplifies output;
Described rear class amplifying circuit is used for the voltage signal of described pre-amplification circuit output is amplified output;
Described decision circuit is used for that described rear class amplifying circuit is amplified the rear irregular voltage signal of exporting and carries out the level judgement, and the PECL signal is exported in shaping after the level judgement;
Described the first filter network is used for input power is carried out the backward described pre-amplification circuit of filtering, described rear class amplifying circuit and the power supply of described decision circuit;
Described optical module radiating circuit comprises drive circuit, laser, photodetector, APC circuit, the second filter network, light-emitting diode and warning circuit;
Described drive circuit is used for being converted to from the PECL signal of FPGA and drives the required current signal of described laser, and with this current signal amplify with modulation treatment after output drive signal;
Described laser is used for sending corresponding light signal according to the driving signal of described drive circuit output;
Described photodetector is used for surveying the luminous power of the light signal that described laser sends;
Described APC circuit, the luminous power that is used for the light signal that detects according to described photodetector is regulated the bias current of self automatically, and power output is adjusted signal to described drive circuit accordingly, with the light power stabilising of the light signal that keeps described laser output;
Described warning circuit is used for when the power adjustment signal of judging described APC circuit output causes the luminous power of the light signal that described laser sends to be lower than setting threshold, and the outputting alarm signal is lighted described light-emitting diode;
Described the first filter network is used for input power is carried out the backward described drive circuit of filtering, described APC circuit and the power supply of described warning circuit.
3. microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly according to claim 2, it is characterized in that, a described FPGA and described the 2nd FPGA are equipped with stringization/deserializer, and described string/deserializer connects described Transmission Fibers by the optical module Interface Terminal that adopts the BGA encapsulation, wherein
Described string/deserializer, be used for when receiving the signal of FPGA output, its string being changed into one road PECL signal also by corresponding optical module Interface Terminal output, when receiving the PECL signal by the optical module Interface Terminal, export corresponding FPGA after it is unstringed to.
4. microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly according to claim 3, it is characterized in that, be provided with between described analog to digital converter and the described I/O signaling interface terminal for the plurality of voltages signal with input and amplify the amplifier modulate circuit of conditioning.
5. microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly according to claim 4, it is characterized in that, be provided with between described digital to analog converter and described the 2nd I/O signaling interface terminal for the plurality of voltages signal with output and amplify the amplifier modulate circuit of conditioning.
6. microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly according to claim 5, it is characterized in that, a described FPGA and described the 2nd FPGA include input buffer module, output buffer module, the first preferential selection and control module, the second preferential selection and control module, framing correction verification module, separate frame check module, 8B/10B coding module, 8B/10B decoder module and state machine, wherein
The described first preferential selection and control module used the input buffer module of correspondence and the input and output of output buffer module carried out priority arrangement;
The described second preferential selection and control module is used for FPGA is carried out priority arrangement to the signal of the string of correspondence/deserializer parallel output;
Described framing correction verification module is used for the information source coding, encapsulates and verification by the described first preferential data of selecting to read in the described input buffer module with control module;
Described 8B/10B coding module is used for the data after described framing correction verification module encapsulation and the verification are carried out the 8B/10B coding, and is sent to corresponding string/deserializer by the described second preferential selection with control module behind coding;
Described 8B/10B decoder module is used for receiving the data that corresponding string/deserializer sends by the described second preferential selection with control module, and it is carried out the 8B/10B decoding;
Described solution frame check module is used for source coding, and the data of output after the described 8B/10B decoder module decoding are carried out decapsulation and verification, and the data communication device after decapsulation and the verification is crossed described first preferentially select to write described output buffer module with control module;
Described state machine is used for realization to the state transitions control of described framing correction verification module, described solution frame check module, described 8B/10B coding module and described 8B/10B decoder module.
7. microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly according to claim 6 is characterized in that, described framing correction verification module is framing CRC check module, and described solution frame check module is for separating frame CRC check module.
8. microminiaturized multichannel two-way signaling Optical Fiber Transmission assembly according to claim 7, it is characterized in that, the described first preferential selection and control module and the described second preferential selection are followed successively by with the priority arrangement from high to low of control module: multichannel TTL pulse signal, multichannel data signal and plurality of voltages signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220526714 CN202918300U (en) | 2012-10-15 | 2012-10-15 | Miniaturized multi-path two-way signal optical fiber transmission component |
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| CN 201220526714 CN202918300U (en) | 2012-10-15 | 2012-10-15 | Miniaturized multi-path two-way signal optical fiber transmission component |
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| CN 201220526714 Withdrawn - After Issue CN202918300U (en) | 2012-10-15 | 2012-10-15 | Miniaturized multi-path two-way signal optical fiber transmission component |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882604A (en) * | 2012-10-15 | 2013-01-16 | 中国电子科技集团公司第八研究所 | Miniaturized multi-path two-way signal optical fiber transmission component |
| CN108923849A (en) * | 2018-06-08 | 2018-11-30 | 江苏奥雷光电有限公司 | A kind of batch testing method of high-speed parallel multichannel optoelectronic transceiver module |
| CN111817784A (en) * | 2019-04-10 | 2020-10-23 | 华为技术有限公司 | Coding and decoding method and device in optical communication |
| CN114696911A (en) * | 2022-03-30 | 2022-07-01 | 航天科工微电子系统研究院有限公司 | Optical fiber communication processing module based on heterogeneous packaging |
-
2012
- 2012-10-15 CN CN 201220526714 patent/CN202918300U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882604A (en) * | 2012-10-15 | 2013-01-16 | 中国电子科技集团公司第八研究所 | Miniaturized multi-path two-way signal optical fiber transmission component |
| CN102882604B (en) * | 2012-10-15 | 2016-09-14 | 中国电子科技集团公司第八研究所 | Miniaturization multichannel two-way signaling fiber-optic transfer assembly |
| CN108923849A (en) * | 2018-06-08 | 2018-11-30 | 江苏奥雷光电有限公司 | A kind of batch testing method of high-speed parallel multichannel optoelectronic transceiver module |
| CN108923849B (en) * | 2018-06-08 | 2021-03-16 | 江苏奥雷光电有限公司 | Batch test method for high-speed parallel multi-channel photoelectric transceiving modules |
| CN111817784A (en) * | 2019-04-10 | 2020-10-23 | 华为技术有限公司 | Coding and decoding method and device in optical communication |
| CN111817784B (en) * | 2019-04-10 | 2022-01-14 | 华为技术有限公司 | Coding and decoding method and device in optical communication |
| CN114696911A (en) * | 2022-03-30 | 2022-07-01 | 航天科工微电子系统研究院有限公司 | Optical fiber communication processing module based on heterogeneous packaging |
| CN114696911B (en) * | 2022-03-30 | 2023-07-18 | 航天科工微电子系统研究院有限公司 | Optical fiber communication processing module based on heterogeneous encapsulation |
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