CN108964768A - Optical module receives circuit, optical module and communication equipment - Google Patents
Optical module receives circuit, optical module and communication equipment Download PDFInfo
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- CN108964768A CN108964768A CN201811075376.3A CN201811075376A CN108964768A CN 108964768 A CN108964768 A CN 108964768A CN 201811075376 A CN201811075376 A CN 201811075376A CN 108964768 A CN108964768 A CN 108964768A
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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
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
- H04B10/25891—Transmission components
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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
- H04B10/60—Receivers
Abstract
The present invention provides a kind of optical module and receives circuit, optical module and communication equipment.The optical module receives circuit, comprising: is sequentially connected photoelectric conversion unit, switching rate unit and clipping control unit.Wherein, photoelectric conversion unit for receiving the optical signal of different rates size, and converts optical signals to voltage signal.Switching rate unit, for receiving control signal from microprocessor, control signal is used to show the timing between the voltage signal of different rates size, and according to control signal, selection target transmission channel, and voltage signal is sent to clipping control unit by object transmission channel.Clipping control unit sends amplified voltage signal for amplifying voltage signal, and to microprocessor.The present invention has taken into account the transmission process of two-forty signal and low-rate signal.
Description
Technical field
Circuit, optical module and communication is received the present invention relates to technical field of optical fiber communication more particularly to a kind of optical module to set
It is standby.
Background technique
10000000000 than symmetrical passive optical network (10-Gigabit-capable symmetric passive optical
Network, XGSPON) optical line terminal (optical line terminal, OLT) optical module (abbreviation optical module) can be
The large and small switching of bandwidth is realized between high-speed 9.953Gb/ps and low rate 2.488Gb/ps, greatly meets user to band
Wide demand has accomplished taking into account for optical signal dual rate, so that the sensitivity that optical module receives optical signal is optimal.
It needs to carry out under 9.953Gb/ps and 2.488Gb/ps dual rate currently, the optical module in optical module receives circuit
Component is compatible, realizes the time domain selection of 9.953Gb/ps and 2.488Gb/ps dual rate.Due to the general phase of high-speed electric signal
Its amplitude is lower for low rate electric signal, and slightly changing for two-forty signal can all cause seriously declining for two-forty signal
Subtract, therefore, in order to guarantee that the data transmission quality of two-forty signal, existing optical module receive circuit and mainly guaranteeing downlink reception
On the basis of 9.953Gb/ps data, the downlink reception for taking into account 2.488Gb/ps data can be just removed.
However, existing optical module, which receives circuit, can not combine the downlink reception of two-forty signal and low-rate signal,
And it is 10G component that existing optical module, which receives most components in circuit, is readily incorporated excessive high-frequency noise, reduces first device
The signal-to-noise ratio of part, so that the sensitivity behaviour that existing optical module receives circuit reception 2.488Gb/ps data is unable to reach industry and wants
It asks.
Summary of the invention
The present invention provides a kind of optical module and receives circuit, optical module and communication equipment, to solve.
In a first aspect, the present invention provides a kind of optical module reception circuit, comprising:
Photoelectric conversion unit, switching rate unit and clipping control unit；
Wherein, the first output end of the photoelectric conversion unit is single by the switching rate unit and clipping control
The first input end connection of member, the second output terminal of the photoelectric conversion unit pass through the switching rate unit and the clipping
Second input terminal of control unit connects, and the control terminal of the switching rate unit is connect with microprocessor, the clipping control
The first output end and second output terminal of unit are connect with the microprocessor；
The photoelectric conversion unit is converted to electricity for receiving the optical signal of different rates size, and by the optical signal
Press signal；
The switching rate unit, for receiving control signal from the microprocessor, the control signal is for showing
Timing between the voltage signal of different rates size, and according to the control signal, selection target transmission channel, and pass through institute
It states object transmission channel and sends the voltage signal to the clipping control unit；
The clipping control unit for amplifying the voltage signal, and sends to the microprocessor and amplifies
Voltage signal afterwards.
Optionally, the switching rate unit includes: the first electronic switch, the second electronic switch, the first inductance, the second electricity
Sense, first capacitor and the second capacitor；
Wherein, the first end of the first capacitor is connect with the first output end of the photoelectric conversion unit, and described first
The second end of capacitor is connect with the first end of first inductance, the second end of first inductance and the clipping control unit
First input end connection, the first end of first electronic switch is connected to the second end and described first of the first capacitor
Between the first end of inductance, the second end of first electronic switch be connected to first inductance second end and the clipping
Between the first input end of control unit；
The first end of second capacitor is connect with the second output terminal of the photoelectric conversion unit, second capacitor
Second end is connect with the first end of second inductance, and the second of the second end of second inductance and the clipping control unit
Input terminal connection, the first end of second electronic switch be connected to second capacitor second end and second inductance
Between first end, the second end of second electronic switch is connected to the second end and clipping control list of second inductance
Between second input terminal of member；
The control terminal of first electronic switch is connect with the microprocessor, for according to the control signal, control
Closed in itself or disconnection to select the object transmission channel, and control list to the clipping by the object transmission channel
Member sends the voltage signal；
The control terminal of second electronic switch is connect with the microprocessor, for according to the control signal, control
Closed in itself or disconnection to select the object transmission channel, and control list to the clipping by the object transmission channel
Member sends the voltage signal.
Optionally, first electronic switch is specifically used for controlling itself when the control signal is high level and closing
It closes, so that the voltage signal is transferred to the first input end of the clipping control unit by the first capacitor；
First electronic switch, for controlling itself and disconnecting, so that the electricity when the control signal is low level
Pressure signal passes sequentially through the first capacitor and first inductance is sent to the first input end of the clipping control unit.
Optionally, second electronic switch is specifically used for controlling itself when the control signal is high level and closing
It closes, so that the voltage signal is sent to the second input terminal of the clipping control unit by second capacitor；
Second electronic switch, for controlling itself and disconnecting, so that the electricity when the control signal is low level
Pressure signal passes sequentially through second capacitor and second inductance is sent to the second input terminal of the clipping control unit.
Optionally, the switching rate unit further include: the third capacitor of n series connection and m the be connected in series
Four capacitors, n and m are positive integer；
Wherein, one end of the n third capacitor respectively with the first end of first electronic switch and it is described first electricity
The second end of appearance connects, and the other end of the n third capacitor is connect with the first end of first inductance；
One end of the m the 4th capacitor respectively with the first end of second electronic switch and second capacitor the
The connection of two ends, the other end of the m the 4th capacitors are connect with the first end of second inductance.
Optionally, the parameter of the switching rate unit is determined by the size of each rate of the optical signal.
Optionally, the photoelectric conversion unit includes: photoelectric converter and trans-impedance amplifier；
Wherein, the output end of the photoelectric converter is connect with the input terminal of the trans-impedance amplifier, described to amplify across resistance
First output end of device is connect with the first input end of the switching rate unit, the second output terminal of the trans-impedance amplifier with
Second input terminal of the switching rate unit connects.
Optionally, the clipping control unit includes: limiting amplifier, the first build-out resistor and the second build-out resistor；
Wherein, the first input end of the limiting amplifier respectively with the first output end of the switching rate unit and institute
The first end connection of the first build-out resistor is stated, the second end of first build-out resistor connects reference voltage, the limited range enlargement
First output end of device is connect with the microprocessor；
Second input terminal of the limiting amplifier respectively with the second output terminal of the switching rate unit and described
The first end of two build-out resistors connects, and the second end of second build-out resistor connects the reference voltage, the limited range enlargement
The second output terminal of device is connect with the microprocessor.
Second aspect, the present invention provide a kind of optical module, comprising: microprocessor and optical module as described in relation to the first aspect
Receive circuit.
The third aspect, the present invention provide a kind of communication equipment, comprising: the optical module as described in second aspect.
Optical module provided by the invention receives circuit, optical module and communication equipment, by switching rate unit respectively with light
The connection of electric converting unit and clipping control unit, since switching rate unit can receive control signal from microprocessor,
And the control signal may indicate that the timing between the voltage signal of different rates size, therefore, switching rate unit can root
According to control signal, object transmission channel corresponding with the rate size of voltage signal is selected, and realize by object transmission channel
From photoelectric conversion unit to the process of the voltage signal of clipping control unit transmission different rates size.In the present embodiment, switching
The setting of rate cell can choose transmission channel corresponding with the rate size of signal, realize the signal of different rates size
Transmission, solve the problems, such as that the prior art cannot be considered in terms of two-forty signal and low-rate signal transmission, and optical module connect
It receives each device its performance during transmitting the signal of different rates in circuit to be all optimal, solve in the prior art
The problem of sensitivity behaviour of low-rate signal transmission is unable to reach industry requirement, and design is simple and easy, cost is relatively low.
Detailed description of the invention
It, below will be to embodiment or existing in order to clearly demonstrate the embodiment of the present invention or technical solution in the prior art
Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments of embodiment, for those of ordinary skill in the art, without any creative labor, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is the structural schematic diagram that optical module provided by the invention receives circuit；
Fig. 2 is the circuit diagram that optical module provided by the invention receives circuit；
Fig. 3 is the circuit diagram that optical module provided by the invention receives circuit；
Fig. 4 is the structural schematic diagram of optical module provided by the invention；
Fig. 5 is the structural schematic diagram of communication equipment provided by the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the embodiment of the present invention, instead of all the embodiments.Based on the embodiment in the embodiment of the present invention, this field
Those of ordinary skill's every other embodiment obtained without making creative work, belongs to implementation of the present invention
The range of example protection.
Fig. 1 is the structural schematic diagram that optical module provided by the invention receives circuit, as shown in Figure 1, the optical mode of the present embodiment
It may include: photoelectric conversion unit 11, switching rate unit 12 and clipping control unit 13 that block, which receives circuit 10,.
Wherein, the first output end of photoelectric conversion unit 11 pass through switching rate unit 12 and clipping control unit 13 the
The connection of one input terminal, the second output terminal of photoelectric conversion unit 11 pass through switching rate unit 12 and clipping control unit 13 the
The connection of two input terminals, the control terminal of switching rate unit 12 are connect with microprocessor, the first output end of clipping control unit 13
It is connect with second output terminal with microprocessor.
Photoelectric conversion unit 11 for receiving the optical signal of different rates size, and converts optical signals to voltage signal.
Switching rate unit 12, for receiving control signal from microprocessor, control signal is for showing that different rates are big
Timing between small voltage signal, and according to control signal, selection target transmission channel, and pass through object transmission channel to limit
Width control unit 13 sends voltage signal.
Clipping control unit 13 sends amplified voltage letter for amplifying voltage signal, and to microprocessor
Number.
Specifically, photoelectric conversion unit 11 can be used for receiving the optical signal of various rates, and convert optical signals into electricity
Press signal.Wherein, as shown in Figure 1, in a kind of specific structure of photoelectric conversion unit 11, photoelectric conversion unit 11 includes: photoelectricity
Converter and trans-impedance amplifier (trans-impedance amplifier, TIA).
Wherein, the input terminal of the output end of photoelectric converter and trans-impedance amplifier connects, the first output of trans-impedance amplifier
End is connect with the first input end of switching rate unit 12, and the of the second output terminal of trans-impedance amplifier and switching rate unit 12
The connection of two input terminals.
Specifically, for ease of description, as shown in figure 1, photoelectric converter is with avalanche photodide (avalanche
Photo diode, APD) it shows, APD receives different rates from optical network unit (optical network unit, ONU)
Optical signal, the optical signal received is converted into current signal again, is transferred to TIA by APD, and current signal is converted by TIA again
Voltage signal.
Further, different containing instruction in the data packet for receiving ONU transmission due to the microprocessor in optical module
The signal of the instruction of the timing of the signal of rate, i.e. one size of rate can be transmitted at what moment, the letter of two size of rate
It number can be transmitted at what moment, therefore, the timing of the available optical signal to different rates of microprocessor, thus according to
The timing sends control signal to switching rate unit 12.Wherein, control signal can include but is not limited to the shape of low and high level
The form of formula, the form of code or mark.
Further, it may indicate that the timing between the voltage signal of different rates size due to controlling signal, not only table
Chronological order between bright each voltage signal also shows the rate size of each voltage signal, therefore, switching rate list
Member 12 can determine the rate size of voltage signal according to control signal, thus, select target corresponding with the rate size
Transmission channel, switching rate unit 12 will be sent to clipping control unit 13 by the object transmission channel again with voltage signal.
Further, clipping control unit 13 amplifies voltage signal, is transmitted further to microprocessor and carries out subsequent behaviour
Make.Wherein, as shown in Figure 1, clipping control unit 13 includes: limited range enlargement in a kind of specific structure of clipping control unit 13
Device (limiting amplifier, LA), the first build-out resistor R1 and the second build-out resistor R2.
Wherein, the first input end of limiting amplifier LA respectively with the first output end of switching rate unit 12 and first
First end connection with resistance R1, the second end of the first build-out resistor R1 connect reference voltage Vref, and the of limiting amplifier LA
One output end is connect with microprocessor.
The second input terminal of limiting amplifier LA matches electricity with the second output terminal of switching rate unit 12 and second respectively
The first end connection of R2 is hindered, the second end of the second build-out resistor R2 connects reference voltage Vref, and the second of limiting amplifier LA is defeated
Outlet is connect with microprocessor.
Specifically, the amplification work of the voltage signal of different rates size may be implemented in limiting amplifier LA, and for reality
The problem of existing impedance matching, anti-stop signal deteriorates, can be set in the first input end of limiting amplifier LA in the present embodiment
It is equipped with the first build-out resistor R1, the second input terminal of limiting amplifier LA is provided with the second build-out resistor R2, and then can be maximum
Guarantee to limit the transmission of small signal.Wherein, the first build-out resistor R1 and the second build-out resistor R2 is used for and limiting amplifier LA
Output impedance match, resistance value can be arranged according to the output impedance of limiting amplifier LA.
It should be understood that the letter between photoelectric conversion unit 11, switching rate unit 12 and clipping control unit 13
Number by the way of the differential transfer for being, be conducive to the identification of small signal, prevent external electromagnetic interference, therefore, photoelectric conversion
Unit 11 includes two output ends, and switching rate unit 12 includes two input terminals and two output ends, clipping control unit 13
Including two input terminals and two output ends.
Optical module provided in this embodiment receives circuit, by switching rate unit respectively with photoelectric conversion unit and clipping
The connection of control unit, since switching rate unit can receive control signal from microprocessor, and the control signal can be with
Show the timing between the voltage signal of different rates size, therefore, switching rate unit can according to control signal, selection with
The corresponding object transmission channel of the rate size of voltage signal, and realized by object transmission channel from photoelectric conversion unit to limit
Width control unit transmits the process of the voltage signal of different rates size.In the present embodiment, the setting of switching rate unit can be with
Transmission channel corresponding with the rate size of signal is selected, the transmission of the signal of different rates size is realized, solves existing
Technology cannot be considered in terms of the problem of two-forty signal and low-rate signal transmission, and makes optical module receive each device in circuit and exist
Its performance is all optimal during transmitting the signal of different rates, solves the spirit of low-rate signal transmission in the prior art
The problem of sensitivity performance is unable to reach industry requirement, and design is simple and easy, cost is relatively low.
On the basis of above-described embodiment Fig. 1, in conjunction with Fig. 2, the present embodiment provides a kind of switching rate units 12.Fig. 2 is
Optical module provided by the invention receives the circuit diagram of circuit, as shown in Fig. 2, the switching rate unit 12 of the present embodiment wraps
It includes: the first electronic switch K1, the second electronic switch K2, the first inductance L1, the second inductance L2, first capacitor C1 and the second capacitor
C2。
Wherein, the first end of first capacitor C1 is connect with the first output end of photoelectric conversion unit 11, first capacitor C1's
Second end is connect with the first end of the first inductance L1, the second end of the first inductance L1 and the first input end of clipping control unit 13
Connection, the first end of the first electronic switch K1 are connected between the second end of first capacitor C1 and the first end of the first inductance L1,
The second end of first electronic switch K1 be connected to the first inductance L1 second end and clipping control unit 13 first input end it
Between.
The first end of second capacitor C2 is connect with the second output terminal of photoelectric conversion unit 11, the second end of the second capacitor C2
It being connect with the first end of the second inductance L2, the second end of the second inductance L2 is connect with the second input terminal of clipping control unit 13,
The first end of second electronic switch K2 is connected between the second end of the second capacitor C2 and the first end of the second inductance L2, the second electricity
The second end of sub switch K2 is connected between the second end of the second inductance L2 and the second input terminal of clipping control unit 13.
The control terminal of first electronic switch K1 is connect with microprocessor, for according to control signal, control closed in itself or
It disconnects, with selection target transmission channel, and voltage signal is sent to clipping control unit 13 by object transmission channel.
The control terminal of second electronic switch K2 is connect with microprocessor, for according to control signal, control closed in itself or
It disconnects, with selection target transmission channel, and voltage signal is sent to clipping control unit 13 by object transmission channel.
Specifically, the control signal that the first electronic switch K1 and the second electronic switch K2 are sent according to microprocessor, control
Closed in itself or disconnection to select corresponding object transmission channel, and pass through object transmission channel to clipping control unit 13
Send voltage signal.
It should be noted that microprocessor can send same control to the first electronic switch K1 and the second electronic switch K2
Signal, and the first electronic switch K1 and the second electronic switch K2 needs to keep synchronizing at this time, microprocessor can also be to the first electricity
Sub switch K1 and the second electronic switch K2 send respectively control signal and with the opposite signal of control signal polarity, and at this time first
Electronic switch K1 and the second electronic switch K2 need to keep asynchronous.
Optionally, the first electronic switch K1 is specifically used for controlling closed in itself when controlling signal is high level, so that
Voltage signal is transferred to the first input end of clipping control unit 13 by first capacitor C1.
First electronic switch K1 is disconnected for when controlling signal is low level, controlling itself, so that voltage signal is successively
The first input end of clipping control unit 13 is sent to by first capacitor C1 and the first inductance L1.
Optionally, the second electronic switch K2 is specifically used for controlling closed in itself when controlling signal is high level, so that
Voltage signal is sent to the second input terminal of clipping control unit 13 by the second capacitor C2；
Second electronic switch K2 is disconnected for when controlling signal is low level, controlling itself, so that voltage signal is successively
The second input terminal of clipping control unit 13 is sent to by the second capacitor C2 and the second inductance L2.
Specifically, for controlling signal and be pulse signal, when controlling signal is high level, the first electronic switch K1 can
To control closed in itself, so that the first inductance L1 short circuit, passes through first capacitor C1 connection photoelectric conversion unit 11 and clipping control
Object transmission channel between unit 13 processed, so that the voltage signal with high level corresponding speed size is logical by the object transmission
Road is sent to the first input end of clipping control unit 13.
Similarly, when controlling signal is high level, the second electronic switch K2 can control closed in itself, so that the second inductance
L2 short circuit, by object transmission channel of the second capacitor C2 connection between photoelectric conversion unit 11 and clipping control unit 13,
To be sent to the of clipping control unit 13 by the object transmission channel with the voltage signal of high level corresponding speed size
Two input terminals.
When controlling signal is low level, the first electronic switch K1 can control itself and disconnect, so that the first inductance L1 connects
It connects in circuit, the first inductance L1 and first capacitor C1 constitute limit frequency networks, pass through the first inductance L1's and first capacitor C1
Object transmission channel of the connection between photoelectric conversion unit 11 and clipping control unit 13 is connected, thus speed corresponding with low level
The voltage signal of rate size is sent to the first input end of clipping control unit 13 by the object transmission channel.
Similarly, when controlling signal is low level, the second electronic switch K2 can control itself and disconnect, so that the second inductance
In circuit, the second inductance L2 and the second capacitor C2 constitute limit frequency networks for L2 connection, pass through the second inductance L2 and the second capacitor
Object transmission channel of the connection connection of C2 between photoelectric conversion unit 11 and clipping control unit 13, thus with low level pair
The voltage signal of rate size is answered to be sent to the second input terminal of clipping control unit 13 by the object transmission channel.
Wherein, the present embodiment can set the size of voltage signal rate, the present embodiment according to the size of control signal
It does not limit this.For example, the corresponding rate size of voltage signal is high speed when controlling signal is high level；When control is believed
Number be low level when, the corresponding rate size of voltage signal be low speed.And first electronic switch K1 and the second electronic switch K2 can
To control being opened or closed for itself according to high level, can also being opened or closed according to low level control itself, this implementation
Example does not limit this.
In a specific embodiment, by taking optical module reception circuit 10 can access 10G signal and 2.5G signal as an example, lead to
The open and close for crossing the first electronic switch K1 and the second electronic switch K2 realizes the switching of different transmission channels, to realize voltage
The switching of the different rates of signal, detailed process are as follows:
When optical module, which receives circuit 10, accesses 10G signal, it is high that microprocessor can issue one to switching rate unit 12
Level controling signal, which, which can control the first electronic switch K1 and the second electronic switch K2, makes its closure, the first inductance
L1 and the second inductance L2 are shielded, so that the corresponding differential voltage signal of 10G signal passes through the electricity of first capacitor C1 and second respectively
Hold C2 and be transmitted to clipping control unit 13, to guarantee the normal transmission of signal high speed.
When optical module, which receives circuit 10, accesses 2.5G signal, it is low that microprocessor can issue one to switching rate unit 12
Level controling signal, the low level control the first electronic switch K1 and the second electronic switch K2 make its disconnection, the first inductance L1 and
First capacitor C1 constitutes limit frequency networks, the second inductance L2 and the second capacitor C2 and constitutes limit frequency networks, can stop high frequency division
Amount, by the corresponding differential voltage signal of low frequency 2.5G signal, to guarantee the normal transmission of signal low speed.
Further, the first electronic switch K1 and the second electronic switch K2 by closing or opening or makes the first electricity
Hold C1 and the second capacitor C2 be connected between photoelectric conversion unit 11 and clipping control unit 13 or make the first inductance L1 with
The LC frequency limit that the LC frequency limit network and the second inductance L2 and the second capacitor C2 that first capacitor C1 is constituted are constituted is connected to the network in photoelectricity
Between converting unit 11 and clipping control unit 13, to realize that two-forty signal and low rate are believed by different transmission channels
Number switching transmission.The setting of first electronic switch K1 and the second electronic switch K2 can guarantee the speed of switching, while reduce height
Guard time when rate signal and low-rate signal mixed transport between signal envelope and signal envelope, improves the fortune of optical module
Row bandwidth and utilization rate, and each device performance in optical module is optimal, so that low-rate signal transmission is sensitive
Degree requires to reach industry requirement (e.g., 1dBm or more).
On the basis of above-mentioned Fig. 2 embodiment, in conjunction with Fig. 3, the present embodiment also provides a kind of switching rate unit 12.Fig. 3
The circuit diagram that circuit is received for optical module provided by the invention, as shown in figure 3, switching rate unit 12 is different from Fig. 2
It is switching rate unit 12 further include: the third capacitor C3 and m the 4th capacitor C4, n and m being connected in series of n series connection
For positive integer.
Wherein, one end of n third capacitor C3 respectively with the first end of the first electronic switch K1 and first capacitor C1
The connection of two ends, the other end of n third capacitor C3 are connect with the first end of the first inductance L1.
One end of m the 4th capacitor C4 connects with the first end of the second electronic switch K2 and the second end of the second capacitor C2 respectively
It connects, the other end of m the 4th capacitor C4 is connect with the first end of the second inductance L2.
Specifically, existing optical module receives usually sets between photoelectric conversion unit 11 and clipping control unit 13 in circuit 10
There are two setting coupled capacitor (first capacitor C1 and the second capacitor C2 in Fig. 2).It, can the first inductance L1 in Fig. 2 in Fig. 3
Connect n third capacitor C3 between first capacitor C1, connects between the second inductance L2 and the second capacitor C2 in Fig. 2 m
4th capacitor C4, thus, opto-electronic receiver circuit can also pass through the closure to the first electronic switch K1 and the second electronic switch K2
And disconnection, achieve the purpose that the rate switching of voltage signal.
Further, by formula F=1/ (2* π * Sqrt (L*C)), can determine in switching rate unit 12 capacitor and
The specific value of inductance, wherein F is the frequency of optical signal, and L, C are respectively inductance and capacitor in switching rate unit 12.
Fig. 4 is the structural schematic diagram of optical module provided by the invention, as shown in figure 4, the optical module 40 of the present embodiment can be with
It include: that microprocessor 41 and such as above-mentioned optical module receive circuit 42.
Wherein, optical module 40 can also include: 40 shell of optical module (being not shown in Fig. 4), microprocessor 41 and optical module
Circuit 42 is received to be encapsulated in 40 shell of optical module.
Microprocessor internal is provided with memory, and for storing program, program may include program code, program code packet
Computer operation instruction is included, memory may include random access memory, nonvolatile memory, for example, at least a disk
Memory.And a microprocessor 41 is only shown in Fig. 4, microprocessor 41 can also include multiple micro- according to actual needs
Processor 41.Microprocessor 41 is for reading the program code stored in memory.
Microprocessor 41 is usually the allomeric function for controlling optical module 40, for example, business processing and photoelectric communication etc..Micro- place
Managing device 41 may include one or more microprocessors 41, can also include one or more modules, to execute instruction, to complete
The process etc. that circuit 42 sends instruction is received to optical module.
Further, memory is also provided with inside optical module 40, memory is configured as storing various types of
Data are to support optical module 40.The example of these data includes any application or method for operating on optical module 40
Instruction.Memory can have the combination of any kind of volatibility or non-volatile memory device or both to realize, such as quiet
State random access memory, electrically erasable programmable read-only memory, Erasable Programmable Read Only Memory EPROM may be programmed read-only deposit
Reservoir, read-only memory, magnetic memory, flash memory, disk or CD.
It further, can also include power supply module inside optical module 40, power supply module is the various components of optical module 40
Electric power is provided.Power supply module can be power-supply management system, including one or more power supplys and other with for optical module 40 give birth to
At, management and distribution the associated component of electric power.
Further, it can be configured with input/output (I/O) interface inside optical module 40, I/O interface is microprocessor
Interface is provided between 41 and peripheral interface module, above-mentioned peripheral interface can be click wheel, button etc..These buttons may include
But it is not limited to start button, close button, switching button and switching push button.
Optical module provided in this embodiment includes that above-mentioned optical module receives circuit, and above-mentioned optical module can be performed and receive circuit
Embodiment implements principle and technical effect, reference can be made to the technical solution of above-mentioned Fig. 1-embodiment illustrated in fig. 3, herein not
It repeats again.
Fig. 5 is the structural schematic diagram of communication equipment provided by the invention, as shown in figure 5, the communication equipment 50 of the present embodiment
It may include: such as above-mentioned optical module 51.
Wherein, communication equipment 50 can not do this for photoelectronic devices, the present embodiment such as digital switch or routers
It limits.
Communication equipment provided in this embodiment includes above-mentioned optical module, and the embodiment of above-mentioned optical module can be performed, specific
Implementing principle and technical effect, reference can be made to the technical solution of above-mentioned embodiment illustrated in fig. 4, details are not described herein again.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of optical module receives circuit characterized by comprising
Photoelectric conversion unit, switching rate unit and clipping control unit；
Wherein, the first output end of the photoelectric conversion unit passes through the switching rate unit and the clipping control unit
The second output terminal of first input end connection, the photoelectric conversion unit is controlled by the switching rate unit and the clipping
Second input terminal of unit connects, and the control terminal of the switching rate unit is connect with microprocessor, the clipping control unit
The first output end and second output terminal connect with the microprocessor；
The photoelectric conversion unit is converted to voltage letter for receiving the optical signal of different rates size, and by the optical signal
Number；
The switching rate unit, for receiving control signal from the microprocessor, the control signal is for showing difference
Timing between the voltage signal of rate size, and according to the control signal, selection target transmission channel, and pass through the mesh
It marks transmission channel and sends the voltage signal to the clipping control unit；
The clipping control unit, for the voltage signal to be amplified, and it is amplified to microprocessor transmission
Voltage signal.
2. circuit according to claim 1, which is characterized in that the switching rate unit includes: the first electronic switch,
Two electronic switches, the first inductance, the second inductance, first capacitor and the second capacitor；
Wherein, the first end of the first capacitor is connect with the first output end of the photoelectric conversion unit, the first capacitor
Second end connect with the first end of first inductance, the of the second end of first inductance and the clipping control unit
One input terminal connection, the first end of first electronic switch be connected to the first capacitor second end and first inductance
First end between, the second end of first electronic switch be connected to first inductance second end and the clipping control
Between the first input end of unit；
The first end of second capacitor is connect with the second output terminal of the photoelectric conversion unit, and the second of second capacitor
End is connect with the first end of second inductance, the second input of the second end of second inductance and the clipping control unit
End connection, the first end of second electronic switch be connected to second capacitor second end and second inductance first
Between end, the second end of second electronic switch is connected to the second end and the clipping control unit of second inductance
Between second input terminal；
The control terminal of first electronic switch is connect with the microprocessor, for controlling itself according to the control signal
Closing or opening to select the object transmission channel, and is sent out by the object transmission channel to the clipping control unit
Send the voltage signal；
The control terminal of second electronic switch is connect with the microprocessor, for controlling itself according to the control signal
Closing or opening to select the object transmission channel, and is sent out by the object transmission channel to the clipping control unit
Send the voltage signal.
3. circuit according to claim 2, which is characterized in that first electronic switch is specifically used in the control
When signal is high level, closed in itself is controlled, so that the voltage signal is transferred to the clipping control by the first capacitor
The first input end of unit processed；
First electronic switch, for controlling itself and disconnecting when the control signal is low level, so that the voltage is believed
It number passes sequentially through the first capacitor and first inductance is sent to the first input end of the clipping control unit.
4. circuit according to claim 2, which is characterized in that second electronic switch is specifically used in the control
When signal is high level, closed in itself is controlled, so that the voltage signal is sent to the clipping control by second capacitor
Second input terminal of unit processed；
Second electronic switch, for controlling itself and disconnecting when the control signal is low level, so that the voltage is believed
It number passes sequentially through second capacitor and second inductance is sent to the second input terminal of the clipping control unit.
5. circuit according to claim 2, which is characterized in that the switching rate unit further include: n series connection
4th capacitor of third capacitor and m series connection, n and m are positive integer；
Wherein, one end of the n third capacitor respectively with the first end of first electronic switch and the first capacitor
Second end connection, the other end of the n third capacitor are connect with the first end of first inductance；
One end of the m the 4th capacitor second end with the first end of second electronic switch and second capacitor respectively
The other end of connection, the m the 4th capacitors is connect with the first end of second inductance.
6. circuit according to claim 2, which is characterized in that the parameter of the switching rate unit is by the optical signal
Each rate size determine.
7. circuit according to claim 1-6, which is characterized in that the photoelectric conversion unit includes: that photoelectricity turns
Parallel operation and trans-impedance amplifier；
Wherein, the output end of the photoelectric converter is connect with the input terminal of the trans-impedance amplifier, the trans-impedance amplifier
First output end is connect with the first input end of the switching rate unit, the second output terminal of the trans-impedance amplifier with it is described
Second input terminal of switching rate unit connects.
8. circuit according to claim 1-6, which is characterized in that the clipping control unit includes: that clipping is put
Big device, the first build-out resistor and the second build-out resistor；
Wherein, the first input end of the limiting amplifier respectively with the first output end of the switching rate unit and described
The first end of one build-out resistor connects, and the second end of first build-out resistor connects reference voltage, the limiting amplifier
First output end is connect with the microprocessor；
Second input terminal of the limiting amplifier respectively with the second output terminal of the switching rate unit and second described
First end connection with resistance, the second end of second build-out resistor connect the reference voltage, the limiting amplifier
Second output terminal is connect with the microprocessor.
9. a kind of optical module characterized by comprising microprocessor and such as described in any item optical modules of claim 1-8
Receive circuit.
10. a kind of communication equipment characterized by comprising optical module as claimed in claim 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811075376.3A CN108964768A (en) | 2018-09-14 | 2018-09-14 | Optical module receives circuit, optical module and communication equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811075376.3A CN108964768A (en) | 2018-09-14 | 2018-09-14 | Optical module receives circuit, optical module and communication equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113364524A (en) * | 2020-03-06 | 2021-09-07 | 青岛海信宽带多媒体技术有限公司 | Data receiving method and optical module |
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| CN101848033A (en) * | 2010-04-28 | 2010-09-29 | 成都优博创技术有限公司 | Dual-rate receiving device |
| CN102710333A (en) * | 2012-07-02 | 2012-10-03 | 北京邮电大学 | Full-duplex wired/wireless hybrid access method and system based on passive optical network (PON)/RoF |
| CN106506094A (en) * | 2016-12-02 | 2017-03-15 | 青岛海信宽带多媒体技术有限公司 | Optical module and optical signal receiving circuit |
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2018
- 2018-09-14 CN CN201811075376.3A patent/CN108964768A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848033A (en) * | 2010-04-28 | 2010-09-29 | 成都优博创技术有限公司 | Dual-rate receiving device |
| CN102710333A (en) * | 2012-07-02 | 2012-10-03 | 北京邮电大学 | Full-duplex wired/wireless hybrid access method and system based on passive optical network (PON)/RoF |
| CN106506094A (en) * | 2016-12-02 | 2017-03-15 | 青岛海信宽带多媒体技术有限公司 | Optical module and optical signal receiving circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113364524A (en) * | 2020-03-06 | 2021-09-07 | 青岛海信宽带多媒体技术有限公司 | Data receiving method and optical module |
| CN113364524B (en) * | 2020-03-06 | 2022-06-28 | 青岛海信宽带多媒体技术有限公司 | Data receiving method and optical module |
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