CN106506094A - Optical module and optical signal receiving circuit - Google Patents
Optical module and optical signal receiving circuit Download PDFInfo
- Publication number
- CN106506094A CN106506094A CN201611094937.5A CN201611094937A CN106506094A CN 106506094 A CN106506094 A CN 106506094A CN 201611094937 A CN201611094937 A CN 201611094937A CN 106506094 A CN106506094 A CN 106506094A
- Authority
- CN
- China
- Prior art keywords
- signal
- selector switch
- optical signal
- rate
- speed selector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The embodiment of the present application discloses a kind of optical module and optical signal receiving circuit.Institute's optical signal receiving circuit includes：Uplink optical signal for receiving burst upstream optical signal, and is converted into the signal of telecommunication by light-receiving secondary module, and uplink optical signal includes high rate optical signal and low rate optical signal；Speed selector switch, its electric signal input end is connected with the electrical signal of light-receiving secondary module, for selecting control signal according to the speed of control unit, the electric signal output that light-receiving secondary module module is exported is to two-forty signal limiting amplifier or low-rate signal limiting amplifier；Two-forty limiting amplifier, its input are connected with the outfan of speed selector switch；Low rate limiting amplifier, its input are connected with the outfan of speed selector switch.Technical scheme provided herein can largely improve the sensitivity of XG PON1 and XGS PON dual-rate optical signal uplink receivings.
Description
Technical field
The present invention relates to technical field of photo communication, more particularly to a kind of optical module and optical signal receiving circuit.
Background technology
With the fast development of the technology such as cloud computing, HD video and virtual reality, user bandwidth is also skyrocketed through, according to
Nielsen laws, often crossing 7 years bandwidth demands all can increase an order of magnitude, and existing access network technology needs constantly to be upgraded
With the bandwidth that adapts to increase and technical requirements.Based on point-to-multipoint topology PON (Passive Optical Network, passive
Fiber optic network) network is current Mainstream Broadband access technology, the PON technology of higher rate is just progressively becoming industry research heat
Point.Even to this day, a series of industry standards of PON technology are issued, specification detailed technical parameter and index, main wrap
Include ieee standard and ITU standards.In ieee standard system, EPON (Ethernet Passive Optical Network, ether
Net EPON) evolve to 10G-EPON after, symmetrical 10G-EPON is increasingly becoming main flow, and continues to evolve to more high bandwidth
Single wavelength and multi-wavelength technology.ITU standards systems are proposing XG-PON1 (asymmetric 10 gigabit passive optical network) technology
Afterwards, and by asymmetrical XG-PON1 symmetrical XGS-PON (symmetrical 10 gigabit passive optical network) is progressively evolved to.
Wherein the downstream wavelength of XG-PON1 is 1577nm, and downstream rate is 9.953Gbps, and upstream wavelength is 1270nm, on
Scanning frequency rate 2.488 is Gbps；The downstream wavelength of XGS-PON is 1577nm, and downstream rate is 9.953Gbps, and upstream wavelength is
1270nm, upstream rate are 9.953Gbps.Newest XGS-PON standards propose what a kind of XG-PON1 and XGS-PON coexisted
Scheme, as both downstream wavelengths are identical, speed is also identical, therefore directly can be multiplexed；Although but both upstream wavelengths
Also identical, upstream rate but and is differed, and is to realize that both coexist, is had two kinds of typical cases on the optical signal receiving circuit of optical module
Way, the first is XGS-PON and XG-PON1 in identical golden finger to output, and second is XGS-PON and XG-PON1
In different golden fingers to output.
Fig. 1 is the theory diagram of 9.953Gbps signals and 2.488Gbps signals in identical golden finger to output.Fig. 1
In, optical signal is converted to the signal of telecommunication after passing through ROSA (Receiver Optical Subassembly, light-receiving secondary module), by
LIA (Limit-amplitude Amplifier, limiting amplifier) export, between ROSA and LIA be by R1, R2, L3, L4 with
And the reset circuit of coupled capacitor C1 and C2 compositions, comprising TIA, (Tranimpedance Amplifier, put wherein ROSA across resistance
Big device).Although the optical signal of two speed of scheme 9.953Gbps shown in Fig. 1 and 2.488Gbps can be received, in order to ensure
Link has enough bandwidth to receive the optical signal of 9.953Gbps, needs the LIA for selecting 10G bandwidth.The high frequency characteristics of 10G LIA
Good, but low-frequency cutoff is high, and the optical signal of 2.488Gbps is running into CID (Consecutive Identical Digit, continuous phase
Same amount of bits) when, lower frequency component can be produced, due to the low-frequency cut-off characteristic of 10G LIA, these low frequencies point
Amount be likely to cannot by and cause optical signal error code, cause 2.488Gbps optical signal uplink receivings index deteriorate and sensitive
Degree deterioration.
In order to solve this problem, prior art proposes second by two speed of 9.953Gbps and 2.488Gbps
Signal separates, in method of the different golden fingers to exporting.This method has three kinds of typical implementations：Electric offshoot program, single
End scheme and three lines put scheme.
Fig. 2 is the theory diagram of electric offshoot program.Between ROSA and LIA, the signal of telecommunication is directly split into two-way, difference is defeated
Go out to the LIA (being abbreviated as 2.5G LIA) of the LIA of 10G bandwidth (being abbreviated as 10G LIA) and 2.5G bandwidth.Although the program can be with
Realize the output of 9.953Gbps and 2.488Gbps signals, but the segmentation due to the signal of telecommunication, electrical signal amplitude can be lost, be caused
Be actually reached little when the electrical signal amplitude of two LIA is all directly output to LIA compared with ROSA, cause 9.953Gbps and
The deterioration of 2.488Gbps optical signal uplink receiving sensitivity.
Theory diagrams of the Fig. 3 for single-ended scheme.ROSA output the signal of telecommunication, be divided into two single-ended signals input to 10G and
The LIA of 2.5G.Although the program is able to ensure that the complete of the signal amplitude that is input to LIA, but the anti-interference energy of single-ended signal
Power is poor, is easily affected by external environment, and the wherein crosstalk from optical module transmitting terminal is easier to cause uplink receiving sensitive
The deterioration of degree.
Fig. 4 is the theory diagram that three limits put scheme.This scheme increases 10G a LIA, ROSA between ROSA and LIA
The signal of telecommunication of output is first amplified by a 10G LIA after coupled capacitor C1 and C2, then is exported to the 10G LIA of rear class
With 2.5G LIA.Due to the effect of first order 10GLIA, although the program can improve 9.953Gbps optical signal uplink receivings
Sensitivity, but there is a congenital drawback, i.e. signal after by first order amplifier, low frequency component can be lost, be caused
The deterioration of 2.488Gbps optical signal uplink receiving sensitivity.
Content of the invention
For overcoming the problem of dual-rate optical signal uplink receiving poor sensitivity in correlation technique, the application to provide a kind of optical mode
Block and optical signal receiving circuit.
According to the first aspect of the embodiment of the present application, there is provided a kind of optical signal receiving circuit, including：
Light-receiving secondary module, the light-receiving secondary module receive uplink optical signal, and the uplink optical signal is converted into
The signal of telecommunication, the uplink optical signal include high rate optical signal and low rate optical signal.Wherein, if pressing XGS-PON and XG-PON1
Standard, high rate optical signal are 9.953Gbps optical signals, and low rate optical signal is 2.488Gbps optical signals；
Speed selector switch, the signal of telecommunication of the electric signal input end of the speed selector switch and the light-receiving secondary module
Outfan connects, for selecting control signal according to the speed of control unit, the electricity that the light-receiving secondary module module is exported
To two-forty signal limiting amplifier or low rate limiting amplifier, the speed selects control signal according to institute to signal output
The species for stating uplink optical signal determines and exports to the speed selector switch that described control unit is MAC chips or optical mode
The microcontroller of block.Wherein, if corresponding to 9.953Gbps optical signals and 2.488Gbps optical signals, the two-forty signal amplitude limit
Amplifier is 10G limiting amplifiers, and the low-rate signal limiting amplifier is 2.5G limiting amplifiers；
Two-forty signal limiting amplifier, the input of the two-forty signal limiting amplifier select to open with the speed
The outfan connection of pass；
Low-rate signal limiting amplifier, the input of the low-rate signal limiting amplifier select to open with the speed
The outfan connection of pass.
In a kind of possible design, the electrical signal of the light-receiving secondary module is by termination power and the speed
The electric signal input end connection of rate selecting switch, the termination power are used for the signal of telecommunication for exporting the light-receiving secondary module,
Exported in the way of AC coupled to the electric signal input end of the speed selector switch.
In a kind of possible design, the outfan of the speed selector switch is by two-forty signal reset circuit and institute
The input connection of two-forty limiting amplifier is stated, the outfan of the speed selector switch passes through low-rate signal reset circuit
It is connected with the input of the low rate limiting amplifier.
In a kind of possible design, the outfan of the speed selector switch is by low-pass filter circuit and the low speed
Rate signal reset circuit connects.
According to the second aspect of the embodiment of the present application, there is provided a kind of optical module, including：
Light-receiving secondary module, the light-receiving secondary module receive burst upstream optical signal, and the uplink optical signal is turned
The signal of telecommunication is turned to, the uplink optical signal includes high rate optical signal and low rate optical signal；
Speed selector switch, the signal of telecommunication of the electric signal input end of the speed selector switch and the light-receiving secondary module
Outfan connects, for selecting control signal according to the speed of control unit, the signal of telecommunication that the light-receiving secondary module is exported
Export to two-forty limiting amplifier or low rate limiting amplifier, the speed selects control signal according to the up light
The species of signal determines that described control unit is the microcontroller of MAC chips or optical module；
Two-forty signal limiting amplifier, the input of the 10G limiting amplifiers are defeated with the speed selector switch
Go out end connection；
Low-rate signal limiting amplifier, the input of the 2.5G limiting amplifiers are defeated with the speed selector switch
Go out end connection.
Described control unit can be the MAC chips outside optical module, by connect circuit be connected with optical module, come to
Speed selector switch transmission rate in optical module selects control signal.In a kind of possible design, the optical module includes
Described control unit, described control unit are connected with the speed selector switch, for the species according to the uplink optical signal
Determine that speed selects control signal, and to speed selector switch output speed selection control signal, described control unit is
Microcontroller.
In a kind of possible design, the electrical signal of the light-receiving secondary module is by termination power and the speed
The electric signal input end connection of rate selecting switch, the termination power are used for the signal of telecommunication for exporting the light-receiving secondary module,
Exported in the way of AC coupled to the electric signal input end of the speed selector switch.
In a kind of possible design, the outfan of the speed selector switch is by high-frequency signal reset circuit and institute
The input connection of altofrequency limiting amplifier is stated, the outfan of the speed selector switch passes through low-frequency signals reset circuit
It is connected with the input of the low frequency limiting amplifier.
In a kind of possible design, the outfan of the speed selector switch is by low-pass filter circuit and the low speed
Rate signal reset circuit connects.
Dual-rate optical signal is separated using two LIA and is exported by the optical signal receiving circuit that the embodiment of the present application is provided,
Wherein, two-forty signal LIA corresponds to high rate optical signal, and low-rate signal LIA corresponds to low rate optical signal, specifically,
XGS-PON and XG-PON1 standards is pressed, two-forty LIA is 10G LIA, corresponding to 9.953Gbps optical signals, low-rate signal LIA
For 2.5G LIA, corresponding to 2.488Gbps optical signals, therefore letter will not be lost because of the low-frequency cutoff of LIA or high-frequency cut-off
Number component；And between ROSA and LIA, add the speed selector switch of high speed, speed selector switch to select control according to speed
Signal switching high rate optical signal output channels and low rate optical signal output channel, the speed select control signal according to
The species of the uplink optical signal of ROSA inputs determines, if uplink optical signal is high rate optical signal, speed selects control signal
For making speed selector switch connect high rate optical signal output channels, if uplink optical signal is low rate optical signal, speed is selected
Control signal is selected for making speed selector switch connect low rate optical signal output channel, so a speed is only exported in synchronization
The corresponding signal of telecommunication of rate optical signal and do not exist the signal of telecommunication segmentation, so as to ROSA receive signal almost can transmit without loss
LIA is arrived, and the crosstalk between XGS-PON and XG-PON1 circuits can be avoided；In addition, the signal of telecommunication of ROSA outputs is believed with difference
Number form input to the LIA of two-forty signal and low-rate signal respectively, capacity of resisting disturbance is high, can avoid optical mode block signal
The uplink receiving sensitivity deterioration that transmitting terminal crosstalk and external environment cause.Summary technique effect, provided herein
Technical scheme can greatly improve the sensitivity of XG-PON1 and dual-rate optical signal uplink receiving under XGS-PON Coexistence Situations.
It should be appreciated that above general description and detailed description hereinafter are only exemplary and explanatory, not
The application can be limited.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the theory diagram of 9.953Gbps signals and 2.488Gbps signals in identical golden finger to output.
Fig. 2 is the theory diagram of electric offshoot program.
Theory diagrams of the Fig. 3 for single-ended scheme.
Fig. 4 is the theory diagram that three limits put scheme.
Principle framework figures of the Fig. 5 for the application optical signal receiving circuit.
Fig. 6 is one exemplary plot of the application optical signal receiving circuit.
Fig. 7 is another exemplary plot of the application optical signal receiving circuit.
Fig. 8 is one exemplary plot of the application optical module.
Specific embodiment
Here in detail exemplary embodiment will be illustrated, its example is illustrated in the accompanying drawings.Explained below is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.Conversely, they be only with as appended by
The example of consistent apparatus and method in terms of some that described in detail in claims, the application.
For comprehensive understanding the application, numerous concrete details are refer in the following detailed description, but this area skill
Art personnel are it should be understood that the application can be realized without the need for these details.In other embodiments, it is not described in detail known
Method, process, component and circuit, in order to avoid undesirably result in embodiment obscure.
The principle of the application, is each gold to output by XGS-PON and the optical signal of XG-PON1 in different golden fingers
Finger is to a corresponding LIA, that is, is amplified the signal that ROSA is exported using two LIA, and exports to SerDes
(SERializer/DESerializer, serializer/de-serializers), wherein two-forty signal LIA (such as 10G LIA) are conducive to
The integrity of high rate optical signal (9.953Gbps optical signals), low-rate signal LIA (2.5G LIA) is kept to be conducive to keeping low
The integrity of rate optical signal (2.488Gbps optical signals)；For improving the sensitivity of uplink receiving, increase between ROSA and LIA
Rate of acceleration selecting switch, speed selector switch select control signal switched conductive path, the speed according to the speed of control unit
Rate selects control signal to be determined according to the species of uplink optical signal, if uplink optical signal is high rate optical signal, speed is selected
Control signal is the signal for making switch conduction ROSA and two-forty signal LIA, if uplink optical signal is low rate optical signal, speed
It is the signal for making switch conduction ROSA and low rate LIA that rate selects control signal, by introducing the speed selector switch of high speed, keeps away
Exempt from signal of telecommunication segmentation, synchronization ROSA is only connected with 1 LIA, it is ensured that the signal that ROSA is received can be delivered to without loss
LIA, and the crosstalk between XGS-PON and XG-PON1 circuits is avoided, so as to improve the sensitivity of uplink receiving, and this Shen
Please in a differential manner rather than single-ended signal mode is by the signal output of ROSA to LIA, the capacity of resisting disturbance of optical module, phase are improve
The optimization of uplink receiving sensitivity is also beneficial to answering.Below with XGS-PON and XG-PON1 Coexistence Situations under, uplink optical signal
As a example by for 9.953Gbps optical signals and 2.488Gbps optical signals, in conjunction with accompanying drawing, the technical side provided by the embodiment of the present application
Case is illustrated.
Principle framework figures of the Fig. 5 for the application optical signal receiving circuit, as shown in figure 5, the optical signal receiving circuit, bag
Include：
Light-receiving secondary module ROSA, the light-receiving secondary module receive burst upstream optical signal, and the up light is believed
Number it is converted into the optical signal of the signal of telecommunication, optical signal of the uplink optical signal comprising 9.953Gbps and 2.488Gbps；
Speed selector switch, the signal of telecommunication of the electric signal input end of the speed selector switch and the light-receiving secondary module
Outfan connects, for selecting control signal according to the speed of control unit, the electricity that the light-receiving secondary module module is exported
To 10G limiting amplifiers or 2.5G limiting amplifiers, the speed selects control signal according to the up light to signal output
The species of signal determines；
10G limiting amplifiers, the input of the 10G limiting amplifiers are connected with the outfan of the speed selector switch
Connect；
2.5G limiting amplifiers, the input of the 2.5G limiting amplifiers are connected with the outfan of the speed selector switch
Connect.
Specifically, exemplary plots of the Fig. 6 for the application optical signal receiving circuit, as shown in fig. 6, speed selector switch can be with
The electric signal input end of switch element U1 and U2, U1 and U2 and the electrical signal of ROSA including two single-pole double throws connects
Connect.Termination power can be added between U1/U2 and ROSA, in the exemplary plot shown in Fig. 6, termination power be outfan with couple
Electric capacity C1 and C2 connect, by AC coupled of the C1 and C2 to the signal of telecommunication that ROSA is exported, it is possible to achieve level match so that
The signal of telecommunication of ROSA outputs is mated with the signal of telecommunication for reaching U1/U2, removes DC component.
U1 and U2 receives speed selection control signal (the Rate-Select signals in Fig. 6) from control unit, described
Speed selects control signal to preset, and for example, if U1 and U2 turns on A and B when receiving high level signal, receives low level signal
When turn on A and C, then control signal is selected with the corresponding two-forty of high level signal, control is selected with the corresponding low rate of low level signal
Signal processed, when control unit determine receive when being 9.953Gbps optical signals, send high level signal to U1 and U2, then U1
With U2 turn on A and B, so as to connect ROSA and 10G LIA, when control unit determine receive when being 2.488Gbps speed, to
U1 and U2 send low level signal, then U1 and U2 conductings A and C, so as to connect ROSA and 2.5G LIA.
Wherein, described control unit can be the MAC chips being connected with optical module, in the MAC chips and optical module
Speed selector switch connects, and the species according to the uplink optical signal of launch party's transmitting determines that speed selects control signal, then defeated
Go out to speed selector switch；Described control unit can also be the MCU (microcontroller) in optical module, and MCU is connect according to optical module
The species of the uplink optical signal of receipts determines that speed selects control signal, is then output to the speed selector switch being connected.
Another exemplary plots of the Fig. 7 for the application optical signal receiving circuit, the difference of Fig. 7 and Fig. 6 are two hilted broadswords pair
Throw switch is integrated in an element, and when control unit transmission is when being two-forty selection control signal, the speed selects to open
Conducting A and B, and D and E is closed, ROSA and 10G LIA are connected；When control unit transmission is when being low rate selection control signal,
The speed selector switch turns on A and C, and D and F, connects ROSA and 2.5G LIA.
Between ROSA and 10G LIA, and reset circuit can be added between ROSA and 2.5G LIA, generally be resetted
Circuit is all needs, to guarantee that circuit stability reliably works.10G signals in Fig. 6 and Fig. 7, between ROSA and 10G LIA
Reset circuit is made up of R1, R2, L3, L4 and coupled capacitor C3, C5, by the reset terminal Vref10 of L3/L4 and 10G LIA during reset
Conducting, realizes resetting, and the non-reset stage disconnects L3/L4 and Vref10, and R1/R2 is connected with Vref10, believes 9.953Gbps light
Number signal of telecommunication being converted into is passed through；2.5G signals reset circuit between ROSA and 2.5GLIA is by R3, R4, L5, L6 and coupling
Electric capacity C4, C6 composition is closed, the reset terminal Vref2 of L5/L6 and 2.5G LIA is turned on during reset, realize resetting, the non-reset stage
L5/L6 and Vref2 is disconnected, R3/R4 is connected with Vref2, now C4*R3/C6*R4 can obtain a larger numerical value, drop
The low-frequency cut-off frequency on low pass road, the signal of telecommunication for being converted into 2.488Gbps optical signals are passed through.
Low-pass filter circuit, low pass can be added between the outfan and 2.5G signal reset circuits of speed selector switch
Filter circuit can filter out the high fdrequency components in the signal of telecommunication of ROSA outputs, so as to improve the reception of 2.488Gbps signal uplinks
Sensitivity.In Fig. 6 and Fig. 7, increase inductance L1 and L2, L1 and mono- group of C4, and L2 and C6 before electric capacity C4 and C6 respectively
One group, respectively constitute a low pass filter.This mode actually also using electric capacity in reset circuit to constitute low pass filtered
Ripple device, technical staff can not also use the capacity cell in reset circuit, and be added to speed using independent low pass filter
Between the outfan of rate selecting switch and 2.5G signal reset circuits.
Optical signal receiving circuit provided herein can be used as a part for optical module, the optical signal receiving circuit
Using two LIA, dual-rate optical signal is separated and is exported, wherein 10G LIA correspond to 9.953Gbps optical signals, 2.5G
LIA corresponds to 2.488Gbps optical signals, and adds the speed selector switch of high speed, speed selector switch between ROSA and LIA
Select control signal switching 9.953Gbps optical signals output channel and 2.488Gbps optical signals defeated according to the speed of control unit
Go out passage.So, the optical signal of each speed corresponds to special LIA, will not be because of the low-frequency cutoff of LIA or high-frequency cut-off
Loss component of signal, and there is no signal of telecommunication segmentation, so as to the signal that ROSA is received can be delivered to LIA without loss, and
And the crosstalk that can avoid between XGS-PON and XG-PON1 circuits；In addition, the signal of telecommunication of ROSA outputs is believed with two difference
Number form input to the LIA of 10G and 2.5G respectively, the amplitude of the signal that can not only keep being input to LIA is complete, Er Qiekang
Interference performance is high, it is to avoid the uplink receiving sensitivity deterioration that the crosstalk of signal transmitting terminal and external environment cause.In sum, originally
The optical signal receiving circuit provided by application embodiment can greatly improve uplink receiving under dual-rate optical signal Coexistence Situation
Capacity of resisting disturbance and sensitivity.
The application also protects a kind of optical module, the optical module to include above-mentioned optical signal receiving circuit, specifically, the light
Module can include：
Light-receiving secondary module ROSA, the light-receiving secondary module receive burst upstream optical signal, and the up light is believed
Number it is converted into the optical signal of the signal of telecommunication, optical signal of the uplink optical signal comprising 9.953Gbps and 2.488Gbps；
Speed selector switch, the signal of telecommunication of the electric signal input end of the speed selector switch and the light-receiving secondary module
Outfan connects, for selecting control signal according to the speed of control unit, the electricity that the light-receiving secondary module module is exported
To 10G limiting amplifiers or 2.5G limiting amplifiers, the speed selects control signal according to the up light to signal output
The species of signal determines；
10G limiting amplifiers, the input of the 10G limiting amplifiers are connected with the outfan of the speed selector switch
Connect；
2.5G limiting amplifiers, the input of the 2.5G limiting amplifiers are connected with the outfan of the speed selector switch
Connect.
The optical module can also include control unit, as shown in figure 8, described control unit can be MCU
(Microcontroller Unit, micro-control unit), is connected with the speed selector switch, for selecting to open to the speed
Close output speed and select control signal.The optical module can not also include that described control unit, described control unit pass through light
Module external connection mouth and connection circuit are connected with the speed selector switch, and described control unit can be in this case
MAC chips.Described control unit judges the species of uplink optical signal after optical module receives uplink optical signal；Further according to institute
The species for stating uplink optical signal determines that speed selects control signal, and such as uplink optical signal is high rate optical signal, it is determined that speed
It is the control signal for making speed selector switch turn on two-forty signal output channel that rate selects control signal, on the contrary if up light letter
Number be low rate optical signal, it is determined that speed select control signal for make speed selector switch turn on low-rate signal output channel
Control signal；Then speed selection control signal is sent to speed selector switch by control unit again.
Wherein, the electrical signal of the light-receiving secondary module can pass through termination power and the speed selector switch
Electric signal input end connection, the termination power be used for by the light-receiving secondary module export the signal of telecommunication, with AC coupled
Mode export to the electric signal input end of the speed selector switch.
Wherein, the outfan of the speed selector switch is by 10G signals reset circuit and the 10G limiting amplifiers
Input connects, and the outfan of the speed selector switch is by 2.5G signals reset circuit and the 2.5G limiting amplifiers
Input connects.The reset circuit is generally all needs, to ensure stablizing for circuit.
Wherein, the outfan of the speed selector switch can pass through low-pass filter circuit with 2.5G signals reset electricity
Road connects.
It should be noted that herein, such as term " including ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that a series of process, method, article or equipment including key elements not only includes that those will
Element, but also other key elements including being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The above is only the specific embodiment of the application, makes skilled artisans appreciate that or realizing this Shen
Please.Multiple modifications of these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in the case of without departing from scope of the present application in other embodiments.Therefore, the application will not
Be intended to be limited to the embodiments shown herein, and be to fit to consistent with principles disclosed herein and features of novelty most
Wide scope.
Claims (8)
1. a kind of optical signal receiving circuit, it is characterised in that include：
Light-receiving secondary module, the light-receiving secondary module receive uplink optical signal, and the uplink optical signal is converted into telecommunications
Number, the uplink optical signal includes high rate optical signal and low rate optical signal；
Speed selector switch, the electric signal output of the electric signal input end of the speed selector switch and the light-receiving secondary module
End connection, for selecting control signal according to the speed of control unit, the signal of telecommunication that the light-receiving secondary module module is exported
Export to two-forty signal limiting amplifier or low-rate signal limiting amplifier, the speed selects control signal by described
Control unit determines according to the species of the uplink optical signal and exports to the speed selector switch that described control unit is
MAC chips or the microcontroller of optical module；
Two-forty signal limiting amplifier, the input of the two-forty signal limiting amplifier and the speed selector switch
Outfan connects；
Low-rate signal limiting amplifier, the input of the low-rate signal limiting amplifier and the speed selector switch
Outfan connects.
2. optical signal receiving circuit as claimed in claim 1, it is characterised in that the electric signal output of the light-receiving secondary module
End is connected with the electric signal input end of the speed selector switch by termination power, and the termination power is used for connecing the light
The signal of telecommunication of secondary module output is received, is exported in the way of AC coupled to the electric signal input end of the speed selector switch.
3. optical signal receiving circuit as claimed in claim 1, it is characterised in that the outfan of the speed selector switch passes through
Two-forty signal reset circuit is connected with the input of the two-forty limiting amplifier, the outfan of the speed selector switch
It is connected with the input of the low rate limiting amplifier by low-rate signal reset circuit.
4. the optical signal receiving circuit as described in claim 1 or 3, it is characterised in that the outfan of the speed selector switch
It is connected with the low-rate signal reset circuit by low-pass filter circuit.
5. a kind of optical module, it is characterised in that include：
Light-receiving secondary module, the light-receiving secondary module receive burst upstream optical signal, and the uplink optical signal is converted into
The signal of telecommunication, the uplink optical signal include high rate optical signal and low rate optical signal；
Speed selector switch, the electric signal output of the electric signal input end of the speed selector switch and the light-receiving secondary module
End connection, for selecting control signal according to speed, the electric signal output that the light-receiving secondary module is exported to two-forty is believed
Number limiting amplifier or low-rate signal limiting amplifier, the speed select control signal according to the uplink optical signal
Species determines that described control unit is the microcontroller of MAC chips or optical module；
Two-forty signal limiting amplifier, the input of the two-forty signal limiting amplifier and the speed selector switch
Outfan connects；
Low-rate signal limiting amplifier, the input of the low-rate signal limiting amplifier and the speed selector switch
Outfan connects.
6. optical module as claimed in claim 5, it is characterised in that the electrical signal of the light-receiving secondary module passes through coupling
Close circuit to be connected with the electric signal input end of the speed selector switch, the termination power is used for the light-receiving secondary module
The signal of telecommunication of output, is exported to the electric signal input end of the speed selector switch in the way of AC coupled.
7. optical module as claimed in claim 5, it is characterised in that the outfan of the speed selector switch is believed by two-forty
Number reset circuit is connected with the input of the two-forty limiting amplifier, and the outfan of the speed selector switch is by a high speed
Rate signal reset circuit is connected with the input of the low rate limiting amplifier.
8. the optical module as described in claim 5 or 7, it is characterised in that the outfan of the speed selector switch passes through low pass
Filter circuit is connected with the low-rate signal reset circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611094937.5A CN106506094A (en) | 2016-12-02 | 2016-12-02 | Optical module and optical signal receiving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611094937.5A CN106506094A (en) | 2016-12-02 | 2016-12-02 | Optical module and optical signal receiving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106506094A true CN106506094A (en) | 2017-03-15 |
Family
ID=58330379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611094937.5A Pending CN106506094A (en) | 2016-12-02 | 2016-12-02 | Optical module and optical signal receiving circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106506094A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294614A (en) * | 2017-07-27 | 2017-10-24 | 青岛海信宽带多媒体技术有限公司 | The signal output method of optical module and optical module |
| CN107332626A (en) * | 2017-07-05 | 2017-11-07 | 青岛海信宽带多媒体技术有限公司 | A kind of burst luminous signal receiving circuit and optical module |
| CN108882062A (en) * | 2018-05-29 | 2018-11-23 | 烽火通信科技股份有限公司 | A kind of passive optical network asymmetric system and its management method |
| CN108964768A (en) * | 2018-09-14 | 2018-12-07 | 青岛海信宽带多媒体技术有限公司 | Optical module receives circuit, optical module and communication equipment |
| CN109495184A (en) * | 2018-12-17 | 2019-03-19 | 青岛海信宽带多媒体技术有限公司 | A kind of optical module |
| CN109889271A (en) * | 2019-01-16 | 2019-06-14 | 武汉恒泰通技术有限公司 | A kind of frequency conversion scrambling code optical module and implementation method |
| CN111556384A (en) * | 2020-04-24 | 2020-08-18 | 东莞铭普光磁股份有限公司 | Optical module receiving circuit and optical module |
| CN111919402A (en) * | 2019-01-03 | 2020-11-10 | 华为技术有限公司 | Optical communication device, optical line terminal and optical communication processing method |
| CN111935564A (en) * | 2020-07-03 | 2020-11-13 | 华为技术有限公司 | Line card, optical module and optical line terminal |
| CN113472449A (en) * | 2021-08-11 | 2021-10-01 | 青岛海信宽带多媒体技术有限公司 | Optical module and signal polarity definition method |
| WO2024007839A1 (en) * | 2022-07-07 | 2024-01-11 | 华为技术有限公司 | Optical communication method, olt, optical module, optical communication system, and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101355388A (en) * | 2007-07-25 | 2009-01-28 | 华为技术有限公司 | Receiving apparatus and method |
| CN101848033A (en) * | 2010-04-28 | 2010-09-29 | 成都优博创技术有限公司 | Dual-rate receiving device |
| CN102104431A (en) * | 2011-01-19 | 2011-06-22 | 成都优博创技术有限公司 | Dual-rate receiving device in optical transceiver |
| CN202856928U (en) * | 2012-09-29 | 2013-04-03 | 广州市中奕通讯设备有限公司 | Multi-rate universal EPON transmission device |
| CN103178905A (en) * | 2013-03-11 | 2013-06-26 | 青岛海信宽带多媒体技术有限公司 | Optical module and burst-mode optical signal receiving circuit thereof |
| CN105611433A (en) * | 2015-09-23 | 2016-05-25 | 烽火通信科技股份有限公司 | Method of realizing single-wavelength dual-rate PMD layer and PMD module |
| WO2016139851A1 (en) * | 2015-03-04 | 2016-09-09 | 住友電気工業株式会社 | Data reception device |
-
2016
- 2016-12-02 CN CN201611094937.5A patent/CN106506094A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101355388A (en) * | 2007-07-25 | 2009-01-28 | 华为技术有限公司 | Receiving apparatus and method |
| CN101848033A (en) * | 2010-04-28 | 2010-09-29 | 成都优博创技术有限公司 | Dual-rate receiving device |
| CN102104431A (en) * | 2011-01-19 | 2011-06-22 | 成都优博创技术有限公司 | Dual-rate receiving device in optical transceiver |
| CN202856928U (en) * | 2012-09-29 | 2013-04-03 | 广州市中奕通讯设备有限公司 | Multi-rate universal EPON transmission device |
| CN103178905A (en) * | 2013-03-11 | 2013-06-26 | 青岛海信宽带多媒体技术有限公司 | Optical module and burst-mode optical signal receiving circuit thereof |
| WO2016139851A1 (en) * | 2015-03-04 | 2016-09-09 | 住友電気工業株式会社 | Data reception device |
| CN105611433A (en) * | 2015-09-23 | 2016-05-25 | 烽火通信科技股份有限公司 | Method of realizing single-wavelength dual-rate PMD layer and PMD module |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332626A (en) * | 2017-07-05 | 2017-11-07 | 青岛海信宽带多媒体技术有限公司 | A kind of burst luminous signal receiving circuit and optical module |
| CN107294614A (en) * | 2017-07-27 | 2017-10-24 | 青岛海信宽带多媒体技术有限公司 | The signal output method of optical module and optical module |
| CN108882062A (en) * | 2018-05-29 | 2018-11-23 | 烽火通信科技股份有限公司 | A kind of passive optical network asymmetric system and its management method |
| CN108882062B (en) * | 2018-05-29 | 2021-06-15 | 烽火通信科技股份有限公司 | Passive optical network asymmetric system and management method thereof |
| CN108964768A (en) * | 2018-09-14 | 2018-12-07 | 青岛海信宽带多媒体技术有限公司 | Optical module receives circuit, optical module and communication equipment |
| CN109495184A (en) * | 2018-12-17 | 2019-03-19 | 青岛海信宽带多媒体技术有限公司 | A kind of optical module |
| CN109495184B (en) * | 2018-12-17 | 2021-08-10 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN111919402A (en) * | 2019-01-03 | 2020-11-10 | 华为技术有限公司 | Optical communication device, optical line terminal and optical communication processing method |
| CN111919402B (en) * | 2019-01-03 | 2022-01-11 | 华为技术有限公司 | Optical communication device, optical line terminal and optical communication processing method |
| US11515943B2 (en) | 2019-01-03 | 2022-11-29 | Huawei Technologies Co., Ltd. | Optical communications apparatus, optical line termination, and optical communication processing method |
| CN109889271B (en) * | 2019-01-16 | 2020-08-11 | 武汉恒泰通技术有限公司 | Variable frequency scrambling optical module and implementation method |
| CN109889271A (en) * | 2019-01-16 | 2019-06-14 | 武汉恒泰通技术有限公司 | A kind of frequency conversion scrambling code optical module and implementation method |
| CN111556384A (en) * | 2020-04-24 | 2020-08-18 | 东莞铭普光磁股份有限公司 | Optical module receiving circuit and optical module |
| CN111935564A (en) * | 2020-07-03 | 2020-11-13 | 华为技术有限公司 | Line card, optical module and optical line terminal |
| CN111935564B (en) * | 2020-07-03 | 2022-08-19 | 华为技术有限公司 | Line card, optical module and optical line terminal |
| CN113472449A (en) * | 2021-08-11 | 2021-10-01 | 青岛海信宽带多媒体技术有限公司 | Optical module and signal polarity definition method |
| WO2024007839A1 (en) * | 2022-07-07 | 2024-01-11 | 华为技术有限公司 | Optical communication method, olt, optical module, optical communication system, and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106506094A (en) | Optical module and optical signal receiving circuit | |
| CN101848033B (en) | Dual-rate receiving device | |
| JP4819882B2 (en) | Method and system for reducing Raman crosstalk in an Ethernet passive optical network | |
| CN102104431B (en) | Dual-rate receiving device in optical transceiver | |
| US8503891B2 (en) | Multirate burst mode receiver | |
| CN103763161A (en) | Tri-network integration access module and control method thereof | |
| CN108111229A (en) | A kind of optical module receiving circuit and optical module | |
| CN203747833U (en) | Optical module with light receiving signal alarming function | |
| CN107579781B (en) | Optical signal receiving module and optical signal transmitting/receiving device | |
| CN102497605B (en) | Receiver circuit for optical module and optical module | |
| CN104022832B (en) | A kind of difference A-C coupled modes optical signal receiving circuit | |
| CN208143224U (en) | A kind of optical network apparatus of integrated PON and RF | |
| CN107294614A (en) | The signal output method of optical module and optical module | |
| CN102075256B (en) | Improve method and the device of sensitivity of burst light receiver | |
| CN101951311B (en) | Sudden clock recovery method for dynamic optimal regulation at receiver in passive optical network | |
| CN207518605U (en) | A kind of Ethernet splitter based on FPGA controls | |
| CN201682594U (en) | Optical line terminal of gigabit passive light network | |
| CN107276673A (en) | A kind of optical module | |
| CN1921356B (en) | Radio-frequency optical transport module based on TD mode and synchronous control method | |
| CN108964768A (en) | Optical module receives circuit, optical module and communication equipment | |
| CN205160535U (en) | Optical receiver based on broadcasting and TV intelligent gateway system | |
| Guillory et al. | Multiservice & multiformat home network based on a low cost optical infrastructure | |
| CN111935564B (en) | Line card, optical module and optical line terminal | |
| Lin et al. | Scalability analysis methodology for passive optical interconnects in data center networks using PAM | |
| CN214205545U (en) | Optical modulation receiver topology circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170315 |
|
| RJ01 | Rejection of invention patent application after publication |