CN106130652A - Optical transmitter and transmission method - Google Patents
Optical transmitter and transmission method Download PDFInfo
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- CN106130652A CN106130652A CN201610474254.6A CN201610474254A CN106130652A CN 106130652 A CN106130652 A CN 106130652A CN 201610474254 A CN201610474254 A CN 201610474254A CN 106130652 A CN106130652 A CN 106130652A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 173
- 230000005540 biological transmission Effects 0.000 title claims abstract description 59
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- 230000011664 signaling Effects 0.000 claims description 28
- 238000012546 transfer Methods 0.000 claims description 12
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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
- H04B10/50—Transmitters
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres
-
- 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
Abstract
An optical transmitter and a transmission method. The method is used for transmitting a data signal and a control signal to an optical receiver of a target device by an optical transmitter, and comprises the following steps: providing a data signal within a first frequency band; providing a control signal in a second frequency band; combining the data signal in the first frequency band with the control signal in the second frequency band to generate a combined signal; and converting the combined signal into an output optical signal for transmission to the optical receiver, wherein the control signal is used to control the target device.
Description
Technical field
The present invention relates to the communication system that high-speed serial data connects, particularly to using communication system by optical cable and light
Learn the method that conveyer transmits data and control signal.
Background technology
Actively optical cable (active optical cable；AOC) being a Connectorized fiber optic cabling, each of which terminal has a plug,
This plug includes optical transceiver module, in order to electrical signals to be converted to optical signalling, and converts optical signals into electrically
Signal.
Nowadays communication networks more and more more uses actively optical cable to increase transmission range.But, owing to communication network is usual
Use substantial amounts of control signal and data signal to carry out the connection between each network and communication.Control signal is typically by volume
Outer copper cash or optical fiber transmission, so that the cost using actively optical cable to set up communication network is significantly increased.
Summary of the invention
The present invention discloses the embodiment of a kind of transfer approach, uses an optical transmitter, transmits data signal and controls letter
Number to an optical receiver of a destination apparatus, this transfer approach includes: provide the data signal in one first frequency band；Carry
For the control signal in one second frequency band；In conjunction with this data signal in this first frequency band and this control in this second frequency band
Signal processed, produces a binding signal；And this binding signal is converted to an output optical signalling to be sent to the reception of this optics
Device, wherein this control signal is used for controlling this destination apparatus.
The present invention discloses the embodiment of a kind of optical transmitter, and this optical transmitter is in order to transmit data signal and to control letter
Number to an optical receiver of a destination apparatus, and include that a control data converter, a colligator circuit and an electricity turn light
Device.Control data converter to depend on into multiple continuous waves (CW) signal, such continuous wave signal for changing a control signal
According to the multiple state of the difference of this control signal, there is different multiple preset frequency.Colligator circuit is coupled to control data conversion
Device, for combining the data signal in one first frequency band and such continuous wave signal, to produce a binding signal.Electricity turns light
Device is coupled to this colligator circuit, receives to be sent to this optics for binding signal is converted to an output optical signalling
Device.
Accompanying drawing explanation
The present invention can be fully understood, wherein by example described in detail below and accompanying drawing reference:
Fig. 1 is to show according to the block chart of optical communication system in embodiments of the invention；
Fig. 2 A is to show the circuit diagram according to light transmitting device in embodiments of the invention 2；
Fig. 2 B is to show the block chart of light transmitting device 2 according to another embodiment of the present invention；
Fig. 3 is to show the block chart according to optical receiver in embodiments of the invention 3；And
Fig. 4 is to show according to the flow chart of optical transmission method in embodiments of the invention.
[symbol description]
1～optical communication system；
2～light transmitting device；
3～optical receiver；
4～optical transmission method；
Dt1、Dt1’、Dt2、Dt2’～data message；
Sca、Sca’、Scb、Scb’～control information；
Sopt、Sopt1、Sopt2～optical signalling；
14a, 14b～optical cable；
Dt、Dt’、Dc10’、Dc11’～data signal；
Dtf～filtering data signal；
Dc1、Dc2、Sc1、Sc2～control signal；
Scomb～binding signal；
freqc10、freqc11、freqc20、freqc21～frequency；
NDC10、NDC11、NDC20、NDC21～preset frequency divider ratio；
10,12～optical transmission device；
24,100,122～optical transmitter；
102,120～optical receiver；
22,104,124～controller；
16～host apparatus；
18～destination apparatus；
20～colligator circuit；
200,202～switching device；
206,207～control data converter；
204～colligator；
210～high pass filter；
208～electricity turn electro-optical device；
212,214～frequency divider；
30～light turn electric installation；
32,34,36～wave filter；
S400, S402, S404, S406, S408, S410～step.
Detailed description of the invention
The follow-up content being to realize highly preferred embodiment of the present invention, and the purpose of this content is only the basic of the explaination present invention
Principle, and it is not used to limit the present invention, and the scope of the present invention should be defined by appended patent claim.
Embodiment of the present invention is relevant to optical communication system, and this optical communication system can be USB (universal serial bus)
(USB), peripheral interconnection standard (PCIe) system, high-definition multimedia audio/video interface (HDMI) system, display port (DP)
System, image procossing port (AGP) system of accelerating, other employing optical fiber are as the communication system of transmission medium.
Fig. 1 is the block chart according to the optical communication system 1 in the embodiment of the present invention.Optical communication system 1 includes that main frame fills
Put the optical transmission device 10 and 12 that 16, destination apparatus 18 and two are coupled by optical cable 14a with 14b.Optical transmission device
10 are coupled to host apparatus 16.Optical transmission device 12 is coupled to destination apparatus 18.For example, optical transmission device 10 and 12
And optical cable 14a Yu 14b composition one actively optical cable.Host apparatus 16 utilizes the communication information and the mesh of long distance that actively optical cable carries
Device for mark 18 communicates.Host apparatus 16 can include usb host (host) device or peripheral interconnection standard (PCIe)
Host apparatus, but it is not limited to this.Destination apparatus 18 can include USB device or peripheral interconnection standard device, but is not limited to
This.Optical cable 14a with 14b can be by separating cable or combination cable construction.
For example, when optical transmission device 10 and 12 and optical cable 14a Yu 14b composition one actively optical cable, active light
Plug in the terminal of cable has a shell, can insert the circuit board socket on host apparatus 16 and destination apparatus 18.
Host apparatus 16 can be by two optical transmission devices 10 and 12 and optical cable 14a Yu 14b with electrical form transmission
Data message and the information of control are to destination apparatus 18.Destination apparatus 18 can be by two optical transmission devices 10 and 12 and optical cable
14a Yu 14b with electrical form data information and control information to host apparatus 16.Control information from host apparatus 16
For regulating the data transmission between (regulate) host apparatus 16 and destination apparatus 18, or the state of management objectives device 18.
In one embodiment, control information and data message belong to the same communications protocols.Control data and can include clock signal, replacement
Signal and power state signal, but it is not limited to this.In a preferred embodiment, the control information from host apparatus 16 can be used
In recovering the remote wakeup signal that destination apparatus 18 operates, or the state of the state of state machine in switching destination apparatus 18
Switching signal.
Obtain data message and the information of control with electrical signals form, continue and carry out encoding and being converted to for optics transmission
Device 10 and 12 carries out the optical signalling of optical delivery.For example, optical transmission device 10 can transmit bag by optical cable 14a
Include data message Dt1With information S of controlcaOptical signalling Sopt1To optical transmission device 12, and optical transmission device 12 can pass through
Optical cable 14b transmits and includes data message Dt2With information S of controlcbOptical signalling Sopt2To optical transmission device 10.
When running, optical transmission device 10 and 12 can be by optical cable 14a Yu 14b at optical signalling Sopt1Or Sopt2Total
The first frequency band in transmit data signal and at optical signalling Sopt1Or Sopt2Control signal is transmitted in the second total frequency band,
It is able at each transmission direction exchange data.In other words, optical transmission device 10 can be by optical cable 14a in the first frequency band
Transmit in transmitting data signal and the second frequency band and control signal to optical transmission device 12.Similarly, optical transmission device 12
Can transmit in transmitting data signal and the second frequency band in the first frequency band by optical cable 14b and control signal to optical transmission device
10.Additionally, the communication protocol carrying out linking up for host apparatus 16 and destination apparatus 18 can be USB3.0 standard, but it is not only restricted to
This.In USB3.0 system, data blast (burst) can transmit with 5Gbps transfer rate, or in the normal mode coding after
Frequency band transmission between 500MHz and 2.5GHz, and under idle mode by 10MHz to 50MHz between low-frequency periodic signal
(LFPS) communicate with each other.Therefore, control signal can be outside frequency band 500MHz to 2.5GHz and frequency band 10MHz to 50MHz
Frequency band transmission.For example, control signal can transmit under the frequency less than 10MHz, and not transmission to data signal
Interfere.Transmitted owing to data message and control information can be packaged into optical signalling, be therefore no longer necessary to use separation
Copper cash or optical fiber transmit the control information between optical transmission device 10 and 12, and common optical cable can be used to carry out optics biography
Defeated, thus can reduce transmission system realize cost.
Optical transmission device 10 includes optical transmitter 100, optical receiver 102 and controller 104.Couple optics to pass
Send the controller 104 of device 100 and optical receiver 102, in order to control optical transmitter 100 and the data of optical receiver 102
Stream and running.For transmission path, controller 104 receives data message and control information from host apparatus 16, and will be with number
The data message D represented according to formt1With information S of controlca(imply that data signal Dt1With control signal Sca) provide respectively to optics
Conveyer 100.Data Dt1Selectively transmit in the normal mode in 500MHz to 2.5GHz frequency range under the first frequency band, or the
With idle mode transmission in 10MHz to 50MHz frequency range under one frequency band.Then, control information is processed with shape by controller 104
Become data Sca, data ScaFor having a continuous wave signal of not overlapping with first frequency second frequency.Optical transmitter 100
Output data Dt1And ScaThe binding signal being combined into, is then converted to optical signalling S by this binding signalopt1, by light
Cable 14a is sent to the optical receiver 120 of optical transmission device 12.For RX path, optical receiver 102 is passed by optics
Send device 12 receiving optical signal Sopt2, by optical signalling Sopt2Convert back electrical signals, and separate from electrical signals and reduce
Data message is data Dt2’It is data S with control informationcb’.Controller 104 can obtain data D after reductiont2’And Scb’And root
Data D according to reductiont2’And Scb’Operate.
Similarly, optical transmission device 12 includes optical transmitter 122, optical receiver 120 and controller 124.Coupling
Connect the controller 124 of optical transmitter 122 and optical receiver 120, be to control optical transmitter 122 and optical receiver
The data stream of 120 and running.For RX path, optical receiver 120 is received by the optical cable 14a on optical transmission device 10
Optical signalling Sopt1, by optical signalling Sopt1Convert back electrical signals, and separation and restoring data information are number from electrical signals
According to Dt1’It is data S with control informationca’.Controller 124 can obtain data D after reductiont1’And Sca’And according to the data of reduction
Dt1’And Sca’Operate.For transmission path, controller 124 receives data message and control information from destination apparatus 18,
And the data message D that will represent with data modet2With information S of controlcb(imply that data signal Dt2With control signal Scb) carry respectively
It is supplied to optical transmitter 122.Similarly, information Dt2With can having multiple choices under the first frequency band in 500MHz to 2.5GHz frequency range
Transmit in the normal mode, or under the first frequency band, 10MHz to 50MHz frequency range is interior with idle mode transmission.Then, controller 124
Process to form data S to control informationcb, data ScbConnect for having the one of not overlapping with first frequency second frequency
Continuous ripple signal.Optical transmitter 122 exports data Dt2And ScbThe binding signal being combined into, then turns this binding signal
It is changed to optical signalling Sopt2, it is sent to optical transmission device 10 by optical cable 14b.
Optical communication system 1 allows optical transmission device 10 and optical transmission device 12 with underlapped band pattern by light
Learn signal data information and the information of control.That is, it is not necessary to generate special optics letter to transmit control information
Number.In the above described manner, reduce set up optical communication system 1 realize cost.
Fig. 2 A is the circuit diagram according to the optical transmission apparatus 2 in the embodiment of the present invention.Optical transmission apparatus 2 can conduct
The optical transmission device 10 or 12 of Fig. 1.
Optical transmission apparatus 2 includes controller 22, colligator circuit 20 and optical transmitter 24.Colligator circuit 20
Including controlling data converter 206 and 207 and colligator 204.Optical transmitter 24 includes that electricity turns light (E/O) device 208.?
In a certain embodiment, colligator circuit 20 can be independent circuits, maybe can be integrated in controller 22.In a certain embodiment, knot
Clutch 204 can be incorporated into that optical transmitter 24, and two control data converter 206 and 207 and can be incorporated into that controller 22.
Data DtFor high-speed data, its data frequency between 500MHz to 2.5GHz (in other words, in the first frequency band
There is provided data).In a certain embodiment, data are compatible to USB3.0 standard.In fig. 2, two control data converter 206
Respectively electrical control signal is converted to two different continuous wave signals with different frequency with 207.Two differences are even
The frequency of continuous ripple signal and data DtData frequency the most overlapping.In a certain embodiment, control data converter according to control
The state of signal, is converted to continuous wave signal with a preset frequency by control signal.In a certain embodiment, electrical control letter
Number Dc1There are two effective statuses.Such as one of which state is " 1 ", represents logic high potential, and another kind of state is that " 0 " represents
Logic low potential.If control signal Dc1During for logic high potential, control data converter 206 by control signal Dc1Pre-with first
Determine frequency and be converted to continuous wave signal.Similarly, if control signal Dc1During for logic low potential, control data converter 206 with
Second preset frequency is by control signal Dc1Be converted to another continuous wave signal.In alternative embodiments, the first preset frequency can generation
The electrical control signal of table is in an effective status, and can not represent electrical control signal in the first preset frequency and be in another
Effective status.In addition, the first preset frequency and the second preset frequency are all less than the frequency band of data signal.
Refer to Fig. 2 A, two switching devices 200 and 202 can be as above-mentioned control data converter.Control signal Dc1
And Dc2Respectively as switch-over control signal SW1 and SW2 for controlling switching device 200 and 202.Frequency freqc10、freqc11、
freqc20, and freqc21It is different from data DtData frequency, and can be low frequency ranges, e.g., less than 20MHz, but not be subject to
It is limited to this.4 frequencies freqc10、freqc11、freqc20, and freqc21Can produce from a single signal source, or can believe from difference
Number source produces.Furthermore, frequency freqc10、freqc11、freqc20, and freqc21The most different, freqc10And freqc11Generation respectively
Table control signal Dc1Two states, freqc20And freqc21Represent control signal D respectivelyc2Two states.For example,
Frequency freqc10And freqc114MHz and 5MHz can be respectively.When control signal Dc1When being the first logic state, switching device 200
Select frequency freqc10(4MHz frequency) is as electrical control signal Sc1Output is to colligator 204.When control signal Dc1For
During the second logic state, switching device 200 selects frequency freqc11 (5MHz frequency) as electrical control signal Sc1Output
To colligator 204.Switching device 202 operates in the same manner.When control signal Dc2When being the first logic state, switching device
202 select frequency freqc20As electrical control signal Sc2Output is to colligator 204.When control signal Dc2It it is the second logic
During state, switching device 202 selects frequency freqc21As electrical control signal Sc2Output is to colligator 204.In addition,
By high pass filter 210 to data D before arriving at colligator 204tFiltering, produces a filtering data signal Dtf, to guarantee
Data signal DtThe most accurate.Switching device 200 and 202 is by control signal Dc1And Dc2Select frequency freqc10、freqc11、
freqc20And freqc21, frequency (electrical control signal S that will choosec1And Sc2) export respectively to colligator 204, this combination
Device 204 combines selected frequency and filtering data signal Dtf to produce a binding signal Scomb.Due to frequency freqc10、
freqc11、freqc20, and freqc21And data DtFrequency non-overlapping copies, so will not be at binding signal ScombMake the most mutually
Become interference.
Electricity turns electro-optical device 208 and includes that laser diode (not shown) or other proper laser that can replace laser diode fill
Put.Laser diode produces the optical carrier signal with predetermined carrier frequency and wide frequency band.Electricity turns electro-optical device 208 from combination
Device 204 receives binding signal Scomb, modulate binding signal S with optical carrier signalcomb, carried out by optical fiber (not shown) output
Link up the optical signalling S being usedopt.In a certain embodiment, electricity turns electro-optical device 208 only can receive binding signal ScombAnd will knot
Close signal ScombBe converted to optical signalling Sopt, for follow-up any transmission mode.
Refer to Fig. 2 B, this figure is the circuit diagram of another embodiment of the optical transmission apparatus 2 according to the present invention.Fig. 2 A with
The difference of Fig. 2 B is that controlling data converter is realized with 212 by two programmable frequency dividers 214.Can compile for these two
Journey frequency divider 214 and 212 can receive same frequency from frequency source freq.Control signal Dc1And Dc2It is taken as frequency divider control
Signal processed, respectively according to control signal Dc1And Dc2The corresponding divider ratio of condition selecting.When control signal Dc1It is first
Logic state, frequency divider 214 selects the first preset frequency divider ratio NDC10, export frequency freqc10(for 4MHz) conduct
One electrical control signal Sc1It is sent to colligator 204.When control signal Dc1Being the second logic state, frequency divider 214 selects
Two preset frequency divider ratio NDC11, export frequency freqc11(for 5MHz) is as electrical control signal Sc1It is sent to
Colligator 204.Frequency divider 212 operates in the same manner.When control signal Dc2Being the first logic state, frequency divider 212 selects
Three preset frequency divider ratio NDC20, export frequency freqc20It is used as electrical control signal Sc2, is sent to combine
Device 204.When control signal Dc2Being the second logic state, frequency divider 212 selects the 4th preset frequency divider ratio NDC21, defeated
Go out frequency freqc21It is used as electrical control signal Sc2, it is sent to colligator 204.Frequency freqc10、freqc11、
freqc20, and freqc21It is different from data DtData frequency, and can position in low frequency ranges, such as less than 20MHz, but not
It is limited to this.In addition, before arriving at colligator 204, high pass filter 210 is passed through to data DtFiltering, produces a filtering number
The number of it is believed that Dtf, to guarantee that data signal Dt is the most accurate.Colligator 204 combines the output frequency controlling data converter 206 and 207
Rate and filtering data signal DtfProduce a binding signal Scomb.Due to frequency freqc10、freqc11、freqc20, and freqc21With
And data DtFrequency non-overlapping copies, so will not be at binding signal ScombInterfere the most mutually.Although Fig. 2 A and Fig. 2 B is the most aobvious
Show two control signals Dc1And Dc2, those skilled in the art can according to the principle of identity being disclosed in embodiment, cognitive two with
On control data can by conversion and multiplexing become optical signalling Sopt。
Optical transmission device 10 and 12 allows host apparatus 16 and destination apparatus 18 to believe by optics in underlapped frequency
Number data information and the information of control, realize cost with reduce optical cable.
Fig. 3 be according to embodiments of the present invention in the block diagram of an optical receiver 3.Optical receiver 3 can be as Fig. 1's
Optical receiver 102 and 120.Optical receiver 3 receiving optical signal SoptIn order to by optical cable transmission, and by optical signalling Sopt
Revert back electrical data and control signal.
Optical receiver 3 includes that light turns electric installation and wave filter 32,34 and 36.Light turns electric installation 30 and includes photodetector
(not shown) with turn impedance amplifier (Transimpedance Amplifier, TIA) (not shown).Photodetector detection optics letter
Number SoptLight wave, and turn the optical signalling S that impedance amplifier will detectoptBe converted to the electrical signals of correspondence.
Wave filter 32,34 and 36 is respectively used to filter electrical data signal Dt’, frequency freqc10And freqc11.Wave filter
32,34 and 36 can be band filter, it is allowed to electrical data separate from switched electrical signals with control signal.Wave filter
32, the operation frequency range of 34 and 36 can predetermine to meet optical transmission apparatus and states clearly the frequency spectrum design of (set out).Or light
Learn receptor 3 and may also comprise frequency detection circuit (not shown), in order to active detecting optical signalling SoptIn all available frequencies
Composition, and respective filter 32,34 and 36 its operation frequency range of configuration.For example, wave filter 32 can be configured to isolate
Signal between 500MHz 2.5GHz frequency band, wave filter 34 can be configured to the band signal isolated centered by 4MHz, and filter
Ripple device 36 can be configured to the band signal isolated centered by 5MHz.In another embodiment, band filter (not shown
Before wave filter 34 and 36 Fig. 3) can be added in, in order to filter relatively low frequency range, such as below 20MHz.In addition, due to
Wave filter 32 is configured to separate electrical data signal D occupying maximum spectrumt’, wave filter 32 is alternatively high pass filter.
Fig. 3 does not show and is used for filtering freqc20And freqc21Respective filter.
Optical receiver 3 allows host apparatus and destination apparatus by picking out data message in an optical signalling and controlling letter
Breath, realizes cost with reduce optical cable.
Fig. 4 be according to embodiments of the present invention in the flow chart of an optical delivery method 4, the method coordinates the optics of Fig. 1
Communication system 1 and Fig. 2 A, the optical transmission apparatus 2 of Fig. 2 B.When host apparatus 16 or destination apparatus 18 to be passed by actively optical cable
When sending data signal and control signal, this optical delivery method can be started.
After this optical delivery method starts, host apparatus 16 can be connected to destination apparatus 18 by active light cable, prepares logical
Cross actively optical cable 14a and transmit data and the information of control (S400).
Then, it is provided that electrical data signal D in the first frequency bandt(S402).In a certain embodiment, optics transmission
Device 100 is configured to transmit the most electrical data signal Dt.The scope of the first frequency band can at 500MHz and
Between 2.5GHz.It addition, high pass filter 210 can be in advance to data DtFiltering, to produce a filtering data signal Dtf, in order to really
Protect data signal DtThe most accurate.
Simultaneously, it is provided that electrical control signal S in the second frequency bandc(S404).Second frequency band not with the first frequency band weight
Folded, and the scope of the second frequency band can be such as between 0Hz and 10MHz.Electrical control signal DcWith data signal DtBelong to identical
Communication agreement.
In certain embodiments, optical transmitter 100 is configured to transmit electrical control signal Dc, and according to electrical
Control signal DcState, change electrical control signal DcElectrical control signal S to the second frequency bandc.Control data to turn
Parallel operation is implemented in optical transmitter 100, and is configured to according to electrical control signal DcState, change electrical control
Signal DcElectrical control signal S to the second frequency bandc.In a certain embodiment, control data converter according to control signal
State, the continuous wave signal in changeover control signal to the second frequency band.In a certain embodiment, electrical control signal DcTool
There are two effective statuses.For example, " 1 " represents that logic is high potential state, and " 0 " represents that logic is low-potential state.As
Fruit controls data DcWhen representing high potential state, control data converter conversion and control data DcFor having the first preset frequency
One continuous wave.Similarly, if controlling data DcWhen representing low-potential state, control data converter conversion and control data DcFor
There is a continuous wave of the second preset frequency.In other embodiments, the first preset frequency can represent that electrical control signal is
At an effective status, and can not represent that electrical control signal is at another effective status in the first preset frequency.In addition,
First preset frequency and the second preset frequency are below the frequency band of data signal.
In other embodiments, optical transmitter 100 changes electrical control signal DcFor only representing electrical control letter
Number DcElectrical control data S of predetermined frequency band statec.It is to say, electrical control signal S ought not receivedc, light
Learn the most cognitive electrical control signal D of receptor 120cFor the state beyond predetermined state and electrical when receive
Control signal Sc, the most cognitive electrical control signal D of optical receiver 120cFor predetermined state.
Colligator circuit 20 then combines data signal D in the first frequency bandtOr data signal D filteredtfWith second
Electrical control signal S in frequency bandc, to produce a binding signal Scomb(S406).Because data signal and electrical control letter
Number use underlapped frequency band, so two signals are at binding signal ScombIn will not interfere with each other.
Finally, electricity turns electro-optical device 208 for changing binding signal ScombIt is an output optical signalling Sopt, and lead to (S408)
Cross optical cable and transmit output optical signalling SoptTo destination apparatus 18.Owing to data and control signal energy carrier wave are in same optical signalling
SoptAnd do not interfere with each other, so only need an optical cable just can be transmitted.Therefore, the realization of optical communication networks is set up in reduction
Cost.
Although the embodiment of aforementioned paragraphs uses host apparatus 16 to show each step of optical delivery method.It is understood that
Destination apparatus 18 also can use optical delivery method to carry out from destination apparatus 18 to the transmission of host apparatus 16.
Optical delivery method allows host apparatus and destination apparatus to transmit data by optical signalling on underlapped frequency band
Information and the information of control, thus can reduce set up optical communication system 1 realize cost.
The word used in the present invention " judges ", comprises calculation, calculating, computing, obtains, investigates, inquires about (such as: inquire about
Form, data base or other data structures), the connotation such as conclude." judge " also to comprise solution, select, select, foundation etc. contains
Meaning.
By general processor, digital signal processor (Digital Signal Processor, DSP), application-specific
Integrated circuit (Application Specific Integrated Circuit, ASIC), planning logic element able to programme
(Field Programmable Gate Array, FPGA) or other program-controlled logic elements, discrete type logic circuit or crystal
Pipe gate, discrete type hardware element, electrical components, optical element, mechanical organ or for performing described in the invention holding
The combination in any of row function, it is achieved or show various logic block, module and the circuit being disclosed in present invention description.General
Processor can be microprocessor, or, this processor can be any commercial processor, controller, microprocessor or state
Machine.
By circuit hardware or the embedded software code being executed by processor and accessing, it is achieved be disclosed in the present invention and retouch
State middle various logic block, module and the function of circuit and operation.
Although describing the present invention by example and embodiment representation mode, but the present invention being not limited to disclosed enforcement
Example.On the contrary, it (is apparent for those skilled in the art to similar configuration that various amendments is contained in present invention attempt
).Therefore, appended claims should be according to the widest interpretation mode to comprise all modifications and similar configuration.
Claims (15)
1. a transfer approach, in order to connect with the optics controlling signal to destination apparatus by optical transmitter transmission data signal
Receiving device, this transfer approach includes:
Data signal in the first frequency band is provided；
Control signal in the second frequency band is provided；
In conjunction with this data signal in this first frequency band and this control signal in this second frequency band, produce binding signal；And
This binding signal is converted to export optical signalling to be sent to this optical receiver, wherein this control signal is used for controlling
This destination apparatus.
2. transfer approach as claimed in claim 1, wherein this control signal has two kinds of effective statuses, and at this second frequency band
The first interior preset frequency represents an effective status of this control signal, and the second preset frequency generation in this second frequency band
Another effective status of this control signal of table.
3. transfer approach as claimed in claim 1, wherein this control signal has two kinds of effective statuses, and at this second frequency band
An interior preset frequency represents an effective status of this control signal, and does not lies in this preset frequency generation in this second frequency band
Another effective status of this control signal of table.
4. transfer approach as claimed in claim 1, the frequency range that wherein this second frequency band is contained is less than this first frequency band
Frequency range.
5. transfer approach as claimed in claim 1, wherein provides the step of this control signal to include at this second frequency band:
According to the different conditions of this control signal, be converted to this control signal to be respectively provided with different preset frequency multiple continuously
Ripple signal.
6. transfer approach as claimed in claim 1, wherein provides the step of this control signal to include at this second frequency band:
A state according to this control signal, selects a respective frequencies in this second frequency band.
7. transfer approach as claimed in claim 1, wherein this second frequency band is the most overlapping with this first frequency band.
8. an optical transmitter, in order to transmit data signal and to control signal to the optical receiver of destination apparatus, this optics
Conveyer includes:
Control data converter, in order to the different conditions according to this control signal, respectively control signal is converted to have difference
Multiple continuous wave signals of preset frequency；
Colligator circuit, is coupled to this control data converter, in order to combine data signal in the first frequency band with described continuously
Ripple signal, to produce binding signal；And
Electricity turns electro-optical device, is coupled to this colligator circuit, in order to this binding signal to be converted to output optical signalling to be sent to
This optical receiver.
9. optical transmitter as claimed in claim 8, wherein this control signal has two kinds of effective statuses, when this control signal
Being in the first state, this control signal is converted to the continuous wave signal with the first preset frequency by this control data converter,
And when this control signal is in the second state, this control signal is converted to have the second predetermined frequency by this control data converter
The continuous wave signal of rate.
10. optical transmitter as claimed in claim 8, wherein this control signal has two kinds of effective statuses, when this control is believed
Number being in the first state, this control signal is converted to the continuous wave letter with the first preset frequency by this control data converter
Number, and when this control signal is in the second state, and it is pre-that this control signal is converted to have second by this control data converter
Determine the continuous wave signal of frequency；And the preset frequency in this second frequency band represents this control signal and is in an effective status,
And do not lie in this preset frequency in this second frequency band and represent this control signal and be in another effective status.
11. optical transmitter as claimed in claim 8, the frequency range that wherein this second frequency band is contained is less than this first frequency band
Frequency range.
12. optical transmitter as claimed in claim 8, wherein these control data converters, in order to according to this control signal
Different conditions, is converted to the described continuous wave signal with different preset frequency respectively by this control signal.
13. optical transmitter as claimed in claim 8, wherein this control data converter is as switching switch, in order to basis
Frequency in this second frequency band of the condition selecting of this control signal.
14. optical transmitter as claimed in claim 8, wherein this control data converter is as being coupled to compiling of frequency source
Journey frequency divider, and this control data converter is according to the state of this control signal, selects divider ratios to export this second frequency
Frequency dividing in band.
15. optical transmitter as claimed in claim 8, wherein this control signal belongs to same in order to control the transmission of this destination apparatus
The data of agreement and control data.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/932,196 US20170124860A1 (en) | 2015-11-04 | 2015-11-04 | Optical transmitter and method thereof |
| US14/932,196 | 2015-11-04 | ||
| TW105116062 | 2016-05-24 | ||
| TW105116062A TWI639318B (en) | 2015-11-04 | 2016-05-24 | Optical transmitter and a transmission method |
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| Publication Number | Publication Date |
|---|---|
| CN106130652A true CN106130652A (en) | 2016-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610474254.6A Pending CN106130652A (en) | 2015-11-04 | 2016-06-24 | Optical transmitter and transmission method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5383046A (en) * | 1992-05-29 | 1995-01-17 | Fujitsu Limited | Supervisory and control signal transmitting system for use in optically amplifying repeaters system |
| JPH10229384A (en) * | 1997-02-13 | 1998-08-25 | Nippon Telegr & Teleph Corp <Ntt> | Optical control signal transmitter |
| CN1450732A (en) * | 2002-03-01 | 2003-10-22 | 松下电器产业株式会社 | Wavelength division multiplex transmission system |
| CN203086478U (en) * | 2013-01-22 | 2013-07-24 | 河北人天通信技术有限公司 | Optical module |
| US20150125143A1 (en) * | 2013-11-04 | 2015-05-07 | Fujitsu Limited | System and method for monitoring polarization-dependent loss |
| CN104967487A (en) * | 2015-07-24 | 2015-10-07 | 武汉光迅科技股份有限公司 | In-band unvarnished transmission monitoring signal optical module based on frequency modulation |
-
2016
- 2016-06-24 CN CN201610474254.6A patent/CN106130652A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5383046A (en) * | 1992-05-29 | 1995-01-17 | Fujitsu Limited | Supervisory and control signal transmitting system for use in optically amplifying repeaters system |
| JPH10229384A (en) * | 1997-02-13 | 1998-08-25 | Nippon Telegr & Teleph Corp <Ntt> | Optical control signal transmitter |
| CN1450732A (en) * | 2002-03-01 | 2003-10-22 | 松下电器产业株式会社 | Wavelength division multiplex transmission system |
| CN203086478U (en) * | 2013-01-22 | 2013-07-24 | 河北人天通信技术有限公司 | Optical module |
| US20150125143A1 (en) * | 2013-11-04 | 2015-05-07 | Fujitsu Limited | System and method for monitoring polarization-dependent loss |
| CN104967487A (en) * | 2015-07-24 | 2015-10-07 | 武汉光迅科技股份有限公司 | In-band unvarnished transmission monitoring signal optical module based on frequency modulation |
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