CN109428665A - Wavelength-division multiplex sending device, receiving device, trunking and Transmission system - Google Patents
Wavelength-division multiplex sending device, receiving device, trunking and Transmission system Download PDFInfo
- Publication number
- CN109428665A CN109428665A CN201710720820.1A CN201710720820A CN109428665A CN 109428665 A CN109428665 A CN 109428665A CN 201710720820 A CN201710720820 A CN 201710720820A CN 109428665 A CN109428665 A CN 109428665A
- Authority
- CN
- China
- Prior art keywords
- wavelength
- wave
- quantum
- channel
- optical signal
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0852—Quantum cryptography
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0852—Quantum cryptography
- H04L9/0855—Quantum cryptography involving additional nodes, e.g. quantum relays, repeaters, intermediate nodes or remote nodes
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a kind of wavelength-division multiplex sending device, receiving device, trunking and Transmission systems, are related to field of information security technology.Wavelength-division multiplex sending device therein includes: quantum key distribution unit, is used for wave multiplexer quantum wavelength channels；Optical Supervisory Channel processing unit, for sending Optical Supervisory Channel wavelength channels to wave multiplexer；Wave division multiplexing service processing unit, for sending Wave length of classics optical signal to wave multiplexer；Wave multiplexer, for quantum wavelength channels, Optical Supervisory Channel wavelength channels and Wave length of classics optical signal to be carried out multiplex.The present invention can provide value-added quantum encrypted transmission business and quantum key distribution service in the case where keeping traditional networking mode constant for user, achieve the effect that reduce cost and reduce fiber resource.
Description
Technical field
The present invention relates to field of information security technology, in particular to a kind of wavelength-division multiplex sending device, wavelength-division multiplex receive
Equipment, wavelength-division multiplex trunking and wave division multiplexing transmission system.
Background technique
Coded communication technology is an important technology of the information communications field, the classical coded communication skill for telecommunication network
The key that art is exported using cipher machine or auto-negotiation algorithm generates carries out symmetrical encryption and decryption operation to Content of Communication, prevents from communicating
It is ravesdropping in the process.But with the development of the new technologies such as high performance parallel computation, quantum calculation, difficulty that classic key is cracked
Degree substantially reduces, therefore the classical coded communication technology based on algorithm complexity faces huge technical risk.
QKD (quantum key distribution, quantum key distribution) technology can not based on quantum indeterminacy, quantum
The quantum physics basic principles such as clone may be implemented safer key and generate and provide, develop faster quantum key at present
Distribution technology, as quantum information carrier, uses optical fibers as transmission medium, QKD equipment is transported as independent equipment using photon
Row, and occupy independent optical fiber and transmitted, equipment cost is higher, more to the occupancy of fiber resource.
Summary of the invention
Inventor research thinks, encryption be communication service attached attribute and value-added service, need with tradition or at
It is combined for classical communication service just valuable.Therefore QKD equipment and classical communication equipment are blended, using common light
Fine resource completes the domestic demands such as the transmission of quantum channel and classical channel.WDM(Wavelength Division
Multiplexing, wavelength-division multiplex) transmission device is the major way for meeting the transmission of large capacity information, therefore present invention proposition is melted
The WDM transmission equipment of resultant quantum key distribution function provides increasing in the case where traditional networking mode can be kept constant for user
The quantum encrypted transmission business and quantum key distribution service of value achieve the effect that reduce cost and reduce fiber resource.
The technical problem that the present invention solves is, is user how in the case where keeping traditional networking mode constant
Value-added quantum encrypted transmission business and quantum key distribution service are provided, the effect for reducing cost and reducing fiber resource is reached
Fruit.
According to an aspect of an embodiment of the present invention, a kind of wavelength-division multiplex sending device is provided, comprising: quantum key point
Bill member, for utilizing the association of Optical Supervisory Channel processing unit offer to wave division multiplexing service processing unit quantum key
Quotient channel carries out protocol negotiation, and it is synchronous to carry out signal using the synchronization signal that Optical Supervisory Channel processing unit provides, and to multiplex
Device quantum wavelength channels；Optical Supervisory Channel processing unit, for sending Optical Supervisory Channel wavelength channels to wave multiplexer,
And it is provided for quantum key distribution unit and negotiates channel and synchronization signal；Wave division multiplexing service processing unit is used for from quantum
Cipher key distribution unit receives quantum key, after being encrypted using received quantum key to service signal, sends to wave multiplexer
Wave length of classics optical signal；Wave multiplexer is used for quantum wavelength channels, Optical Supervisory Channel wavelength channels and Wave length of classics light
Signal carries out multiplex, and transmits the optical signal after multiplex.
In one embodiment, the Optical Supervisory Channel processing unit supports single fiber bi-directional communication；The wave multiplexer is used for:
Bi-directional light monitoring and controlling channels wavelength channels are transmitted on different Optical Supervisory Channel wavelength in the first transmission fiber, in the second transmission
Transmission quantity wavelet length optical signal on Optical Supervisory Channel wavelength in optical fiber, first transmission fiber and second transmission fiber
The pairs of transmission fiber between communicating pair.
In one embodiment, wave multiplexer is greater than first threshold, wave multiplexer from Wave length of classics to the isolation of quantum wavelength
It is greater than second threshold from Optical Supervisory Channel wavelength to the isolation of quantum wavelength.
In one embodiment, wavelength-division multiplex sending device further includes control unit, is used for: according to the decaying of transmission link
The minimal detectable power of situation and Wave length of classics optical signal calculates the minimum of Wave length of classics optical signal and sends power；According to wave
The receptible maximum of crosstalk of quantum key distribution unit institute, wave multiplexer are from Wave length of classics to quantum wavelength in point multiplexing reception equipment
Isolation, channel-splitting filter calculates Wave length of classics light from Wave length of classics to the isolation of quantum wavelength in wavelength-division multiplex receiving device
The maximum of signal sends power；It controls wave division multiplexing service processing unit and sends the power of Wave length of classics optical signal more than or equal to warp
The minimum maximum transmission power for sending power and being less than or equal to Wave length of classics optical signal of allusion quotation wavelength channels；According to transmission link
Attenuation and Optical Supervisory Channel wavelength channels minimal detectable power, calculate Optical Supervisory Channel wavelength channels most
Small transmission power；According to the receptible maximum of crosstalk of quantum key distribution unit institute in wavelength-division multiplex receiving device, wave multiplexer from
Optical Supervisory Channel wavelength is to channel-splitting filter in the isolation, wavelength-division multiplex receiving device of quantum wavelength from Optical Supervisory Channel wavelength to amount
The isolation of wavelet length calculates the maximum of Optical Supervisory Channel wavelength channels and sends power；Control Optical Supervisory Channel processing unit
The power for sending Optical Supervisory Channel wavelength channels is more than or equal to the minimum power and small of sending of Optical Supervisory Channel wavelength channels
Power is sent in being equal to the maximum of Optical Supervisory Channel wavelength channels.
In one embodiment, control unit is also used to: it is received whether control wave division multiplexing service processing unit utilizes
Quantum key encrypts service signal.
Other side according to an embodiment of the present invention provides a kind of wavelength-division multiplex receiving device, comprising: channel-splitting filter,
It is quantum wavelength channels, Optical Supervisory Channel wavelength light by the optical signal partial wave after multiplex for receiving the optical signal after multiplex
Signal and Wave length of classics optical signal, and quantum wavelength channels are sent to quantum key distribution unit, by Optical Supervisory Channel
Wavelength channels are sent to Optical Supervisory Channel processing unit, and it is single that Wave length of classics optical signal is sent to wave division multiplexing service processing
Member；Quantum key distribution unit, for being provided using Optical Supervisory Channel processing unit from channel-splitting filter reception amount wavelet length optical signal
Negotiation channel carry out protocol negotiation, it is synchronous to carry out signal using the synchronization signal that Optical Supervisory Channel processing unit provides, and to
Wave division multiplexing service processing unit quantum key；Optical Supervisory Channel processing unit, for receiving light monitoring letter from channel-splitting filter
Road wavelength channels, and provided for quantum key distribution unit and negotiate channel and synchronization signal；Wave division multiplexing service processing is single
Member receives quantum key from quantum key distribution unit, and utilize received for receiving Wave length of classics optical signal from channel-splitting filter
Quantum key Wave length of classics optical signal is decrypted the service signal decrypted.
In one embodiment, Optical Supervisory Channel processing unit supports single fiber bi-directional communication；Channel-splitting filter is used for: being passed first
Transmission bi-directional light monitoring and controlling channels wavelength channels on Optical Supervisory Channel wavelength different in fibre are lost, in the second transmission fiber
Transmission quantity wavelet length optical signal on Optical Supervisory Channel wavelength, first transmission fiber communicate double with second transmission fiber
Pairs of transmission fiber between side.
In one embodiment, channel-splitting filter is greater than first threshold, channel-splitting filter from Wave length of classics to the isolation of quantum wavelength
It is greater than second threshold from Optical Supervisory Channel wavelength to the isolation of quantum wavelength.
In one embodiment, wavelength-division multiplex receiving device further include: control unit, for controlling at wave division multiplexing service
Whether reason unit is decrypted using the quantum key of acquisition.
Another aspect according to an embodiment of the present invention provides a kind of wavelength-division multiplex trunking, comprising: channel-splitting filter,
It is quantum wavelength channels, Optical Supervisory Channel wavelength light by the optical signal partial wave after multiplex for receiving the optical signal after multiplex
Signal and Wave length of classics optical signal, and quantum wavelength channels are sent to quantum key relay unit, by Optical Supervisory Channel
Wavelength channels are sent to Optical Supervisory Channel relay unit, and it is single that Wave length of classics optical signal is sent to wave division multiplexing service relaying
Member；Quantum key relay unit, for providing relaying function for quantum wavelength channels from channel-splitting filter reception amount wavelet length optical signal
Can, and quantum wavelength channels are sent to wave multiplexer；Optical Supervisory Channel relay unit, for receiving light monitoring letter from channel-splitting filter
Road wavelength channels provide relay function for Optical Supervisory Channel optical signal, and Optical Supervisory Channel optical signal are sent to wave multiplexer；
Wave division multiplexing service relay unit provides relaying for receiving Wave length of classics optical signal from channel-splitting filter for Wave length of classics optical signal
Function, and Wave length of classics optical signal is sent to wave multiplexer；Wave multiplexer is used for quantum wavelength channels, Optical Supervisory Channel wave
Long optical signal and Wave length of classics optical signal carry out multiplex, and transmit the optical signal after multiplex.
In one embodiment, the Optical Supervisory Channel relay unit supports single fiber bi-directional communication；The wave multiplexer and
The channel-splitting filter is used for: transmitting bi-directional light monitoring and controlling channels wavelength light on different Optical Supervisory Channel wavelength in the first transmission fiber
Signal, the transmission quantity wavelet length optical signal on the Optical Supervisory Channel wavelength in the second transmission fiber, first transmission fiber with
Second transmission fiber transmission fiber pairs of between communicating pair.
In one embodiment, wave multiplexer is greater than first threshold, wave multiplexer from Wave length of classics to the isolation of quantum wavelength
From Optical Supervisory Channel wavelength to the isolation of quantum wavelength be greater than second threshold, channel-splitting filter from Wave length of classics to quantum wavelength every
It is greater than first threshold from degree, channel-splitting filter is greater than second threshold from Optical Supervisory Channel wavelength to the isolation of quantum wavelength.
In one embodiment, wave division multiplexing service relay unit is image intensifer unit, for providing Wave length of classics light
The optical signal amplification relay function of signal.
In one embodiment, wave division multiplexing service relay unit is photoelectricity photo reversal unit, for providing Wave length of classics
The photoelectricity photo reversal relay function of optical signal.
Another aspect according to an embodiment of the present invention provides a kind of wave division multiplexing transmission system, which is characterized in that packet
Include wavelength-division multiplex sending device above-mentioned and wavelength-division multiplex receiving device above-mentioned.
In one embodiment, wave division multiplexing transmission system further includes wavelength-division multiplex trunking above-mentioned.
The present invention can be realized in the case where keeping traditional networking mode constant, provide value-added quantum cryptography for user
Transmission services and quantum key distribution service achieve the effect that reduce cost and reduce fiber resource.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 shows the structural schematic diagram of the wave division multiplexing transmission system of one embodiment of the invention.
Fig. 2 shows the structural schematic diagrams of the wavelength-division multiplex sending device of one embodiment of the invention.
Fig. 3 shows the structural schematic diagram of the wavelength-division multiplex receiving device of one embodiment of the invention.
Fig. 4 shows the structural schematic diagram of the wavelength-division multiplex trunking of one embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under all other embodiment obtained, shall fall within the protection scope of the present invention.
Inventor is the study found that quantum communications at present and quantum QKD equipment not yet consider the need of extensive commercial deployment
It asks, is confined to QKD function and performance itself, does not deeply consider and be converted into productivity, what is combined with actual communication networks answers
With.The WDM transmission equipment of integrated QKD function of the invention is conducive to QKD function introducing large capacity WDM transmission system, favorably
In the extensive commercialization for realizing safe quantum communication technology.QKD equipment and classical communication equipment are blended, using common light
Fine resource completes the transmission of quantum channel and classical channel, can achieve the purpose that reduce cost, improve fiber resource utilization rate.
Based on this demand, the present invention proposes the WDM transmission equipment of fusion QKD function, and traditional networking mode and business can be kept to provide
In the case where on time constant, value-added quantum encrypted transmission business and quantum key distribution service are provided for user, while not accounting for
With additional fiber resource.Integrated equipment form is also beneficial to engineering construction and operation and maintenance.
Fig. 1 is combined to introduce the wave division multiplexing transmission system of one embodiment of the invention first.
Fig. 1 shows the structural schematic diagram of the wave division multiplexing transmission system of one embodiment of the invention.As shown in Figure 1, this
Wave division multiplexing transmission system 10 in embodiment includes: wavelength-division multiplex sending device 102 and wavelength-division multiplex receiving device 104.
Wherein, wavelength-division multiplex sending device 102 is to merge the WDM transmission equipment of QKD function, is worked in business transmitting terminal,
The sending function that can complete classical communication wavelength, supervisory wavelength and QKD quantum wavelength, provides client traffic access and quantum adds
Close function.
Wavelength-division multiplex receiving device 104 is the WDM transmission equipment for merging QKD function, and work puts station in Quantum repeater and light
Node completes the light relaying of classical communication wavelength, the Quantum repeater function of the termination of supervisory wavelength and QKD quantum wavelength.
In a preferred embodiment, wave division multiplexing transmission system 10 further includes wavelength-division multiplex trunking 106.
Wavelength-division multiplex trunking 106 is the WDM transmission equipment for merging QKD function, is worked in business receiving end, can be complete
At classical communication wavelength, the receive capabilities of supervisory wavelength and QKD quantum wavelength, client traffic output is provided and quantum decrypts function
Energy.
QKD function is integrated in inside WDM transmission equipment by above-described embodiment, while quantum wavelength, Classic Wave is respectively adopted
Long and OSC wavelength carrying quantum QKD signal, classical service signal and osc signal, thus not needing to increase new fiber resource
The secure communication service that can provide quantum cryptography meets client to the high request of safety.
The wavelength-division multiplex sending device of one embodiment of the invention is introduced below with reference to Fig. 2.
Fig. 2 shows the structural schematic diagrams of the wavelength-division multiplex sending device of one embodiment of the invention.As shown in Fig. 2, this
Wavelength-division multiplex sending device 102 in embodiment includes:
Quantum key distribution unit 2021, for utilizing to 2025 quantum key of wave division multiplexing service processing unit
The negotiation channel that Optical Supervisory Channel processing unit 2023 provides carries out protocol negotiation, is mentioned using Optical Supervisory Channel processing unit 2023
It is synchronous that the synchronization signal of confession carries out signal, and to 2027 quantum wavelength channels of wave multiplexer.
Wherein, the effect of quantum key distribution unit is to provide QKD sending function, and is wave division multiplexing service processing unit
The middle board for needing to provide quantum encryption and decryption service provides quantum key.In addition, quantum key distribution unit can also be by outer
Portion's interface provides key to other quantum encryption communication equipment, it then follows standardized quantum key Service interface protocol or privately owned association
View.
Optical Supervisory Channel processing unit 2023 is used to send Optical Supervisory Channel wavelength channels to wave multiplexer 2027, and is
Quantum key distribution unit 2021, which provides, negotiates channel and synchronization signal.
Wherein, on the one hand the effect of Optical Supervisory Channel processing unit is to provide the OSC communication service of traditional wdm system,
Network management communication signalling path, station affair phone etc. are provided for example, between each node of wdm system.On the other hand, monitoring letter
Road processing unit can provide for QKD unit negotiates channel and synchronization signal.QKD unit during the work time, needs one pair
To classical communication channel carry out related protocol negotiation, bandwidth demand is in 100M or so.The prior art needs to prepare end to end
Telecommunication circuit is used for the negotiation of QKD both sides, it is therefore desirable to prepare a dedicated optical fiber for QKD both sides and pass through lock-out pulse reality
Now synchronize.In the present embodiment, OSC can provide the maximum classical communication channel up to 1G, be drawn wherein by modes such as VLAN
A dedicated communication channel is divided to be supplied to the use of QKD unit.In addition, QKD unit needs to synchronize during the work time,
OSC unit can be by technologies such as the synchronization mechanism of signal itself or introducing synchronous ethernet, IEEE 1588 to QKD unit
Synchronization signal output service is provided, so that the synchronization signal that QKD unit directly uses OSC to provide realizes that both sides are synchronous.
Wave division multiplexing service processing unit 2025 is utilized for receiving quantum key from quantum key distribution unit 2021
After received quantum key encrypts service signal, Wave length of classics optical signal is sent to wave multiplexer 2027.
Wherein, the effect of wave division multiplexing service processing unit is to provide the business processing and WDM transmission function of traditional WDM equipment
Can, the functions such as multiplex, amplification and power control for example including Wave length of classics, and need to provide quantum encryption and decryption service when from
QKD obtains quantum key.If there is multiple WDM Service Processing Units, then multiple WDM Service Processing Units send multiple wavelength
Signal to wave multiplexer.
Wave multiplexer 2027, for believing quantum wavelength channels, Optical Supervisory Channel wavelength channels and Wave length of classics light
Number multiplex is carried out, and transmits the optical signal after multiplex.
Wherein, the effect of wave multiplexer is the multiplex of performance wavelet length, OSC wavelength and Wave length of classics.The conjunction of three kinds of wavelength
Wave technology key is to select the technical parameters such as the isolation of suitable wavelength and power and wave multiplexer, prevents Wave length of classics
Quantum wavelength is interfered with OSC wavelength.It, can be by the frequency between quantum wavelength and OSC wavelength in terms of selecting wavelength
It is set to 50~100nm, and sets 20~30nm for the frequency interval between quantum wavelength and Wave length of classics, to reduce
The interference of Wave length of classics and OSC wavelength to quantum wavelength.
On the other hand, it can choose the wave multiplexer of high-isolation, reduce interference of the classical signals to quantum signal.Wave multiplexer
Isolation from Wave length of classics to quantum wavelength should be greater than first threshold, be greater than 20 decibels.Preferably, wave multiplexer is from classics
The isolation of wavelength to quantum wavelength is greater than 60 decibels.Wave multiplexer should be big to the isolation of quantum wavelength from Optical Supervisory Channel wavelength
In second threshold, second threshold here can be identical or different with first threshold, is greater than 20 decibels.Using be greater than it is high every
Wave multiplexer from degree can reduce the interference of Wave length of classics optical signal and Optical Supervisory Channel wavelength channels to quantum signal.This
It field, can also be by multiple devices it should be understood to the one skilled in the art that the wave multiplexer of high-isolation can be made of an individual device
Composition.
In a preferred embodiment, Optical Supervisory Channel processing unit 2024 supports single fiber bi-directional communication.Wave multiplexer
2027 are used for: bi-directional light monitoring and controlling channels wavelength channels are transmitted on different Optical Supervisory Channel wavelength in the first transmission fiber,
The transmission quantity wavelet length optical signal on the Optical Supervisory Channel wavelength in the second transmission fiber, the first transmission fiber and the second transmission light
Fine transmission fiber pairs of between communicating pair.
Above-described embodiment supports unidirectional QDK to provide quantum encryption and decryption functions for bidirectional WDM business.QDK technology be it is unidirectional,
I.e. one end send the other end receive, by interface realize both sides QKD quantum key negotiate, communicating pair can synchronization gain it is identical
Quantum key, realize symmetrical signal encryption and decryption.Meanwhile the embodiment supports OSC to use single fiber bi-directional communication mode,
It supports quantum radio frequency channel identical as OSC radio frequency channel at this time, uses the transmission fiber in a direction respectively.
For example, communicating pair (A and Z) uses a pair of of optical fiber (direction is A → Z and Z → A respectively), both sides' WDM classical communication
Respectively using the classical WDM wavelength region in two optical fiber.If OSC supports single fiber bi-directional communication, can be in an optical fiber
The wavelength that two different in (such as A → Z-direction) realizes the two-way OSC communication between A and Z, at this time in the optical fiber in the direction Z → A
Two OSC wavelength be not used, the wavelength that one of OSC wavelength is communicated as QKD between the two can be used at this time.It adopts
Wavelength selection can be optimized in this way, the interference to quantum wavelength is reduced, further increase system performance.
In a preferred embodiment, wavelength-division multiplex sending device 102 further includes control unit 2029, is set for completing
Standby management control function, and open interface is provided for upper layer network management and control unit, to support access to network management system and control single
Member receives the centralized management or control of upper layer network management or control unit, and provides information needed upwards as required.For quantum plus
Close business, control unit can also be responsible for configuring the encrypted work state of quantum cryptography business, and manage pool of keys.
In a preferred embodiment, control unit 2029 is used for:
According to the attenuation of transmission link and the minimal detectable power of Wave length of classics optical signal, Wave length of classics light is calculated
The minimum of signal sends power；
According to the receptible maximum of crosstalk of quantum key distribution unit institute in wavelength-division multiplex receiving device, wave multiplexer 2027 from
Wave length of classics is to channel-splitting filter in the isolation, wavelength-division multiplex receiving device of quantum wavelength from Wave length of classics to the isolation of quantum wavelength
Degree calculates the maximum of Wave length of classics optical signal and sends power；
It controls wave division multiplexing service processing unit 2025 and sends the power of Wave length of classics optical signal more than or equal to Wave length of classics
The minimum maximum transmission power for sending power and being less than or equal to Wave length of classics optical signal of optical signal；
According to the attenuation of transmission link and the minimal detectable power of Optical Supervisory Channel wavelength channels, light prison is calculated
It controls the minimum of channel wavelength optical signal and sends power；
According to the receptible maximum of crosstalk of quantum key distribution unit institute in wavelength-division multiplex receiving device, wave multiplexer 2027 from
Optical Supervisory Channel wavelength is to channel-splitting filter in the isolation, wavelength-division multiplex receiving device of quantum wavelength from Optical Supervisory Channel wavelength to amount
The isolation of wavelet length calculates the maximum of Optical Supervisory Channel wavelength channels and sends power；
It controls Optical Supervisory Channel processing unit 2023 and sends the power of Optical Supervisory Channel wavelength channels more than or equal to light prison
The minimum maximum for sending power and being less than or equal to Optical Supervisory Channel wavelength channels for controlling channel wavelength optical signal sends power.
In above-described embodiment, believed by monitoring and real-time control Wave length of classics optical signal and Optical Supervisory Channel wavelength light
Number, under the conditions of meeting transmission link power budget, Wave length of classics optical signal and Optical Supervisory Channel wavelength can be reduced as far as possible
The power of optical signal, to reduce the interference to quantum wavelength channels.
In a preferred embodiment, control unit 2029 is also used to:
Whether control wave division multiplexing service processing unit 2025 encrypts service signal using received quantum key.
Wherein, human configuration is carried out by network management system or introduces relevant automatic configuration agreement, control can be made single
Member completes be locally configured whether provide quantum encryption and decryption service.
The external interface used between the quantum encryption communication equipment and QKD equipment used different from existing scheme obtains close
The mode of key, the communication in the WDM equipment of the integrated QKD function of above-described embodiment between QKD and encryption and decryption board become board
Internal communication, quantum key required for WDM equipment quantum encryption and decryption are obtained by equipment internal communication, logical by board backboard
It is reliable now to have the characteristics that high reliablity, privacy are strong, the risk that external interface obtains key is avoided, is conducive to improve safety
Property and reliability.
On the other hand, above-described embodiment supports the fine transmission altogether of quantum QKD wavelength, OSC wavelength and classical communication wavelength business,
Be conducive to save valuable fiber resource.Synchronization required for being provided by OSC wavelength for QKD function and negotiated channel, avoid
Prepare dedicated synchronization for QKD and negotiate channel, is conducive to further decrease fiber resource occupancy, and avoid special construction
QKD is synchronous and negotiates network, reduces cost, improves existing wet end and affixes one's name to feasibility.
The wavelength-division multiplex receiving device of one embodiment of the invention is introduced below with reference to Fig. 3.
Fig. 3 shows the structural schematic diagram of the wavelength-division multiplex receiving device of one embodiment of the invention.As shown in figure 3, this
Wavelength-division multiplex receiving device 104 in embodiment includes:
Optical signal partial wave after multiplex is that quantum wavelength light is believed for receiving the optical signal after multiplex by channel-splitting filter 3041
Number, Optical Supervisory Channel wavelength channels and Wave length of classics optical signal, and quantum wavelength channels are sent to quantum key point
Optical Supervisory Channel wavelength channels are sent to Optical Supervisory Channel processing unit 3045, Wave length of classics light are believed by bill member 3043
Number it is sent to wave division multiplexing service processing unit 3047.
Wherein, the effect of channel-splitting filter is the partial wave of performance wavelet length, OSC wavelength and Wave length of classics.Channel-splitting filter is complete will be through
Allusion quotation wavelength of optical signal, osc light wavelength and quantum optical wavelength pass through corresponding port respectively, are assigned to corresponding signal processing list
Member.There are many kinds of the implementations of optical branching filter, such as deielectric-coating, AWG, PLC, WSS, etc., does not do special want in the present invention
It asks.
Optionally, it can choose the channel-splitting filter of high-isolation, reduce interference of the classical signals to quantum signal.Channel-splitting filter from
The isolation of Wave length of classics to quantum wavelength should be greater than first threshold, be greater than 20 decibels.Preferably, channel-splitting filter is from Classic Wave
The isolation for growing to quantum wavelength is greater than 60 decibels.Channel-splitting filter should be greater than from Optical Supervisory Channel wavelength to the isolation of quantum wavelength
Second threshold, second threshold here can be identical or different with first threshold, is greater than 20 decibels.Using greater than high isolation
The channel-splitting filter of degree can reduce the interference of Wave length of classics optical signal and Optical Supervisory Channel wavelength channels to quantum signal.
It, can be with it will be understood by those skilled in the art that the channel-splitting filter of high-isolation can be made of an individual device
It is made of multiple devices.
Quantum key distribution unit 3043, for being monitored and being believed using light from 3041 reception amount wavelet length optical signal of channel-splitting filter
The negotiation channel that road processing unit 3045 provides carries out protocol negotiation, the synchronization provided using Optical Supervisory Channel processing unit 3045
It is synchronous that signal carries out signal, and to 3047 quantum key of wave division multiplexing service processing unit.
Wherein, the effect of quantum key distribution unit is to provide QKD receive capabilities, and adds to need to provide quantum in OTM
The board of decryption service provides quantum key.For example, using symmetric cryptography mode, encryption and decryption keys phase
Together.
Optical Supervisory Channel processing unit 3045 is used to receive Optical Supervisory Channel wavelength channels from channel-splitting filter 3041, and is
Quantum key distribution unit 3043, which provides, negotiates channel and synchronization signal.
Wherein, the effect of Optical Supervisory Channel processing unit is to provide the OSC communication service of traditional wdm system, and is
QKD unit, which provides, negotiates channel and synchronization signal.
Wave division multiplexing service processing unit 3047, it is close from quantum for receiving Wave length of classics optical signal from channel-splitting filter 3041
Key Dispatching Unit 3043 receives quantum key, and is decrypted and is solved to Wave length of classics optical signal using received quantum key
Close service signal.
Wherein, the effect of wave division multiplexing service processing unit is to provide the business processing and WDM transmission function of traditional WDM equipment
Can, such as the functions such as partial wave, amplification and power control of Wave length of classics, and when needing to provide the service of quantum encryption and decryption from QKD
Unit obtains quantum key.
In a preferred embodiment, Optical Supervisory Channel processing unit supports single fiber bi-directional communication；
Channel-splitting filter 3041 is used for: transmitting bi-directional light monitoring letter on different Optical Supervisory Channel wavelength in the first transmission fiber
Road wavelength channels, the transmission quantity wavelet length optical signal on the Optical Supervisory Channel wavelength in the second transmission fiber, the first transmission light
Fine and pairs of between communicating pair the second transmission fiber transmission fiber.
In a preferred embodiment, wavelength-division multiplex receiving device 104 further includes control unit 3049, is set for completing
Standby management control function, and open interface is provided for upper layer network management and control unit.For example, control unit can monitor each unit
Working condition, for quantum cryptography business, control unit can also be responsible for configuring the encrypted work state of quantum cryptography business, i.e.,
Whether it is decrypted using the quantum key of acquisition, and manages pool of keys.
The external interface used between the quantum encryption communication equipment and QKD equipment used different from existing scheme obtains close
The mode of key, the communication in the WDM equipment of the integrated QKD function of above-described embodiment between QKD and encryption and decryption board become board
Internal communication, quantum key required for WDM equipment quantum encryption and decryption are obtained by equipment internal communication, logical by board backboard
It is reliable now to have the characteristics that high reliablity, privacy are strong, the risk that external interface obtains key is avoided, is conducive to improve safety
Property and reliability.
On the other hand, above-described embodiment supports the fine transmission altogether of quantum QKD wavelength, OSC wavelength and classical communication wavelength business,
Be conducive to save valuable fiber resource.Synchronization required for being provided by OSC wavelength for QKD function and negotiated channel, avoid
Prepare dedicated synchronization for QKD and negotiate channel, is conducive to further decrease fiber resource occupancy, and avoid special construction
QKD is synchronous and negotiates network, reduces cost, improves existing wet end and affixes one's name to feasibility.
The wavelength-division multiplex trunking of one embodiment of the invention is introduced below with reference to Fig. 4.
Fig. 4 shows the structural schematic diagram of the wavelength-division multiplex trunking of one embodiment of the invention.As shown in figure 4, this
Wavelength-division multiplex trunking 106 in embodiment includes:
Optical signal partial wave after multiplex is that quantum wavelength light is believed for receiving the optical signal after multiplex by channel-splitting filter 4061
Number, Optical Supervisory Channel wavelength channels and Wave length of classics optical signal, and quantum wavelength channels are sent in quantum key
After unit 4062, Optical Supervisory Channel wavelength channels are sent to Optical Supervisory Channel relay unit 4063, Wave length of classics light is believed
Number it is sent to wave division multiplexing service relay unit 4064.
Wherein, the effect of channel-splitting filter is the partial wave of performance wavelet length, OSC wavelength and Wave length of classics.
Optionally, it can choose the channel-splitting filter of high-isolation, reduce interference of the classical signals to quantum signal.Channel-splitting filter from
The isolation of Wave length of classics to quantum wavelength should be greater than first threshold, be greater than 20 decibels.Preferably, channel-splitting filter is from Classic Wave
The isolation for growing to quantum wavelength is greater than 60 decibels.Channel-splitting filter should be greater than from Optical Supervisory Channel wavelength to the isolation of quantum wavelength
Second threshold, second threshold here can be identical or different with first threshold, is greater than 20 decibels.Using greater than high isolation
The channel-splitting filter of degree can reduce the interference of Wave length of classics optical signal and Optical Supervisory Channel wavelength channels to quantum signal.
It, can be with it will be understood by those skilled in the art that the channel-splitting filter of high-isolation can be made of an individual device
It is made of multiple devices.
Quantum key distribution relay unit 4062, for being quantum wave from 4061 reception amount wavelet length optical signal of channel-splitting filter
Long optical signal provides relay function, and quantum wavelength channels are sent to wave multiplexer 4065.
Wherein, the effect of QKD unit is to provide QKD relay function.
Optical Supervisory Channel relay unit 4063 is light for receiving Optical Supervisory Channel wavelength channels from channel-splitting filter 4061
Monitoring and controlling channels optical signal provides relay function, and Optical Supervisory Channel optical signal is sent to wave multiplexer 4065.
Wherein, the effect of Optical Supervisory Channel relay unit is to provide the OSC communication service of traditional wdm system, and be
QKD unit, which provides, negotiates channel and synchronization signal.
Wave division multiplexing service relay unit 4064 is Classic Wave for receiving Wave length of classics optical signal from channel-splitting filter 4061
Long optical signal provides relay function, and Wave length of classics optical signal is sent to wave multiplexer 4065.
Optionally, wave division multiplexing service relay unit 4064 is image intensifer unit, for providing Wave length of classics optical signal
Optical signal amplification relay function.
Wherein, image intensifer unit provides optical signal amplification function for Wave length of classics, does not need suitable for classical WDM radio frequency channel
The relay node of photoelectricity photo reversal, Wave length of classics performance are enough the case where supporting all-optical transmission.
Optionally, wave division multiplexing service relay unit 4064 is photoelectricity photo reversal unit, for providing Wave length of classics light letter
Number photoelectricity photo reversal relay function.
Wherein, image intensifer unit provides photoelectricity photo reversal relay function for Wave length of classics, and being suitable for classics WDM radio frequency channel needs
The relay node of photoelectricity photo reversal is wanted, Wave length of classics is not enough to the case where supporting all-optical transmission.
Wave multiplexer 4065, for believing quantum wavelength channels, Optical Supervisory Channel wavelength channels and Wave length of classics light
Number multiplex is carried out, and transmits the optical signal after multiplex.
Wherein, the effect of wave multiplexer is the multiplex of performance wavelet length, OSC wavelength and Wave length of classics.
Optionally, it can choose the wave multiplexer of high-isolation, reduce interference of the classical signals to quantum signal.Wave multiplexer from
The isolation of Wave length of classics to quantum wavelength should be greater than first threshold, be greater than 20 decibels.Preferably, wave multiplexer is from Classic Wave
The isolation for growing to quantum wavelength is greater than 60 decibels.Wave multiplexer should be greater than from Optical Supervisory Channel wavelength to the isolation of quantum wavelength
Second threshold, second threshold here can be identical or different with first threshold, is greater than 20 decibels.Using greater than high isolation
The wave multiplexer of degree can reduce the interference of Wave length of classics optical signal and Optical Supervisory Channel wavelength channels to quantum signal.
It, can be with it will be understood by those skilled in the art that the wave multiplexer of high-isolation can be made of an individual device
It is made of multiple devices.
In a preferred embodiment, Optical Supervisory Channel relay unit supports single fiber bi-directional communication.Wave multiplexer and partial wave
Device is used for: bi-directional light monitoring and controlling channels wavelength channels are transmitted on different Optical Supervisory Channel wavelength in the first transmission fiber,
Transmission quantity wavelet length optical signal on Optical Supervisory Channel wavelength in second transmission fiber, the first transmission fiber and the second transmission fiber
The pairs of transmission fiber between communicating pair.
Optionally, wavelength-division multiplex trunking 106 can also include control unit 4066, for completing equipment management control
Function, and open interface is provided for upper layer network management and control unit.
The external interface used between the quantum encryption communication equipment and QKD equipment used different from existing scheme obtains close
The mode of key, the communication in the WDM equipment of the integrated QKD function of above-described embodiment between QKD and encryption and decryption board become board
Internal communication, quantum key required for WDM equipment quantum encryption and decryption are obtained by equipment internal communication, logical by board backboard
It is reliable now to have the characteristics that high reliablity, privacy are strong, the risk that external interface obtains key is avoided, is conducive to improve safety
Property and reliability.
On the other hand, above-described embodiment supports the fine transmission altogether of quantum QKD wavelength, OSC wavelength and classical communication wavelength business,
Be conducive to save valuable fiber resource.Synchronization required for being provided by OSC wavelength for QKD function and negotiated channel, avoid
Prepare dedicated synchronization for QKD and negotiate channel, is conducive to further decrease fiber resource occupancy, and avoid special construction
QKD is synchronous and negotiates network, reduces cost, improves existing wet end and affixes one's name to feasibility.
Wavelength-division multiplex sending device 102, wavelength-division multiplex receiving device 104 in the present invention, wavelength-division multiplex trunking 106
Between workflow are as follows:
Under the control of control unit 2029, quantum key distribution unit 2021 is to wave division multiplexing service processing unit 2025
Quantum key, and signal synchronization and negotiated channel are carried out by Optical Supervisory Channel wavelength.Quantum key distribution unit 2021
To 2027 quantum wavelength channels of wave multiplexer, Optical Supervisory Channel processing unit 2023 sends light monitoring letter to wave multiplexer 2027
Road wavelength channels, wave division multiplexing service processing unit 2025 send Wave length of classics optical signal to wave multiplexer 2027.Wave multiplexer
2027 carry out multiplex, and the optical signal after multiplex is transmitted to channel-splitting filter 4061 through optical fiber.
Under the control of control unit 4066, the optical signal after multiplex is carried out partial wave by channel-splitting filter 4061, by quantum wavelength
Optical signal is sent to quantum key distribution relay unit 4062, and Optical Supervisory Channel wavelength channels are sent in Optical Supervisory Channel
After unit 4063, Wave length of classics optical signal is sent to wave division multiplexing service relay unit 4064.Quantum key distribution relaying is single
After member 4062, Optical Supervisory Channel relay unit 4063 and wave division multiplexing service relay unit 4064 provide relay services respectively,
Quantum key distribution relay unit 4062 is to 4065 quantum wavelength channels of wave multiplexer, Optical Supervisory Channel relay unit 4063
Optical Supervisory Channel wavelength channels are sent to wave multiplexer 4065, wave division multiplexing service relay unit 4064 is sent to wave multiplexer 4065
Wave length of classics optical signal.Wave multiplexer 4065 carries out multiplex, and the optical signal after multiplex is transmitted to channel-splitting filter 3041 through optical fiber.
Optical signal after multiplex is carried out partial wave by channel-splitting filter 4061, and quantum wavelength channels are sent to quantum key distribution
Optical Supervisory Channel wavelength channels are sent to Optical Supervisory Channel processing unit 3045 by unit 3043, by Wave length of classics optical signal
It is sent to wave division multiplexing service processing unit 3047.Under the control of control unit 3049, quantum key distribution unit 4062 to
4064 quantum key of wave division multiplexing service processing unit, and signal synchronization is carried out by Optical Supervisory Channel wavelength and negotiates letter
Road.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The calculating implemented in non-transient storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) can be used
The form of machine program product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (16)
1. a kind of wavelength-division multiplex sending device characterized by comprising
Quantum key distribution unit is used for wave division multiplexing service processing unit quantum key, at Optical Supervisory Channel
It manages the negotiation channel that unit provides and carries out protocol negotiation, carry out signal using the synchronization signal that Optical Supervisory Channel processing unit provides
It is synchronous, and to wave multiplexer quantum wavelength channels；
Optical Supervisory Channel processing unit for sending Optical Supervisory Channel wavelength channels to wave multiplexer, and is quantum key distribution
Unit, which provides, negotiates channel and synchronization signal；
Wave division multiplexing service processing unit, it is close using received quantum for receiving quantum key from quantum key distribution unit
After key encrypts service signal, Wave length of classics optical signal is sent to wave multiplexer；
Wave multiplexer, for closing quantum wavelength channels, Optical Supervisory Channel wavelength channels and Wave length of classics optical signal
Wave, and transmit the optical signal after multiplex.
2. wavelength-division multiplex sending device as described in claim 1, which is characterized in that
The Optical Supervisory Channel processing unit supports single fiber bi-directional communication；
The wave multiplexer is used for: transmitting bi-directional light monitoring and controlling channels wave on different Optical Supervisory Channel wavelength in the first transmission fiber
Long optical signal, the transmission quantity wavelet length optical signal on the Optical Supervisory Channel wavelength in the second transmission fiber, the first transmission light
The fine transmission fiber pairs of between communicating pair with second transmission fiber.
3. wavelength-division multiplex sending device as described in claim 1, which is characterized in that the wave multiplexer is from Wave length of classics to quantum
The isolation of wavelength is greater than first threshold, and the wave multiplexer is greater than second from Optical Supervisory Channel wavelength to the isolation of quantum wavelength
Threshold value.
4. wavelength-division multiplex sending device as described in claim 1, which is characterized in that the wavelength-division multiplex sending device further includes
Control unit is used for:
According to the attenuation of transmission link and the minimal detectable power of Wave length of classics optical signal, Wave length of classics optical signal is calculated
Minimum send power；
According to the receptible maximum of crosstalk of quantum key distribution unit institute in wavelength-division multiplex receiving device, the wave multiplexer from classics
Wavelength to channel-splitting filter in the isolation, wavelength-division multiplex receiving device of quantum wavelength from Wave length of classics to the isolation of quantum wavelength,
It calculates the maximum of Wave length of classics optical signal and sends power；
It controls wave division multiplexing service processing unit and sends the power of Wave length of classics optical signal more than or equal to Wave length of classics optical signal
Minimum, which sends power and is less than or equal to the maximum of Wave length of classics optical signal, sends power；
According to the attenuation of transmission link and the minimal detectable power of Optical Supervisory Channel wavelength channels, light monitoring letter is calculated
The minimum of road wavelength channels sends power；
It is supervised according to the receptible maximum of crosstalk of quantum key distribution unit institute, the wave multiplexer in wavelength-division multiplex receiving device from light
Control channel wavelength is to channel-splitting filter in the isolation, wavelength-division multiplex receiving device of quantum wavelength from Optical Supervisory Channel wavelength to quantum wave
Long isolation calculates the maximum of Optical Supervisory Channel wavelength channels and sends power；
It controls Optical Supervisory Channel processing unit and sends the power of Optical Supervisory Channel wavelength channels more than or equal to Optical Supervisory Channel wave
The minimum maximum transmission power for sending power and being less than or equal to Optical Supervisory Channel wavelength channels of long optical signal.
5. wavelength-division multiplex sending device as claimed in claim 4, which is characterized in that described control unit is also used to:
Whether control wave division multiplexing service processing unit encrypts service signal using received quantum key.
6. a kind of wavelength-division multiplex receiving device characterized by comprising
Optical signal partial wave after multiplex is that quantum wavelength channels, light monitor for receiving the optical signal after multiplex by channel-splitting filter
Channel wavelength optical signal and Wave length of classics optical signal, and quantum wavelength channels are sent to quantum key distribution unit, it will
Optical Supervisory Channel wavelength channels are sent to Optical Supervisory Channel processing unit, and Wave length of classics optical signal is sent to wavelength-division multiplex industry
Business processing unit；
Quantum key distribution unit, for being mentioned using Optical Supervisory Channel processing unit from channel-splitting filter reception amount wavelet length optical signal
The negotiation channel of confession carries out protocol negotiation, carries out signal using the synchronization signal that Optical Supervisory Channel processing unit provides and synchronizes, and
To wave division multiplexing service processing unit quantum key；
Optical Supervisory Channel processing unit for receiving Optical Supervisory Channel wavelength channels from channel-splitting filter, and is quantum key distribution
Unit, which provides, negotiates channel and synchronization signal；
Wave division multiplexing service processing unit connects for receiving Wave length of classics optical signal from channel-splitting filter from quantum key distribution unit
Quantum key is received, and Wave length of classics optical signal is decrypted using received quantum key the service signal decrypted.
7. wavelength-division multiplex receiving device as claimed in claim 6, which is characterized in that the Optical Supervisory Channel processing unit is supported
Single fiber bi-directional communication；
The channel-splitting filter is used for: transmitting bi-directional light monitoring and controlling channels wave on different Optical Supervisory Channel wavelength in the first transmission fiber
Long optical signal, the transmission quantity wavelet length optical signal on the Optical Supervisory Channel wavelength in the second transmission fiber, the first transmission light
The fine transmission fiber pairs of between communicating pair with second transmission fiber.
8. wavelength-division multiplex receiving device as claimed in claim 6, which is characterized in that the channel-splitting filter is from Wave length of classics to quantum
The isolation of wavelength is greater than first threshold, and the channel-splitting filter is greater than second from Optical Supervisory Channel wavelength to the isolation of quantum wavelength
Threshold value.
9. wavelength-division multiplex receiving device as claimed in claim 6, which is characterized in that the wavelength-division multiplex receiving device also wraps
It includes:
Control unit, for controlling whether wave division multiplexing service processing unit is decrypted using the quantum key of acquisition.
10. a kind of wavelength-division multiplex trunking characterized by comprising
Optical signal partial wave after multiplex is that quantum wavelength channels, light monitor for receiving the optical signal after multiplex by channel-splitting filter
Channel wavelength optical signal and Wave length of classics optical signal, and quantum wavelength channels are sent to quantum key relay unit, it will
Optical Supervisory Channel wavelength channels are sent to Optical Supervisory Channel relay unit, and Wave length of classics optical signal is sent to wavelength-division multiplex industry
Business relay unit；
Quantum key relay unit, for providing relaying for quantum wavelength channels from channel-splitting filter reception amount wavelet length optical signal
Function, and quantum wavelength channels are sent to wave multiplexer；
Optical Supervisory Channel relay unit is believed for receiving Optical Supervisory Channel wavelength channels from channel-splitting filter for Optical Supervisory Channel light
Number relay function is provided, and Optical Supervisory Channel optical signal is sent to wave multiplexer；
Wave division multiplexing service relay unit is provided for receiving Wave length of classics optical signal from channel-splitting filter for Wave length of classics optical signal
Relay function, and Wave length of classics optical signal is sent to wave multiplexer；
Wave multiplexer, for closing quantum wavelength channels, Optical Supervisory Channel wavelength channels and Wave length of classics optical signal
Wave, and transmit the optical signal after multiplex.
11. wavelength-division multiplex sending device as claimed in claim 10, which is characterized in that
The Optical Supervisory Channel relay unit supports single fiber bi-directional communication；
The wave multiplexer and the channel-splitting filter are used for: being transmitted on different Optical Supervisory Channel wavelength in the first transmission fiber double
To Optical Supervisory Channel wavelength channels, the transmission quantity wavelet length optical signal on the Optical Supervisory Channel wavelength in the second transmission fiber,
First transmission fiber and second transmission fiber transmission fiber pairs of between communicating pair.
12. wavelength-division multiplex sending device as claimed in claim 10, which is characterized in that the wave multiplexer is from Wave length of classics to amount
The isolation of wavelet length is greater than first threshold, and the wave multiplexer is greater than the from Optical Supervisory Channel wavelength to the isolation of quantum wavelength
Two threshold values, the channel-splitting filter are greater than first threshold from Wave length of classics to the isolation of quantum wavelength, and the channel-splitting filter is monitored from light
The isolation of channel wavelength to quantum wavelength is greater than second threshold.
13. wavelength-division multiplex trunking as claimed in claim 10, which is characterized in that the wave division multiplexing service relay unit
For image intensifer unit, for providing the optical signal amplification relay function of Wave length of classics optical signal.
14. wavelength-division multiplex trunking as claimed in claim 10, which is characterized in that the wave division multiplexing service relay unit
For photoelectricity photo reversal unit, for providing the photoelectricity photo reversal relay function of Wave length of classics optical signal.
15. a kind of wave division multiplexing transmission system, which is characterized in that multiple including the wavelength-division as described in any one of claims 1 to 5
With sending device, and the wavelength-division multiplex receiving device as described in any one of claim 6 to 9.
16. wave division multiplexing transmission system as claimed in claim 15, which is characterized in that the wave division multiplexing transmission system also wraps
Include the wavelength-division multiplex trunking as described in any one of claim 10 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710720820.1A CN109428665B (en) | 2017-08-22 | 2017-08-22 | Wavelength division multiplexing transmission device, reception device, relay device, and transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710720820.1A CN109428665B (en) | 2017-08-22 | 2017-08-22 | Wavelength division multiplexing transmission device, reception device, relay device, and transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109428665A true CN109428665A (en) | 2019-03-05 |
| CN109428665B CN109428665B (en) | 2020-10-23 |
Family
ID=65498057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710720820.1A Active CN109428665B (en) | 2017-08-22 | 2017-08-22 | Wavelength division multiplexing transmission device, reception device, relay device, and transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109428665B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110138449A (en) * | 2019-05-15 | 2019-08-16 | 重庆电子工程职业学院 | A kind of vehicle electronics communication system based on fiber optic communication |
| CN110212985A (en) * | 2019-05-28 | 2019-09-06 | 上海交通大学 | Optical fiber time frequency and data joint transmission system and method |
| CN110213552A (en) * | 2019-06-25 | 2019-09-06 | 桂林电子科技大学 | A kind of wide-band communication system for transmission of video |
| CN111200492A (en) * | 2019-12-30 | 2020-05-26 | 国网北京市电力公司 | Quantum encryption method, device and equipment |
| CN111245618A (en) * | 2020-03-27 | 2020-06-05 | 江苏亨通问天量子信息研究院有限公司 | Internet of things secret communication system and method based on quantum key |
| CN111478746A (en) * | 2020-04-07 | 2020-07-31 | 中国信息通信研究院 | Quantum key distribution and optical communication system hybrid networking method and device |
| CN112217593A (en) * | 2019-07-12 | 2021-01-12 | 中国移动通信有限公司研究院 | Management control method and equipment for new forwarding network |
| CN113541795A (en) * | 2020-04-17 | 2021-10-22 | 烽火通信科技股份有限公司 | Single-fiber bidirectional implementation method and equipment for OSC channel of wavelength division system |
| CN113556183A (en) * | 2020-04-26 | 2021-10-26 | 科大国盾量子技术股份有限公司 | Quantum communication system |
| CN115021859A (en) * | 2021-03-05 | 2022-09-06 | 华为技术有限公司 | Wavelength configuration device, system and method |
| CN118368024A (en) * | 2024-06-19 | 2024-07-19 | 湖南军威联航科技有限公司 | Data processing method and system based on wavelength division multiplexing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070065155A1 (en) * | 2005-09-19 | 2007-03-22 | The Chinese University Of Hong Kong | System and methods for quantum key distribution over WDM links |
| CN101030879A (en) * | 2006-02-28 | 2007-09-05 | 中兴通讯股份有限公司 | System for transmitting single-fiber-optic two-way wavelength division multiplexing and its protection |
| CN101292455A (en) * | 2005-09-30 | 2008-10-22 | 威瑞森全球商务有限责任公司 | Quantum key distribution system |
| CN103840905A (en) * | 2014-02-20 | 2014-06-04 | 安徽问天量子科技股份有限公司 | Full optical fiber communication system and method of QKD system |
| CN105185814A (en) * | 2015-09-24 | 2015-12-23 | 京东方科技集团股份有限公司 | Organic electroluminescence displayer |
| CN106533565A (en) * | 2016-11-28 | 2017-03-22 | 工业和信息化部电信研究院 | Quantum secure communication method and apparatus |
-
2017
- 2017-08-22 CN CN201710720820.1A patent/CN109428665B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070065155A1 (en) * | 2005-09-19 | 2007-03-22 | The Chinese University Of Hong Kong | System and methods for quantum key distribution over WDM links |
| CN101292455A (en) * | 2005-09-30 | 2008-10-22 | 威瑞森全球商务有限责任公司 | Quantum key distribution system |
| CN101030879A (en) * | 2006-02-28 | 2007-09-05 | 中兴通讯股份有限公司 | System for transmitting single-fiber-optic two-way wavelength division multiplexing and its protection |
| CN103840905A (en) * | 2014-02-20 | 2014-06-04 | 安徽问天量子科技股份有限公司 | Full optical fiber communication system and method of QKD system |
| CN105185814A (en) * | 2015-09-24 | 2015-12-23 | 京东方科技集团股份有限公司 | Organic electroluminescence displayer |
| CN106533565A (en) * | 2016-11-28 | 2017-03-22 | 工业和信息化部电信研究院 | Quantum secure communication method and apparatus |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110138449A (en) * | 2019-05-15 | 2019-08-16 | 重庆电子工程职业学院 | A kind of vehicle electronics communication system based on fiber optic communication |
| CN110212985B (en) * | 2019-05-28 | 2021-07-27 | 上海交通大学 | Optical fiber time frequency and data combined transmission system and method |
| CN110212985A (en) * | 2019-05-28 | 2019-09-06 | 上海交通大学 | Optical fiber time frequency and data joint transmission system and method |
| US11146334B2 (en) | 2019-05-28 | 2021-10-12 | Shanghai Jiao Tong University | System and method for fiber-optic time, frequency and data joint transmission |
| WO2020238503A1 (en) * | 2019-05-28 | 2020-12-03 | 上海交通大学 | System and method for joint transmission of optical fiber time-frequency and data |
| CN110213552A (en) * | 2019-06-25 | 2019-09-06 | 桂林电子科技大学 | A kind of wide-band communication system for transmission of video |
| CN112217593A (en) * | 2019-07-12 | 2021-01-12 | 中国移动通信有限公司研究院 | Management control method and equipment for new forwarding network |
| CN111200492A (en) * | 2019-12-30 | 2020-05-26 | 国网北京市电力公司 | Quantum encryption method, device and equipment |
| CN111245618A (en) * | 2020-03-27 | 2020-06-05 | 江苏亨通问天量子信息研究院有限公司 | Internet of things secret communication system and method based on quantum key |
| CN111245618B (en) * | 2020-03-27 | 2022-09-06 | 江苏亨通问天量子信息研究院有限公司 | Internet of things secret communication system and method based on quantum key |
| CN111478746A (en) * | 2020-04-07 | 2020-07-31 | 中国信息通信研究院 | Quantum key distribution and optical communication system hybrid networking method and device |
| CN113541795A (en) * | 2020-04-17 | 2021-10-22 | 烽火通信科技股份有限公司 | Single-fiber bidirectional implementation method and equipment for OSC channel of wavelength division system |
| CN113541795B (en) * | 2020-04-17 | 2022-04-15 | 烽火通信科技股份有限公司 | Single-fiber bidirectional implementation method and equipment for OSC channel of wavelength division system |
| CN113556183A (en) * | 2020-04-26 | 2021-10-26 | 科大国盾量子技术股份有限公司 | Quantum communication system |
| CN113556183B (en) * | 2020-04-26 | 2022-03-18 | 科大国盾量子技术股份有限公司 | Quantum communication system |
| CN115021859A (en) * | 2021-03-05 | 2022-09-06 | 华为技术有限公司 | Wavelength configuration device, system and method |
| CN118368024A (en) * | 2024-06-19 | 2024-07-19 | 湖南军威联航科技有限公司 | Data processing method and system based on wavelength division multiplexing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109428665B (en) | 2020-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109428665A (en) | Wavelength-division multiplex sending device, receiving device, trunking and Transmission system | |
| CN109302288B (en) | Quantum secret communication network system based on quantum key distribution technology and application thereof | |
| Cao et al. | KaaS: Key as a service over quantum key distribution integrated optical networks | |
| CN108111305B (en) | Multi-type quantum terminal compatible converged network access system and method | |
| CN107294960B (en) | Security guarantee method for software defined network control channel | |
| CN208986950U (en) | A kind of quantum secret communication network system based on quantum key distribution technology | |
| CN101346006A (en) | Radio frequency passive optical network with broadband wireless and optical transmission amalgamation access | |
| CN110247705B (en) | Multi-core fiber-based optical quantum fusion network implementation method and system | |
| CN107579820B (en) | Synchronization device and synchronization method for multi-channel quantum key distribution system | |
| CN108234049B (en) | Terminal communicating method, device, storage medium and computer equipment | |
| CN106878006B (en) | Quantum key channel transmission method and system based on Optical Time Division Multiplexing | |
| CN108512623A (en) | The conjunction fibre QKD system and its transmission method of quantum channel and classical channel | |
| CN106787163A (en) | A kind of centralized configuration and long distance control system for substation network communication device | |
| CN105592455A (en) | Secret key updating method and apparatus, and main transmission node TP | |
| CN104486317A (en) | Common-optical fiber transmission method for multiuser quantum key distribution of power systems | |
| CN109842442B (en) | Quantum key service method taking airport as regional center | |
| CN113542942B (en) | All-optical network architecture construction method based on SD-OTN | |
| CN109905234A (en) | A kind of quantum key distribution and optical communication system fine transmission method and device altogether | |
| CN207442862U (en) | For the sychronisation of multichannel quantum key distribution system | |
| CN109274491A (en) | Multi-user quantum key distribution network device and method | |
| Lord et al. | London quantum-secured metro network | |
| CN114374901B (en) | Communication method, device and optical network system for integrating QKD and optical access network | |
| CN207625571U (en) | The converged network access system of polymorphic type quantum terminal compatibility | |
| CN212463227U (en) | Vehicle-mounted communication device based on quantum encryption | |
| Yu et al. | Optimization of hierarchical routing and resource allocation for power communication networks with QKD |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |