A wavelength configuration device, system and wavelength configuration method

Abstract

The embodiments of the present application provide a wavelength configuration device, system and wavelength configuration method. The wavelength configuration system includes an electrical layer signal processing device and a wavelength combining and demultiplexing device. The wavelength combining and demultiplexing device indicates the designated wavelength to be configured by the electrical layer signal processing device through an optical signal. After receiving the optical signal, the electrical layer signal processing device automatically configures the wavelength of the optical transceiver interface. The wavelength configuration system automatically completes the wavelength configuration without the need for a complex and error-prone manual configuration process.

Description

Technical Field

[0001] The present application relates to the field of optical communication technology, and in particular to a wavelength configuration device, system and wavelength configuration method. Background Art

[0002] Dense wavelength division multiplexing (DWDM) technology can transmit a group of different wavelengths of light through a single optical fiber, which can improve the transmission bandwidth of the optical fiber backbone network. More precisely, DWDM technology multiplexes the tight spectral spacing of a single optical fiber carrier in a single optical fiber to utilize the achievable transmission performance (for example, to achieve the minimum dispersion or attenuation). Under a given information transmission capacity, the total number of optical fibers required can be reduced.

[0003] At present, the typical DWDM networking structure includes the electrical layer board of the wavelength division multiplexing system (such as the optical transport unit (OTU) board), the wavelength combiner and splitter board, the optical supervisory channel (OSC) board, etc. Among them, the line port wavelength of the electrical layer board of the wavelength division multiplexing system must be strictly consistent with the port wavelength of the wavelength combiner and splitter board. Otherwise, the services in the DWDM system cannot be connected. Therefore, when starting the network, it is necessary to manually configure the line port wavelength of the electrical layer board of the wavelength division multiplexing system, and manually configure the port wavelength of the wavelength combiner and splitter board connected to the electrical layer board of the wavelength division multiplexing system, so as to ensure the correct connection of the optical fiber. At present, the line port wavelength of the electrical layer board of the wavelength division multiplexing system relies on manual configuration, which is time-consuming and has a high probability of error. Summary of the invention

[0004] The embodiments of the present application provide a wavelength configuration device, system and wavelength configuration method. The wavelength configuration method realizes the automatic wavelength configuration of the electrical layer board of the wavelength division multiplexing system, which is conducive to completing the wavelength configuration faster and more accurately.

[0005] In a first aspect, an embodiment of the present application provides a wavelength configuration system. The wavelength configuration system includes an electrical layer signal processing device and a wavelength combining and demultiplexing device. The wavelength combining and demultiplexing device is used to send an optical signal to the electrical layer signal processing device, and the optical signal is used to indicate a specified wavelength to be configured by the electrical layer signal processing device. The electrical layer signal processing device is used to obtain the specified wavelength indicated by the optical signal. The electrical layer signal processing device is also used to configure the wavelength of the optical transceiver interface connected to the wavelength combining and demultiplexing device in the electrical layer signal processing device to the specified wavelength indicated by the optical signal.

[0006] The electrical layer signal processing device automatically configures the wavelength of the corresponding optical transceiver interface after receiving the optical signal sent by the wavelength combining and decomposing device. The wavelength configuration system does not require a complex and error-prone manual configuration process, and completes the wavelength configuration more accurately in a shorter time.

[0007] In a possible design, the electrical layer signal processing device is used to obtain wavelength information carried by the optical signal. The wavelength information is used to indicate a specified wavelength or an identifier of a specified wavelength. It can be seen that the electrical layer signal processing device can obtain the specified wavelength or an identifier of a specified wavelength through the wavelength information.

[0008] In one possible design, the wavelength information includes a starting position and a specified wavelength; or, the wavelength information includes an identifier of the starting position and the specified wavelength.

[0009] In a possible design, the wavelength information also includes a verification position. It can be seen that the electrical layer signal processing device can verify the demodulated wavelength information according to the verification information carried by the verification position, thereby improving the accuracy of the demodulated information.

[0010] In one possible design, the wavelength combining and demultiplexing device includes a single wavelength tunable light source. The wavelength tunable light source is used to generate an optical signal indicating a specified wavelength. It can be seen that the wavelength combining and demultiplexing device can use a wavelength tunable light source to specify different wavelengths for different optical transceiver interfaces.

[0011] In one possible design, the wavelength combining and demultiplexing device includes multiple light sources. The multiple light sources are used to generate optical signals indicating the specified wavelengths, and the optical signals indicating the specified wavelengths cover incompletely overlapping wavelength bands. It can be seen that the wavelength combining and demultiplexing device can also use multiple light sources to specify different wavelengths for different optical transceiver interfaces.

[0012] In a possible design, the wavelength combining and demultiplexing device further includes a combiner. The combiner is used to combine multiple optical signals generated by multiple light sources. It can be seen that a combiner can be added to the wavelength combining and demultiplexing device to couple the optical signals of multiple light sources into the same optical fiber for transmission.

[0013] In a second aspect, an embodiment of the present application provides an electrical layer signal processing device. The electrical layer signal processing device includes a processor and an optical transceiver interface. The optical transceiver interface is used to receive an optical signal from a wavelength combining and demultiplexing device. The optical signal is used to indicate a specified wavelength to be configured for the electrical layer signal processing device. The processor is used to obtain the specified wavelength indicated by the optical signal. The processor is also used to configure the wavelength of the optical transceiver interface connected to the wavelength combining and demultiplexing device in the electrical layer signal processing device to the specified wavelength indicated by the optical signal.

[0014] It can be seen that the electrical layer signal processing device automatically configures the wavelength of the optical transceiver interface after receiving the optical signal sent by the wavelength combining and decomposing device, and completes the wavelength configuration faster and more accurately.

[0015] In one possible design, the processor is used to obtain wavelength information carried by the optical signal. The wavelength information includes a starting position and a specified wavelength, or the wavelength information includes an identifier of the starting position and the specified wavelength. The wavelength information may also include a check position. For the starting position, the specified wavelength, the identifier of the specified wavelength, and the check position, please refer to the corresponding description in the first aspect, which will not be repeated here.

[0016] In a third aspect, an embodiment of the present application provides a wavelength combining and demultiplexing device. The wavelength combining and demultiplexing device includes a light source and an optical transceiver interface. The light source is used to generate an optical signal. The optical signal is used to indicate a specified wavelength to be configured by an electrical layer signal processing device. The optical transceiver interface is used to send an optical signal to the electrical layer signal processing device.

[0017] It can be seen that the wavelength combining and decomposing device indicates the specified wavelength to the electrical layer signal processing device through the optical signal, which is conducive to the electrical layer signal processing device automatically configuring the wavelength of the optical transceiver interface to be the specified wavelength.

[0018] In a possible design, the wavelength combining and demultiplexing device further includes a processor. The processor is used to generate wavelength information, and the wavelength information includes a starting position and a specified wavelength, or the wavelength information includes an identifier of the starting position and the specified wavelength. The wavelength information may also include a check position. For the starting position, the specified wavelength, the identifier of the specified wavelength, and the check position, please refer to the corresponding description in the first aspect, which will not be repeated here.

[0019] In a possible design, the light source of the wavelength combining and decomposing device is a wavelength tunable light source, which is used to generate an optical signal indicating a specified wavelength.

[0020] In a possible design, the light source of the wavelength combining and decomposing device includes a plurality of light sources. The plurality of light sources are used to generate optical signals indicating a specified wavelength, and the optical signals indicating the specified wavelength cover wavelength bands that do not completely overlap.

[0021] In a possible design, the wave combining and decomposing device further includes a wave combiner. The wave combiner is used to combine multiple optical signals generated by multiple light sources.

[0022] In a fourth aspect, an embodiment of the present application provides a wavelength configuration method. The wavelength configuration method is applied to the wavelength configuration system as shown in the first aspect. The wavelength combining and decomposing device sends an optical signal to the electrical layer signal processing device. The optical signal is used to indicate the specified wavelength to be configured by the electrical layer signal processing device. The electrical layer signal processing device obtains the specified wavelength indicated by the optical signal. The electrical layer signal processing device configures the wavelength of the optical transceiver interface connected to the wavelength combining and decomposing device in the electrical layer signal processing device to the specified wavelength indicated by the optical signal.

[0023] In one possible design, the electrical layer signal processing device obtains wavelength information carried by the optical signal. The wavelength information includes a starting position and a specified wavelength, or the wavelength information includes an identifier of the starting position and the specified wavelength. The wavelength information may also include a check position. For the starting position, the specified wavelength, the identifier of the specified wavelength, and the check position, please refer to the corresponding description in the first aspect, which will not be repeated here.

[0024] In a possible design, the wavelength combining and demultiplexing device includes a wavelength tunable light source. The wavelength tunable light source in the wavelength combining and demultiplexing device generates an optical signal indicating a specified wavelength.

[0025] In a possible design, the wavelength combining and demultiplexing device includes a plurality of light sources. The plurality of light sources of the wavelength combining and demultiplexing device generate optical signals indicating designated wavelengths. The optical signals indicating designated wavelengths cover wavelength bands that do not completely overlap.

[0026] In a possible design, the wave combining and demultiplexing device further includes a wave combiner. The wave combiner in the wave combining and demultiplexing device combines multiple optical signals generated by multiple light sources.

[0027] In a fifth aspect, an embodiment of the present application provides another wavelength configuration method. The wavelength configuration method is applied to the electrical layer signal processing device as shown in the second aspect. The electrical layer signal processing device receives an optical signal from a wavelength combining and demultiplexing device. The optical signal is used to indicate a specified wavelength to be configured by the electrical layer signal processing device. The electrical layer signal processing device obtains the specified wavelength indicated by the optical signal. The electrical layer signal processing device configures the wavelength of the optical transceiver interface connected to the wavelength combining and demultiplexing device in the electrical layer signal processing device to the specified wavelength indicated by the optical signal.

[0028] In a sixth aspect, an embodiment of the present application provides another wavelength configuration method. The wavelength configuration method is applied to the wavelength combining and demultiplexing device as shown in the third aspect. The wavelength combining and demultiplexing device generates an optical signal, and the optical signal is used to indicate the specified wavelength to be configured by the electrical layer signal processing device. The wavelength combining and demultiplexing device sends the optical signal to the electrical layer signal processing device.

[0029] In a seventh aspect, an embodiment of the present application provides a wavelength configuration device. The wavelength configuration device may be a device or a chip or circuit disposed in a device. The wavelength configuration device includes a unit and / or module for executing the wavelength configuration method provided in any possible design of the fourth, fifth, sixth aspect or these three aspects, and thus can also achieve the beneficial effects of the wavelength configuration method provided in the fourth, fifth, sixth aspect or these three aspects.

[0030] In an eighth aspect, an embodiment of the present application provides a chip or a chip system. The chip or chip system includes at least one processor and an interface, and the interface and the at least one processor are interconnected by a line. At least one processor is used to run a computer program or instruction to perform the method described in any one of the fourth, fifth, sixth aspects or any possible implementation of the three aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of a wavelength configuration system provided in an embodiment of the present application;

[0032] Figure 2 A schematic diagram of wavelength information provided in an embodiment of the present application;

[0033] Figure 3 A schematic diagram of another wavelength configuration system provided in an embodiment of the present application;

[0034] Figure 4a A schematic diagram of another wavelength configuration system provided in an embodiment of the present application;

[0035] Figure 4b A schematic diagram of another wavelength configuration system provided in an embodiment of the present application;

[0036] Figure 5 A schematic diagram of a wavelength configuration method provided in an embodiment of the present application;

[0037] Figure 6 A schematic diagram of a DWDM wavelength automatic configuration system provided in an embodiment of the present application;

[0038] Figure 7 A schematic diagram of a wavelength configuration device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0039] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0040] In the present application, the term "plurality" means two or more than two. For example, a plurality of light sources means two or more than two light sources.

[0041] It should be understood that the terms used in the description of the various examples herein are only for describing specific examples and are not intended to be limiting. As used in the description of the various examples and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0042] It should be understood that in the various embodiments of the present application, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0043] It should be understood that determining B based on A does not mean determining B only based on A. B can also be determined based on A and / or other information.

[0044] It should be understood that the term “comprise” (also known as “includes”, “including”, “comprises” and / or “comprising”) when used in this specification specifies the presence of stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0045] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0046] Dense wavelength division multiplexing (DWDM) technology can transmit a group of different wavelengths of light through a single optical fiber. At present, the typical DWDM networking structure includes the electrical layer board of the wavelength division multiplexing system (such as the optical transport unit (OTU) board), the wavelength combiner and splitter board, the optical supervisory channel (OSC) board, etc. Among them, the line port wavelength of the electrical layer board of the wavelength division multiplexing system must be strictly consistent with the port wavelength of the wavelength combiner and splitter board, otherwise the services in the DWDM system cannot be connected. Therefore, when starting the network, it is necessary to manually configure the line port wavelength of the electrical layer board of the wavelength division multiplexing system, and manually configure the port wavelength of the wavelength combiner and splitter board connected to the electrical layer board of the wavelength division multiplexing system, so as to ensure the correct connection of the optical fiber. At present, the line port wavelength of the electrical layer board of the wavelength division multiplexing system relies on manual configuration, but the probability of manual planning and manual connection of optical fibers without error is low.

[0047] In order to solve the above problems, an embodiment of the present application provides a wavelength configuration method. The method is applied to a wavelength configuration system. The wavelength configuration method realizes the automatic configuration of the line port wavelength of the electrical layer single board of the wavelength division multiplexing system, which is conducive to completing the wavelength configuration faster and more accurately.

[0048] Figure 1 A schematic diagram of a wavelength configuration system provided in an embodiment of the present application. Figure 1 The wavelength configuration system shown includes an electrical layer signal processing device and a wavelength combining and demultiplexing device. It should be noted that the wavelength configuration method provided in the embodiment of the present application is mainly implemented by the electrical layer signal processing device and the wavelength combining and demultiplexing device. Figure 1 The wavelength configuration system shown does not include other modules. Figure 1 The wavelength configuration system described may be a DWDM system, that is, including other boards, such as an OSC board, etc., which is not limited in this embodiment.

[0049] The wavelength combining and demultiplexing device is used to send an optical signal to the electrical layer signal processing device, and the optical signal is used to indicate the designated wavelength to be configured by the electrical layer signal processing device. Since the wavelengths of the optical transceiver interface of the electrical layer signal processing device and the optical transceiver interface of the wavelength combining and demultiplexing device are consistent, the electrical layer signal processing device and the wavelength combining and demultiplexing device can normally establish an optical path to transmit services. The wavelength combining and demultiplexing device in this embodiment carries the designated wavelength through the optical signal to indicate the electrical layer signal processing device to configure the designated wavelength.

[0050] Correspondingly, the electrical layer signal processing device is used to receive the optical signal from the wavelength combining and demultiplexing device, and is used to obtain the specified wavelength indicated by the optical signal. For example, the electrical layer signal processing device is used to obtain the wavelength information carried by the optical signal. That is to say, the optical signal in this embodiment can be regarded as a modulated optical signal carrying wavelength information. The wavelength information is used to indicate the specified wavelength or the identifier of the specified wavelength. For example, the wavelength information in this embodiment includes the starting position and the specified wavelength, or the wavelength information includes the starting position and the identifier of the specified wavelength.

[0051] For example, Figure 2 A schematic diagram of wavelength information provided in an embodiment of the present application. The wavelength information may be a plurality of information bits, such as Figure 2 In order to enable the electrical layer signal processing device to identify the starting position in the wavelength information, the starting position is set to a special four-bit continuous information bit in this embodiment. For example, Figure 2 The starting position in is a special four-bit continuous information bit (also called the starting information bit) 0x55AA. That is, when the electrical layer signal processing device detects the starting information bit 0x55AA, the electrical layer signal processing device determines that the information bits after the starting information bit 0x55AA are the information bits corresponding to the specified wavelength or the identifier of the specified wavelength.

[0052] Among them, the electrical layer signal processing device is based on Figure 2 The multiple information bits after the start information bit 0x55AA in the decoded signal are used to obtain the specified wavelength or the identifier of the specified wavelength. For example, the electrical layer signal processing device decodes and obtains the following information: Figure 2 The designated wavelength indicated by the multiple information bits after the start information bit in is λ1. For another example, the electrical layer signal processing device decodes and obtains Figure 2 The designated wavelength indicated by the multiple information bits after the start information bit in is number 5. According to the preset correspondence between the designated wavelength identifier and the designated wavelength, the electrical layer signal processing device determines that the designated wavelength is the designated wavelength λ1 corresponding to number 5.

[0053] Optionally, the multiple information bits of the wavelength information also include special four-bit continuous information bits (also referred to as end information bits) indicating the end of the specified wavelength or the identifier of the specified wavelength. Figure 2 There are four consecutive information bits 0x0000 in the multiple information bits of the wavelength information, which are used to indicate the end of the specified wavelength or the identification of the specified wavelength. It should be understood that the "1" in the above information bit represents that the light source in the wavelength combining and demultiplexing device is turned on to emit light, and the "0" in the information bit represents that the light source in the wavelength combining and demultiplexing device is turned off and does not emit light. The wavelength information is generated by turning on (with light) or turning off (without light) the light source in the wavelength combining and demultiplexing device to generate an optical signal and send it out. Correspondingly, the electrical layer signal processing device decodes the optical signal to obtain the wavelength information.

[0054] In order to improve the reliability of transmission, the wavelength information can also include a check position. For example, Figure 2 The check position in is also a plurality of check information bits, and the check information bits are used to instruct the electrical layer signal processing device to use a specified check method to check the information obtained by decoding.

[0055] It should be noted that Figure 2 The wavelength information shown is only an example. The wavelength information in this embodiment can also be implemented in other ways. For example, the wavelength combining and decomposing device adjusts the optical power of the optical signal so that the optical signals with different optical powers carry the wavelength information. The electrical layer signal processing device receives the optical signals with different optical powers and can also obtain the specified wavelength indicated by the optical signal. For another example, the wavelength information can also be an indication frame, which is designed according to a certain frame format, and carries the wavelength information and the verification information in the indication frame.

[0056] The electrical layer signal processing device is also used to configure the wavelength of the optical transceiver interface connected to the wavelength combining and demultiplexing device in the electrical layer signal processing device to the designated wavelength indicated by the optical signal. For example, if the electrical layer signal processing device determines that the designated wavelength is λ1, the wavelength of the optical transceiver interface connected to the wavelength combining and demultiplexing device is configured to λ1.

[0057] It should be noted that the electrical layer signal processing device and the wave combining and demultiplexing device in the embodiment of the present application can be deployed at the same site. For example, the electrical layer signal processing device and the wave combining and demultiplexing device are deployed on the rack of the same machine room, or deployed on different racks of the same machine room, or deployed in different machine rooms. The electrical layer signal processing device and the wave combining and demultiplexing device can also be deployed at different sites, which is not limited in this embodiment. The electrical layer signal processing device and the wave combining and demultiplexing device are connected by optical fiber.

[0058] In one example, the electrical layer signal processing device is, for example, a DWDM electrical layer board in a DWDM system, or, for example, an OTU board. Specifically, the electrical layer signal processing device includes a processor and an optical transceiver interface, such as Figure 3 As shown. The processor can be implemented by a logic device (such as a field programmable gate array (FPGA)) or a central processing unit (CPU) system. If the electrical layer signal processing device is an OTU board, the optical transceiver interface can be a line port in the OTU board.

[0059] Among them, the optical transceiver interface is used to receive an optical signal from the wavelength combining and demultiplexing device, and the optical signal is used to indicate the specified wavelength to be configured by the electrical layer signal processing device. The processor is used to obtain the specified wavelength indicated by the optical signal. The processor is also used to configure the wavelength of the optical transceiver interface connected to the wavelength combining and demultiplexing device in the electrical layer signal processing device to the specified wavelength indicated by the optical signal. In a specific implementation method, the logic device in the processor obtains the wavelength information carried by the optical signal, and processes the wavelength information to obtain the specified wavelength. For a description of the wavelength information, please refer to Figure 2 The corresponding description in will not be repeated here.

[0060] Optionally, after the wavelength of the optical transceiver interface of the electrical layer signal processing device is successfully configured, the optical transceiver interface sends light of the specified wavelength to the optical transceiver interface of the corresponding wavelength combining and decomposing device. Figure 3 The wavelength of the optical transceiver interface in the electrical layer signal processing device is configured as λ1, and the optical transceiver interface sends light with a wavelength of λ1 to the optical transceiver interface 1 connected in the wavelength combining and demultiplexing device, indicating that the wavelength configuration of the optical transceiver interface of the electrical layer signal processing device is successful.

[0061] In one implementation, the electrical layer signal processing device is also used to connect and encapsulate various service signals (such as 10GE / 100GE Ethernet services, synchronous digital hierarchy (SDH) services, etc.) into optical signals (such as OTU signals) that meet the requirements of the DWDM system. Since the OTU signal is a color optical signal, it can be connected to the wavelength combination and demultiplexing device. When the electrical layer signal processing device is used to process various service signals, the electrical layer signal processing device also includes multiple ports and service processing modules, such as Figure 3 As shown by the dotted module in . For example, the electrical layer signal processing device also includes ports 1 to N, where N is a positive integer greater than 1. Port 1 is used to access Ethernet services, port 2 is used to access SDH services, and so on. Each port is used to access different services or no services. The service processing module is used to encapsulate the services accessed by each port into OTU signals. The service processing module transmits the OTU signal to the optical transceiver interface, and the optical transceiver interface sends the OTU signal to the wavelength combining and decomposition device. It should be noted that Figure 3 The functions performed by the business processing module in can also be implemented by the processor. In other words, Figure 3 The processor in the optical fiber is used to process the optical signals from the multiplexing and demultiplexing devices, and also to process the services from multiple ports.

[0062] In one example, the wavelength combining and demultiplexing device may be, for example, a wavelength combining and demultiplexing board in a DWDM system. The wavelength combining and demultiplexing board in a DWDM system is used to combine different wavelength color optical signals into the same optical fiber for transmission. Conversely, the wavelength combining and demultiplexing board may also decompose the combined light in the same optical fiber and send them to the corresponding OTU board from different optical ports.

[0063] The wave combiner and splitter device includes a light source, an optical transceiver interface, a wave combiner and a wave splitter, such as Figure 3 As shown. The light source is used to generate an optical signal, and the optical signal is used to indicate the specified wavelength to be configured by the electrical layer signal processing device. The optical transceiver interface is used to send the optical signal to the electrical layer signal processing device. Among them, the wavelength combining and decomposing device may include multiple optical transceiver interfaces, such as Figure 3 The wavelength combining and demultiplexing device in the optical transceiver interface includes optical transceiver interfaces 1 to N. The optical transceiver interfaces 1 to N can be connected to a maximum of N electrical layer signal processing devices, and the optical transceiver interfaces 1 to N are required to access optical signals of specified wavelengths respectively. The combiner and demultiplexer are used to combine multiple optical signals into one optical signal, or to distribute one optical signal to a specified optical transceiver interface. For example, Figure 3 The light source in generates an optical signal indicating a specified wavelength. The optical signal is distributed to the optical transceiver interface 1 through the combiner and the demultiplexer, and is sent to the electrical layer signal processing module connected to the optical transceiver interface 1 through the optical transceiver interface 1. It should be noted that for Figure 3For the optical signal sent by the light source in the optical fiber, the combiner and splitter realize the function of the splitter.

[0064] In one implementation, the light source is a wavelength-tunable light source. The wavelength-tunable light source is used to generate an optical signal indicating a specified wavelength. For example, Figure 4a The wavelength combining and splitting device shown includes a single wavelength tunable light source. The wavelength tunable light source can be a full-band tunable laser. The wavelength tunable light source can be used to send optical signals of different wavelengths to the optical transceiver interfaces 1 to N through the splitter. Optionally, Figure 4a The wavelength combining and demultiplexing device shown also includes a processor. The processor is used to generate different wavelength information for the optical transceiver interfaces 1 to N respectively, and the different wavelength information is used to indicate different designated wavelengths, thereby distinguishing the optical transceiver interfaces 1 to N. Similarly, the processor in the wavelength combining and demultiplexing device can also be implemented by a logic device (such as FPGA) or a CPU system.

[0065] In another implementation, the wavelength combining and demultiplexing device includes a plurality of light sources. The plurality of light sources are used to generate light signals indicating a specified wavelength. For example, Figure 4b The wavelength combining and demultiplexing device shown includes light sources 1 to 3, each of which can be a wavelength-tunable light source or a fixed-wavelength light source, which is not limited in this embodiment. Among them, light sources 1 to 3 respectively receive wavelength information 1 to 3 from the processor. For example, light source 1 receives wavelength information 1, and wavelength information 1 is used to indicate a specified wavelength λ1. Light source 1 generates an optical signal 1 for indicating the specified wavelength λ1 based on wavelength information 1. Similarly, light source 2 generates an optical signal 2 for indicating the specified wavelength λ2 based on wavelength information 2, and light source 3 generates an optical signal 3 for indicating the specified wavelength λ3 based on wavelength information 3. Optionally, the wavelength combining and demultiplexing device also includes a single combiner, which is used to combine multiple optical signals generated by multiple light sources. For example, Figure 4b The optical signals 1-3 generated by the light sources 1-3 shown can be combined by the combiner and then input into the optical fiber (called the main optical path) in the combiner / demultiplexer. The optical signals 1-3 enter the demultiplexer through the optical fiber and are distributed to the corresponding optical transceiver interface by the demultiplexer.

[0066] Optionally, the optical signals indicating the specified wavelengths generated by the multiple light sources cover wavelength bands that do not completely overlap. Figure 4b The optical signal indicating the specified wavelength generated by the light source 1 shown covers the C band, the optical signal indicating the specified wavelength generated by the light source 2 covers the L band, and the optical signal indicating the specified wavelength generated by the light source 3 covers the C band and the L band. Then the light sources 1 to 3 can cover the bands commonly used in the DWDM system. It should be noted that since the optical signal indicating the specified wavelength generated by the light source 3 covers the C band and the L band, when the light source 1 or the light source 2 fails, the light source 3 can also serve as a backup for the light source 1 or the light source 2.

[0067] The embodiment of the present application provides a wavelength configuration system, which includes an electrical layer signal processing device and a wavelength splitter / combiner device. The electrical layer signal processing device automatically configures the wavelength of the corresponding optical transceiver interface after receiving the optical signal sent by the wavelength splitter / combiner device. The wavelength configuration system does not require a complex and error-prone manual configuration process, and completes the wavelength configuration of the electrical layer signal processing device more accurately in a shorter time.

[0068] Figure 5 A wavelength configuration method is provided for an embodiment of the present application. The wavelength configuration method is applied to Figures 1 to 4b The wavelength configuration system shown is implemented by the interaction between the electrical layer signal processing device and the wavelength combining and decomposing device, and includes the following steps:

[0069] 101. A wavelength combining and decomposing device sends an optical signal to an electrical layer signal processing device, where the optical signal is used to indicate a designated wavelength to be configured by the electrical layer signal processing device.

[0070] 102. An electrical layer signal processing device obtains a designated wavelength indicated by an optical signal.

[0071] 103. The electrical layer signal processing device configures the wavelength of the optical transceiver interface connected to the wavelength combining / decombining device in the electrical layer signal processing device to be the designated wavelength indicated by the optical signal.

[0072] In one implementation, the electrical layer signal processing device obtains the specified wavelength indicated by the optical signal, and the specific execution steps are: the electrical layer signal processing device obtains the wavelength information carried by the optical signal. The wavelength information includes the starting position and the specified wavelength, or the wavelength information includes the starting position and the identifier of the specified wavelength. The wavelength information may also include a check position. Among them, the starting position, the specified wavelength, the identifier of the specified wavelength and the check position, please refer to Figures 1 to 4b The corresponding description in the embodiments will not be repeated here.

[0073] In one implementation, before the wavelength combining and demultiplexing device sends the optical signal to the electrical layer signal processing device, the wavelength tunable light source in the wavelength combining and demultiplexing device generates an optical signal indicating a specified wavelength.

[0074] In one implementation, before the wavelength combining and demultiplexing device sends the optical signal to the electrical layer signal processing device, multiple light sources in the wavelength combining and demultiplexing device generate optical signals indicating the specified wavelength. Optionally, the combiner in the wavelength combining and demultiplexing device combines multiple optical signals generated by multiple light sources.

[0075] In summary, Figure 5 The specific execution process and detailed description of steps 101 to 103 in the embodiment and various implementations can be referred to in detail. Figures 1 to 4b The corresponding description in will not be repeated here.

[0076] The embodiment of the present application provides a wavelength configuration method, which is implemented by the interaction between an electrical layer signal processing device and a wavelength combining and demultiplexing device. The wavelength combining and demultiplexing device sends an optical signal indicating a specified wavelength to the electrical layer signal processing device, and the electrical layer signal processing device automatically configures the wavelength after receiving the optical signal. It can be seen that the wavelength configuration method does not require manual configuration and automatically completes the wavelength configuration.

[0077] Based on the above Figures 1 to 5 The wavelength configuration system and the wavelength configuration method provided in the embodiments of the present application are described in the embodiments. The overall implementation process of the wavelength configuration method in the DWDM wavelength automatic configuration system is described in detail below. Figure 6 A schematic diagram of a DWDM wavelength automatic configuration system provided in an embodiment of the present application. Figure 6 The DWDM wavelength automatic configuration system shown includes M DWDM electrical layer boards and wavelength combining and demultiplexing boards. In this embodiment, it is assumed that the DWDM electrical layer boards 1 to M (M≤N) can be connected to any M optical transceiver interfaces of the optical transceiver interfaces 1 to N of the wavelength combining and demultiplexing boards. The specific connection method can be to connect through optical fibers or to connect using other optical waveguide materials. Among them, Figure 6 The DWDM electrical layer board shown has Figures 1 to 5 Functions of the electrical layer signal processing device shown in the embodiment. Figure 6 The combined wave splitter board shown has Figures 1 to 5 The functions of the wave combining and de-combining devices shown in the embodiments.

[0078] The wavelength configuration method provided in the embodiment of the present application is applied to: Figure 6 The specific steps in the DWDM wavelength automatic configuration system are described.

[0079] 201, the wavelength combining and decompression board receives an automatic configuration start instruction, and starts to send optical signals indicating designated wavelengths to the optical transceiver interfaces 1 to N in a polling manner.

[0080] 202 , the light source in the wavelength combiner / demultiplexer board generates an optical signal 1 indicating a specified wavelength λ1, and distributes the optical signal 1 to the optical transceiver interface 1 through the wavelength combiner and the wavelength demultiplexer.

[0081] 203, the optical transceiver interface 1 in the wavelength combination / demultiplexing board sends the optical signal 1.

[0082] 204, after the optical transceiver interface 1 in the wavelength multiplexing / demultiplexing board sends the optical signal 1, no optical signal is detected within the specified timing period. Then the wavelength multiplexing / demultiplexing board determines that the optical transceiver interface 1 is not connected to the DWDM electrical layer board, and continues to poll the next optical transceiver interface.

[0083] 205 , the light source in the wavelength combiner / demultiplexer board generates an optical signal 2 indicating a specified wavelength λ2, and distributes the optical signal 2 to the optical transceiver interface 2 through the wavelength combiner and the wavelength demultiplexer.

[0084] 206 , the optical transceiver interface 2 in the wavelength combination / demultiplexing board sends the optical signal 2 .

[0085] 207 , the DWDM electrical layer board 1 connected to the optical transceiver interface 2 receives the optical signal 2 and obtains the designated wavelength λ2 indicated by the optical signal 2 .

[0086] 208. The DWDM electrical layer board 1 configures the wavelength of its own optical transceiver interface to the designated wavelength λ2.

[0087] 209, after the optical transceiver interface 2 in the wavelength combiner / demultiplexer board sends the optical signal 2, the optical signal is detected within the specified timing period. The wavelength combiner / demultiplexer board determines that the wavelength configuration of the DWDM electrical layer board 1 connected to the optical transceiver interface 2 is successful. The wavelength combiner / demultiplexer board continues to poll the next optical transceiver interface.

[0088] 210. By analogy with steps 201 to 209, if the remaining optical transceiver interfaces in the wavelength combination / demultiplexing board are connected to the DWDM electrical layer board, an optical signal indicating the specified wavelength is sent to the DWDM electrical layer board connected thereto. This is until the wavelength configuration of all DWDM electrical layer boards connected to the optical transceiver interfaces on the wavelength combination / demultiplexing board is successful. It should be understood that step 210 does not refer to a single step, but to a series of steps similar to steps 201 to 209. The specific implementation of the above steps 201 to 210 can be referred to. Figures 1 to 5 The corresponding description in the embodiments is not described in detail here to avoid repetition.

[0089] In one implementation, the automatic configuration start instruction received by the wavelength combining and decomposing board in step 201 may be a start instruction sent by the management device, which is used to instruct the DWDM wavelength automatic configuration system to open the service and start wavelength automatic configuration. Optionally, after step 210 is executed, the wavelength combining and decomposing board sends an automatic configuration completion instruction to the management device to notify the management device that the DWDM wavelength automatic configuration system is successfully configured. After the configuration is completed, the DWDM wavelength automatic configuration system can implement related business functions.

[0090] In one implementation, a timer may be set in the wavelength combining and demultiplexing board in step 204. When the wavelength combining and demultiplexing board polls the optical transceiver interfaces 1 to N, the wavelength combining and demultiplexing board uses a timer to poll the optical transceiver interfaces 1 to N according to a specified timing period. For example, the period of the timer set in the wavelength combining and demultiplexing board is T. When the optical transceiver interface n (1≤n≤N) in the wavelength combining and demultiplexing board sends an optical signal n, the timer starts timing. If within the period T, the optical transceiver interface n detects an optical signal, or the optical power detection device in the wavelength combining and demultiplexing board detects the specified wavelength λ n If the optical power of the DWDM electrical layer board connected to the optical transceiver interface n is detected, it means that the wavelength of the DWDM electrical layer board connected to the optical transceiver interface n is successfully configured. The optical transceiver interface n can detect the optical signal through a photodiode (PD). If the optical transceiver interface n does not detect the optical signal within the period T, or the optical power detection device in the wavelength combination and demultiplexing board does not detect the specified wavelength λ n If the optical power is not displayed, it means that the optical transceiver interface n is not connected to the DWDM electrical layer board.

[0091] Figure 7 A schematic diagram of a wavelength configuration device provided in an embodiment of the present application. Figure 7 The wavelength configuration device shown can achieve the above Figure 5 One or more steps in the method flow of the embodiment. To avoid repetition, it will not be described in detail here. The wavelength configuration device includes an interface 701 and at least one processor 702. The interface 701 and the processor 702 can be connected to each other through one or more communication buses, or can be connected through other methods.

[0092] In one implementation, the interface 701 is used to receive an optical signal or send an optical signal. For example, the interface 701 is an optical transceiver interface.

[0093] In one implementation, the processor 702 is used to process the optical signal. For example, the processor is used to obtain a specified wavelength indicated by the optical signal. The processor 702 may include one or more processors, for example, the processor 702 may be one or more central processing units (CPUs), network processors (NPs), hardware chips, or any combination thereof. In the case where the processor 702 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0094] The embodiment of the present application provides a chip or a chip system, which includes at least one processor and an interface, the interface and the at least one processor are interconnected through a line, and the at least one processor is used to run a computer program or instruction to perform the wavelength configuration method in the embodiment of the present application. The interface can be an input / output interface, a pin or a circuit, etc.

[0095] The chip system in the above aspects may be a system on chip (SOC) or a baseband chip, etc., wherein the baseband chip may include a processor, a channel encoder, a digital signal processor, a modem and an interface module, etc.

[0096] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that contains one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0097] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

Claims

1. A wavelength configuration system, characterized in that: The wavelength configuration system includes an electrical layer signal processing device and a wavelength combining and demultiplexing device, wherein the wavelength combining and demultiplexing device includes a processor, one or more light sources, an optical fiber, a wavelength combiner / demultiplexer, and one or more optical transceiver interfaces, wherein the processor sends wavelength information to the one or more light sources, the one or more light sources are coupled to the optical fiber, the optical fiber is connected to the wavelength combiner / demultiplexer, and the wavelength combiner / demultiplexer is connected to the one or more optical transceiver interfaces; wherein: The wavelength combining and demultiplexing device is used to generate different wavelength information for one or more optical transceiver interfaces respectively through the processor, and the different wavelength information is used to indicate different specified wavelengths; generate optical signals of different specified wavelengths through the one or more light sources, and send the optical signals to the electrical layer signal processing device through the one or more optical transceiver interfaces, and the optical signals are used to indicate the specified wavelength to be configured by the electrical layer signal processing device; the wavelength information includes a starting position and the specified wavelength; or, the wavelength information includes a starting position and an identifier of the specified wavelength; The electrical layer signal processing device is used to obtain the specified wavelength indicated by the optical signal; The electrical layer signal processing device is also used to configure the wavelength of the optical transceiver interface in the electrical layer signal processing device connected to the wavelength combining and decomposing device to be the designated wavelength indicated by the optical signal.

2. The system according to claim 1, characterized in that The electrical layer signal processing device is used to obtain the specified wavelength indicated by the optical signal, including: The electrical layer signal processing device is used to obtain wavelength information carried by the optical signal, and the wavelength information is used to indicate the designated wavelength or an identifier of the designated wavelength.

3. The system according to claim 1 or 2, characterized in that: The wavelength information also includes a calibration position.

4. The system according to claim 1, characterized in that The wavelength combining and demultiplexing device comprises a single wavelength tunable light source; the wavelength tunable light source is used to generate an optical signal indicating a specified wavelength.

5. The system according to claim 1, characterized in that The wavelength combining and demultiplexing device comprises a plurality of light sources, wherein the plurality of light sources are used to generate light signals indicating designated wavelengths, and light signals generated by different light sources among the plurality of light sources cover wavelength bands that do not completely overlap.

6. The system according to claim 5, characterized in that: The wave combining and decomposing device further includes a wave combiner, and the wave combiner is used to combine a plurality of optical signals generated by the plurality of light sources.

7. An electrical layer signal processing device, characterized in that: It includes a processor and an optical transceiver interface; the processor and the optical transceiver interface are connected, wherein: The optical transceiver interface is used to receive an optical signal from a wavelength combining and decomposing device, wherein the optical signal is a modulated optical signal carrying wavelength information, wherein the wavelength information includes a starting position and a specified wavelength, or the wavelength information includes an identifier of the starting position and the specified wavelength; The processor is used to obtain the specified wavelength indicated by the optical signal; The processor is also used to configure the wavelength of the optical transceiver interface in the electrical layer signal processing device connected to the wavelength combining and decomposing device to be the designated wavelength indicated by the optical signal.

8. The device according to claim 7, characterized in that The processor is used to obtain the specified wavelength indicated by the optical signal, including: The processor is used to obtain wavelength information carried by the optical signal, where the wavelength information is used to indicate the designated wavelength or an identifier of the designated wavelength.

9. A wave combining and decomposing device, characterized in that: It includes a processor, one or more light sources, an optical fiber, a wave combiner / splitter, and one or more optical transceiver interfaces; the light source is coupled to the optical fiber, the optical fiber is connected to the wave combiner / splitter, and the wave combiner / splitter is connected to the one or more optical transceiver interfaces; The processor is used to generate different wavelength information for one or more optical transceiver interfaces respectively, and the different wavelength information is used to indicate different designated wavelengths; The processor is further configured to send wavelength information to the one or more light sources; the wavelength information includes a starting position and the specified wavelength; or the wavelength information includes an identifier of the starting position and the specified wavelength; The one or more light sources are used to generate optical signals of different specified wavelengths, and the optical signals are used to indicate the specified wavelength to be configured by the electrical layer signal processing device; The optical fiber and the wavelength combiner / demultiplexer are used to transmit the optical signal to the optical transceiver interface; The optical transceiver interface is used to send the optical signal to the electrical layer signal processing device.

10. The device according to claim 9, characterized in that The wavelength combining and demultiplexing device further includes a processor, and the processor is used to generate wavelength information; the optical signal carries the wavelength information, and the wavelength information is used to indicate the designated wavelength or an identifier of the designated wavelength.

11. The device according to claim 9, characterized in that The light source is a single wavelength tunable light source; the light source is used to generate an optical signal, including: The wavelength tunable light source is used to generate an optical signal indicating a specified wavelength.

12. The device according to claim 9, characterized in that The light source includes a plurality of light sources, and the light source is used to generate an optical signal, including: The multiple light sources are used to generate optical signals indicating designated wavelengths, and the optical signals generated by different light sources among the multiple light sources cover wavelength bands that do not completely overlap.

13. The device according to claim 12, characterized in that The wave combining and demultiplexing device further comprises a wave combiner, which is connected to the light source, connected to the optical fiber, and used for combining a plurality of optical signals generated by the plurality of light sources.

14. A wavelength configuration method, characterized in that: Applied to a wavelength configuration system, the wavelength configuration system includes an electrical layer signal processing device and a wavelength combining and decomposing device; the method includes: The wavelength combining and demultiplexing device generates different wavelength information for one or more optical transceiver interfaces through a processor, and the different wavelength information is used to indicate different designated wavelengths; generates optical signals of different designated wavelengths through one or more light sources, and sends optical signals to the electrical layer signal processing device through one or more optical transceiver interfaces, and the optical signals are used to indicate the designated wavelength to be configured by the electrical layer signal processing device; the wavelength information includes a starting position and the designated wavelength; or, the wavelength information includes an identifier of a starting position and the designated wavelength; The electrical layer signal processing device obtains the specified wavelength indicated by the optical signal; The electrical layer signal processing device configures the wavelength of the optical transceiver interface in the electrical layer signal processing device connected to the wavelength combining and decomposing device to be the designated wavelength indicated by the optical signal.

15. The method according to claim 14, characterized in that The electrical layer signal processing device obtains the specified wavelength indicated by the optical signal, including: The electrical layer signal processing device obtains wavelength information carried by the optical signal; the wavelength information is used to indicate the designated wavelength or an identifier of the designated wavelength.

16. The method according to claim 14, characterized in that The method further comprises: The wavelength-tunable light source in the wavelength combining and decomposing device generates an optical signal indicating a specified wavelength.

17. The method according to claim 14, characterized in that The method further comprises: The plurality of light sources of the wavelength combining and decomposing device generate optical signals indicating designated wavelengths, and the optical signals indicating designated wavelengths cover wavelength bands that do not completely overlap.

18. The method according to claim 17, characterized in that The method further comprises: The combiner in the wave combining and decomposing device combines the multiple optical signals generated by the multiple light sources.

19. A wavelength configuration method, characterized in that: Applied to an electrical layer signal processing device, the method comprises: The electrical layer signal processing device receives an optical signal from a wavelength combining and decomposing device, wherein the optical signal is a modulated optical signal carrying wavelength information, wherein the wavelength information includes a starting position and a specified wavelength, or the wavelength information includes an identifier of the starting position and the specified wavelength; The electrical layer signal processing device obtains the specified wavelength indicated by the optical signal; The electrical layer signal processing device configures the wavelength of the optical transceiver interface in the electrical layer signal processing device connected to the wavelength combining and decomposing device to be the designated wavelength indicated by the optical signal.

20. The method according to claim 19, characterized in that The electrical layer signal processing device obtains the specified wavelength indicated by the optical signal, including: The electrical layer signal processing device obtains wavelength information carried by the optical signal, where the wavelength information is used to indicate the designated wavelength or an identifier of the designated wavelength.

21. A wavelength configuration system, characterized in that: include: A wave combining and demultiplexing device, wherein the wave combining and demultiplexing device is the wave combining and demultiplexing device according to any one of claims 9 to 13; A plurality of electrical layer signal processing devices, any one of the plurality of electrical layer signal processing devices is the electrical layer signal processing device as described in any one of claims 7 or 8.

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