CN110365441B - Optical signal transmitting and receiving method, device, equipment and wavelength division multiplexing system based on O wave band - Google Patents
Optical signal transmitting and receiving method, device, equipment and wavelength division multiplexing system based on O wave band Download PDFInfo
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- CN110365441B CN110365441B CN201910699571.1A CN201910699571A CN110365441B CN 110365441 B CN110365441 B CN 110365441B CN 201910699571 A CN201910699571 A CN 201910699571A CN 110365441 B CN110365441 B CN 110365441B
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Abstract
The invention relates to an optical signal transmitting and receiving method, a device, equipment and a wavelength division multiplexing system based on O wave band, which comprises the steps of receiving an optical signal to be processed; determining an O waveband optical signal in an optical signal to be processed; obtaining target O wave band optical signals at preset intervals in the O wave band optical signals; and synthesizing the target O-waveband optical signal into a target optical signal, and transmitting the target optical signal to O-waveband-based optical signal receiving equipment, so that the O-waveband-based optical signal receiving equipment decomposes the target optical signal into a target O-waveband optical signal, and then outputting the target O-waveband optical signal as a 5G fronthaul optical network. By adopting the technical scheme of the invention, through the wavelength division multiplexing WDM technology, the single communication optical cable transmission is realized during the short-distance transmission of high-speed 25G and 100G signals based on O-waveband optical signals, the equipment cost is low, dispersion compensation is not needed, the time delay is low, and OLP protection can be realized.
Description
Technical Field
The invention relates to the technical field of optical signals, in particular to an optical signal transmitting and receiving method, device, equipment and a wavelength division multiplexing system based on O wave band.
Background
With the rapid development of 5G technology, global data is growing explosively. Compared with 4G and 5G, the method has higher requirements on the aspects of bandwidth, time delay, synchronization, reliability, flexibility and the like of the bearer network. Therefore, the requirement for the 5G fronthaul optical network is also increasing, and the 5G fronthaul optical network becomes one of the important means essential for improving the 5G comprehensive capability.
In the prior art, within 20KM, when signals of 25G or 100G are transmitted, optical signals of different wave bands need to be transmitted by using different communication optical cables, so that the equipment cost is increased, and the optical signals need dispersion compensation and have higher delay in the transmission process.
Disclosure of Invention
In view of this, an object of the present invention is to provide an optical signal transmitting and receiving method, apparatus, device, and wavelength division multiplexing system based on O-band, so as to overcome the problems that optical signals in different bands need to be transmitted by using different communication optical cables when transmitting signals within 20KM, 25G or 100G, which increases the cost of the apparatus, and the optical signals need dispersion compensation and have higher delay in the transmission process.
In order to achieve the purpose, the invention adopts the following technical scheme:
an optical signal transmitting method based on O wave band is applied to an optical signal transmitting device based on O wave band, and the method comprises the following steps:
receiving an optical signal to be processed;
determining an O waveband optical signal in the optical signal to be processed;
obtaining target O wave band optical signals at preset intervals in the O wave band optical signals;
and synthesizing the target O-waveband optical signal into a target optical signal, and transmitting the target optical signal to O-waveband-based optical signal receiving equipment, so that the O-waveband-based optical signal receiving equipment decomposes the target optical signal into the target O-waveband optical signal, and then outputting the target O-waveband optical signal as a 5G fronthaul optical network.
Further, the above method for transmitting an optical signal based on O-band, wherein the determining an optical signal based on O-band in the optical signal to be processed includes:
and determining the optical signal with the wavelength of 1260nm-1370nm in the optical signal to be processed as the O waveband optical signal.
Further, in the above method for transmitting an optical signal based on an O-band, the preset interval includes a preset wavelength interval and a preset frequency interval;
the obtaining of the target O-band optical signals at preset intervals in the O-band optical signals includes:
decomposing the O waveband optical signal according to the preset wavelength interval or the preset frequency interval to obtain a decomposed O waveband optical signal;
and determining a target decomposition O-waveband optical signal meeting a preset standard from the decomposition O-waveband optical signals as the target O-waveband optical signal.
The invention also provides an O-waveband-based optical signal receiving method, which is applied to O-waveband-based optical signal receiving equipment and comprises the following steps:
receiving a bundle of target optical signals synthesized by target O-band optical signals transmitted by an O-band optical signal transmitting device;
decomposing the target optical signal into the target O-band optical signal;
and outputting the target O-waveband optical signal to enable the target O-waveband optical signal to serve as a 5G fronthaul optical network.
The invention also provides an optical signal transmitting device based on the O wave band, which comprises a first receiving module, a determining module, an obtaining module and a wave combining module:
the first receiving module is used for receiving optical signals to be processed;
the determining module is used for determining an O waveband optical signal in the optical signal to be processed;
the acquisition module is used for acquiring target O waveband optical signals at preset intervals in the O waveband optical signals;
the wave combination module is configured to synthesize the target O-band optical signal into a target optical signal and transmit the target optical signal to an O-band-based optical signal receiving device, so that the O-band-based optical signal receiving device decomposes the target optical signal into the target O-band optical signal and outputs the target O-band optical signal as a 5G fronthaul optical network.
Further, in the above O-band-based optical signal transmitting apparatus, the preset interval includes a preset wavelength interval and a preset frequency interval;
the acquisition module is specifically configured to decompose the O-band optical signal according to the preset wavelength interval or the preset frequency interval to obtain a decomposed O-band optical signal; and determining a target decomposition O-waveband optical signal meeting a preset standard from the decomposition O-waveband optical signals as the target O-waveband optical signal.
The invention also provides an optical signal receiving device based on the O wave band, which comprises a second receiving module, a wave division module and an output module;
the second receiving module is used for receiving a beam of target optical signal which is sent by the O-waveband optical signal transmitting equipment and synthesized by the target O-waveband optical signal;
the wavelength division module is used for decomposing the target optical signal into the target O-waveband optical signal;
the output module is configured to output the target O-band optical signal, so that the target O-band optical signal serves as a 5G fronthaul optical network.
The invention also provides optical signal transmitting equipment based on the O wave band, which comprises an optical receiver, a wave processor and a wave combiner;
the optical receiver and the wave combiner are respectively connected with the wave processor;
the optical receiver is used for receiving an optical signal to be processed;
the wave processor is used for extracting an O wave band optical signal in the optical signal to be processed; determining target O-waveband optical signals at preset intervals in the O-waveband optical signals;
the combiner is configured to combine the target O-band optical signal into a target optical signal and output the target optical signal, so that the O-band-based optical signal receiving device receives the target optical signal, decomposes the target optical signal into the target O-band optical signal, and outputs the target O-band optical signal as a 5G fronthaul optical network.
The invention also provides an optical signal receiving device based on the O wave band, which comprises a wave separator and an optical output device;
the wave separator is connected with the optical output device;
the optical branching filter is used for receiving a beam of target optical signals which are sent by the O-waveband optical signal sending equipment and synthesized by the target O-waveband optical signals; decomposing the target optical signal into the target O-band optical signal;
the optical output device is configured to output the target O-band optical signal, so that the target O-band optical signal serves as a 5G fronthaul optical network.
The invention also provides a wavelength division multiplexing system based on O wave bands, which comprises an optical signal receiving device based on O wave bands and an optical signal transmitting device based on O wave bands;
the optical signal transmitting device based on the O wave band comprises an optical receiver, a wave processor and a wave combiner;
the optical signal receiving apparatus based on the O-band includes a demultiplexer and an optical outputter;
the wave combiner and the wave separator are connected through a communication optical cable.
The invention relates to an O-waveband-based optical signal transmitting and receiving method, a device, equipment and a wavelength division multiplexing system, which adopt the technical scheme to receive optical signals to be processed; determining an O waveband optical signal in an optical signal to be processed; obtaining target O wave band optical signals at preset intervals in the O wave band optical signals; the target O-waveband optical signal is synthesized into a target optical signal and then transmitted to the O-waveband-based optical signal receiving equipment, so that the O-waveband-based optical signal receiving equipment decomposes the target optical signal into the target O-waveband optical signal and then outputs the target O-waveband optical signal as a 5G fronthaul optical network, single communication optical cable transmission during short-distance transmission of high-speed 25G and 100G signals based on the O-waveband optical signal is realized, the equipment cost is low, dispersion compensation is not needed, and the time delay is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a first embodiment of an optical signal transmitting method based on O-band according to the present invention;
FIG. 2 is a flowchart of a second embodiment of the optical signal transmitting method based on O-band according to the present invention;
FIG. 3 is a flow chart of an embodiment of a method for receiving an optical signal based on O-band according to the present invention;
FIG. 4 is a schematic structural diagram of an embodiment of an optical signal transmitting device based on O-band according to the present invention;
FIG. 5 is a schematic structural diagram of an embodiment of an optical signal receiving apparatus according to the invention based on O-band;
FIG. 6 is a schematic structural diagram of an embodiment of an optical signal transmitting device based on O-band according to the present invention;
FIG. 7 is a schematic structural diagram of an embodiment of an optical signal receiving apparatus according to the invention based on O-band;
fig. 8 is a schematic structural diagram of an embodiment of the wavelength division multiplexing system based on O-band according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Fig. 1 is a flowchart of a first embodiment of an optical signal transmitting method based on O-band according to the present invention. As shown in fig. 1, the method for transmitting an optical signal based on an O-band according to this embodiment is applied to an optical signal transmitting device based on an O-band, and may specifically include the following steps:
s101, receiving an optical signal to be processed;
and receiving an optical signal to be processed, wherein in the embodiment, the optical signal to be processed is preferably ordinary white light.
S102, determining an O waveband optical signal in an optical signal to be processed;
from the optical signal to be processed, an O-band optical signal is determined. In this embodiment, the optical signal with a wavelength of about 1260nm to 1370nm is an O-band optical signal. That is, an O-band optical signal having a wavelength of about 1260nm to 1370nm can be determined from ordinary white light.
S103, obtaining target O-wave band optical signals at preset intervals in the O-wave band optical signals;
and after the O-waveband optical signals are determined, obtaining target O-waveband optical signals at preset intervals from the O-waveband optical signals. The preset interval may include a preset frequency interval and a preset wavelength interval.
And S104, synthesizing the target O-waveband optical signal into a target optical signal and transmitting the target optical signal to the O-waveband-based optical signal receiving equipment.
And synthesizing the target O-waveband optical signals into a target optical signal, and transmitting the target optical signal to O-waveband-based optical signal receiving equipment, so that the O-waveband-based optical signal receiving equipment decomposes the target optical signal into the target O-waveband optical signal and then outputs the target O-waveband optical signal as a 5G fronthaul optical network.
In the optical signal transmitting method based on the O-band according to the embodiment, an optical signal to be processed is received; determining an O waveband optical signal in an optical signal to be processed; obtaining target O wave band optical signals at preset intervals in the O wave band optical signals; the target O-waveband optical signal is synthesized into a target optical signal and then transmitted to the O-waveband-based optical signal receiving equipment, so that the O-waveband-based optical signal receiving equipment decomposes the target optical signal into the target O-waveband optical signal and then outputs the target O-waveband optical signal as a 5G fronthaul optical network, single communication optical cable transmission during short-distance transmission of high-speed 25G and 100G signals based on the O-waveband optical signal is realized, the equipment cost is low, dispersion compensation is not needed, and the time delay is low.
Fig. 2 is a flowchart of a second embodiment of the optical signal transmitting method based on O-band according to the present invention. As shown in fig. 2, the method for transmitting an optical signal based on an O-band according to this embodiment is applied to an optical signal transmitting device based on an O-band, and may specifically include the following steps:
s201, receiving an optical signal to be processed;
the execution process of this step is the same as the execution process of S101 in fig. 1, and is not described herein again.
S202, determining an O waveband optical signal in an optical signal to be processed;
the execution process of this step is the same as the execution process of S102 in fig. 1, and is not described here again.
S203, decomposing the O-waveband optical signal according to a preset wavelength interval or a preset frequency interval to obtain a decomposed O-waveband optical signal;
specifically, the O-band optical signals may be separated by a preset wavelength interval or a preset frequency interval. In this embodiment, the O-band optical signal is preferably decomposed at preset wavelength intervals, and for example, the O-band may be divided in a 4.8-5nm fine wave division manner: 1260nm, 1265nm, 1270nm, 1275nm, 1270nm, 1280nm, 1285nm, 1290nm, 1295nm, 1300nm, 1305nm, 1310nm, 1315nm, 1320nm, 1325nm, 1330nm, 1335nm, 1340nm, 1345nm, 1350nm, 1355nm, 1360nm, 1365nm and 1370nm, and the total wavelength is 23 wave bands. Besides the division according to the 4.8-5nm fine wave, the division may also be according to the 20nm coarse wave or other preset wavelength interval, and this embodiment is not limited.
S204, determining a target decomposition O-waveband optical signal which meets a preset standard from the decomposition O-waveband optical signals as a target O-waveband optical signal;
specifically, after the O-band optical signals are decomposed at preset intervals to obtain decomposed O-band optical signals, a target decomposed O-band optical signal meeting a preset standard may be determined from the decomposed O-band optical signals as a target O-band optical signal. For example, if all wavelength bands obtained by dividing the optical signal into 4.8 to 5nm wavelength bands can be selected as the target decomposed O-band optical signal, it is confirmed that 1260nm, 1265nm, 1270nm, 1275nm, 1280nm, 1285nm, 1290nm, 1295nm, 1300nm, 1305nm, 1310nm, 1315nm, 1320nm, 1325nm, 1330nm, 1335nm, 1340nm, 1345nm, 1350nm, 1355nm, 1360nm, 1365nm, 1370nm, and all wavelength bands of 23 wavelengths are used as the target decomposed O-band optical signal.
S205, synthesizing the target O-waveband optical signals into a target optical signal and transmitting the target optical signal to the O-waveband-based optical signal receiving equipment.
The target O-band optical signals may be arranged in a short-to-long wavelength manner, combined into one target optical signal, and transmitted to the O-band-based optical signal receiving device, so that the O-band-based optical signal receiving device decomposes the target optical signal into the target O-band optical signals, and then outputs the target O-band optical signals as a 5G fronthaul optical network.
Further, during the optical signal transmission, the transmission effect may be affected due to external environmental factors or internal failures. Therefore, the operating state of the optical signal transmitting equipment based on the O wave band can be obtained according to the preset period, and if the operating state of the optical signal transmitting equipment based on the O wave band is abnormal, abnormal early warning needs to be sent to workers, so that the workers can timely handle the abnormal early warning.
The method for transmitting an optical signal based on O-band according to this embodiment receives an optical signal to be processed, determines an O-band optical signal in the optical signal to be processed, decomposes the O-band optical signal according to a preset wavelength interval or a preset frequency interval to obtain a decomposed O-band optical signal, determines a target decomposed O-band optical signal that meets a preset standard from the decomposed O-band optical signal as a target O-band optical signal, synthesizes the target O-band optical signal into a target optical signal, and transmits the target optical signal to an O-band-based optical signal receiving device, so that the O-band-based optical signal receiving device decomposes the target optical signal into the target O-band optical signal and outputs the target O-band optical signal as a 5G fronthaul optical network, thereby achieving single communication optical cable transmission during short haul transmission of high-speed 25G and 100G signals based on the O-band optical signal, having low device cost and no need for dispersion compensation, the delay is low.
Fig. 3 is a flowchart of an embodiment of an O-band-based optical signal receiving method according to the present invention. As shown in fig. 3, the method for receiving an optical signal based on an O-band according to this embodiment is applied to an optical signal receiving device based on an O-band, and may specifically include the following steps:
s301, receiving a beam of target optical signals synthesized by target O-waveband optical signals transmitted by O-waveband optical signal transmitting equipment;
receiving a target optical signal transmitted based on the O-band optical signal transmitting apparatus, wherein the target optical signal is a beam of light synthesized from the target O-band optical signal.
S302, decomposing the target optical signal into a target O-waveband optical signal;
and decomposing the target optical signal to obtain a target O-waveband optical signal. Specifically, if the target optical signal is synthesized by dividing the O-band optical signal around 1260nm to 1370nm in the 4.8 to 5nm wavelet division manner, the step may reversely decompose the target optical signal into: 1260nm, 1265nm, 1270nm, 1275nm, 1270nm, 1280nm, 1285nm, 1290nm, 1295nm, 1300nm, 1305nm, 1310nm, 1315nm, 1320nm, 1325nm, 1330nm, 1335nm, 1340nm, 1345nm, 1350nm, 1355nm, 1360nm, 1365nm and 1370nm, and the total wavelength is 23 wave bands.
And S303, outputting the target O-waveband optical signal.
And after the target O-waveband optical signal is obtained, outputting the target O-waveband optical signal so that the target O-waveband optical signal is used as a 5G fronthaul optical network.
Further, during the optical signal transmission, the transmission effect may be affected due to external environmental factors or internal failures. Therefore, the operating state of the optical signal receiving equipment based on the O wave band can be obtained according to the preset period, and if the operating state of the optical signal receiving equipment based on the O wave band is abnormal, an abnormal early warning needs to be sent to a worker, so that the worker can timely process the abnormal early warning.
In the method for receiving an optical signal based on O-band according to this embodiment, a target optical signal synthesized from target optical signals in O-band transmitted by an optical signal transmitting apparatus in O-band is received; decomposing the target optical signal into a target O-waveband optical signal; the target O waveband optical signal is output to be used as a 5G fronthaul optical network, single communication optical cable transmission during short-distance transmission of high-speed 25G and 100G signals based on the O waveband optical signal is achieved, equipment cost is low, dispersion compensation is not needed, and delay is low.
Fig. 4 is a schematic structural diagram of an embodiment of an optical signal transmitting device based on O-band according to the present invention. In order to be more comprehensive, the application also provides an optical signal transmitting device based on the O waveband, corresponding to the optical signal transmitting method based on the O waveband provided by the embodiment of the invention. As shown in fig. 4, the O-band-based optical signal transmitting apparatus of this embodiment may include a first receiving module 11, a determining module 12, an obtaining module 13, and a combining module 14:
a first receiving module 11, configured to receive an optical signal to be processed;
a determining module 12, configured to determine an O-band optical signal in an optical signal to be processed;
an obtaining module 13, configured to obtain target O-band optical signals at preset intervals from the O-band optical signals;
and the wave combining module 14 is configured to combine the target O-band optical signal into a target optical signal and transmit the target optical signal to the O-band-based optical signal receiving device, so that the O-band-based optical signal receiving device decomposes the target optical signal into a target O-band optical signal and outputs the target O-band optical signal as a 5G fronthaul optical network.
The optical signal transmitting device based on O-band of this embodiment receives an optical signal to be processed through the first receiving module 11; determining an O waveband optical signal in the optical signal to be processed through the determining module 12; the obtaining module 13 obtains target O-band optical signals at preset intervals from the O-band optical signals; the wave combination module 14 combines the target O-band optical signal into a target optical signal and transmits the target optical signal to the O-band-based optical signal receiving device, so that the O-band-based optical signal receiving device decomposes the target optical signal into the target O-band optical signal and outputs the target O-band optical signal as a 5G fronthaul optical network, thereby realizing single communication optical cable transmission during short distance transmission of high-speed 25G and 100G signals based on the O-band optical signal, and having low device cost, no need of dispersion compensation, and low delay.
Further, the preset interval comprises a preset wavelength interval and a preset frequency interval;
the obtaining module 13 of this embodiment is specifically configured to decompose the O-band optical signal according to a preset wavelength interval or a preset frequency interval, so as to obtain a decomposed O-band optical signal; and determining a target decomposed O-waveband optical signal meeting a preset standard from the decomposed O-waveband optical signals as a target O-waveband optical signal. The single communication optical cable transmission is realized during short-distance transmission of high-speed 25G and 100G signals based on O-waveband optical signals, the equipment cost is low, dispersion compensation is not needed, and the time delay is low.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
In order to be more comprehensive, the application also provides an optical signal receiving device based on the O waveband, corresponding to the optical signal receiving method based on the O waveband provided by the embodiment of the invention. FIG. 5 is a schematic structural diagram of an embodiment of an optical signal receiving apparatus according to the invention based on O-band; as shown in fig. 5, the O-band-based optical signal transmitting apparatus of the present embodiment may include a second receiving module 15, a wavelength division module 16, and an output module 17;
a second receiving module 15, configured to receive a bundle of target optical signals synthesized by target O-band optical signals at preset intervals, which are sent by the O-band optical signal transmitting device;
a wavelength division module 16, configured to decompose the target optical signal into a target O-band optical signal;
and the output module 17 is configured to output the target O-band optical signal, so that the target O-band optical signal serves as a 5G fronthaul optical network.
In the O-band-based optical signal receiving apparatus of the present embodiment, the second receiving module 15 receives one bundle of target optical signals synthesized from target O-band optical signals transmitted by the O-band-based optical signal transmitting device; the wavelength division module 16 decomposes the target optical signal into a target O-band optical signal; the output module 17 outputs the target O-band optical signal so that the target O-band optical signal serves as a 5G fronthaul optical network. The single communication optical cable transmission is realized during short-distance transmission of high-speed 25G and 100G signals based on O-waveband optical signals, the equipment cost is low, dispersion compensation is not needed, and the time delay is low.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 6 is a schematic structural diagram of an embodiment of the optical signal transmitting device based on O-band according to the present invention. In order to be more comprehensive, the present application also provides an optical signal transmitting apparatus based on O-band, corresponding to the optical signal transmitting method based on O-band provided by the embodiment of the present invention. As shown in fig. 6, the O-band-based optical signal transmitting apparatus of the present embodiment includes an optical receiver 21, a wave processor 22, and a combiner 23;
the optical receiver 21 and the wave combiner 23 are respectively connected with the wave processor 22;
an optical receiver 21 for receiving an optical signal to be processed;
a wave processor 22 for extracting an O-band optical signal from the optical signal to be processed; determining target O wave band optical signals at preset intervals in the O wave band optical signals;
the combiner 23 is configured to combine the target O-band optical signals into one target optical signal and output the target optical signal, so that the O-band-based optical signal receiving device receives the target optical signal, decomposes the target optical signal into the target O-band optical signal, and outputs the target O-band optical signal as a 5G fronthaul optical network.
Specifically, the combiner 23 of this embodiment is preferably a passive combiner, so as to save the fiber bandwidth resource.
The optical signal is converted into an electrical signal by the wave processor 22 and the multiplexer 23, and after the processing is completed, the wave processor 22 and the multiplexer 23 convert the electrical signal into an optical signal and output the optical signal.
The optical receiver 21 of the optical signal transmitting device based on O-band of the present embodiment receives an optical signal to be processed, and the wave processor 22 extracts an optical signal of O-band from the optical signal to be processed; determining target O wave band optical signals at preset intervals in the O wave band optical signals; the combiner 23 combines the target O-band optical signals into one target optical signal and outputs the target optical signal, so that the O-band-based optical signal receiving device receives the target optical signal, decomposes the target optical signal into the target O-band optical signal, and outputs the target O-band optical signal as a 5G fronthaul optical network. The single communication optical cable transmission is realized during short-distance transmission of high-speed 25G and 100G signals based on O-waveband optical signals, the equipment cost is low, dispersion compensation is not needed, and the time delay is low.
Fig. 7 is a schematic structural diagram of an embodiment of an optical signal receiving device based on O-band according to the present invention. In order to be more comprehensive, the application also provides an optical signal receiving device based on the O waveband, corresponding to the optical signal receiving method based on the O waveband provided by the embodiment of the invention. As shown in fig. 6, the O-band-based optical signal receiving apparatus of the present embodiment includes a demultiplexer 24 and an optical outputter 25;
the wave separator 24 is connected with the optical output device 25;
the optical signal splitter 24 is configured to receive a bundle of target optical signals synthesized by target O-band optical signals at preset intervals and sent by an O-band optical signal transmitting device, and split the target optical signals into target O-band optical signals, where the optical signals are converted into electrical signals in the optical signal splitter 24, and after the processing is completed, the optical signal splitter 24 converts the electrical signals into optical signals and outputs the optical signals;
and an optical output device 25, configured to output the target O-band optical signal, so that the target O-band optical signal serves as a 5G fronthaul optical network.
Specifically, the splitter 24 of the present embodiment is preferably a passive splitter, so as to save fiber bandwidth resources.
In the O-band-based optical signal receiving apparatus of this embodiment, the demultiplexer 24 receives a bundle of target optical signals synthesized by target O-band optical signals at preset intervals, which are sent by an O-band-based optical signal transmitting apparatus; decomposing the target optical signal into a target O-waveband optical signal; the optical output device 25 outputs the target O-band optical signal so that the target O-band optical signal serves as a 5G fronthaul optical network. The single communication optical cable transmission is realized during short-distance transmission of high-speed 25G and 100G signals based on O-waveband optical signals, the equipment cost is low, dispersion compensation is not needed, and the time delay is low.
Fig. 8 is a schematic structural diagram of an embodiment of the wavelength division multiplexing system based on O-band according to the present invention. In order to be more comprehensive, the application also provides an O-band based wavelength division multiplexing system corresponding to the O-band based optical signal transmitting method and the O-band based optical signal receiving method provided by the embodiments of the present invention. The O-band based wavelength division multiplexing system of the present embodiment includes: an O-band-based optical signal receiving device 32 and an O-band-based optical signal transmitting device 31;
the O-band-based optical signal transmitting apparatus 31 includes an optical receiver 21, a wave processor 22, and a combiner 23;
the O-band-based optical signal receiving apparatus 32 includes a demultiplexer 24 and an optical outputter 25;
the combiner 23 and the splitter 24 are connected by a communication cable 33.
In order to ensure the communication safety, an Optical Fiber Line automatic switching Protection device 34 (OLP) may be disposed on the communication Optical cable 33, so as to implement OLP Protection, and improve the reliability, flexibility and disaster resistance of the O-band based wavelength division multiplexing system.
The O-band-based wavelength division multiplexing system of the present embodiment includes an O-band-based optical signal receiving device 32 and an O-band-based optical signal transmitting device 31, and the multiplexer 23 of the O-band-based optical signal receiving device 32 is connected to the demultiplexer 24 of the O-band-based optical signal receiving device 32. The single communication optical cable transmission is realized during short-distance transmission of high-speed 25G and 100G signals based on O-waveband optical signals, the equipment cost is low, dispersion compensation is not needed, the time delay is low, and OLP protection is also realized.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (8)
1. An optical signal transmitting method based on O wave band is applied to optical signal transmitting equipment based on O wave band, the optical signal transmitting equipment based on O wave band comprises a passive wave combiner, and the method comprises the following steps:
receiving an optical signal to be processed;
determining an O waveband optical signal in the optical signal to be processed;
obtaining target O waveband optical signals at preset intervals in the O waveband optical signals, and decomposing the O waveband optical signals according to preset wavelength intervals or preset frequency intervals to obtain decomposed O waveband optical signals;
determining a target decomposed O-band optical signal meeting a preset criterion as the target O-band optical signal from the decomposed O-band optical signals, wherein the target decomposed O-band optical signal includes a band of wavelengths of 1260nm, 1265nm, 1270nm, 1275nm, 1280nm, 1285nm, 1290nm, 1295nm, 1300nm, 1305nm, 1310nm, 1315nm, 1320nm, 1325nm, 1330nm, 1335nm, 1340nm, 1345nm, 1350nm, 1355nm, 1360nm, 1365nm, 1370 nm;
synthesizing the target O-waveband optical signal into a target optical signal and transmitting the target optical signal to O-waveband-based optical signal receiving equipment, so that the O-waveband-based optical signal receiving equipment decomposes the target optical signal into the target O-waveband optical signal and outputs the target O-waveband optical signal as a 5G fronthaul optical network; wherein the O-band based optical signal receiving apparatus includes a passive demultiplexer;
and the optical fiber circuit automatic switching protection device is arranged on the communication optical cable connecting the O waveband-based optical signal transmitting equipment and the O waveband-based optical signal receiving equipment, so that the signal transmission safety is protected.
2. The O-band based optical signal transmission method of claim 1, wherein the determining the O-band optical signal in the optical signal to be processed comprises:
and determining the optical signal with the wavelength of 1260nm-1370nm in the optical signal to be processed as the O waveband optical signal.
3. An optical signal receiving method based on an O waveband is applied to an optical signal receiving device based on the O waveband, wherein the optical signal receiving device based on the O waveband comprises a passive wave splitter, and the method comprises the following steps:
receiving a bundle of target optical signals synthesized by target O-band optical signals transmitted by an O-band optical signal transmitting device; wherein the O-band based optical signal transmitting device comprises a passive combiner;
decomposing the target optical signal into the target O-band optical signal, wherein the target O-band optical signal is decomposed into bands of wavelengths of 1260nm, 1265nm, 1270nm, 1275nm, 1280nm, 1285nm, 1290nm, 1295nm, 1300nm, 1305nm, 1310nm, 1315nm, 1320nm, 1325nm, 1330nm, 1335nm, 1340nm, 1345nm, 1350nm, 1355nm, 1360nm, 1365nm, 1370 nm;
outputting the target O-waveband optical signal to enable the target O-waveband optical signal to serve as a 5G fronthaul optical network;
and the optical fiber circuit automatic switching protection device is arranged on the communication optical cable connecting the O waveband-based optical signal transmitting equipment and the O waveband-based optical signal receiving equipment, so that the signal transmission safety is protected.
4. An optical signal transmitting device based on O waveband is applied to optical signal transmitting equipment based on O waveband, the optical signal transmitting equipment based on O waveband comprises a passive wave combiner, and the device comprises a first receiving module, a determining module, an obtaining module and a wave combining module:
the first receiving module is used for receiving optical signals to be processed;
the determining module is used for determining an O waveband optical signal in the optical signal to be processed;
the acquisition module is configured to acquire a target O-band optical signal at preset intervals in the O-band optical signal, decompose the O-band optical signal according to a preset wavelength interval or a preset frequency interval to obtain a decomposed O-band optical signal, and determine a target decomposed O-band optical signal meeting a preset standard from the decomposed O-band optical signal as the target O-band optical signal, where the target decomposed O-band optical signal includes wavelength bands having wavelengths of 1260nm, 1265nm, 1270nm, 1275nm, 1280nm, 1285nm, 1290nm, 1295nm, 1300nm, 1305nm, 1310nm, 1315nm, 1320nm, 1325nm, 1330nm, 1335nm, 1340nm, 1345nm, 1350nm, 1355nm, 1360nm, 1365nm, and 1370 nm;
the wave combination module is configured to synthesize the target O-band optical signal into a target optical signal and transmit the target optical signal to an O-band-based optical signal receiving device, so that the O-band-based optical signal receiving device decomposes the target optical signal into the target O-band optical signal and outputs the target O-band optical signal as a 5G fronthaul optical network; wherein the O-band based optical signal receiving apparatus includes a passive demultiplexer;
and the optical fiber circuit automatic switching protection device is arranged on the communication optical cable connecting the O waveband-based optical signal transmitting equipment and the O waveband-based optical signal receiving equipment, so that the signal transmission safety is protected.
5. An optical signal receiving device based on O wave band is characterized in that the device is applied to optical signal receiving equipment based on O wave band, the optical signal receiving equipment based on O wave band comprises a passive wave splitter, and the device comprises a second receiving module, a wave splitting module and an output module;
the second receiving module is used for receiving a beam of target optical signal which is sent by the O-waveband optical signal transmitting equipment and synthesized by the target O-waveband optical signal; wherein the O-band based optical signal transmitting device comprises a passive combiner;
the wavelength division module is used for decomposing the target optical signal into the target O waveband optical signal, wherein the target O waveband optical signal is decomposed into wavelength bands with wavelengths of 1260nm, 1265nm, 1270nm, 1275nm, 1280nm, 1285nm, 1290nm, 1295nm, 1300nm, 1305nm, 1310nm, 1315nm, 1320nm, 1325nm, 1330nm, 1335nm, 1340nm, 1345nm, 1350nm, 1355nm, 1360nm, 1365nm and 1370 nm;
the output module is configured to output the target O-band optical signal, so that the target O-band optical signal serves as a 5G fronthaul optical network;
and the optical fiber circuit automatic switching protection device is arranged on the communication optical cable connecting the O waveband-based optical signal transmitting equipment and the O waveband-based optical signal receiving equipment, so that the signal transmission safety is protected.
6. An optical signal transmitting device based on O waveband is characterized by comprising an optical receiver, a wave processor and a passive wave combiner;
the optical receiver and the passive wave combiner are respectively connected with the wave processor;
the optical receiver is used for receiving an optical signal to be processed;
the wave processor is used for extracting an O wave band optical signal in the optical signal to be processed; decomposing the O waveband optical signal according to a preset wavelength interval or a preset frequency interval to obtain a decomposed O waveband optical signal, and determining a target decomposed O waveband optical signal meeting a preset standard from the decomposed O waveband optical signal as a target O waveband optical signal, wherein the target decomposed O waveband optical signal comprises 1260nm, 1265nm, 1270nm, 1275nm, 1280nm, 1285nm, 1290nm, 1295nm, 1300nm, 1305nm, 1310nm, 1315nm, 1320nm, 1325nm, 1330nm, 1335nm, 1340nm, 1345nm, 1350nm, 1355nm, 1360nm, 1365nm and 1370nm wavelength bands;
the passive combiner is configured to combine the target O-band optical signal into a target optical signal and output the target optical signal, so that the O-band-based optical signal receiving device receives the target optical signal, decomposes the target optical signal into the target O-band optical signal, and outputs the target O-band optical signal as a 5G fronthaul optical network; wherein the O-band based optical signal receiving apparatus includes a passive demultiplexer;
and the optical fiber circuit automatic switching protection device is arranged on the communication optical cable connecting the O waveband-based optical signal transmitting equipment and the O waveband-based optical signal receiving equipment, so that the signal transmission safety is protected.
7. An optical signal receiving device based on an O waveband is characterized by comprising a passive wave splitter and an optical output device;
the passive wave separator is connected with the optical output device;
the passive wave splitter is used for receiving a beam of target optical signal which is sent by the O wave band optical signal transmitting equipment and synthesized by the target O wave band optical signal; decomposing the target optical signal into the target O-band optical signal, wherein the target O-band optical signal is decomposed into bands of wavelengths of 1260nm, 1265nm, 1270nm, 1275nm, 1280nm, 1285nm, 1290nm, 1295nm, 1300nm, 1305nm, 1310nm, 1315nm, 1320nm, 1325nm, 1330nm, 1335nm, 1340nm, 1345nm, 1350nm, 1355nm, 1360nm, 1365nm, 1370 nm; the optical signal transmitting device based on the O wave band comprises a passive wave combiner;
the optical output device is configured to output the target O-band optical signal, so that the target O-band optical signal serves as a 5G fronthaul optical network;
and the optical fiber circuit automatic switching protection device is arranged on the communication optical cable connecting the O waveband-based optical signal transmitting equipment and the O waveband-based optical signal receiving equipment, so that the signal transmission safety is protected.
8. An O-band-based wavelength division multiplexing system is characterized by comprising an O-band-based optical signal receiving device and an O-band-based optical signal transmitting device;
the optical signal transmitting equipment based on the O wave band comprises an optical receiver, a wave processor and a passive combiner, wherein the optical receiver and the passive combiner are respectively connected with the wave processor;
the optical signal receiving equipment based on the O wave band comprises a passive wave splitter and an optical output device, wherein the passive wave splitter is connected with the optical output device;
the passive combiner is connected with the passive wave separator through a communication optical cable;
the optical receiver is used for receiving an optical signal to be processed;
the wave processor is used for extracting an O wave band optical signal in the optical signal to be processed; decomposing the O waveband optical signal according to a preset wavelength interval or a preset frequency interval to obtain a decomposed O waveband optical signal, and determining a target decomposed O waveband optical signal meeting a preset standard from the decomposed O waveband optical signal as a target O waveband optical signal, wherein the target decomposed O waveband optical signal comprises 1260nm, 1265nm, 1270nm, 1275nm, 1280nm, 1285nm, 1290nm, 1295nm, 1300nm, 1305nm, 1310nm, 1315nm, 1320nm, 1325nm, 1330nm, 1335nm, 1340nm, 1345nm, 1350nm, 1355nm, 1360nm, 1365nm and 1370nm wavelength bands;
the passive combiner is configured to combine the target O-band optical signal into a target optical signal and output the target optical signal, so that the O-band-based optical signal receiving device receives the target optical signal, decomposes the target optical signal into the target O-band optical signal, and outputs the target O-band optical signal as a 5G fronthaul optical network; wherein the O-band based optical signal receiving apparatus includes a passive demultiplexer;
the optical fiber circuit automatic switching protection device is arranged on a communication optical cable connecting the O waveband-based optical signal transmitting equipment and the O waveband-based optical signal receiving equipment, so that the signal transmission safety is protected;
the passive wave splitter is used for receiving a beam of target optical signal which is sent by the O wave band optical signal transmitting equipment and synthesized by the target O wave band optical signal; decomposing the target optical signal into the target O-band optical signal, wherein the target O-band optical signal is decomposed into bands of wavelengths of 1260nm, 1265nm, 1270nm, 1275nm, 1280nm, 1285nm, 1290nm, 1295nm, 1300nm, 1305nm, 1310nm, 1315nm, 1320nm, 1325nm, 1330nm, 1335nm, 1340nm, 1345nm, 1350nm, 1355nm, 1360nm, 1365nm, 1370 nm; the optical signal transmitting device based on the O wave band comprises a passive wave combiner;
the optical output device is configured to output the target O-band optical signal, so that the target O-band optical signal serves as a 5G fronthaul optical network;
and the optical fiber circuit automatic switching protection device is arranged on the communication optical cable connecting the O waveband-based optical signal transmitting equipment and the O waveband-based optical signal receiving equipment, so that the signal transmission safety is protected.
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| WO2018039206A1 (en) * | 2016-08-22 | 2018-03-01 | Commscope Technologies Llc | O-band optical communication system with dispersion compensation |
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