CN219227616U - Point-to-multiple all-optical communication system based on optical fiber coding address code - Google Patents
Point-to-multiple all-optical communication system based on optical fiber coding address code Download PDFInfo
- Publication number
- CN219227616U CN219227616U CN202122956628.7U CN202122956628U CN219227616U CN 219227616 U CN219227616 U CN 219227616U CN 202122956628 U CN202122956628 U CN 202122956628U CN 219227616 U CN219227616 U CN 219227616U
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- optical
- communication
- point
- circulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a point-to-multiple all-optical communication system based on optical fiber coding address codes, which comprises: the optical splitters are connected in series through the main optical fiber, and the optical splitting end of each optical splitter is connected with a branch optical fiber; a plurality of communication terminals, which are connected to the branch optical fibers of the plurality of optical splitters in a one-to-one correspondence manner; each communication terminal is provided with an optical fiber code arranged on a branch optical fiber, the optical fiber code consists of a plurality of transmission type optical fiber gratings with different center wavelengths, and the optical fiber codes of each communication terminal are different; and the communication master station is connected with the plurality of optical splitters in series and is used for identifying the optical fiber codes and communicating with the communication terminal. The scheme utilizes the optical identifiable characteristic of optical fiber coding to realize an all-optical communication system with a single-point to multi-point communication structure, and effectively solves the problems of data overhead, long conversion time, high energy consumption and the like of the traditional single-point to multi-point optical fiber communication system based on the optical splitter.
Description
Technical Field
The utility model relates to the field of optical fiber communication, in particular to a point-to-multiple all-optical communication system based on an optical fiber coding address code.
Background
The conventional optical communication system using an optical splitter is PON communication, and a point-to-multipoint optical communication system may be used, which uses a master station to broadcast data, and the terminal receives an optical signal and converts the optical signal into a data signal, and then determines whether the optical signal is required by the terminal. The communication mode wastes data overhead, has long conversion time and increases the energy consumption of the terminal. There is a need for a communication system and method that directly enables optical signal selection.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a point-to-multiple all-optical communication system based on the optical fiber coding address code, which can be identified and stored.
According to an embodiment of the first aspect of the present utility model, a point-to-multiple all-optical communication system based on an optical fiber coding address code includes: the optical splitters are connected in series through a main optical fiber, and the light splitting end of each optical splitter is connected with a branch optical fiber; a plurality of communication terminals, wherein the communication terminals are connected with the branch optical fibers of the optical splitters in a one-to-one correspondence manner; each communication terminal is provided with an optical fiber code arranged on the branch optical fiber, the optical fiber code consists of a plurality of transmission optical fiber gratings with different center wavelengths, and the optical fiber codes of each communication terminal are different; and a communication master station connected to the plurality of optical splitters in series, for identifying the optical fiber code and communicating with the communication terminal.
According to the point-to-multiple all-optical communication system based on the optical fiber coding address code, the embodiment of the utility model has at least the following beneficial effects: the scheme utilizes the optical identifiable characteristic of optical fiber coding to realize an all-optical communication system with a single-point to multi-point communication structure, and effectively solves the problems of data overhead, long conversion time, high energy consumption and the like of the traditional single-point to multi-point optical fiber communication system based on the optical splitter.
According to some embodiments of the first aspect of the present utility model, the communication terminal includes a terminal processing chip, a plurality of first pulse light sources, a first wavelength division multiplexer, a first circulator, and a first optical wave collector, where the terminal processing chip is connected to the plurality of first pulse light sources and the first optical wave collector, the number and central wavelengths of the first pulse light sources and the transmission fiber gratings are consistent, output ends of the plurality of first pulse light sources are all connected to the first wavelength division multiplexer, an output end of the first wavelength division multiplexer is connected to an input end of the first circulator, an output end of the first circulator is connected to the branch optical fiber, and an optical wave reflection end of the first circulator is connected to the first optical wave collector.
According to some embodiments of the first aspect of the present utility model, the communication master station includes a master station processing chip, n second pulse light sources, a second wavelength division multiplexer, a second circulator, and a second optical wave collector, where the master station processing chip is connected to the n second pulse light sources and the second optical wave collector, the number n of the second pulse light sources is consistent with the number of central wavelengths of the transmissive fiber bragg grating, output ends of the n second pulse light sources are all connected to the second wavelength division multiplexer, output ends of the second wavelength division multiplexer are connected to an input end of the second circulator, output ends of the second circulator are connected to the branch optical fibers, and optical wave reflection ends of the second circulator are connected to the second optical wave collector.
According to some embodiments of the first aspect of the present utility model, a splitting ratio of the trunk fiber to the branch fiber of the splitter is 99:1.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic diagram of a point-to-multiple all-optical communication system according to an embodiment of the first aspect of the present utility model;
fig. 2 is a schematic diagram of a communication terminal according to an embodiment of the first aspect of the present utility model;
FIG. 3 is a schematic diagram of an optical fiber encoding structure according to an embodiment of the first aspect of the present utility model;
FIG. 4 is a schematic diagram of a fiber optic code spectrum according to an embodiment of the first aspect of the present utility model;
FIG. 5 is a schematic diagram of a communication master station according to an embodiment of the first aspect of the utility model;
FIG. 6 is a schematic diagram of a time domain spectrum of light waves collected by a communication master station according to an embodiment of the first aspect of the present utility model;
FIG. 7 is a spectrum corresponding to the peak of the time domain spectrum in FIG. 6;
fig. 8 is a schematic flow chart of a point-to-multiple all-optical communication method according to an embodiment of the second aspect of the present utility model;
FIG. 9 is a schematic diagram of an initialization measurement procedure according to an embodiment of the second aspect of the present utility model;
FIG. 10 is a flow chart of a primary station broadcasting or transmitting information data to a designated terminal according to an embodiment of the second aspect of the present utility model;
fig. 11 is a flow chart of a process of transmitting information data from a terminal to a master station according to an embodiment of the second aspect of the present utility model.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1, a point-to-multiple all-optical communication system based on an optical fiber coding address code according to an embodiment of the first aspect of the present application includes:
the optical splitters 100 are connected in series through the main optical fiber 110, and the optical splitting end of each optical splitter 100 is connected with a branch optical fiber 120;
a plurality of communication terminals 200, wherein the plurality of communication terminals 200 are connected to the branch optical fibers 120 of the plurality of optical splitters 100 in a one-to-one correspondence; each of the communication terminals 200 has a fiber code 201 disposed on the branch optical fiber 120, as shown in fig. 3 and 4, the fiber code 201 is composed of a plurality of transmission fiber gratings with different center wavelengths, and the fiber codes 201 of each of the communication terminals 200 are different; the transmission type fiber bragg grating only transmits light waves with corresponding central wavelengths, the rest of the light waves are reflected, and a plurality of transmission type fiber bragg gratings with different central wavelengths form a complete transmission spectrum, so that only corresponding part of central wavelengths can transmit, and the rest of the light waves are reflected. The number of central wavelengths determines the number of pulsed light sources;
the communication master station 300 is connected to the optical splitters 100 connected in series, and is configured to identify the optical fiber code, communicate with the communication terminal 200, construct an initialization routing table of the access terminal, implement downward communication transmission and data verification of the terminal, and implement information acquisition of a new access terminal.
In operation, the communication master station 300 transmits an initialized measurement light wave to the plurality of communication terminals 200, the light codes of each communication terminal 200 reflect the light wave containing the light code information to the communication master station 300, the communication master station 300 analyzes according to the received light wave information, and recognizes the corresponding optical fiber code information, center wavelength, light intensity and distance, thereby completing the recognition of the communication terminal 200, and establishing a communication routing relationship.
As shown in fig. 2, in some embodiments of the first aspect of the present utility model, the communication terminal 200 includes a terminal processing chip 210, a plurality of first pulse light sources 220, a first wavelength division multiplexer 230, a first circulator 240, and a first optical wave collector 250, where the terminal processing chip 210 is connected to the plurality of first pulse light sources 220 and the first optical wave collector 250, the number and central wavelengths of the first pulse light sources 220 are consistent with each other, the output ends of the plurality of first pulse light sources 220 are connected to the first wavelength division multiplexer 230, the output end of the first wavelength division multiplexer 230 is connected to the input end of the first circulator 240, the output end of the first circulator 240 is connected to the branch optical fiber 120, and the optical wave reflecting end of the first circulator 240 is connected to the first optical wave collector 250.
Specifically, the terminal processing chip 210 controls the plurality of pulse light sources to perform light wave transmission synchronously according to a fixed pulse width; when the registration information is required to be sent, the corresponding pulse information is sent only once, and when the communication data is required to be sent, the binary corresponding pulse information is sent by adopting the corresponding pulse; the first wavelength division multiplexer 230 implements optical wave coupling of a plurality of narrow-band pulse light sources, and outputs one coupled complete optical wave; the first circulator 240 performs light wave transmission in a certain direction, and the first light wave collector 250 performs light wave collection and collects spectrum information of light waves input at each time point in real time.
As shown in fig. 5, in some embodiments of the first aspect of the present utility model, the communication master station 300 includes a master station processing chip 310, n second pulse light sources 320, a second wavelength division multiplexer 330, a second circulator 340, and a second optical wave collector 350, where the master station processing chip 310 is connected to the n second pulse light sources 320 and the second optical wave collector 350, the number n of the second pulse light sources 320 is consistent with the number of central wavelengths of the transmissive fiber bragg grating, output ends of the n second pulse light sources 320 are all connected to the second wavelength division multiplexer 330, an output end of the second wavelength division multiplexer 330 is connected to an input end of the second circulator 340, an output end of the second circulator 340 is connected to the branch optical fiber 120, and an optical wave reflection end of the second circulator 340 is connected to the second optical wave collector 350.
The master station processing chip 310 independently controls a single or a plurality of pulse light sources to emit light according to a set pulse broadband and interval, acquires waveform data acquired by the light wave acquisition device in real time, calculates the distance and the like of the acquired waveform data according to different time points, allows the transmission type fiber bragg grating to transmit only light waves with corresponding center wavelengths, reflects the rest light waves to form peaks as shown in fig. 6 and 7, analyzes the waveform data, and acquires information such as corresponding fiber coding wavelengths, energy and the like; the second wavelength division multiplexer 330 implements optical wave coupling of a plurality of narrow-band pulse light sources and outputs a coupled complete optical wave; the second circulator 340 realizes light wave transmission in a certain direction, and the second light wave collector 350 realizes light wave collection and collects spectrum information of light waves input at each time point in real time.
In some embodiments of the first aspect of the present utility model, the splitting ratio of the trunk optical fiber 110 to the branch optical fiber 120 of the optical splitter 100 is 99:1, that is, each communication terminal 200 splits into 1% of incident light, and the splitting ratio may be adjusted according to actual needs.
As shown in fig. 8, an embodiment of the present utility model is a point-to-multiple all-optical communication method based on an optical fiber coding address code, which is applied to the all-optical storage system, and the all-optical storage method includes the following steps:
different pulse widths are defined for the initial measurement light wave of the master station, the first data light wave sent downwards by the master station and the second data light wave sent upwards by the terminal respectively;
the communication master station 300 performs an initialization measurement to obtain the optical fiber coding information of a plurality of the communication terminals 200, and compiles a communication routing table;
the communication master station 300 broadcasts data to a plurality of the communication terminals 200 or transmits a first data light wave to a specified communication terminal 200 according to the communication routing table, and the communication terminal 200 receives and analyzes the first data light wave;
the communication terminal 200 transmits a second data light wave to the communication master station 300, and the communication master station 300 recognizes the communication terminal 200 by analyzing the optical fiber code information included in the second data light wave and completes the data uploading of the communication terminal 200.
The scheme utilizes pulse width to realize light wave type distinction, avoids information analysis consumption of light waves, and utilizes optical fiber coding to realize formulated light wave transmission from a main station to a terminal, and only complete wavelength combination can be completely collected by the terminal, thereby realizing addressable all-optical transmission of the optical fiber coding. The all-optical communication system method for realizing the single-point to multi-point communication structure by utilizing the optical identifiable characteristic of the optical fiber code effectively solves the problems of data overhead, long conversion time, high energy consumption and the like of the traditional single-point to multi-point optical fiber communication system based on the optical splitter 100.
In some embodiments of the second aspect of the present utility model, the pulse widths of the measurement light wave, the first data light wave and the second data light wave are k, k/16 and k/8 respectively, and the specific pulse widths can be adjusted according to actual needs.
As shown in fig. 9, in some embodiments of the second aspect of the present utility model, the communication master station 300 performs an initialization measurement to obtain the optical fiber code information of the plurality of communication terminals 200, and creates a communication routing table, including the steps of:
the communication master station 300 transmits an initialization measurement light wave, and the initialization measurement light wave passes through the main optical fiber 110, the optical splitter 100, and the branch optical fiber 120 to the communication terminal 200; specifically, the master station processing chip 310 drives n pulse light sources simultaneously, and transmits an initialized measurement light wave with pulse k; the light wave is output to the main optical fiber 110 through the second wavelength division multiplexer 330 and the second circulator 340, the main optical fiber 110 transmits the light wave to the optical splitter 100, and part of the light wave is split to the communication terminal 200 through the optical splitter 100;
the optical fiber code of the communication terminal 200 reflects the optical wave containing the optical fiber code information to the communication master station 300; because the pulse width of the light wave transmitted by the master station is k, the maximum width of the time domain reflection peak acquired by the master station is 2*k, and the acquired spectrum is the light wave reflected by the current transmission of the master station;
the communication master station 300 analyzes the optical fiber coding information, the light intensity and the distance according to the received emitted light waves, and constructs a communication routing table according to the optical fiber coding information, the light intensity and the distance.
As shown in fig. 10, in some embodiments of the second aspect of the present utility model, the communication master station 300 broadcasts data to a plurality of the communication terminals 200 or transmits a first data light wave to a designated communication terminal 200 according to the communication routing table, and the communication terminal 200 receives and parses the first data light wave, including the steps of
Selecting broadcasting data to a plurality of the communication terminals 200 or transmitting first data light waves to a designated communication terminal 200, dividing the broadcasting and designated terminals, and driving all light sources if broadcasting; if the terminal is the appointed terminal, only driving the light source combination corresponding to the appointed terminal; the first data light wave is composed of a plurality of pulse light waves, pulse interval time is programmed according to binary system, and the plurality of pulse light waves are consistent with the selected light coding center wavelength of the communication terminal 200;
the light codes of the communication terminal 200 reflect and transmit the first data light waves;
the reflected first data light waves are transmitted back to the communication master station 300, and the communication master station 300 analyzes the reflected first data light waves and verifies the first data light waves according to the analyzed central wavelength, pulse width and pulse interval time; the single pulse width is (k/16), is inconsistent with the pulse width of the initialization light wave, and can be distinguished;
the transmitted first data light wave is transmitted to the communication terminal 200, the communication terminal 200 receives the transmitted first data light wave, screens out spectrum pulses conforming to the central wavelength and pulse width of the optical fiber code of the communication terminal, and analyzes the spectrum pulses into data information according to a binary rule. If the pulse width is (k/16), the communication data is obtained; if the pulse width is k, discard.
As shown in fig. 11, in some embodiments of the second aspect of the present utility model, the communication terminal 200 transmits a second data light wave to the communication master station 300, and the communication master station 300 identifies the communication terminal 200 by parsing the optical fiber encoded information contained in the second data light wave, including the steps of:
the communication terminal 200 transmits a second data light wave to the communication master station 300, wherein the second data light wave is composed of a plurality of pulse light waves, pulse interval time is programmed according to binary system, and the pulse light waves are consistent with the light coding center wavelength of the communication terminal 200; specifically, the communication terminal 200 drives a plurality of pulse light sources simultaneously, and is composed of data with pulse width of k/8; taking the pulse as the light emitting time, wherein the interval of the pulse as the base number is N (k/8), N is an integer of 1 to 9, a binary pulse sequence is formed, the information to be transmitted is combined and compiled and transmitted according to the binary sequence, and then a plurality of light sources simultaneously transmit second data light waves;
the light codes of the communication terminal 200 reflect and transmit the second data light waves;
the reflected second data light waves are transmitted back to the communication terminal 200, and the communication terminal 200 analyzes the reflected second data light waves and verifies the second data light waves according to the analyzed central wavelength, pulse width and pulse interval time;
the transmitted second data light waves are transmitted to the communication master station 300, the communication master station 300 receives the transmitted second data light waves, screens out spectrum pulses which accord with the central wavelength and the pulse width of a communication routing table, and analyzes the spectrum pulses into data information according to a binary rule; and for the pulse light waves with the center wavelength not in the communication routing table, adding terminal information to the communication routing table.
In some embodiments of the second aspect of the present utility model, before the communication terminal 200 transmits the second data light wave to the communication master station 300, a registration light wave is transmitted, where the registration light wave is a single pulse light wave, so as to distinguish the second data light wave.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (4)
1. A point-to-multiple all-optical communication system based on optical fiber encoded address codes, comprising:
the optical splitters are connected in series through a main optical fiber, and the light splitting end of each optical splitter is connected with a branch optical fiber;
a plurality of communication terminals, wherein the communication terminals are connected with the branch optical fibers of the optical splitters in a one-to-one correspondence manner; each communication terminal is provided with an optical fiber code arranged on the branch optical fiber, the optical fiber code consists of a plurality of transmission optical fiber gratings with different center wavelengths, and the optical fiber codes of each communication terminal are different;
and a communication master station connected to the plurality of optical splitters in series, for identifying the optical fiber code and communicating with the communication terminal.
2. A point-to-multiple all-optical communication system based on optical fiber coded address codes as claimed in claim 1, wherein: the communication terminal comprises a terminal processing chip, a plurality of first pulse light sources, a first wavelength division multiplexer, a first circulator and a first light wave collector, wherein the terminal processing chip is respectively connected with the plurality of first pulse light sources and the first light wave collector, the number and the central wavelength of the first pulse light sources are consistent with those of the transmission fiber gratings, the output ends of the plurality of first pulse light sources are connected with the first wavelength division multiplexer, the output end of the first wavelength division multiplexer is connected with the input end of the first circulator, the output end of the first circulator is connected with the branch optical fibers, and the light wave reflecting end of the first circulator is connected with the first light wave collector.
3. A point-to-multiple all-optical communication system based on optical fiber coded address codes as claimed in claim 2, wherein: the communication master station comprises a master station processing chip, n second pulse light sources, a second wavelength division multiplexer, a second circulator and a second light wave collector, wherein the master station processing chip is respectively connected with the n second pulse light sources and the second light wave collector, the number n of the second pulse light sources is consistent with the number of the central wavelengths of the transmission fiber bragg gratings, the output ends of the n second pulse light sources are connected with the second wavelength division multiplexer, the output end of the second wavelength division multiplexer is connected with the input end of the second circulator, the output end of the second circulator is connected with the branch optical fiber, and the light wave reflecting end of the second circulator is connected with the second light wave collector.
4. A point-to-multiple all-optical communication system based on optical fiber coded address codes as claimed in claim 1, wherein: the beam splitting ratio of the main optical fiber to the branch optical fiber of the beam splitter is 99:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122956628.7U CN219227616U (en) | 2021-11-29 | 2021-11-29 | Point-to-multiple all-optical communication system based on optical fiber coding address code |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122956628.7U CN219227616U (en) | 2021-11-29 | 2021-11-29 | Point-to-multiple all-optical communication system based on optical fiber coding address code |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219227616U true CN219227616U (en) | 2023-06-20 |
Family
ID=86752753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122956628.7U Active CN219227616U (en) | 2021-11-29 | 2021-11-29 | Point-to-multiple all-optical communication system based on optical fiber coding address code |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219227616U (en) |
-
2021
- 2021-11-29 CN CN202122956628.7U patent/CN219227616U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114050886A (en) | Point-to-multipoint all-optical communication system and method based on optical fiber coding address codes | |
| CN114124288B (en) | All-optical switching communication system and method based on optical fiber coding addressing | |
| US4662003A (en) | System for electrooptical information transmission | |
| CN104169769B (en) | The NxN emission and reception module that walks abreast | |
| CN109560866B (en) | Passive optical network link monitoring system and method based on tunable laser | |
| US4405858A (en) | Light gate with controlled optical couplers | |
| CN219227616U (en) | Point-to-multiple all-optical communication system based on optical fiber coding address code | |
| CN112653509A (en) | Multi-wavelength polling optical fiber code identification system and method | |
| CN114124208B (en) | Optical fiber code identification system and method for eliminating physical point noise interference | |
| CN111693077A (en) | Optical fiber code identification system and method for automatically determining measurement threshold | |
| CN108880684B (en) | All-optical recognition and operation method based on optical fiber coding | |
| CN212254133U (en) | Optical fiber code identification system capable of automatically determining measurement threshold | |
| CN111934772B (en) | Optical fiber coding identification system and method based on differential automatic noise elimination | |
| US4833317A (en) | Optically powered resolver | |
| CN113904730A (en) | Optical fiber code identification and communication integrated system and control method | |
| CN101068136B (en) | Optical communication multichannel multiplexing method and system based on chromatic dispersion matching | |
| CN209313836U (en) | Passive optical network link monitoring system based on tunable laser | |
| CN112327272A (en) | Pulse-codable laser radar device and detection method thereof | |
| CN214281380U (en) | Optical fiber code identification system for multi-wavelength polling | |
| CN113676256A (en) | Safe optical transmission method based on superstructure fiber Bragg grating | |
| CN114063231A (en) | Fiber distribution board capable of identifying fiber core and short-distance communication system | |
| CN212620789U (en) | Optical fiber code identification system based on modulation mode | |
| CN111917464A (en) | Light splitter identification system and method based on light ray coding | |
| CN218450378U (en) | Addressable all-optical serial communication system | |
| CN212254132U (en) | Membrane type optical fiber coding and identifying system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |