CN111698031B - A membrane type optical fiber coding storage and identification system - Google Patents
A membrane type optical fiber coding storage and identification system Download PDFInfo
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- CN111698031B CN111698031B CN202010513480.7A CN202010513480A CN111698031B CN 111698031 B CN111698031 B CN 111698031B CN 202010513480 A CN202010513480 A CN 202010513480A CN 111698031 B CN111698031 B CN 111698031B
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 86
- 239000012528 membrane Substances 0.000 title claims abstract description 10
- 230000015654 memory Effects 0.000 claims abstract description 33
- 230000003287 optical effect Effects 0.000 claims description 25
- 238000012360 testing method Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 7
- 238000013500 data storage Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35338—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
- G01D5/35354—Sensor working in reflection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Optical Communication System (AREA)
Abstract
本发明公开了一种膜式光纤编码存储器，包括多层重叠一起的单片光纤膜，所述单片光纤膜分割为尺寸相同的多个点位，每个所述点位可根据存储需要覆特定波长的反射膜，所述反射膜上相应反射光波的波长代表所存储的信息数据。通过光线编码具有唯一识别特性，将其构造成一层层具有数据存储功能的膜式结构，不同波长的膜组合成不同膜式光纤编码，不同的光纤编码代表不同的信息，多个光纤编码组成完整的信息数据，相比现有的存储器，膜式光纤编码存储器的无源特性使得其具有长时间存储且成本低廉的优势。
The present invention discloses a membrane-type optical fiber coding memory, comprising a plurality of overlapping single-piece optical fiber membranes, wherein the single-piece optical fiber membrane is divided into a plurality of points of the same size, each of which can be covered with a reflective membrane of a specific wavelength according to storage needs, and the wavelength of the corresponding reflected light wave on the reflective membrane represents the stored information data. The light coding has a unique identification characteristic, and is constructed into a layer of membrane-type structures with data storage functions. Membranes of different wavelengths are combined into different membrane-type optical fiber codes, and different optical fiber codes represent different information. Multiple optical fiber codes form complete information data. Compared with existing memories, the passive characteristics of the membrane-type optical fiber coding memory enable it to have the advantages of long-term storage and low cost.
Description
Technical Field
The invention relates to the field of optical fiber communication, in particular to a film type optical fiber coding memory and an identification system.
Background
In the field of optical fiber communication, an optical fiber code consists of a plurality of optical fiber gratings with different wavelengths, and the application range of the optical fiber code is limited to optical devices such as an optical fiber laser, a light filter, a dispersion compensator, an optical fiber grating sensor and the like, but the potential of the optical fiber gratings is not completely released.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the film type optical fiber coding memory which can realize long-time storage and has low cost, and also provides an identification system of the film type optical fiber coding memory.
According to the embodiment of the first aspect of the invention, the film type optical fiber coding memory comprises a plurality of layers of single optical fiber films which are overlapped together, the single optical fiber films are divided into a plurality of points with the same size, each point can be covered with a reflecting film with a specific wavelength according to storage requirements, and the wavelength of a corresponding reflecting light wave on the reflecting film represents stored information data.
The film type optical fiber code identification system at least has the following beneficial effects that the film type optical fiber code identification system has unique identification characteristic through the optical fiber code, the film type optical fiber code identification system is constructed into a film type structure with a data storage function layer by layer, films with different wavelengths are combined into different film type optical fiber codes, the different optical fiber codes represent different information, and a plurality of optical fiber codes form complete information data.
According to some embodiments of the first aspect of the invention, the specific wavelength of the reflective film on each of said spots is the same and/or different.
According to some embodiments of the first aspect of the invention, the hierarchy of monolithic optical fiber films and the dots represent address information of stored information data.
According to the second aspect of the invention, the identification system for the film type optical fiber coding memory comprises a light source module, a circulator, an optical fiber, a waveform detector and a main controller, wherein the light source module is used for outputting optical wave signals for testing, the circulator is provided with a first port, a second port and a third port, the first port is connected with the output end of the light source module, the input end of the optical fiber is connected with the second port of the circulator, the output end of the optical fiber is connected with the film type optical fiber coding memory, the input end of the waveform detector is connected with the third port of the circulator, and the main controller is respectively and electrically connected with the light source module and the waveform detector.
The identification system of the film type optical fiber code memory at least has the following beneficial effects that the identification system is specially used for the film type optical fiber code memory and is equivalent to a reader of the film type optical fiber code memory, the film type optical fiber code memory has unique identification characteristics through optical codes, the film type optical fiber code memory is constructed into a film type structure with a data storage function layer by layer, films with different wavelengths are combined into different film type optical fiber codes, the different optical fiber codes represent different information, and a plurality of optical fiber codes form complete information data.
According to some embodiments of the second aspect of the present invention, the light source module includes a driver capable of adjusting an output current and a light source driven by the driver, and the driver is electrically connected with the main controller.
According to some embodiments of the second aspect of the invention, the light source is a narrow bandwidth light source or a pulsed light source.
According to some embodiments of the second aspect of the present invention, the light source module further includes a first SOA optical switch electrically connected to the main controller, the first SOA optical switch is connected between the light source and the first port of the circulator, the light source adopts a large bandwidth light source, and a second SOA optical switch is disposed between the input end of the waveform detector and the third port of the circulator, and the second SOA optical switch is electrically connected to the main controller.
According to some embodiments of the second aspect of the invention, the waveform detector employs a demodulator for achieving separation and wavelength measurement of the light waves.
According to some embodiments of the second aspect of the invention, the master controller employs an FPGA controller.
Additional aspects and advantages of the invention 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 invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention 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 plan view of a membrane type optical fiber code memory according to an embodiment of the first aspect of the present invention;
FIG. 2 is a schematic plan view of a monolithic optical fiber film according to an embodiment of the first aspect of the present invention;
FIG. 3 is a schematic cross-sectional view of a membrane-type optical fiber encoded memory according to an embodiment of the first aspect of the present invention;
FIG. 4 is a schematic diagram of a membrane type optical fiber code memory identification system according to an embodiment of the second aspect of the present invention.
Reference numerals:
The light source module 100, the driver 110, the light source 120, the first SOA optical switch 130, the second SOA optical switch 140;
circulator 200, optical fiber 300, film type optical fiber code memory 400, reflective film 401, spot 402, monolithic optical fiber film 403, waveform detector 500, and main controller 600.
Detailed Description
Embodiments of the present invention 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 invention.
In the description of the present invention, 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 invention 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 invention.
In the description of the present invention, 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 invention 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 to 3, a film optical fiber coding memory according to an embodiment of the first aspect of the present disclosure includes a plurality of stacked single optical fiber films 403, where the single optical fiber films 403 are divided into a plurality of spots 402 with the same size, each of the spots may be covered with a reflective film 401 with a specific wavelength according to storage requirements, and the wavelength of a corresponding reflected light wave on the reflective film 401 represents stored information data.
The optical code has unique identification characteristic, the optical code is constructed into a film structure with a data storage function layer by layer, films with different wavelengths are combined into different film optical fiber codes, the different optical fiber codes represent different information, and a plurality of optical fiber codes form complete information data.
In some embodiments of the first aspect of the present invention, the specific wavelength of the reflective film 401 is the same and/or different on each of the spots.
In some embodiments of the first aspect of the present invention, the level of monolithic fiber optic film 403 and the location 402 represent address information of the stored information data, the level of monolithic fiber optic film 403 being the upper level address of the location 402.
As shown in fig. 4, the identification system of the film type optical fiber code memory according to the second embodiment of the present invention includes a light source module 100 for outputting a light wave signal for testing, a circulator 200 having a first port, a second port and a third port, the first port being connected to an output end of the light source module 100, an optical fiber 300 having an input end connected to the second port of the circulator 200, an output end of the optical fiber 300 being connected to the film type optical fiber code memory 400, a waveform detector 500 having an input end of the waveform detector 500 being connected to the third port of the circulator 200, and a main controller 600 electrically connected to the light source module 100 and the waveform detector 500, respectively.
The working process is that the main controller 600 controls the light source module 100 to output light wave signals, the light wave signals enter through the first port of the circulator 200 and are output to the optical fiber 300 and the film type optical fiber coding memory 400, the film type optical fiber coding memory 400 reflects light waves with specific wavelengths, the wave detector 500 acquires the reflected light waves and feeds the reflected light waves back to the main controller 600 sequentially through the optical fiber 300, the second port of the circulator 200 and the third port of the circulator 200, and the main controller 600 acquires the film type optical fiber coding for the wavelengths of the reflected light waves.
In some embodiments of the second aspect of the present invention, the light source module 100 includes a driver 110 with adjustable output current and a light source 120 driven by the driver 110, the driver 110 is electrically connected to the main controller 600, the driver 110 supplies power to the light source, the driver 110 is controlled by the main controller 600, and the output current is controlled according to the calculated light intensity threshold value of the test point on the optical fiber, so as to control the light intensity emitted by the light source 120.
In some embodiments of the second aspect of the present invention, the light source 120 is a narrow bandwidth light source or a pulsed light source.
In view of the large wavelength band required for optical fiber encoding, in some embodiments of the first aspect of the present invention, the optical source module 100 of the optical source 120 using the large bandwidth optical source further includes a first SOA optical switch 130 electrically connected to the main controller 600, the first SOA optical switch 130 is connected between the optical source 120 and the first port of the circulator 200, and a second SOA optical switch 140 is disposed between the input end of the waveform detector 500 and the third port of the circulator 200, and the second SOA optical switch 140 is electrically connected to the main controller 600.
The first SOA optical switch 130 and the second SOA optical switch 140 have the functions of high-speed opening and closing, and have the function of amplifying light waves. The two SOAs form pulse control for emitting and receiving light waves, so that the light waves are input into the optical fiber, the optical fiber is connected with the optical fiber to back reflect and scatter the light waves, and the light intensity transmission distance is obtained by multiplying the switching time difference between the two light waves by the light velocity.
In some embodiments of the second aspect of the present invention, the waveform detector 500 preferably employs a demodulator for effecting separation and wavelength measurement of the light waves.
In some embodiments of the two aspects of the present invention, the master controller 600 is preferably an FPGA controller.
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 invention. 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.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (9)
1. A film type optical fiber coding memory is characterized by comprising a plurality of layers of single optical fiber films (403) which are overlapped together, wherein the single optical fiber films (403) are divided into a plurality of points (402) with the same size, each point (402) can be covered with a reflecting film (401) with a specific wavelength according to storage requirements, and the wavelength of a corresponding reflected light wave on the reflecting film (401) represents stored information data.
2. The film optical fiber code storage according to claim 1, wherein the specific wavelength of the reflective film (401) on each spot (402) is the same and/or different.
3. The film type optical fiber code memory according to claim 1, wherein said level of said monolithic optical fiber film (403) and said point location represent address information of stored information data.
4. An identification system for a film type optical fiber code memory according to any one of claims 1 to 3, comprising
A light source module (100) for outputting a light wave signal for test;
A circulator (200), the circulator (200) having a first port, a second port, and a third port, the first port being connected to an output of the light source module (100);
The input end of the optical fiber (300) is connected with the second port of the circulator (200), and the output end of the optical fiber (300) is connected with the membrane type optical fiber coding memory;
the input end of the waveform detector (500) is connected with the third port of the circulator (200);
and the main controller (600) is electrically connected with the light source module (100) and the waveform detector (500) respectively.
5. The identification system of a film type optical fiber code memory according to claim 4, wherein said light source module (100) comprises a driver (110) capable of adjusting an output current and a light source (120) driven by said driver (110), said driver (110) being electrically connected to said main controller (600).
6. The identification system of a film optical fiber code memory according to claim 5, wherein said light source (120) is a narrow bandwidth light source or a pulsed light source.
7. The identification system of a film type optical fiber code memory according to claim 5, wherein said light source module (100) further comprises a first SOA optical switch (130) electrically connected to said main controller (600), said first SOA optical switch (130) is connected between said light source (120) and a first port of said circulator (200), said light source (120) adopts a large bandwidth light source, a second SOA optical switch (140) is provided between an input end of said waveform detector (500) and a third port of said circulator (200), and said second SOA optical switch (140) is electrically connected to said main controller (600).
8. The identification system of a film type optical fiber code memory according to claim 4, wherein said waveform detector (500) employs a demodulator for realizing separation of light waves and wavelength measurement.
9. The identification system of a film type optical fiber code memory according to claim 4, wherein said main controller (600) is an FPGA controller.
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| CN114114545B (en) * | 2021-11-30 | 2025-03-14 | 中山水木光华电子信息科技有限公司 | A method for processing optical fiber coding by fiber rod taper |
| CN114124288B (en) * | 2021-12-09 | 2023-07-18 | 中山水木光华电子信息科技有限公司 | All-optical switching communication system and method based on optical fiber coding addressing |
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| CN110057385A (en) * | 2019-04-10 | 2019-07-26 | 中山水木光华电子信息科技有限公司 | Identification system based on optical fiber multilayer reflecting surface combined coding |
| CN212163338U (en) * | 2020-06-08 | 2020-12-15 | 中山水木光华电子信息科技有限公司 | A Membrane Optical Fiber Code Memory and Identification System |
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| US10520602B2 (en) * | 2015-11-30 | 2019-12-31 | Luminar Technologies, Inc. | Pulsed laser for lidar system |
| US10432302B1 (en) * | 2017-06-26 | 2019-10-01 | Amazon Technologies, Inc. | Bidirectional optical fiber auto-notifier test system |
| US10697825B2 (en) * | 2017-07-12 | 2020-06-30 | Fbs, Inc. | Omnidirectional optical fiber Bragg gratings for ultrasonic guided wave sensing and associate source location methods |
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| CN110057385A (en) * | 2019-04-10 | 2019-07-26 | 中山水木光华电子信息科技有限公司 | Identification system based on optical fiber multilayer reflecting surface combined coding |
| CN212163338U (en) * | 2020-06-08 | 2020-12-15 | 中山水木光华电子信息科技有限公司 | A Membrane Optical Fiber Code Memory and Identification System |
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