CN111698031A - Membrane type optical fiber coding memory and identification system - Google Patents

Membrane type optical fiber coding memory and identification system Download PDF

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Publication number
CN111698031A
CN111698031A CN202010513480.7A CN202010513480A CN111698031A CN 111698031 A CN111698031 A CN 111698031A CN 202010513480 A CN202010513480 A CN 202010513480A CN 111698031 A CN111698031 A CN 111698031A
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China
Prior art keywords
optical fiber
light source
film
type optical
port
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CN202010513480.7A
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Chinese (zh)
Inventor
朱惠君
薛鹏
白金刚
毛志松
邬耀华
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Zhongshan Shuimu Guanghua Electronic Information Technology Co ltd
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Zhongshan Shuimu Guanghua Electronic Information Technology Co ltd
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Priority to CN202010513480.7A priority Critical patent/CN111698031A/en
Publication of CN111698031A publication Critical patent/CN111698031A/en
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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)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

The invention discloses a film type optical fiber coding memory, which comprises a plurality of layers of overlapped single-chip optical fiber films, wherein the single-chip optical fiber films are divided into a plurality of point positions with the same size, each point position can be coated with a reflecting film with a specific wavelength according to the storage requirement, and the wavelength of the corresponding reflected light wave on the reflecting film represents the stored information data. The light codes have unique identification characteristics, the film type structure with the data storage function is constructed layer by layer, films with different wavelengths are combined into different film type optical fiber codes, different optical fiber codes represent different information, and the plurality of optical fiber codes form complete information data.

Description

Membrane type optical fiber coding memory and identification system
Technical Field
The invention relates to the field of optical fiber communication, in particular to a membrane type optical fiber coding memory and an identification system.
Background
In the field of optical fiber communication, an optical fiber code is composed of a plurality of optical fiber gratings with different wavelengths, the application range of the optical fiber code is limited in optical devices such as optical fiber lasers, optical fiber filters, dispersion compensators, optical fiber grating sensors and the like, and the potential of the optical fiber gratings is not completely released.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a membrane type optical fiber coding memory, which can realize long-time storage and has low cost; the invention also provides an identification system of the membrane type optical fiber coding memory.
According to the first aspect of the present invention, a film type optical fiber coding memory comprises a plurality of layers of overlapped single optical fiber films, wherein the single optical fiber films are divided into a plurality of point locations with the same size, each point location can be covered with a reflective film with a specific wavelength according to the storage requirement, and the wavelength of the corresponding reflected light wave on the reflective film represents the stored information data.
The film type optical fiber coding identification system according to the first embodiment of the invention has at least the following advantages: the light codes have unique identification characteristics, the film type structure with the data storage function is constructed layer by layer, films with different wavelengths are combined into different film type optical fiber codes, different optical fiber codes represent different information, and the plurality of optical fiber codes form complete information data.
According to some embodiments of the first aspect of the present invention, the specific wavelength of the reflective film at each of said spots is the same and/or different.
According to some embodiments of the first aspect of the present invention, the level of the monolithic fiber membrane and the point location represent address information of the stored information data.
According to the embodiment of the second aspect of the invention, the identification system for the film type optical fiber coding memory comprises: the light source module is used for outputting a light wave signal for testing; the circulator is provided with a first port, a second port and a third port, and 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, and 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 electrically connected with the light source module and the waveform detector respectively.
The identification system of the film type optical fiber coding memory according to the second embodiment of the invention has at least the following beneficial effects: the film type optical fiber code memory 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 light 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, 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 comprises 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 present invention, the light source employs 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 is a high bandwidth light source; and a second SOA optical switch is arranged between the input end of the waveform detector and the third port of the circulator and is electrically connected with the main controller.
According to some embodiments of the second aspect of the present invention, the waveform detector employs a demodulator for achieving separation and wavelength measurement of light waves.
According to some embodiments of the second aspect of the invention, the master controller is 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 above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic plan view of a film type optical fiber coding 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 membrane according to an embodiment of the first aspect of the present invention;
FIG. 3 is a schematic cross-sectional view of a film-type optical fiber coding memory according to an embodiment of the first aspect of the present invention;
FIG. 4 is a schematic diagram of a film-type optical fiber code memory identification system according to a second embodiment of the present invention.
Reference numerals:
the light source module 100, the driver 110, the light source 120, the first SOA optical switch 130, and the second SOA optical switch 140;
circulator 200, optical fiber 300, film type optical fiber code memory 400, reflection film 401, point location 402, monolithic optical fiber film 403, waveform detector 500 and main controller 600.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to fig. 3, a film-type optical fiber coding memory according to an embodiment of the first aspect of the present disclosure includes a plurality of stacked monolithic optical fiber films 403, where the monolithic optical fiber films 403 are divided into a plurality of point locations 402 with the same size, each of the point locations may be covered with a reflective film 401 with a specific wavelength according to a storage requirement, and a wavelength of a corresponding reflected light wave on the reflective film 401 represents stored information data.
The light codes have unique identification characteristics, the film type structure with the data storage function is constructed layer by layer, films with different wavelengths are combined into different film type optical fiber codes, different optical fiber codes represent different information, and the 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 at each of said spots is the same and/or different.
In some embodiments of the first aspect of the present invention, the level of the monolithic fiber-optic membrane 403 and the point location 402 represent address information of the stored information data, and the level of the monolithic fiber-optic membrane 403 is the address of the previous level of the point location 402.
As shown in fig. 4, the system for identifying a film-type optical fiber coding memory according to a second embodiment of the present invention includes: a light source module 100 for outputting a light wave signal for testing; a circulator 200, wherein the circulator 200 has a first port, a second port and a third port, and the first port is connected with the output end 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 film type optical fiber coding memory 400; the input end of the waveform detector 500 is connected with the third port of the circulator 200; the main controller 600 is electrically connected to the light source module 100 and the waveform detector 500, respectively.
The working process is that the master controller 600 controls the light source module 100 to output a light wave signal, the light wave signal enters through the first port of the circulator 200, the light wave signal is output to the optical fiber 300 and the film type optical fiber coding memory 400 through the second port, the light wave with a specific wavelength is reflected by the film type optical fiber coding memory 400, the light wave signal sequentially passes through the optical fiber 300, the second port of the circulator 200 and the third port of the circulator 200, and the reflected light wave is obtained by the waveform detector 500 and fed back to the master controller 600; the master controller 600 obtains the film fiber code for the wavelength of the reflected light wave.
In some embodiments of the second aspect of the present invention, the light source module 100 includes a driver 110 capable of adjusting an 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 of the driver is controlled according to the calculated light intensity threshold of the test point on the optical fiber, so as to control the light intensity of the light source 120.
In some embodiments of the second aspect of the present invention, the light source 120 employs a narrow bandwidth light source or a pulsed light source.
In view of the larger wavelength band required by the optical fiber coding, in some embodiments of the first aspect of the present invention, the optical source module 100 further includes a first SOA optical switch 130 electrically connected to the main controller 600, where the first SOA optical switch 130 is connected between the optical source 120 and the first port of the circulator 200; a second SOA optical switch 140 is arranged 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 with the main controller 600.
The first SOA optical switch 130, the second SOA optical switch 140 and other two SOA optical switches have high-speed on and off functions, and simultaneously have a light wave amplification function. The two SOAs form pulse control of light wave sending and receiving, so that the light wave is input into the optical fiber, the optical fiber is connected to reflect and scatter the light wave, and the light intensity transmission distance is obtained by multiplying the opening and closing time difference between the two by the light speed.
In some embodiments of the second aspect of the present invention, the waveform detector 500 preferably employs a demodulator for achieving separation and wavelength measurement of the light waves.
In some embodiments of both aspects of the present invention, the main controller 600 preferably employs an FPGA controller.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (9)

1. A kind of membrane type optical fiber code memory, characterized by that: the optical fiber storage device comprises a plurality of layers of overlapped monolithic optical fiber films (403), wherein the monolithic optical fiber films (403) are divided into a plurality of point locations (402) with the same size, each point location (402) can be coated 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-type optical fiber coding memory according to claim 1, wherein: the specific wavelength of the reflective film (401) at each of said spots (402) is the same and/or different.
3. The film-type optical fiber coding memory according to claim 1, wherein: the level of the monolithic optical fiber membrane (403) and the point location represent address information of the stored information data.
4. An identification system for use in the film-type optical fiber code storage device according to any one of claims 1 to 3, wherein: comprises that
A light source module (100) for outputting a light wave signal for testing;
a circulator (200), wherein the circulator (200) is provided with a first port, a second port and a third port, and the first port is connected with the output end 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 film 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 respectively electrically connected with the light source module (100) and the waveform detector (500).
5. The identification system of a film-type optical fiber code storage device according to claim 4, wherein: the light source module (100) comprises a driver (110) capable of adjusting output current and a light source (120) driven by the driver (110), wherein the driver (110) is electrically connected with the main controller (600).
6. The identification system of a film-type optical fiber code storage device according to claim 5, wherein: the light source (120) adopts a narrow-bandwidth light source or a pulse light source.
7. The identification system of a film-type optical fiber code storage device according to claim 5, wherein: the light source module (100) further comprises a first SOA optical switch (130) electrically connected with the main controller (600), the first SOA optical switch (130) is connected between the light source (120) and the first port of the circulator (200), and the light source (120) adopts a high-bandwidth light source; and a second SOA optical switch (140) is arranged 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 with the main controller (600).
8. The identification system of a film-type optical fiber code storage device according to claim 4, wherein: the waveform detector (500) adopts a demodulator for realizing the separation of light waves and the measurement of wavelengths.
9. The identification system of a film-type optical fiber code storage device according to claim 4, wherein: the main controller (600) adopts an FPGA controller.
CN202010513480.7A 2020-06-08 2020-06-08 Membrane type optical fiber coding memory and identification system Pending CN111698031A (en)

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Application Number Priority Date Filing Date Title
CN202010513480.7A CN111698031A (en) 2020-06-08 2020-06-08 Membrane type optical fiber coding memory and identification system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114114545A (en) * 2021-11-30 2022-03-01 中山水木光华电子信息科技有限公司 Method for processing optical fiber code by fiber rod tapering
CN114124288A (en) * 2021-12-09 2022-03-01 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 and addressing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114114545A (en) * 2021-11-30 2022-03-01 中山水木光华电子信息科技有限公司 Method for processing optical fiber code by fiber rod tapering
CN114124288A (en) * 2021-12-09 2022-03-01 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 and addressing
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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