A membrane type optical fiber coding storage and identification system

Abstract

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

[0001] The present invention relates to the field of optical fiber communication, and in particular to a film-type optical fiber coding storage and identification system. Background Art

[0002] In the field of fiber-optic communications, fiber coding is composed of multiple fiber Bragg gratings of different wavelengths. Its application scope is limited to optical devices such as fiber lasers, optical filters, dispersion compensators and fiber Bragg grating sensors. The potential of fiber Bragg gratings has not yet been fully released. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a membrane-type optical fiber coding memory that can achieve long-term storage and low cost; the present invention also provides an identification system for the membrane-type optical fiber coding memory.

[0004] According to the first aspect of the present invention, a membrane-type optical fiber encoding storage device comprises multiple layers 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 film of a specific wavelength according to storage needs, and the wavelength of the corresponding reflected light wave on the reflective film represents the stored information data.

[0005] The membrane fiber optic coding identification system according to the first embodiment of the present invention has at least the following beneficial effects: the light coding has a unique identification characteristic, and is constructed into layers of membrane structures with data storage function. Membranes of different wavelengths are combined into different membrane fiber optic codes, different fiber optic codes represent different information, and multiple fiber optic codes constitute complete information data. Compared with existing memories, the passive characteristics of the membrane fiber optic coding memory give it the advantages of long-term storage and low cost.

[0006] According to some embodiments of the first aspect of the present invention, the specific wavelength of the reflective film at each of the points is the same and / or different.

[0007] According to some embodiments of the first aspect of the present invention, the layers of the single optical fiber film and the points represent address information of the stored information data.

[0008] According to the second aspect of the present invention, an identification system for the membrane-type optical fiber coded memory includes: a light source module, which is used to output a light wave signal for testing; a circulator, the circulator has a first port, a second port, and a third port, the first port is connected to the output end of the light source module; an optical fiber, the input end of the optical fiber is connected to the second port of the circulator, and the output end of the optical fiber is connected to the membrane-type optical fiber coded memory; a waveform detector, the input end of the waveform detector is connected to the third port of the circulator; and a main controller, which is electrically connected to the light source module and the waveform detector, respectively.

[0009] The identification system of the membrane type optical fiber coded memory according to the second embodiment of the present invention has at least the following beneficial effects: it is specially used for the membrane type optical fiber coded memory, which is equivalent to the reader of the membrane type optical fiber coded memory, and the membrane type optical fiber coded memory has a unique identification characteristic through light coding, and it is constructed into layers of membrane structures with data storage function, and membranes of different wavelengths are combined into different membrane type optical fiber codes, different optical fiber codes represent different information, and multiple optical fiber codes constitute complete information data. Compared with the existing memory, the passive characteristics of the membrane type optical fiber coded memory give it the advantages of long-term storage and low cost.

[0010] According to some embodiments of the second aspect of the present invention, the light source module includes a driver with adjustable output current and a light source driven by the driver, and the driver is electrically connected to the main controller.

[0011] According to some embodiments of the second aspect of the present invention, the light source is a narrow bandwidth light source or a pulse light source.

[0012] According to some embodiments of the second aspect of the present invention, the light source module also 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, and the light source adopts a large-bandwidth light source; a second SOA optical switch is arranged 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.

[0013] According to some embodiments of the second aspect of the present invention, the waveform detector uses a demodulator to achieve light wave separation and wavelength measurement.

[0014] According to some embodiments of the second aspect of the present invention, the main controller adopts an FPGA controller.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a schematic diagram of the planar structure of a membrane-type optical fiber encoding memory according to an embodiment of the first aspect of the present invention;

[0018] Figure 2 It is a schematic diagram of the planar structure of a single optical fiber film according to the first aspect of the present invention;

[0019] Figure 3 It is a schematic cross-sectional structure diagram of a film-type optical fiber encoding memory according to an embodiment of the first aspect of the present invention;

[0020] Figure 4 This is a schematic diagram of a membrane optical fiber coding memory identification system according to an embodiment of the second aspect of the present invention.

[0021] Reference numerals:

[0022] Light source module 100, driver 110, light source 120, first SOA optical switch 130, second SOA optical switch 140;

[0023] Circulator 200 , optical fiber 300 , film-type optical fiber coded memory 400 , reflective film 401 , point 402 , monolithic optical fiber film 403 , waveform detector 500 , main controller 600 . DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 therefore should not be understood as a limitation on the present invention.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] refer to Figures 1 to 3As shown, a membrane-type optical fiber encoding storage device according to the first aspect of the embodiment of the present technical solution comprises a single optical fiber membrane 403 with multiple layers overlapping each other, wherein the single optical fiber membrane 403 is divided into a plurality of points 402 of the same size, each of which can be covered with a reflective film 401 of a specific wavelength according to storage needs, and the wavelength of the corresponding reflected light wave on the reflective film 401 represents the stored information data.

[0028] Through the unique identification characteristics of light coding, it is constructed into layers of membrane structures with data storage functions. Membranes of different wavelengths are combined into different membrane fiber codes. Different fiber codes represent different information. Multiple fiber codes constitute complete information data. Compared with existing storage devices, the passive characteristics of membrane fiber coded storage devices give it the advantages of long-term storage and low cost.

[0029] In some embodiments of the first aspect of the present invention, the specific wavelength of the reflective film 401 at each of the points is the same and / or different.

[0030] In some embodiments of the first aspect of the present invention, the level of the single optical fiber film 403 and the point 402 represent the address information of the stored information data, and the level of the single optical fiber film 403 is the upper level address of the point 402.

[0031] like Figure 4 As shown, the identification system of the film-type optical fiber coded memory according to the second embodiment of the present invention includes: a light source module 100, which is used to output a light wave signal for testing; a circulator 200, wherein the circulator 200 has a first port, a second port, and a third port, wherein the first port is connected to the output end of the light source module 100; an optical fiber 300, wherein the input end of the optical fiber 300 is connected to the second port of the circulator 200, and the output end of the optical fiber 300 is connected to the film-type optical fiber coded memory 400; a waveform detector 500, wherein the input end of the waveform detector 500 is connected to the third port of the circulator 200; and a main controller 600, which is electrically connected to the light source module 100 and the waveform detector 500, respectively.

[0032] The working process is as follows: the main controller 600 controls the light source module 100 to output a light wave signal, which enters through the first port of the circulator 200 and is output from the second port to the optical fiber 300 and the membrane-type optical fiber coding memory 400; the membrane-type optical fiber coding memory 400 reflects a light wave of a specific wavelength, which passes through the optical fiber 300, the second port of the circulator 200, and the third end of the circulator 200 in sequence; the waveform detector 500 obtains the reflected light wave and feeds it back to the main controller 600; the main controller 600 obtains the membrane-type optical fiber coding by measuring the wavelength of the reflected light wave.

[0033] 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 to control its output current according to the calculated light intensity threshold of the test point on the optical fiber, thereby controlling the light intensity of the light source 120.

[0034] In some embodiments of the second aspect of the present invention, the light source 120 is a narrow bandwidth light source or a pulse light source.

[0035] In view of the large wavelength band required for optical fiber coding, in some embodiments of the first aspect of the present invention, the light source 120 adopts a large-bandwidth light source. The light source module 100 also includes a first SOA optical switch 130 electrically connected to the main controller 600, and the first SOA optical switch 130 is connected between the light 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 to the main controller 600.

[0036] The first SOA optical switch 130 and the second SOA optical switch 140 have the function of high-speed opening and closing, and also have the function of light wave amplification. The two SOAs form pulse control of sending and receiving light waves, realize input of light waves into the optical fiber, and at the same time receive the light waves reflected and scattered by the optical fiber. The opening and closing time difference between the two times the speed of light is the light intensity transmission distance.

[0037] In some embodiments of the second aspect of the present invention, the waveform detector 500 preferably adopts a demodulator to achieve separation of light waves and wavelength measurement.

[0038] In some embodiments of the second aspect of the present invention, the main controller 600 preferably adopts an FPGA controller.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A film-type optical fiber encoding memory, characterized in that: It comprises a single piece of optical fiber film (403) with multiple layers overlapping each other, wherein the single piece of optical fiber film (403) is divided into a plurality of points (402) of the same size, and each point (402) can be covered with a reflective film (401) of a specific wavelength according to storage needs, and the wavelength of the corresponding reflected light wave on the reflective film (401) represents the stored information data.

2. The film-type optical fiber encoding memory according to claim 1, characterized in that: The specific wavelength of the reflective film (401) at each point (402) is the same and / or different.

3. The film-type optical fiber encoding memory according to claim 1, characterized in that: The levels of the single optical fiber film (403) and the points represent address information of the stored information data.

4. An identification system for the film-type optical fiber coded memory according to any one of claims 1 to 3, characterized in that: include A light source module (100) is used to output a light wave signal for testing; 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 end of the light source module (100); An optical fiber (300), wherein an input end of the optical fiber (300) is connected to the second port of the circulator (200), and an output end of the optical fiber (300) is connected to the film-type optical fiber encoding memory; A waveform detector (500), wherein an input end of the waveform detector (500) is connected to a 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.

5. The identification system of the film-type optical fiber coded memory according to claim 4, characterized in that: The light source module (100) comprises a driver (110) capable of adjusting output current and a light source (120) driven by the driver (110); the driver (110) is electrically connected to the main controller (600).

6. The identification system of the film-type optical fiber coded memory according to claim 5, characterized in that: The light source (120) is a narrow bandwidth light source or a pulse light source.

7. The identification system of the film-type optical fiber coded memory according to claim 5, characterized in that: The light source module (100) further comprises a first SOA optical switch (130) electrically connected to the main controller (600), the first SOA optical switch (130) being connected between the light source (120) and a first port of the circulator (200), the light source (120) being a large bandwidth light source; a second SOA optical switch (140) being arranged between an input end of the waveform detector (500) and a third port of the circulator (200), the second SOA optical switch (140) being electrically connected to the main controller (600).

8. The identification system of the film-type optical fiber coded memory according to claim 4, characterized in that: The waveform detector (500) adopts a demodulator to realize light wave separation and wavelength measurement.

9. The identification system of the film-type optical fiber coded memory according to claim 4, characterized in that: The main controller (600) adopts an FPGA controller.

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