CN117938268A - Real-time coding information storage system and method based on long-short period mixed pulse signals - Google Patents
Real-time coding information storage system and method based on long-short period mixed pulse signals Download PDFInfo
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Abstract
The invention relates to a real-time coding information storage system and method for long-short period mixed pulse signals. The system comprises a pulse signal generating device, a pulse signal receiving and storing system and a pulse signal processing system; the pulse signal generating device is used for generating a mode locking pulse signal; the pulse signal receiving and storing system is used for photoelectric signal conversion, electric signal receiving and electric signal value storage; the pulse signal processing system is used for analyzing and processing pulse signals, after normalizing the values, the system carries out binary coding processing after identifying different threshold setting information, carries out matching identification on coded information and a text information base corresponding to different thresholds, and finally outputs corresponding text information. The invention adopts an all-fiber structure, does not need external signals for modulation, and has the characteristics of low cost, simple flow steps and convenient operation.
Description
Technical Field
The invention relates to the technical field of photoelectric information, in particular to a real-time coding information storage system and method based on long-short period mixed pulse signals.
Background
Mode-locked pulse lasers are widely used in the fields of information encryption, information storage, etc. At present, after the normalization processing is performed on the vector pulse signal in the "an encodable information system and method based on vector multiple period soliton pulsation" in the prior art CN114710209a, the vector pulse signal can only be represented as a binary sequence according to a threshold value, and the binary sequence is encoded as a text message. Information storage capacity and information that can be carried are limited.
Disclosure of Invention
The invention aims to provide a real-time coding information storage system and method based on long-short period mixed pulse signals, which do not need external signals to modulate, can express vector pulse signals into various binary sequences according to various thresholds, and can code the various binary sequences into various text information. The information storage capacity and the information that can be carried are greatly enhanced.
In order to achieve the above object, the present invention provides the following solutions:
A real-time encoded information storage system based on long and short period mixed pulse signals, comprising: the pulse signal generating device, the pulse signal receiving and storing system and the pulse signal processing system;
The pulse signal generating device is used for generating vector pulse soliton signals with 3 times of cycles and 43 times of cycles, vector separation is carried out on the vector pulse soliton signals with 3 times of cycles and 43 times of cycles, two vector pulse signals in mutually perpendicular directions are distinguished, and the vector pulse signals in one perpendicular direction are transmitted to the pulse signal receiving and storing system;
The pulse signal receiving and storing system is used for receiving and storing the vector pulse signals, converting the vector pulse signals into electric pulse signals, recording electric pulse signal data, including the cycle period and the pulse intensity amplitude of the electric pulse signals, and transmitting the obtained electric pulse signal data to the pulse signal processing system;
The pulse signal processing system is used for receiving the processed electric pulse signal data, binary coding is carried out on the obtained pulse signal data according to a set threshold value, and then coded information is converted into character information;
The threshold value includes 95%, 71%, 60% of the pulse intensity amplitude, the pulse intensity amplitude greater than or equal to the threshold value is encoded as 1, and the pulse intensity amplitude less than the threshold value is encoded as 0.
Optionally, the pulse signal generating device is a passive mode-locked fiber laser, including: laser diode pump source, wavelength division multiplexer, erbium-doped gain fiber, polarization independent isolator, polarization controller, 50:50, a saturable absorber, and a polarizing beamsplitter;
The laser diode pumping source is connected with the No. 1 input end of the wavelength division multiplexer, and then the output end of the wavelength division multiplexer, the erbium-doped gain fiber, the polarization independent isolator, the intracavity polarization controller and 50:50, the input end of the optical coupling out device, the No. 1 output end of the optical coupling out device, the saturable absorber and the b input end of the wavelength division multiplexer are sequentially connected, the c output end of the optical coupling out device, the extracavity polarization controller and the a input end of the polarization beam splitter are sequentially connected, and the b output end of the polarization beam splitter is connected with the pulse signal receiving and storing system;
the intracavity polarization controller is used for changing the birefringence and polarization state of the optical fiber, causing polarization modulation and intensity modulation among vector solitons, and generating soliton pulsation with periodic intensity modulation;
the extra-cavity polarization controller is used for changing the intensity amplitude of the pulse signals of the two components obtained by the polarization beam splitter.
Optionally, the pulse signal receiving and storing system includes: a photodetector, a digital oscilloscope;
the photoelectric detector is used for converting the received optical pulse signals into electric pulse signals and transmitting the electric pulse signals to the digital oscilloscope;
The digital oscilloscope is used for recording and storing electric pulse signal data, including the cycle period and the pulse intensity amplitude of the electric pulse signal, and transmitting the electric pulse signal data to the computer-end pulse signal processing system;
the computer-side pulse signal processing system is used for analyzing and processing the pulse signals, processing the electric pulse signal data to obtain binary coded information after the system identifies and sets the threshold value, and outputting and displaying text information by matching with information bases corresponding to different threshold values. The threshold value includes 95%, 71%, 60% of the pulse intensity amplitude, the pulse intensity amplitude greater than or equal to the threshold value is encoded as 1, and the pulse intensity amplitude less than the threshold value is encoded as 0
The converting the coded information into text information comprises the following steps: and setting a code reading start-stop position, after the system identifies the start-stop position information, carrying out matching identification on the code information and a corresponding text information base under a corresponding threshold value, and finally outputting matched text information.
The pulse signal processing system further includes an autocorrelation instrument and an RF spectrum analyzer.
A real-time coding information storage method based on long-short period mixed pulse signals is applicable to the real-time coding information storage system of long-short period mixed pulse signals, and comprises the following steps:
S1, generating a vector pulse soliton signal with a period which is 3 times and a period which is 43 times combined through a pulse signal generating device, carrying out vector separation on the vector pulse soliton signal with the period which is 3 times and the period which is 43 times combined, distinguishing two vector pulse signals in mutually perpendicular directions, and transmitting the vector pulse signal in one perpendicular direction to a pulse signal receiving and storing system;
s2, receiving and storing the vector pulse signals by using a pulse signal receiving and storing system, converting the vector pulse signals into electric pulse signals, recording electric pulse signal data comprising the cycle period and the pulse intensity amplitude of the electric pulse signals, and transmitting the obtained electric pulse signal data to a pulse signal processing system;
S3, the pulse signal processing system receives the processed electric pulse signal data, binary coding is carried out on the obtained pulse signal data according to a set threshold value, and then coding information is converted into text information;
the threshold value comprises 95%, 71%, 60% of the pulse intensity amplitude, the pulse intensity amplitude greater than or equal to the threshold value is encoded as 1, and the pulse intensity amplitude less than the threshold value is encoded as 0;
The pulse signal generating device is a passive mode locking fiber laser.
Optionally, the step S1 includes adjusting an intra-cavity polarization controller in the pulse signal generating device to generate a vector pulse signal, receiving, storing and processing electric pulse signal data recorded and output by the pulse signal receiving and storing system, and determining the number of soliton pulse periods in the vector pulse signal by a computer-side pulse information processing system until the pulse signal generating device generates a vector pulse soliton signal with a combination of 3 times of period and 43 times of period;
The computer-side pulse information processing system is also used for measuring the width of the electric pulse signal and measuring the RF frequency spectrum of the electric pulse signal.
And step S3, extracting the code information from the binary code according to the set code reading start-stop position, matching the content of the text information base corresponding to the code information in the text information base according to the threshold value and the code reading start-stop position, and finally outputting corresponding text information.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
The invention provides a real-time coding information storage system and a method based on a long-short period mixed pulse signal, which take vector pulse solitons combined by 3 times of periods and 43 times of periods as examples. The pulse signal generating device generates vector pulse solitons with 3 times of periods and 43 times of periods, namely generates vector pulse solitons signals with 3 times of periods and 43 times of periods; the method comprises the steps of identifying and analyzing periodical intensity modulation of soliton pulsation through a pulse signal processing system, setting different thresholds, performing binary coding processing after the system identifies the thresholds, matching coded information with information base content corresponding to the thresholds, and finally outputting corresponding text information. The invention has the characteristics of simple structure, low cost, clear flow, convenient operation and the like. Meanwhile, the pulse signal is only generated by the pulse transmitting device, and no external signal is required to be modulated.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a real-time encoding information storage system based on long-short period mixed pulse signals according to the present invention;
fig. 2 is a schematic flow chart of a method for storing real-time encoding information based on long-short period mixed pulse signals provided by the invention;
FIG. 3 is a schematic diagram of a pulse signal generator;
FIG. 4 is a schematic diagram of a computer-side pulse signal processing system display interface according to an embodiment;
FIG. 5 shows original signal data before encoding and encoded information converted according to different thresholds, which are obtained after a vector pulse soliton signal with a combination of 3 times period and 43 times period is processed by a pulse signal receiving, storing and processing system;
FIG. 6 is a schematic diagram of a computer-side pulse signal processing system display interface according to an embodiment;
Fig. 7 is a spectrum of a vector ripple soliton signal with a combination of 3 times period and 43 times period.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a real-time coding information storage system and method based on long-short period mixed pulse signals, which do not need external signals for modulation and have the advantages of simple flow steps and convenient operation.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. As shown in fig. 1, a real-time encoded information storage system based on a long-short period mixed pulse signal comprises a pulse signal generating device 1, a pulse signal receiving and storing system 2 and a pulse signal processing system 3.
The pulse signal generating device 1 is used for generating a vector pulse soliton signal with a period which is 3 times and a period which is 43 times combined, carrying out vector separation on the vector pulse soliton signal with the period which is 3 times and the period which is 43 times combined, distinguishing two vector pulse signals in mutually perpendicular directions, and transmitting the vector pulse signal in one perpendicular direction to the pulse signal receiving and storing system 2;
The pulse signal receiving and storing system 2 is used for receiving and storing vector pulse signals, converting the vector pulse signals into electric pulse signals, recording electric pulse signal data, including the cycle period and the pulse intensity amplitude of the electric pulse signals, and transmitting the obtained electric pulse signal data to the pulse signal processing system 3;
The pulse signal processing system 3 is used for analyzing the processed electric pulse signals, processing the periodicity of signal amplitude modulation into coded information according to different normalization processing rules, and then converting the coded information into text information.
The pulse signal generating device 1 includes: a laser diode pumping source 4, a wavelength division multiplexer 5, a gain fiber 6, a polarization independent isolator 7, and intracavity polarization controllers 8, 50:50 optical coupling out 9 and saturable absorber 10, extra-cavity polarization controller 11, polarizing beam splitter 12;
The laser diode pump source 4 and the input 5a of the wavelength division multiplexer, the output 5c of the wavelength division multiplexer 5, the gain fiber 6, the polarization independent isolator 7, the intra-cavity polarization controllers 8, 50:50 optical out-coupling inputs 9a, 50:50 the output end 9c of the optocoupler, the saturable absorber 10, the input end 5b of the wavelength division multiplexer are connected in sequence, 50: the output end 9b of the 50 optical coupling out-coupling device, the extracavity polarization controller 11, the polarization beam splitter input end 12a and the polarization beam splitter output end 12b are connected with the pulse signal receiving and storing system 2;
The wavelength division multiplexer 5 is used for converging optical carrier signals with different wavelengths together in a transmitting end multiplexer and coupling the optical carrier signals into the same optical fiber of an optical line for transmission.
The gain fiber 6 is an erbium-doped fiber that increases the gain of the fiber by doping with erbium. The optical fiber has wide application in the field of optical communication and can be used for realizing long-distance optical signal transmission.
The polarization-independent isolator 7 allows light to be transmitted in only one direction and isolates the returning light. The intracavity polarization controller 8 can act as a rotator mirror to adjust the vector soliton incidence 50: the angle of the 50 optical coupling-out device can also act as a phase delay device, and the phase difference of two orthogonal polarizations of the vector soliton can be effectively adjusted to compensate for extra birefringence modulation introduced by the extra-cavity single mode fiber. 50:50 the optocoupler 9 is capable of proportionally 50:50 are distributed to two optical fibers for transmission, and the strength of each output signal is equal. By combining the intra-cavity polarization controllers 8 and 50:50 optocoupler 9 is connected, two orthogonal polarization directions of vector solitons and 50:50 the horizontal and vertical axes of the optocoupler 9 coincide, the two polarization components of the vector soliton will be at 50:50 are reasonably separated under the action of the optical coupling-out device 9 and are respectively output from two output ends.
50:50 The vector pulse soliton output by the output end 9c of the optical coupling-out device returns to the cavity to form a closed loop, 50:50 out of the vector pulse soliton output cavity output by the output end 9b of the optical coupling-out device, 50: the 50 optocoupler 9 is used for splitting the beam energy, and the output soliton states are the same.
The three wave plates are respectively lambda/4, lambda/2 and lambda/4, the polarization direction, the polarization angle and the polarization intensity of light are respectively controlled by the intracavity polarization controller 8, accurate polarization control and output energy size control can be realized through fine adjustment, different soliton states can be obtained by rotating the wave plates at different angles, and the other two wave plates are adjusted according to the mode that one wave plate is rotated and the other two wave plates are not moved.
The extra-cavity polarization controller 11 is used to vary the intensity amplitude of the two-component pulse signal obtained by the polarizing beam splitter 12. The polarizing beam splitter 12 includes: a horizontal direction output end 12b and a vertical direction output end 12c. The vector pulse soliton signal with the combination of 3 times period and 43 times period is subjected to vector separation through the extra-cavity polarization controller 11 and the polarization beam splitter 12.
Solitons are ultra-short pulses of a special form, and are pulse-like traveling waves with unchanged shape, amplitude and speed in the propagation process.
The pulse signal generating device shown in fig. 3 belongs to a passive mode-locked fiber laser, the total length of the passive mode-locked fiber laser is 6.085m, the length of a single-mode fiber is L SMF = 5.686m, the length of a gain fiber is L EDF = 5.686m, the basic repetition frequency f is about 17.15MHz, a semiconductor laser with 980nm wavelength is used as a pumping source, the wavelength division multiplexer of the embodiment can combine two different wavelengths (980 nm and 1550 nm), and a saturable absorber adopts CNT-SA as a saturable absorber based on carbon nano tubes. The passive mode-locked fiber laser is essentially a dissipation system, the output ultrashort pulse belongs to dissipation solitons, and meanwhile, the optical pulse can circulate in the resonant cavity infinitely, so that self-organization and interaction processes of the dissipation solitons can be observed through a broadcast television detector and a digital oscilloscope. Typically, when the fiber laser is operating in a steady state, the dissipative solitons formed have a fixed pulse characteristic at any location within the cavity. In addition, the laser can also operate in a quasi-stable state and an unstable state, and the output pulse characteristics change after each transmission in the cavity, so that complex nonlinear dynamics are shown in the time domain. After the polarization controller 8 in the cavity is regulated, the amplitude, pulse width and energy of the dissipative solitons are periodically evolved along with the number of transmission turns in the cavity to form soliton pulsation, a pulse sequence output by the passive mode-locked fiber laser shows periodic intensity modulation on an oscilloscope, the modulation period of the single-period pulsation solitons is several times or even hundreds of times of the circulation time in the cavity, the evolution behaviors of two orthogonal polarization components can be synchronous or asynchronous, and different types of pulsation vector multiple-period solitons comprising single-period and double-period multiple-period solitons pulsation can be obtained in the passive mode-locked fiber laser by changing the polarization controller in the cavity, and the pulsation period of the double-period pulsation soliton output pulse is the combination of two different modulation periods.
The pulse signal reception memory processing system 2 includes: a photodetector, a digital oscilloscope;
the photoelectric detector is used for converting the received vector pulse signals into electric pulse signals and transmitting the electric pulse signals to the digital oscilloscope;
the digital oscilloscope is used for recording electric pulse signal data, including a cycle period and a pulse intensity amplitude, and transmitting the processed electric pulse signal data to the computer-side pulse signal processing system 3;
The computer-side pulse information processing system 3 is used for analyzing the processed electric pulse signal data in real time, and comprises measuring the width of the electric pulse signal and measuring the RF spectrum of the electric pulse signal, judging the number of soliton pulse periods, wherein the measuring the width of the electric pulse signal can be measured by a FR-103XL autocorrelation instrument of Femtochrome, and the RF spectrum can be measured by an RF spectrum analyzer (Rohde & Schwarz, FSU 50). The computer-side pulse information processing system 3 also encodes the obtained electric pulse signal data into 1 according to the set three thresholds, encodes the pulse intensity amplitude value which is greater than or equal to the threshold value into 0, obtains three binary encoded information, then matches the encoded information with a word information base corresponding to the threshold value, and outputs and displays the word information obtained by matching.
Fig. 2 is a flow chart of a method for storing real-time coding information based on long-short period mixed pulse signals, which is provided by the invention, as shown in fig. 2, and is suitable for the real-time coding information storage system based on long-short period mixed pulse signals, and comprises the following steps:
S201, generating a vector pulse soliton signal with a combination of 3 times period and 43 times period by the pulse signal generating device 1;
s201 specifically includes: the polarization controller 8 in the rotating cavity dynamically adjusts birefringence and polarization state in the laser cavity to cause polarization modulation and intensity modulation of solitons to generate vector pulse signals, the pulse signals receive and store electric pulse signal data recorded and output by the processing system 2, and the computer-side pulse information processing system 3 judges the number of soliton pulse periods until the pulse signal generating device 1 generates vector pulse soliton signals with the combination of 3 times of periods and 43 times of periods;
As shown in fig. 7, the spectral representation comprising a side peak spacing of 5.86MHz and 0.4MHz of the reference repetition frequency 17.15MHz and forty third, respectively, demonstrates that the vector pulse signal is a combination of short period pulses for 3 round-trip cavity periods and long period pulses for 43 round-trip cavity periods. .
S202, a pulse signal receiving, storing and processing system 2 is utilized to receive and store vector pulse signals, the vector pulse signals are converted into electric pulse signals, the cycle number and the pulse intensity amplitude of the electric pulse signals are read, and the electric pulse signals are transmitted to a computer-side pulse signal processing system 3;
s203, the computer-side pulse signal processing system 3 analyzes the processed electric pulse signals, encodes the obtained electric pulse signal data into 1 according to three set thresholds, encodes the pulse intensity amplitude greater than or equal to the threshold into 0, obtains three binary encoded information, then matches the encoded information with a word information base corresponding to the threshold, and matches the matched word information.
S204 specifically comprises:
The computer-side pulse information processing system 3 performs normalization processing on the processed pulse signals, an uncoded original signal data graph 21 is shown in fig. 4, the pulse intensity amplitude distribution of the electric pulse signals has periodicity, and 95%, 71% and 60% of the pulse intensity amplitude are selected as three intensity thresholds;
encoding the pulse intensity amplitude value which is larger than or equal to the threshold value into 1, encoding the pulse intensity amplitude value which is smaller than the threshold value into 0, setting according to different threshold values, and performing binary encoding processing after the system identifies the threshold value to obtain three binary encoding information shown as b, c and d in fig. 5, wherein the three binary encoding information respectively has different periodicity;
the coded information distributed in different periods can correspond to different text information, so that the coded information is matched with the text information library content corresponding to the threshold value, and finally the corresponding text information is output.
As a specific example, the english language of "optical" is Optics, as shown in fig. 4. Fig. 4 shows a display interface of a pulse signal processing system at a computer end, which comprises a position 15 and an end position 16 for selecting a pulse signal under a condition of meeting a threshold, a threshold setting value 17 displayed according to a percentage, a pulse signal number 18 meeting the threshold in data acquired by a digital oscilloscope, a selected data file 19, code data 20 obtained according to judgment of the threshold, an original signal data diagram 21 before coding, code data 22 obtained in a pulse period starting and ending range, a display 23 of corresponding character information with codes, a start button 24, an end button 25 and an operating status lamp 26.
In fig. 4, on the condition that the threshold value is 0.60 after normalization, after the system recognizes that the threshold value is 0.60, the pulse intensity amplitude reaches or exceeds 0.60, the pulse intensity amplitude is encoded to be 1, the pulse intensity amplitude is encoded to be 0 when the pulse intensity amplitude is smaller than 0.60, the 1 st pulse signal of binary encoding is selected to start to the 8 th pulse signal after processing, and the obtained encoded information is: 11111111, according to the threshold value and the corresponding w text information library content of the code reading start-stop position in the matched text information library, outputting the display text information as Optics. In addition, it is also shown that the binary coded information obtained when the threshold values in (f) in fig. 6 and (g) in fig. 6 are 71% and 95%, respectively, are "11011111" and "100100100". The corresponding text messages are "Hello", "ZAFU", respectively. If the code reading start and stop positions are set to other values, different code information is obtained. .
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present invention and the core ideas thereof; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (8)
1. The real-time coding information method of the long-short period mixed pulse signal is characterized by comprising the following steps of:
S1, generating a vector pulse soliton signal with a period which is 3 times and a period which is 43 times combined through a pulse signal generating device, carrying out vector separation on the vector pulse soliton signal with the period which is 3 times and the period which is 43 times combined, distinguishing two vector pulse signals in mutually perpendicular directions, and transmitting the vector pulse signal in one perpendicular direction to a pulse signal receiving and storing system;
s2, receiving and storing the vector pulse signals by using a pulse signal receiving and storing system, converting the vector pulse signals into electric pulse signals, recording electric pulse signal data comprising the cycle period and the pulse intensity amplitude of the electric pulse signals, and transmitting the obtained electric pulse signal data to a pulse signal processing system;
S3, the pulse signal processing system receives the processed electric pulse signal data, binary coding is carried out on the obtained pulse signal data according to a set threshold value, and then coding information is converted into text information;
the threshold value comprises 95%, 71%, 60% of the pulse intensity amplitude, the pulse intensity amplitude greater than or equal to the threshold value is encoded as 1, and the pulse intensity amplitude less than the threshold value is encoded as 0;
The pulse signal generating device is a passive mode locking fiber laser.
2. The method for encoding information in real time for long and short period mixed pulse signals according to claim 1, wherein,
Step S1 comprises the steps of adjusting an intracavity polarization controller in a pulse signal generating device to generate a vector pulse signal, receiving, storing and processing electric pulse signal data recorded and output by a processing system through the pulse signal, and judging the number of soliton pulse periods in the vector pulse signal by a computer-side pulse information processing system until the pulse signal generating device generates a vector pulse soliton signal with a period which is 3 times and a period which is 43 times combined;
The computer-side pulse information processing system is also used for measuring the width of the electric pulse signal and measuring the RF frequency spectrum of the electric pulse signal.
3. The method for encoding information in real time for long and short period mixed pulse signals according to claim 1, wherein,
And step S3, extracting the code information from the binary code according to the set code reading start-stop position, matching the content of the text information base corresponding to the code information in the text information base according to the threshold value and the code reading start-stop position, and finally outputting corresponding text information.
4. The method for encoding information in real time according to claim 1, wherein the pulse emitting device is a passive mode-locked fiber laser, and comprises a laser diode pump source (4), a wavelength division multiplexer (5), a gain fiber (6), a polarization independent isolator (7), and intracavity polarization controllers (8) and (50): 50 a light coupling-out device (9), a saturable absorber (10), an extra-cavity polarization controller (11), a polarization beam splitter (12);
The laser diode pumping source (4) and the input end (5 a) of the wavelength division multiplexer, the output end (5 c) of the wavelength division multiplexer, the gain fiber (6), the polarization independent isolator (7), the intracavity polarization controller (8) and the polarization controller (50): 50 optical out-coupling inputs (9 a), 50:50 the output end (9 c) of the optical coupling-out device, the saturable absorber (10) and the input end (5 b) of the wavelength division multiplexer are connected in sequence, 50: and the output end (9 c) of the 50 optical coupling out device, the extra-cavity polarization controller (11), the polarization beam splitter input end (12 a) and the polarization beam splitter output end (12 b) are connected with the pulse signal receiving and storing system.
5. A real-time encoded information storage system based on long and short period mixed pulse signals, comprising any one of claims 1 to 4: the pulse signal generating device, the pulse signal receiving and storing system and the pulse signal processing system;
The pulse signal generating device is used for generating vector pulse soliton signals with 3 times of cycles and 43 times of cycles, vector separation is carried out on the vector pulse soliton signals with 3 times of cycles and 43 times of cycles, two vector pulse signals in mutually perpendicular directions are distinguished, and the vector pulse signals in one perpendicular direction are transmitted to the pulse signal receiving and storing system;
The pulse signal receiving and storing system is used for receiving and storing the vector pulse signals, converting the vector pulse signals into electric pulse signals, recording electric pulse signal data, including the cycle period and the pulse intensity amplitude of the electric pulse signals, and transmitting the obtained electric pulse signal data to the pulse signal processing system;
The pulse signal processing system is used for receiving the processed electric pulse signal data, binary coding is carried out on the obtained pulse signal data according to a set threshold value, and then coded information is converted into character information;
The threshold value includes 95%, 71%, 60% of the pulse intensity amplitude, the pulse intensity amplitude greater than or equal to the threshold value is encoded as 1, and the pulse intensity amplitude less than the threshold value is encoded as 0.
6. The system for storing real-time encoded information of a long and short period mixed pulse signal according to claim 5, wherein said converting encoded information into text information comprises: and setting a code reading start-stop position, after the system identifies the start-stop position information, carrying out matching identification on the code information and a corresponding text information base under a corresponding threshold value, and finally outputting matched text information.
7. The system for storing real-time encoded information of a long and short period mixed pulse signal according to claim 5, wherein said system for storing and receiving pulse signals comprises: a photodetector, a digital oscilloscope; the photoelectric detector is used for converting the received optical pulse signals into electric pulse signals and transmitting the electric pulse signals to the digital oscilloscope; the digital oscilloscope is used for recording and storing the electric pulse signal data, including the cycle period and the pulse intensity amplitude of the electric pulse signal, and transmitting the electric pulse signal data to the computer-end pulse signal processing system.
8. The system for storing real-time encoded information of a long and short period mixed pulse signal according to claim 5, wherein said pulse signal processing system further comprises an autocorrelation instrument and an RF spectrum analyzer.
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