CN112332815A - High-speed random code generator based on doped gain optical fiber random laser - Google Patents
High-speed random code generator based on doped gain optical fiber random laser Download PDFInfo
- Publication number
- CN112332815A CN112332815A CN202011209603.4A CN202011209603A CN112332815A CN 112332815 A CN112332815 A CN 112332815A CN 202011209603 A CN202011209603 A CN 202011209603A CN 112332815 A CN112332815 A CN 112332815A
- Authority
- CN
- China
- Prior art keywords
- fiber
- doped
- code generator
- random code
- random
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 title abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 83
- 230000003287 optical effect Effects 0.000 claims abstract description 31
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 20
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 18
- 238000005086 pumping Methods 0.000 claims abstract description 16
- 239000004065 semiconductor Substances 0.000 claims abstract description 15
- 230000009471 action Effects 0.000 claims abstract description 3
- 238000005070 sampling Methods 0.000 claims description 6
- KWMNWMQPPKKDII-UHFFFAOYSA-N erbium ytterbium Chemical compound [Er].[Yb] KWMNWMQPPKKDII-UHFFFAOYSA-N 0.000 claims description 4
- 229910052775 Thulium Inorganic materials 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims description 3
- FRNOGLGSGLTDKL-UHFFFAOYSA-N thulium atom Chemical compound [Tm] FRNOGLGSGLTDKL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 2
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 claims description 2
- 230000000739 chaotic effect Effects 0.000 description 13
- 238000001514 detection method Methods 0.000 description 11
- 238000012545 processing Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- -1 rare earth ions Chemical class 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- 238000005311 autocorrelation function Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/84—Generating pulses having a predetermined statistical distribution of a parameter, e.g. random pulse generators
Landscapes
- Lasers (AREA)
Abstract
The invention discloses a high-speed random code generator based on a doped gain fiber random laser, which generates random laser optical signals through a beam combiner, a fiber grating, a rare earth doped active fiber, a passive single-mode fiber and a fiber isolator structure under the action of a semiconductor pumping source and transmits the random laser optical signals to a fiber splitter, wherein the fiber splitter divides light into a first optical signal and a second optical signal, and the first optical signal is converted into a first binary bit sequence through a first photoelectric detector and a first 8-bit ADC; the second optical signal is converted into a second binary bit sequence through the delayer, the second photoelectric detector and the second 8-bit ADC; and the first binary bit sequence and the second binary bit sequence are selected by the XOR operation unit and the least significant bit selection unit and then output binary true random code sequences. The invention aims to provide a high-speed random code generator based on a doped gain optical fiber random laser, which solves the problems of higher system complexity and higher cost of the conventional high-speed random code generator.
Description
Technical Field
The invention relates to the technical field of optical communication, in particular to a high-speed random code generator based on a doped gain optical fiber random laser.
Background
Random codes play an important role in scientific research and daily life, and high-speed true random code generators based on physical sources are widely applied to the fields of cryptography, secret communication, calculation experiments and the like. True random codes can be generated based on different physical sources, including chaotic laser systems, circuit thermal noise, spontaneous radiation sources, single photon sources, raman scattering, and the like. The quantum random code generator based on quantum measurement uncertainty can generate true random codes, but is limited by the bandwidth of a quantum source or a single photon detector, and the random code generation rate is generally lower than 1 Gbp.
At present, an external cavity semiconductor chaotic laser is a mainstream light source for generating ultra-high-speed true random codes. Patent numbers: the name of CN101621287A is: a true random code generating device based on chaotic laser and a generating method thereof disclose a true random code generating device based on chaotic laser, wherein, a chaotic laser generator is a semiconductor laser or a fiber laser. However, since the external cavity semiconductor laser and the conventional resonant cavity fiber laser have a fixed length of cavity length in design, the autocorrelation function of the output time domain intensity still has a time delay characteristic corresponding to the cavity length, and the time delay characteristic needs to be suppressed through a special structural design or algorithm processing to ensure true randomness of the output random code. In addition, in order to obtain a higher bandwidth chaotic source, two or more external cavity semiconductor chaotic lasers need to be coupled with each other, thereby increasing the complexity and cost of the system. The random laser without a fixed resonant cavity can also be used as a chaotic light source of a random code generator, however, the random code generator system based on random laser disclosed in the current literature adopts a structure of a narrow-linewidth random laser light source and one-bit ADC sampling, and cannot realize high-speed random codes above dozens of Gb/s, so that the actual requirements cannot be met.
Disclosure of Invention
The invention aims to provide a high-speed random code generator based on a doped gain optical fiber random laser, which not only can solve the problems of higher system complexity and higher cost of the conventional high-speed random code generator, but also can realize high-speed random codes of hundreds of Gpbs through a simple structure.
The invention is realized by the following technical scheme:
the high-speed random code generator based on the doped gain fiber random laser comprises a semiconductor pumping source, a pumping beam combiner, a fiber grating, a rare earth doped active fiber, a passive single-mode fiber, a fiber isolator, a fiber splitter, a delayer, a first photoelectric detector, a second photoelectric detector, a first 8-bit ADC, a second 8-bit ADC, an XOR operation unit and a least significant bit selection unit;
pumping light emitted by the semiconductor pumping source is injected into the rare earth doped active optical fiber through the pumping beam combiner, the pumping light generates random laser optical signals under the action of the fiber grating, the rare earth doped active optical fiber, the passive single-mode optical fiber and the optical fiber isolator and is transmitted to the optical fiber splitter, the optical fiber splitter divides the random laser optical signals into a first optical signal and a second optical signal, the first optical signal is detected by the first photoelectric detector and then outputs a first electric signal, and the first electric signal is input to the first 8-bit ADC and is converted into a first binary bit sequence by the first 8-bit ADC; the second optical signal is delayed by the delayer and detected by the second photoelectric detector, and then a second voltage signal is output, and the second voltage signal is input to the second 8-bit ADC and is converted into a second binary bit sequence by the second 8-bit ADC; and the first binary bit sequence and the second binary bit sequence are processed by the XOR operation unit and then output a third binary bit sequence, and the third binary bit sequence is selected by the least significant bit selection unit and then output a binary true random code sequence.
Preferably, the rare earth doped active optical fiber is an ytterbium doped optical fiber, an erbium ytterbium co-doped optical fiber or a thulium doped optical fiber.
Preferably, the passive single mode optical fibre is characterised by a length of not less than 1 Km.
Preferably, the bandwidth of the fiber grating is: 0.1nm-1 nm.
Preferably, the sampling rates of the first 8-bit ADC and the second 8-bit ADC are both greater than 40 GS/s.
Preferably, the bandwidths of the first 8-bit ADC and the second 8-bit ADC are both greater than 20 GHz.
Preferably, the bandwidths of the first and second photodetectors are both greater than 20 GHz.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the invention, through a doped gain random fiber laser light source module, a detection module and a data processing module, by utilizing the advantages of no time delay characteristic of an output laser time domain intensity autocorrelation curve and very wide output laser chaotic bandwidth of the doped gain random fiber laser, two paths of delay detection are combined, and a high-speed random code generator of hundreds of Gbps is constructed through XOR operation and least significant bit selection after multi-bit sampling. Compared with the random code generator of the commonly used external cavity semiconductor chaotic laser, the random code generator has the advantages that the complexity and the cost of a system are further reduced while the high-performance random code output is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a diagram of a high-speed random code generator of a doped gain random distribution Rayleigh feedback fiber laser according to the present invention;
FIG. 2 is a typical graph of output spectrum and time domain of an Yb-doped gain random distribution Rayleigh feedback fiber laser according to the present invention;
FIG. 3 is a graph of the autocorrelation of the present invention producing 200Gbps random code;
reference numbers and corresponding part names in the drawings:
1. a semiconductor pump source; 2. a pump combiner; 3. a fiber grating; 4. a rare earth doped active optical fiber; 5. a passive single mode optical fiber; 6. a fiber isolator; 7. an optical fiber splitter; 8. a time delay; 9. a first photodetector; 10. a second photodetector; 11. a first 8-bit ADC; 12. a second 8-bit ADC; 13. an exclusive OR operation unit; 14. and selecting a unit from the least significant bit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
A high-speed random code generator based on a doped gain fiber random laser, as shown in fig. 1, includes a laser module, a fiber splitter 7, a detection module and a data processing module, which are connected in sequence, wherein an optical signal output by the laser module is split by the fiber splitter 7 to obtain a first optical signal and a second optical signal, and the first optical signal and the second optical signal are respectively detected by the detection module and then input to the data processing module, so as to generate a high-speed binary true random code sequence.
In the scheme, the laser module comprises a semiconductor pumping source 1, a pumping beam combiner 2, a fiber grating 3, a rare earth doped active fiber 4, a passive single-mode fiber 5 and a fiber isolator 6; the rare earth doped active fiber 4 is used for providing gain, when pump light emitted by the semiconductor pump source 1 is transmitted to the rare earth doped active fiber 4, rare earth ions in the rare earth doped active fiber 4 absorb the pump light, electrons of the rare earth ions are excited to a higher excitation energy level, ion number inversion is achieved, particles after inversion are transferred to a ground state from a high energy level in a radiation mode, are reflected back and forth in a semi-open cavity structure constructed by the fiber grating 3 and the passive single-mode fiber 5, and are finally output through the fiber isolator 6.
In order to enable the passive single-mode fiber 5 to provide enough random Rayleigh scattering feedback for the random laser optical signal, the length of the passive single-mode fiber 5 is not less than 1 km; meanwhile, in order to enable the laser module to generate a broadband random fiber laser light source with dozens of GHz, the bandwidth of the fiber grating 3 is in the range of 0.1nm-1 nm.
It should be noted that the rare-earth doped active fiber 4 may be one of an ytterbium-doped fiber, an erbium-ytterbium co-doped fiber, and a thulium-doped fiber, and when the rare-earth doped active fiber 4 is the ytterbium-doped fiber, the output wavelength of the laser module is 1 μm; when the rare earth doped active fiber 4 is erbium ytterbium co-doped fiber, the output wavelength of the laser module is 1.5 μm; when the rare earth doped active optical fiber 4 is a thulium doped optical fiber, the output wavelength of the laser module is 2 μm.
Because the laser module provided by the scheme has no characteristic of a fixed resonant cavity, the output frequency spectrum of the laser module has no longitudinal mode structure with fixed intervals, and the time delay characteristic of the laser module does not need to be inhibited through special structural design or algorithm processing; meanwhile, compared with the prior art, in order to obtain a chaotic source with higher bandwidth, a method for mutually coupling two or more external cavity semiconductor chaotic lasers is needed, the spectral bandwidth of the random laser optical signal output by the laser module can be adjusted only by adjusting the width range of the fiber bragg grating 3, and the complexity and the cost of the system are greatly reduced.
The detection module comprises a first detection branch and a second detection branch, wherein the first detection branch comprises a first photodetector 9 and a first 8-bit ADC 11; the second detection branch comprises a delay 8, a second photodetector 10 and a second 8-bit ADC 12.
When the random laser optical signal output by the laser module is split by the optical fiber splitter 7, a first optical signal and a second optical signal are obtained, the first optical signal is input to the first detection branch, and the second optical signal is input to the second detection branch. The processing process of the first branch circuit on the first optical signal is as follows: the first optical signal is received and detected by the first photodetector 9, and then a corresponding first electrical signal is output, and the first electrical signal is transmitted to the first 8-bit ADC11 and is converted into a first binary bit sequence by the first 8-bit ADC 11; the processing process of the second branch circuit to the second optical signal is as follows: the second optical signal is delayed by the delay unit 8 and then transmitted to the second photodetector 10, the second photodetector 10 receives and detects the second optical signal and then outputs a corresponding second electrical signal, and the second electrical signal is transmitted to the second 8-bit ADC12 and converted into a second binary bit sequence by the second 8-bit ADC 12.
The data processing module comprises an exclusive-or operation unit 13 and a least significant bit selection unit 14, wherein the exclusive-or operation unit 13 performs exclusive-or processing on a first binary bit sequence output by the first photoelectric detector 9 and a second binary bit sequence output by the second photoelectric detector 10 to obtain a third binary bit sequence; the third binary bit sequence is transmitted to the least significant bit selection unit 14, and the least significant bit selection unit 14 performs the least significant bit reserving operation on the third binary bit sequence, and finally outputs the binary true random code sequence.
Further, in order to increase the rate of generating the random code, the bandwidths of the first photodetector 9, the second photodetector 10, the first 8-bit ADC11 and the second 8-bit ADC12 are greater than 20GHz, and the sampling rates of the first 8-bit ADC11 and the second 8-bit ADC12 are greater than 40 GS/s.
The present solution is further illustrated by a specific example below:
in this embodiment, a semi-open cavity structure of the ytterbium-doped random fiber laser is constructed by using a ytterbium-doped fiber with a length of 10m and a passive single-mode fiber 5 with a length of 5km, and the fiber grating 3 has a center wavelength of 1063.6nm and a bandwidth of 0.2 nm. The power of the semiconductor pumping source 1 is adjusted to enable the output ytterbium-doped random fiber laser to work in a quasi-continuous light output state, as shown in fig. 2, the spectrum of the ytterbium-doped random fiber laser output by the ytterbium-doped random fiber laser is smooth and stable, and the spectral bandwidth is 0.35nm, so that the chaotic bandwidth larger than 90GHz can be supported. In addition, since the output time domain of the ytterbium-doped random fiber laser is quasi-continuous light output in the present embodiment, and the time domain intensity has the characteristic of random fluctuation, the ytterbium-doped random fiber laser in the present embodiment is suitable for being used as a generation light source of a high-speed random code generator.
In addition, in this embodiment, the bandwidths of the first photodetector 9 and the second photodetector 10 are both 20GHz, the sampling rates of the first 8-bit ADC11 and the second 8-bit ADC12 are both 40GS/s, the time delay brought by the time delay 8 is 2.5ns, and the least significant bit selection unit 14 retains 5 bits. After the third binary bit sequence is processed by the data processing module, the final output rate is a binary true random code sequence with 5bit × 40GS/s being 200Gb/s, as shown in fig. 3, the generated random code sequence with 200Gb/s has no correlation peak with time delay characteristics, which indicates that the generated random code sequence has excellent randomness.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The high-speed random code generator based on the doped gain fiber random laser is characterized by comprising a semiconductor pumping source (1), a pumping beam combiner (2), a fiber grating (3), a rare earth doped active fiber (4), a passive single-mode fiber (5), a fiber isolator (6), a fiber splitter (7), a delayer (8), a first photoelectric detector (9), a second photoelectric detector (10), a first 8-bit ADC (11), a second 8-bit ADC (12), an exclusive OR operation unit (13) and a least significant bit selection unit (14);
the pumping light emitted by the semiconductor pumping source (1) is injected into the rare earth doped active fiber (4) through the pumping beam combiner (2), the pumping light generates a random laser light signal under the action of the fiber grating (3), the rare earth doped active fiber (4), the passive single-mode fiber (5) and the fiber isolator (6) and is transmitted to the fiber splitter (7), the fiber splitter (7) splits the random laser light signal into a first light signal and a second light signal, the first light signal is detected by the first photodetector (9) and then outputs a first electric signal, and the first electric signal is input to the first 8-bit ADC (11) and is converted into a first binary bit sequence by the first 8-bit ADC (11); the second optical signal is delayed by the delayer (8) and detected by the second photoelectric detector (10) to output a second voltage signal, and the second voltage signal is input to the second 8-bit ADC (12) and converted into a second binary bit sequence by the second 8-bit ADC (12); and the first binary bit sequence and the second binary bit sequence are processed by the XOR operation unit (13) and then output a third binary bit sequence, and the third binary bit sequence is selected by the least significant bit selection unit (14) and then output a binary true random code sequence.
2. The doped gain fiber random laser based high speed random code generator according to claim 1, wherein the rare earth doped active fiber (4) is ytterbium doped fiber, erbium ytterbium co-doped fiber or thulium doped fiber.
3. High-speed random code generator based on doped gain fiber random lasers according to claim 1, characterized in that the length of the passive single-mode fiber (5) is not less than 1 km.
4. The high-speed random code generator based on doped gain fiber random laser according to claim 1, characterized in that the bandwidth of the fiber grating (3) is: 0.1nm-1 nm.
5. The high-speed random code generator based on doped gain fiber random laser according to any of claims 1 to 4, characterized in that the sampling rate of the first 8-bit ADC (11) and the second 8-bit ADC (12) are both larger than 40 GS/s.
6. The doped gain fiber random laser based high speed random code generator according to claim 5, wherein the bandwidths of the first 8-bit ADC (11) and the second 8-bit ADC (12) are each greater than 20 GHz.
7. The high-speed random code generator based on doped gain fiber random laser according to claim 6, characterized in that the bandwidths of the first photodetector (9) and the second photodetector (10) are both larger than 20 GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011209603.4A CN112332815B (en) | 2020-11-03 | 2020-11-03 | High-speed random code generator based on doped gain fiber random laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011209603.4A CN112332815B (en) | 2020-11-03 | 2020-11-03 | High-speed random code generator based on doped gain fiber random laser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112332815A true CN112332815A (en) | 2021-02-05 |
| CN112332815B CN112332815B (en) | 2024-04-02 |
Family
ID=74322969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011209603.4A Active CN112332815B (en) | 2020-11-03 | 2020-11-03 | High-speed random code generator based on doped gain fiber random laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112332815B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621287A (en) * | 2009-08-10 | 2010-01-06 | 太原理工大学 | Real random code generating device based on chaos laser and generating method thereof |
| CN101969172A (en) * | 2010-08-24 | 2011-02-09 | 浙江大学 | Yb-doped fiber laser based on pulse laser seeds in gain modulation technology |
| CN102185243A (en) * | 2009-12-11 | 2011-09-14 | 苏州大学 | Mode-locked all-fiber laser with all-normal-dispersion cavity |
| CN102681816A (en) * | 2012-05-22 | 2012-09-19 | 太原理工大学 | All-optical true random number generator |
| US20120314867A1 (en) * | 2010-02-15 | 2012-12-13 | Tatsuya Tomaru | Encrypted communication system, transmitter and receiver using same |
| CN103427801A (en) * | 2013-08-30 | 2013-12-04 | 太原理工大学 | Method and device for generating true random code on basis of backward rayleigh scattering |
| CN104316090A (en) * | 2014-11-14 | 2015-01-28 | 山东大学 | Temperature self-compensation high-resolution high-frequency demodulation system and method for fiber bragg grating |
| CN105959094A (en) * | 2016-04-27 | 2016-09-21 | 太原理工大学 | Down-sampling multi-bit true random password optical generation device |
| CN106961066A (en) * | 2017-05-17 | 2017-07-18 | 河北大学 | A kind of multi-wavelength random fiber laser of partly beginning to speak based on overlapping fiber grating |
| CN206451972U (en) * | 2016-10-25 | 2017-08-29 | 中国工程物理研究院激光聚变研究中心 | One kind mixes ytterbium random fiber laser |
| CN108493748A (en) * | 2018-04-03 | 2018-09-04 | 电子科技大学 | Ytterbium-Raman hybrid gain random fiber laser is mixed based on fibre core pumping |
| US20180366897A1 (en) * | 2018-07-09 | 2018-12-20 | University Of Electronic Science And Technology Of China | Random distributed Rayleigh feedback fiber laser based on double-cladding weakly ytterbium-doped fiber |
| CN109687276A (en) * | 2019-01-20 | 2019-04-26 | 北京工业大学 | The gain switch laser of thulium-doped fiber laser pumping |
| CN109743114A (en) * | 2019-01-11 | 2019-05-10 | 太原理工大学 | A kind of two-way multichannel chaotic laser light communication system and communication means |
| CN109802721A (en) * | 2019-01-18 | 2019-05-24 | 太原理工大学 | OTDR device and measurement method based on physical accidental code correlation detection |
| CN109830888A (en) * | 2019-01-24 | 2019-05-31 | 西南大学 | One kind generating physical random number device based on silicon substrate microcavity chaos |
| CN110299663A (en) * | 2019-07-29 | 2019-10-01 | 华中科技大学鄂州工业技术研究院 | All -fiber dual wavelength pumps thulium-doped fiber laser |
-
2020
- 2020-11-03 CN CN202011209603.4A patent/CN112332815B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621287A (en) * | 2009-08-10 | 2010-01-06 | 太原理工大学 | Real random code generating device based on chaos laser and generating method thereof |
| CN102185243A (en) * | 2009-12-11 | 2011-09-14 | 苏州大学 | Mode-locked all-fiber laser with all-normal-dispersion cavity |
| US20120314867A1 (en) * | 2010-02-15 | 2012-12-13 | Tatsuya Tomaru | Encrypted communication system, transmitter and receiver using same |
| CN101969172A (en) * | 2010-08-24 | 2011-02-09 | 浙江大学 | Yb-doped fiber laser based on pulse laser seeds in gain modulation technology |
| CN102681816A (en) * | 2012-05-22 | 2012-09-19 | 太原理工大学 | All-optical true random number generator |
| CN103427801A (en) * | 2013-08-30 | 2013-12-04 | 太原理工大学 | Method and device for generating true random code on basis of backward rayleigh scattering |
| CN104316090A (en) * | 2014-11-14 | 2015-01-28 | 山东大学 | Temperature self-compensation high-resolution high-frequency demodulation system and method for fiber bragg grating |
| CN105959094A (en) * | 2016-04-27 | 2016-09-21 | 太原理工大学 | Down-sampling multi-bit true random password optical generation device |
| CN206451972U (en) * | 2016-10-25 | 2017-08-29 | 中国工程物理研究院激光聚变研究中心 | One kind mixes ytterbium random fiber laser |
| CN106961066A (en) * | 2017-05-17 | 2017-07-18 | 河北大学 | A kind of multi-wavelength random fiber laser of partly beginning to speak based on overlapping fiber grating |
| CN108493748A (en) * | 2018-04-03 | 2018-09-04 | 电子科技大学 | Ytterbium-Raman hybrid gain random fiber laser is mixed based on fibre core pumping |
| US20180366897A1 (en) * | 2018-07-09 | 2018-12-20 | University Of Electronic Science And Technology Of China | Random distributed Rayleigh feedback fiber laser based on double-cladding weakly ytterbium-doped fiber |
| CN109743114A (en) * | 2019-01-11 | 2019-05-10 | 太原理工大学 | A kind of two-way multichannel chaotic laser light communication system and communication means |
| CN109802721A (en) * | 2019-01-18 | 2019-05-24 | 太原理工大学 | OTDR device and measurement method based on physical accidental code correlation detection |
| CN109687276A (en) * | 2019-01-20 | 2019-04-26 | 北京工业大学 | The gain switch laser of thulium-doped fiber laser pumping |
| CN109830888A (en) * | 2019-01-24 | 2019-05-31 | 西南大学 | One kind generating physical random number device based on silicon substrate microcavity chaos |
| CN110299663A (en) * | 2019-07-29 | 2019-10-01 | 华中科技大学鄂州工业技术研究院 | All -fiber dual wavelength pumps thulium-doped fiber laser |
Non-Patent Citations (1)
| Title |
|---|
| MENGQIU FAN: "《Comprehensive Investigations on 1053 nm Random Distributed Feedback Fiber Laser》", 《IEEE PHOTONICS JOURNAL》, vol. 9, no. 2, pages 1 - 10 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112332815B (en) | 2024-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6945539B2 (en) | Methods for Quantum Random Number Generation in Multimode Laser Cavities | |
| Dong et al. | Wide pulse-repetition-rate range tunable nanotube $ Q $-switched low threshold erbium-doped fiber laser | |
| CN111541138B (en) | Device for inhibiting stimulated Brillouin scattering in high-power narrow-linewidth optical fiber laser | |
| Huang et al. | Cascaded random fiber laser based on hybrid Brillouin-erbium fiber gains | |
| CN103825169A (en) | Fiber laser based on doped fiber random phase shift raster | |
| Wu et al. | Ultra-high speed random bit generation based on Rayleigh feedback assisted ytterbium-doped random fiber laser | |
| CN105390913B (en) | Auxiliary chamber pumps erbium-ytterbium co-doped fiber amplifier | |
| Huang et al. | One-stage erbium ASE source with 80nm bandwidth and low ripples | |
| CN106711747B (en) | Composite cavity structure optical fiber oscillator based on same-band pumping technology | |
| CN112332815B (en) | High-speed random code generator based on doped gain fiber random laser | |
| Kumar et al. | A novel flattened gain C-band cascaded hybrid optical Raman and thulium-doped fluoride fiber amplifier for super dense wavelength division multiplexing system | |
| TWI344736B (en) | Optical amplifier | |
| Huang et al. | Pulsed-pumped optical fiber amplifier | |
| Choudhury | Introductory chapter: a revisit to optical amplifiers | |
| Xia et al. | Self-seeded multiwavelength Brillouin-erbium laser using NOLM-NALM | |
| Zhao et al. | Linewidth narrowing and polarization control of erbium-doped fiber laser by self-injection locking | |
| Zhang et al. | High-efficiency Brillouin-Erbium Random Fiber Laser via Distributed Random Feedback from a Weak FBG Array | |
| Babar et al. | Mode-locked thulium ytterbium co-doped fiber laser with graphene saturable absorber | |
| Pandey et al. | Random bit generation from optical chaos in symmetric erbium-doped fiber ring laser | |
| Li et al. | Relative intensity noise suppression based on saturabale gain in the erbium doped fiber amplifier | |
| Goel et al. | Design of broadband EDFA next generation optical network | |
| Shen et al. | Suppression of self-pulsing in high power Tm3+-doped fiber laser | |
| Hang | Research Progress and Development Trend of L+ Band Fiber Amplifier (1600-1650nm) | |
| Ding et al. | Method to improve the ring-cavity EDFL SNR | |
| Zhang et al. | Gain-flattened thulium doped fiber amplifier incorporating dual-stage pumping |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |