CN108649413A - Optical-electronic oscillator based on parity-time symmetry principle - Google Patents
Optical-electronic oscillator based on parity-time symmetry principle Download PDFInfo
- Publication number
- CN108649413A CN108649413A CN201810460566.0A CN201810460566A CN108649413A CN 108649413 A CN108649413 A CN 108649413A CN 201810460566 A CN201810460566 A CN 201810460566A CN 108649413 A CN108649413 A CN 108649413A
- Authority
- CN
- China
- Prior art keywords
- output end
- ports
- beam splitter
- connect
- input terminal
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S1/00—Masers, i.e. devices using stimulated emission of electromagnetic radiation in the microwave range
- H01S1/02—Masers, i.e. devices using stimulated emission of electromagnetic radiation in the microwave range solid
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
A kind of optical-electronic oscillator of parity time symmetry principle, including：Laser and Polarization Controller connected to it；The long optical fibers, EDFA Erbium-Doped Fiber Amplifier and beam splitter for storing energy that dual-polarization Mach increases Dare modulator and sequentially connect with it；The beam splitter is divided into two-way, is sequentially connected with adjustable optical delay line, the first photodetector, the first electric amplifier and the first electrical power beam splitter all the way；Another way is sequentially connected with, adjustable optical attenuator, the second photodetector, the second electric amplifier and the second electrical power beam splitter.The present invention can provide the outstanding novel high-quality microwave signal source that stable noiselike signal can be exported in the form of light, two kinds of electricity.
Description
Technical field
The invention belongs to optoelectronic areas, more particularly to a kind of optical-electronic oscillator based on parity-time symmetry principle.
Background technology
Parity-time is symmetrically the extension of classic quantum theory.In quantized system, the condition of Hermitian conjugate is changed into reduction
More physics parity-time symmetric condition after, even if the multiple non-Hermitian conjugate of Hamiltonian of a major class turns in symmetry status
Complete real spectrum can also be possessed by becoming under threshold value.When meeting its symmetrically broken full condition, specific resonant cavity will produce centainly
Modeling mechanism.And optical-electronic oscillator is taken as photoelectric feedback loop technology, and laser energy is converted to microwave signal energy,
It breaks away from traditional microwave oscillator and increases phase with frequency and make an uproar the limitation that performance can reduce, can be exported and be stablized in the form of light, two kinds of electricity
Noiselike signal novel high-quality microwave signal source, the high performance filtering of modeling mechanism heavy dependence in resonant cavity
Device.Therefore modeling mechanism of the novel, easy-operating parity-time balanced system under broken scarce state is utilized to vibrate Traditional photovoltaic
Device is transformed important researching value and application value.
Invention content
In view of above-mentioned technical background, in order to overcome existing technical deficiency, it is symmetrically former that the present invention provides a kind of parity-time
The optical-electronic oscillator of reason.
The present invention provides a kind of optical-electronic oscillator of parity-time symmetry principle, including：
One laser is λ for generation wavelength0Laser；And
The output end of one Polarization Controller, input terminal and semiconductor laser connects, for what is chatted behind control output end
Modulator light polarization state；And
One dual-polarization Mach increases Dare modulator, the output end connection of input terminal and polarization rotator；
One long optical fibers for storing energy, the output end that input terminal increases Dare modulator with dual-polarization Mach are connect；
The output end of one EDFA Erbium-Doped Fiber Amplifier, input terminal and long optical fibers connects；
The output end of one beam splitter, 1 port and EDFA Erbium-Doped Fiber Amplifier connects；
One adjustable optical delay line, the delay for adjusting two ring cavities is consistent, and input terminal is connect with 2 port of score device；
One first photodetector, for detecting optical signal, input terminal is connect with adjustable optical delay line output end；
One first electric amplifier, for making in loop photosignal gain is more than loss to be able to starting of oscillation, input terminal with
The output end of first photodetector connects；
One first electrical power beam splitter, 1 port are connect with the output end of the first electric amplifier, and 3 ports export for signal
Port；
One adjustable optical attenuator, for the loss in circuit where adjusting the device, control and the net gain in another circuit
Relationship, 3 ports of input terminal and beam splitter connect；
The output end of one second photodetector, input terminal and adjustable optical attenuator connects；
One second electric amplifier, output end are connect with the output end of the second photodetector；
One second electrical power beam splitter, input terminal are connect with the output end of the second electric amplifier 16.
It can be seen from the above technical proposal that the present invention at least has the advantages that：
1, the optical-electronic oscillator based on parity-time symmetrical novel modeling mechanism for not depending on high performance filter, passes through
Regulating loop gain and loss intensity realize that symmetry breaking carries out modeling, and adjusting method is simple, and single mode and multimode may be implemented
Switching between output.
2, the outstanding novel high-quality microwave signal that stable noiselike signal can be exported in the form of light, two kinds of electricity is provided
Source.
Description of the drawings
For the technology contents further illustrated the present invention, with reference to embodiments and attached drawing is described in detail as after, wherein：
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the experiment test figure under the structure different condition.
Specific implementation mode
Certain embodiments of the invention will be done with reference to appended attached drawing in rear and more comprehensively describe to property, some of but not complete
The embodiment in portion will be shown.In fact, various embodiments of the present invention can be realized in many different forms, and should not be construed
To be limited to this several illustrated embodiment；Relatively, these embodiments are provided so that the present invention meets applicable legal requirement.
The present invention, which provides, a kind of being based on parity-time symmetrical novel photoelectric oscillation device comprising reactive filter it is more
The bicyclic optical-electronic oscillator of mould isotype interval starting of oscillation, for providing exportable multimode optoelectronic oscillation signal；Simultaneously in the dress
Set in two photoelectric loops of system increase gain and be lost intensity regulating device, based on in two loops gain and damage
The adjusting for consuming intensity, realizes the adjusting of parity-time in the bicyclic optical-electronic oscillator symmetrical various phase representations, and
The selection of single-mode is realized under parity-time symmetry breaking state.
Refering to Figure 1, the present invention provides the optical-electronic oscillator of kind parity-time symmetry principle, including：
One laser 1, for the laser that generation wavelength is λ 0；And
One Polarization Controller 2, input terminal are connect with the output end of semiconductor laser 1, are used for the tune of control output end
The polarization state of the light of device 7 processed；And
One dual-polarization Mach increases Dare modulator 7, and vertical emergent light is polarized for modulating two-way, input terminal with partially
Shake circulator 2 output end connection；
One long optical fibers 8 for storing energy, the output end that input terminal increases Dare modulator 7 with dual-polarization Mach connect
It connects；
One EDFA Erbium-Doped Fiber Amplifier 9, for provides can oscillator starting of oscillation enough energy, input terminal and long optical fibers 8
Output end connection；
One beam splitter, 10,1 port is connect with the output end of EDFA Erbium-Doped Fiber Amplifier 9, and 2,3 ports are exit ports,
Energy in part；
One adjustable optical delay line 11, the delay for adjusting two ring cavities is consistent, eliminates bicyclic cursor effect, input terminal
It is connect with 2 port of score device；
One first photodetector 13, for detecting optical signal, input terminal is connect with 11 output end of adjustable optical delay line；
One first electric amplifier 15, for making in loop electrical signal gain is more than loss to be able to starting of oscillation, input terminal with
The output end of first photodetector 13 connects；
One first electrical power beam splitter, 17,1 port is connect with the output end of the first electric amplifier 15；
One adjustable optical attenuator 12, for the loss in circuit where adjusting the device, control and having a net increase of in another circuit
The relationship of benefit, input terminal are connect with 2 port of beam splitter；
One second photodetector 14, input terminal are connect with the output end of adjustable optical attenuator 12；
One second electric amplifier 16, for making in loop electrical signal gain is more than loss to be able to starting of oscillation, output end with
The output end of second photodetector 14 connects；
One second electrical power beam splitter 18, input port 1 are connect with the output end of the second electric amplifier 16.
Wherein, dual-polarization Mach, which increases inside Dare modulator 7, includes：
One beam splitter, 19,1 port is connected with the output end of Polarization Controller 2；
One first intensity modulator, 3,1 port is connected with 2 ports of beam splitter 19,3 ports and electrical power beam splitter
17 2 ports connection, 3 ports are signal output port；
One second intensity modulator, 4,1 port is connected with 3 ports of beam splitter 19,3 ports and electrical power beam splitter
18 2 ports connection；
One polarizer 5, input terminal are connect with 2 ports of the second intensity modulator 4；
One polarization beam combiner, 6,1 port is connected with the output end of deception device 5, and the 2 of 2 ports and the first intensity modulator 3
Port connects, and 3 ports are the output end that dual-polarization Mach increases Dare modulator 7.
The length of the long optical fibers 8 of the wherein described storage energy is 30 meters~8000 meters.
Wherein the laser 1 is semiconductor laser or Distributed Feedback Laser.
Wherein the first electric amplifier 15 and the first electrical power beam splitter 17 are not limited to current link position, can be first
Any position connects between the output end of photodetector 13 and 3 ports of the first intensity modulator 3；
Second electric amplifier 16 and the second electrical power beam splitter 18 are not limited to current link position, can be in the second photoelectricity
Any position connects between the output end of detector 16 and 3 ports of the second intensity modulator 3.
Wherein dual-polarization Mach increases Dare modulator 7, is not limited to increase Dare modulator 7 using dual-polarization Mach, can be with
Reached using other types modulator and increases Dare modulator same effect with dual-polarization Mach.
Fig. 2 be the embodiment of the present invention adjust gain and be lost intensity regulating device after test realization it is each parity-when
Between symmetrical out of phase.
In the present embodiment, after adjusting gain and the regulating device of intensity be lost, if loop above is made to open a way, gain
Enough starting of oscillations, then by the oscillation effect for the monocycle multimode starting of oscillation for obtaining similar Fig. 2A.It is adjusting gain and the tune of intensity is lost
After regulating device, if all enough starting of oscillations of two loop gains, the oscillation for the bicyclic multimode starting of oscillation for obtaining similar Fig. 2 B is imitated
Fruit.After adjusting gain and the regulating device of intensity is lost, if two loop gains and loss meet upper loop loss intensity
Equal to lower loop gain, then by the single-frequency output form for the parity-time symmetry breaking for obtaining similar Fig. 2 C, under the situation i.e.
A kind of optical-electronic oscillator based on parity-time symmetry principle is realized, when fiber lengths are 3200m length, phase noise
Down to -139dBc/Hz.Single mode signal shown in the figure, side mode suppression ratio have been more than 55dB.If two loop gains and damage
Consumption meets upper loop loss and is more than lower loop gain, then by the form of similar Fig. 2 D is obtained, that is, restores upper loop not starting of oscillation, under
The monocycle multimode of loop starting of oscillation shakes state.
The modeling application based on parity-time symmetry principle in optical-electronic oscillator referred in the present invention, however it is not limited to
Above-mentioned optical-electronic oscillator can be applied in all similar optoelectronic oscillation systems, be not limited to use EDFA Erbium-Doped Fiber Amplifier
Deng the gain mode for introducing circuit.
The modeling application based on parity-time symmetry principle in optical-electronic oscillator mentioned in the present invention, and it is unlimited
In above-mentioned fibre system, while can be applied in corresponding integrated optoelectronic systems according to same principle.
It should be noted that in attached drawing or specification text, the realization method for not being painted or describing is affiliated technology
Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, the above-mentioned definition to each element and method is simultaneously
It is not limited only to various concrete structures, shape or the mode mentioned in embodiment.
It should also be noted that, the demonstration of the parameter comprising particular value can be provided herein, but these parameters are without definite etc.
In corresponding value, but analog value can be similar in acceptable error margin or design constraint.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
Describe in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the protection of the present invention
Within the scope of.
It should be noted that in attached drawing or specification text, the realization method for not being painted or describing is affiliated technology
Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, the above-mentioned definition to each element and method is simultaneously
It is not limited only to various concrete structures, shape or the mode mentioned in embodiment, those of ordinary skill in the art can carry out letter to it
It singly changes or replaces.
Claims (6)
1. a kind of optical-electronic oscillator of parity-time symmetry principle, including：
One laser is λ for generation wavelength0Laser；And
The output end of one Polarization Controller, input terminal and semiconductor laser connects, the tune for being chatted behind control output end
The polarization state of the light of device processed；And
One dual-polarization Mach increases Dare modulator, the output end connection of input terminal and polarization rotator；
One long optical fibers for storing energy, the output end that input terminal increases Dare modulator with dual-polarization Mach are connect；
The output end of one EDFA Erbium-Doped Fiber Amplifier, input terminal and long optical fibers connects；
The output end of one beam splitter, 1 port and EDFA Erbium-Doped Fiber Amplifier connects；
One adjustable optical delay line, the delay for adjusting two ring cavities is consistent, and input terminal is connect with 2 port of score device；
One first photodetector, for detecting optical signal, input terminal is connect with adjustable optical delay line output end；
One first electric amplifier, for so that photosignal gain is able to starting of oscillation, input terminal and first more than loss in loop
The output end of photodetector connects；
One first electrical power beam splitter, 1 port are connect with the output end of the first electric amplifier, and 3 ports are signal output port；
One adjustable optical attenuator, for the loss in circuit where adjusting the device, the pass of control and the net gain in another circuit
3 ports of system, input terminal and beam splitter connect；
The output end of one second photodetector, input terminal and adjustable optical attenuator connects；
One second electric amplifier, output end are connect with the output end of the second photodetector；
One second electrical power beam splitter, input terminal are connect with the output end of the second electric amplifier.
2. the optical-electronic oscillator of parity according to claim 1-time symmetry principle, wherein dual-polarization Mach increases Dare
Modulator 7 includes：
One beam splitter, 1 port are connected with the output end of Polarization Controller；
2 ports of one first intensity modulator, 1 port and beam splitter connect, 3 ports of the first intensity modulator and electric work
2 ports of rate beam splitter connect；
3 ports of one second intensity modulator, 1 port and beam splitter connect, 3 ports of the second intensity modulator and electric work
2 ports of rate beam splitter connect；
One polarizer, input terminal are connect with 2 ports of the second intensity modulator；
One polarization beam combiner, 1 port are connected with the output end of deception device, and 2 ports of 2 ports and the first intensity modulator connect
It connects, 3 ports of polarization beam combiner are the output end that dual-polarization Mach increases Dare modulator.
3. the optical-electronic oscillator of parity according to claim 1-time symmetry principle, wherein described is used to store energy
Long optical fibers length be 30 meters -8000 meters.
4. the optical-electronic oscillator of parity according to claim 1-time symmetry principle, wherein the laser is partly to lead
Body laser or Distributed Feedback Laser.
5. the optical-electronic oscillator of parity according to claim 1-time symmetry principle, wherein the first electric amplifier and first
Electrical power beam splitter is not limited to current link position, can be in the output end and the first intensity modulator of the first photodetector
3 ports between any position connect；
Second electric amplifier and the second electrical power beam splitter are not limited to current link position, can be in the second photodetector
Any position connects between output end and 3 ports of the second intensity modulator.
6. the optical-electronic oscillator of parity according to claim 1-time symmetry principle, wherein dual-polarization Mach increase Dare tune
Device processed can reach for other types modulator increases Dare modulator same effect with dual-polarization Mach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810460566.0A CN108649413B (en) | 2018-05-15 | 2018-05-15 | Photoelectric oscillator based on space scale-time symmetry principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810460566.0A CN108649413B (en) | 2018-05-15 | 2018-05-15 | Photoelectric oscillator based on space scale-time symmetry principle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108649413A true CN108649413A (en) | 2018-10-12 |
| CN108649413B CN108649413B (en) | 2020-02-21 |
Family
ID=63755572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810460566.0A Active CN108649413B (en) | 2018-05-15 | 2018-05-15 | Photoelectric oscillator based on space scale-time symmetry principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108649413B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244828A (en) * | 2018-11-26 | 2019-01-18 | 山东大学 | A kind of high-power semiconductor laser and preparation method thereof based on PT Bragg reflection waveguide |
| CN110233410A (en) * | 2019-06-20 | 2019-09-13 | 暨南大学 | It is a kind of based on parity-time symmetry principle optical-electronic oscillator, fibre system and integrated optoelectronic systems |
| CN111029900A (en) * | 2019-12-25 | 2020-04-17 | 中国科学院半导体研究所 | Three-cavity coupling laser based on space-weighted time symmetry |
| CN111934162A (en) * | 2020-06-19 | 2020-11-13 | 中国人民解放军空军预警学院 | Space-symmetric time-symmetric photoelectric oscillator frequency doubling system based on microwave photon filter |
| CN112202039A (en) * | 2020-09-15 | 2021-01-08 | 暨南大学 | Single-mode fiber ring laser and working method and system thereof |
| CN113131322A (en) * | 2021-04-20 | 2021-07-16 | 西北大学 | Mode locking fiber laser |
| CN113794087A (en) * | 2021-08-12 | 2021-12-14 | 华中科技大学 | PT (potential Transformer) symmetry-based tunable photoelectric oscillator realized by combining high-Q resonator |
| CN113839297A (en) * | 2021-09-08 | 2021-12-24 | 电子科技大学 | Photoelectric oscillator based on injection locking effect |
| CN116154598A (en) * | 2023-02-15 | 2023-05-23 | 之江实验室 | Photoelectric oscillator based on OAM and space-time symmetry break and oscillation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6882781B2 (en) * | 2001-11-16 | 2005-04-19 | Hrl Laboratories, Llc | Coherent power combining of single-mode sources in waveguide fiber couplers |
| CN202454886U (en) * | 2012-02-21 | 2012-09-26 | 山西大同大学 | Wide-band frequency tunable photoelectric oscillator based on injection locking technology |
| CN103166706A (en) * | 2013-02-05 | 2013-06-19 | 上海交通大学 | Tunable-frequency photoelectric oscillation device based on wide spectrum light source |
| CN103441410A (en) * | 2013-09-05 | 2013-12-11 | 中国电子科技集团公司第四十四研究所 | Optical loop device and photoelectric oscillator based on optical loop energy storage and filtering |
-
2018
- 2018-05-15 CN CN201810460566.0A patent/CN108649413B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6882781B2 (en) * | 2001-11-16 | 2005-04-19 | Hrl Laboratories, Llc | Coherent power combining of single-mode sources in waveguide fiber couplers |
| CN202454886U (en) * | 2012-02-21 | 2012-09-26 | 山西大同大学 | Wide-band frequency tunable photoelectric oscillator based on injection locking technology |
| CN103166706A (en) * | 2013-02-05 | 2013-06-19 | 上海交通大学 | Tunable-frequency photoelectric oscillation device based on wide spectrum light source |
| CN103441410A (en) * | 2013-09-05 | 2013-12-11 | 中国电子科技集团公司第四十四研究所 | Optical loop device and photoelectric oscillator based on optical loop energy storage and filtering |
Non-Patent Citations (3)
| Title |
|---|
| HADISEH ALAEIAN 等: ""Parity-time-symmetric plasmonic metamaterials"", 《PHYSICAL REVIEW A》 * |
| HOSSEIN HODAEI 等: ""Parity-time–symmetric microring lasers"", 《SCIENCE》 * |
| YAN-RONG ZHANG 等: ""Anomalous amplified and bound-state-like optical transmissions via unidirectional interaction in parity-time symmetric metamaterials"", 《JOURNAL OF APPLIED PHYSICS》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244828A (en) * | 2018-11-26 | 2019-01-18 | 山东大学 | A kind of high-power semiconductor laser and preparation method thereof based on PT Bragg reflection waveguide |
| CN109244828B (en) * | 2018-11-26 | 2019-09-27 | 山东大学 | A kind of high-power semiconductor laser and preparation method thereof based on PT Bragg reflection waveguide |
| CN110233410A (en) * | 2019-06-20 | 2019-09-13 | 暨南大学 | It is a kind of based on parity-time symmetry principle optical-electronic oscillator, fibre system and integrated optoelectronic systems |
| CN110233410B (en) * | 2019-06-20 | 2020-08-07 | 暨南大学 | Photoelectric oscillator, optical fiber system and integrated photoelectric system based on space scale-time symmetry principle |
| CN111029900A (en) * | 2019-12-25 | 2020-04-17 | 中国科学院半导体研究所 | Three-cavity coupling laser based on space-weighted time symmetry |
| CN111934162A (en) * | 2020-06-19 | 2020-11-13 | 中国人民解放军空军预警学院 | Space-symmetric time-symmetric photoelectric oscillator frequency doubling system based on microwave photon filter |
| CN112202039A (en) * | 2020-09-15 | 2021-01-08 | 暨南大学 | Single-mode fiber ring laser and working method and system thereof |
| CN112202039B (en) * | 2020-09-15 | 2021-10-26 | 暨南大学 | Single-mode fiber ring laser, working method thereof and laser system |
| CN113131322A (en) * | 2021-04-20 | 2021-07-16 | 西北大学 | Mode locking fiber laser |
| CN113794087A (en) * | 2021-08-12 | 2021-12-14 | 华中科技大学 | PT (potential Transformer) symmetry-based tunable photoelectric oscillator realized by combining high-Q resonator |
| CN113839297A (en) * | 2021-09-08 | 2021-12-24 | 电子科技大学 | Photoelectric oscillator based on injection locking effect |
| CN116154598A (en) * | 2023-02-15 | 2023-05-23 | 之江实验室 | Photoelectric oscillator based on OAM and space-time symmetry break and oscillation method |
| CN116154598B (en) * | 2023-02-15 | 2023-12-22 | 之江实验室 | Photoelectric oscillator based on OAM and space-time symmetry break and oscillation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108649413B (en) | 2020-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108649413A (en) | Optical-electronic oscillator based on parity-time symmetry principle | |
| CN103414093B (en) | A kind of all-fiber pulse laser | |
| CN104898288B (en) | Compact semiconductor laser apparatus and two-photon polarization entangled source generation system | |
| CN102545042B (en) | Production method of optical microwave signal with tunable broadband frequency | |
| CN110233410A (en) | It is a kind of based on parity-time symmetry principle optical-electronic oscillator, fibre system and integrated optoelectronic systems | |
| CN105428975B (en) | High power femto second optical fiber laser | |
| US20210257804A1 (en) | All-fiber optical vortex laser based on resonance of orbital angular momentum modes | |
| CN202454886U (en) | Wide-band frequency tunable photoelectric oscillator based on injection locking technology | |
| Zhong et al. | Passively mode-locked fiber laser based on nonlinear optical loop mirror with semiconductor optical amplifier | |
| CN103545703B (en) | Light-operated trigger laser | |
| CN106848823A (en) | A kind of 8 word chamber locked mode post vector optical fiber lasers based on model selection coupler | |
| CN207559266U (en) | A kind of quasi- single-photon source of Wavelength tunable for quantum encryption communication | |
| CN108508676B (en) | Interval adjustable optical frequency comb based on phase modulation and optical fiber cavity soliton and generation method | |
| CN104466636A (en) | Single-frequency Q-switched pulsed fiber laser | |
| CN108089267A (en) | A kind of optical-fiber type broadband light vortex converter | |
| CN105720465B (en) | A kind of 4 ~ 8 μm of pulse Raman full-optical-fiber lasers | |
| CN105742952A (en) | Dark pulse laser with tunable pulse width | |
| CN106169690A (en) | A kind of Gao Zhongying mode locked fiber laser and the method producing Gao Zhongying pulse thereof | |
| CN206773366U (en) | A kind of nonlinear optical fiber amplified broad band four-wave mixing generation device | |
| CN113488839B (en) | Broadband chaotic laser generation device and method based on asymmetric double-path optical feedback | |
| CN206195145U (en) | Many doublings of frequency mode -locking laser based on encircle resonant cavity a little | |
| CN205646423U (en) | 4 full fiber laser of~8 mu m pulse ramans | |
| CN109698458A (en) | The Mamyshev type laser oscillator of non-linear loop filtering | |
| CN104795720B (en) | A kind of beam switching device based on optical microcavity regulation and control | |
| CN204118459U (en) | High power tunable pulse optical fiber |
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 |