CN208970925U - The compound cavity optical fibre laser of high-energy - Google Patents
The compound cavity optical fibre laser of high-energy Download PDFInfo
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- CN208970925U CN208970925U CN201821632675.8U CN201821632675U CN208970925U CN 208970925 U CN208970925 U CN 208970925U CN 201821632675 U CN201821632675 U CN 201821632675U CN 208970925 U CN208970925 U CN 208970925U
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Abstract
The utility model relates to fiber laser technology fields, disclose a kind of compound cavity optical fibre laser of high-energy, it connects the figure of eight resonant cavity formed by the first and second fiber optic loop with non-linear gain and filter effect and constitutes, and each fiber optic loop is made of pump light source, wavelength division multiplexer, gain fibre, optical fiber filter, fiber coupler, fibre optic isolater and Polarization Controller.Its first fiber optic loop has independent resonant cavity characteristic, can generate to self-starting another pulse format independently of main chamber pulse, the attribute with auxiliary resonance chamber.The invention also discloses compound cavity optical fibre lasers to realize the method that the controllable excitation induction of main chamber pulse is generated with multiple-pulse coherent superposition state.The utility model can not only obtain the main chamber laser pulse controllably excited, and can also obtain multiple-pulse coherent superposition state, be widely used in the fields such as the delay of full light, all-optical storage and full photocontrol, have very strong creative.
Description
Technical field
The utility model relates to fiber laser technology field, in particular to a kind of compound cavity optical fibre laser of high-energy.
Background technique
There are mainly two types of the laser mechanism for generating pulse, mode locking mode and non-mode locking mode.Wherein, non-mode locking mode produces
The mode of raw pulse has: modulational instability, intensity modulating method, gain switch method, time domain Talbot effect method, time domain
Holography method etc..But the pulse laser of non-mode locking mechanism have the shortcomings that it is following obvious: have the stronger continuous light of residue
Background, the coherence between pulse is poor, and what is be easy to get is train of pulse rather than pulse envelope, it is difficult to generate ultrashort pulse.Cause
And mode locking pulse be always laser physics field, industrial application, field of precision measurement, in biomedical imaging field
Important Academic research object and engineer application object.In the laser, if effect of dispersion and nonlinear effect energy accurate balance,
The pulse broadening that the pulse of saturated absorption induction narrows with the induction of finite gain-bandwidth filter effect can accurately be offset, then swashed
Light device exports stable orphan's type mode locking pulse.Mode-locked laser pulse be widely used in micro-nano technology, it is biomedical at
The fields such as picture, optical precision measurement.
Mode locking method mainly has material saturated absorbing body and two kinds of class saturated absorbing body.The saturated absorbing body of material base, such as
Graphene, carbon nanotube, black phosphorus, topological insulator, sulfide etc. can make laser generate the lock of stable, low starting threshold value
Mould laser pulse, but its major defect is to be easy to be damaged by intracavitary high power laser light, so as to cause saturated absorption failure.?
With the class saturated absorbing body of equivalent saturated absorption effect in physical effect, if nonlinear polarization rotation technology (NPR) is [with reference to text
Offer 1.W.Chen, et al.Opt.Express, 2015,23 (21): 28012-28021.], Nonlinear optical directional couplers (NOLM)
[bibliography 2.J.Szczepanek et al.Opt.Lett., 2015,40 (15): 3500-3503.], nonlinear optical fiber are put
Big loop mirror (NALM) [bibliography 3.Y.-Q.Huang, et al.Opt.Lett., 2016,41 (17): 4056-4059.],
Mamyshev oscillator [bibliography 4.P.Sidorenko, et al.Opt.Lett., 2018,43 (11): 2672-2675.]
Deng, the class saturated absorption slow Henan time short (reaching fs magnitude) of generation, modulation depth depth, the saturation relative to material base
Absorber is easier to obtain ultrashort mode locking pulse.But NPR mode-locking technique, it is very sensitive to the random birefringence of fibre circuit,
Losing lock is easy by environmental disturbances.And NOLM and NALM mode-locking technique, then need point of fiber coupler in accurate control loop
Light ratio, and the transmission characteristic of light wave is not easy by continuous tuning.The relatively other skills of mode locking pulse that Mamyshev oscillator generates
Art is easier to obtain big energy light pulse, but mode locking self-starting threshold value is very high.If two of Mamyshev oscillator are filtered
The interval of wave device bandpass center wavelength is greater than 4nm, generally requires through outer seed injection pulse or carries out intensity to draw power
The method of modulation obtains self-starting mode locking pulse.
Exporting to self-starting high energy pulse and the adjustable optical fiber laser of pulse energy dynamic is current high power laser light
The important development direction of pulse.In order to meet the needs of industry is to high energy pulse laser, the utility model will provide a solution
Certainly scheme, realization generate high energy pulse under the conditions of low starting threshold value.
Utility model content
In view of the deficiencies of the prior art, the utility model discloses a kind of compound cavity optical fibre lasers of high-energy, to solve
The high energy laser pulse self-starting of the prior art is difficult, pulse controllably excites difficult technical problem.
The utility model is achieved by the following technical programs:
A kind of compound cavity optical fibre laser of high-energy, including compensated cavity and main chamber；The compensated cavity is locked with discrete laser
Mould mechanism is made of the first fiber optic loop；Main chamber is by the first and second light with non-linear gain effect Yu spectral filtering effect
Fine ring connects the figure of eight resonant cavity to be formed and constitutes, and first and second fiber optic loop is by pump light source, wavelength division multiplexer, gain light
Fibre, optical fiber filter, y-type optical fiber coupler, fibre optic isolater and Polarization Controller form, between first and second fiber optic loop
Each device is connected using Standard single-mode fiber and realizes that optical path is connected to.
Preferably, the y-type optical fiber coupler in the first fiber optic loop for laser output, for the fiber coupling for not waiting ratios
Device, splitting ratio range are 99:1~60:40, and the lesser fiber port of splitting ratio is the output port of entire laser.
Preferably, in main chamber the optical fiber filter bandpass center wavelength of the first fiber optic loop and the second fiber optic loop optical fiber
Filter bandpass center wavelength is not overlapped.When operating of the laser in main chamber, the gain media in the first fiber optic loop is carried out
Non-linear gain amplifies and realizes video stretching, has then carried out spectral filtering in optical fiber filter and has selected certain band
Wide laser spectrum.In turn, the gain media in the second fiber optic loop has carried out non-linear gain amplification again and has realized video stretching,
Then it experienced the spectral filtering of different central wavelengths again in optical fiber filter.
In brief, entire non-linear gain filtering --- the laser evolutionary process of non-linear gain filtering, in physical machine
It is exactly that periodic video stretching and spectral filtering process play so as to form stair-stepping class saturated absorption phenomenon in reason
The purpose for inhibiting the continuous light of background, high intensity pulses being allowed to generate.
Laser in main chamber oscillation track like the figure of eight.The output and the bandpass center of two filters of pulse energy
Wavelength interval is related, and bandpass center wavelength interval is bigger, and output pulse energy is bigger.The generation process of laser pulse with
Mamyshev oscillator is similar.
Preferably, two fiber optic loops in main chamber have one section of sharing fiber branch section, by two y-type optical fiber couplers, partially
Miniature Fabry-P é rot chamber the composition that vibration controller and the gain fibre of a Duan Youwei pumping are constituted.
Two y-type optical fiber couplers, splitting ratio 50:50 play the role of connecting two optical fiber loops.
Miniature Fabry-P é rot the chamber is made of the gain fibre of one section of non-pumping, and the both ends of the gain fibre are logical
It crosses polishing and forms the end face that smooth, reflectivity is lower than 20%, form the miniature cavity configuration of similar Fabry-P é rot chamber.
The flat end face of two gain fibres constitutes two hysteroscopes of Fabry-P é rot chamber.Gain fibre end face and conventional single mode light
Fine (being also required to carry out being polished into smooth plane) directly carries out Space Collimation coupling, realizes the connection of optical path.After optical path connection,
The fiber end face that Space Collimation coupling is completed is subjected to enclosed package with glass tube, shielding external environment can be realized to space
Collimate the interference of coupling unit.
Miniature Fabry-P é rot the chamber has the effect that the gain light of (1) non-pumping in composite chamber laser
Fibre carries out unsaturation absorption to the laser pulse vibrated in main chamber, realizes the intensity modulated effect to main chamber laser.It is this
Intensity modulated effect can be such that the self-starting threshold value of main chamber mode locking pulse is greatly reduced.The parameter of the gain fibre should select total suction
It receives coefficient and is less than 1dB, to reduce intracavitary laser loss.(2) there is miniature Fabry-P é rot chamber faint spectral filtering to make
With the first fiber optic loop capable of being made to constitute another independent laser resonator, and export based on Mamyshev oscillator operation mechanism
Independently of another pulse format of main chamber pulse.The pulse format can be induced based on the nonlinear effect of Cross-phase Modulation
Main chamber pulse is excited in the form of its repetitive rate, and can realize main chamber pulse and compensated cavity pulse by the adjusting of Polarization Controller
Coherent modulation in the time domain and form multiple-pulse coherent superposition state.From physical function, the first fiber optic loop has independent humorous
The attribute of vibration chamber, and induction excitation, thus referred to as compensated cavity are played to the generation of main chamber pulse.
Preferably, the cavity mirrors reflectivity of the miniature Fabry-P é rot chamber is to determine that can compensated cavity pulse simultaneously from
The prerequisite of vibration, if cavity mirrors reflectivity is too small, the filter effect of miniature Fabry-P é rot chamber is unobvious, compensated cavity pulse
It is not easy self-starting.
A kind of method that the compound cavity optical fibre laser pulse of high-energy controllably induces excitation, which is characterized in that the method
The following steps are included:
The crushing strength of S1, the handle angle of rotatory polarization controller and handle so that compensated cavity self-starting generate lock
Mould pulse.In order to make compensated cavity be easier self-starting modelocking, optical fiber filter central wavelength is adjusted, so that optical fiber filter band logical
The equivalence filter central wavelength interval that central wavelength and Fabry-P é rot chamber are formed is less than 1nm, with low obtained from starting threshold value
Mode locking pulse.
Pump light source power in S2, increase compensated cavity, and then increase the energy work rate of compensated cavity pulse, based on intersection phase
Position mudulation effect, compensated cavity pulse induction main chamber generate self-starting modelocking main chamber pulse in the form of its pulse recurrence rate.
S3, adjust main chamber in two optical fiber filters bandpass center wavelength interval, obtain the main chamber arteries and veins of different-energy
Punching output.
S4, the handle angle for further adjusting Polarization Controller, so that main chamber pulse weighs in the time domain with compensated cavity pulse
It is folded, and by the coherent states field regulation between them, form multiple-pulse coherent superposition state.
Preferably, in the S3, the bandpass center wavelength interval of two optical fiber filters determines main chamber mode locking pulse energy
Amount, wavelength interval is bigger, and the pulse energy of output is bigger.The gain fibre overall gain coefficient of pumping in main chamber is bigger, in band logical
The adjustable extent of heart wavelength interval is also bigger.Pulse output for tens nJ magnitudes, two optical fiber filter bandpass centers
Wavelength interval is in 8nm or more.
The utility model has the following beneficial effects:
1, in miniature Fabry-P é rot chamber not by the gain fibre of pumping, main chamber laser signal is inhaled with unsaturation
Adduction, so as to form the intensity modulated effect to main chamber laser, so that the self-starting modelocking threshold value of main chamber reduces, it is easier to
Obtain the mode locking pulse of high-energy.It is intracavitary to introduce unsaturation sink effect, solve high energy in traditional Mamyshev oscillator
Measure the problem of pulse self-starting difficulty.
2, the compensated cavity being made of the first fiber optic loop, non-linear gain-filter action based on the period and the class that is formed is full
And sink effect, the pulse format of oneself can be generated independently of main chamber.And the compensated cavity pulse after self-starting, it is based on cross-phase
Mudulation effect can induce main chamber and generate the mode locking pulse controllably excited.From Physical Mechanism, it is equivalent to and further reduced master
The threshold value of chamber pulse self-starting modelocking.Meanwhile the repetitive rate of compensated cavity pulse pair main chamber pulse, pulsewidth, time domain space distribution tool
There is important influence.
3, by being adjusted to the polarization state of main chamber pulse and compensated cavity pulse, it is adjustable they on time-domain and frequency-domain
Overlapping, and interacted by the light field of their own to obtain different impulse cluster states, to obtain multiple-pulse coherent superposition
State.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the compound cavity optical fibre laser embodiment of the utility model high-energy ultrashort pulse；
Fig. 2 is the structural schematic diagram of miniature Fabry-P é rot chamber；
Wherein: 1- pump light source, 2- wavelength division multiplexer, 3- gain fibre, 4- optical fiber filter, 5-fibre optic isolaters,
6-Polarization Controllers, 7-Y type fiber coupler, 8a-Fabry-P é rot the first hysteroscope of chamber, 8b-Fabry-P é rot chamber second
Hysteroscope, 9-single mode optical fibers, 10-glass tubes；
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Embodiment 1
In the compound cavity optical fibre laser of high-energy ultrashort pulse of the utility model, pump light source, wavelength division multiplexer, optical fiber
Isolator, Polarization Controller, fiber coupler, optical fiber filter and gain fibre are all made of commercial devices.According to operation wavelength
For the requirement of 1000nm, 1310nm, 1550nm and 2000nm wave band, gain fibre can be respectively adopted mix Nd3+, Yb3+, Pr3+,
Er3+ or Tm3+ optical fiber.
As shown in Figure 1, the compound cavity optical fibre laser of high-energy ultrashort pulse, by the master comprising compensated cavity (the first fiber optic loop)
Chamber is constituted.Main chamber is humorous for the figure of eight structure connected and composed by the first and second fiber optic loop with non-linear gain and filter effect
Shake chamber.Each fiber optic loop by pump light source 1, wavelength division multiplexer 2, gain fibre 3, optical fiber filter 4, fibre optic isolater 5 and partially
Shake controller 6 and the composition of y-type optical fiber coupler 7.The tail optical fiber of each optical fibre device by Standard single-mode fiber 9 (SMF 28e) according to
Welding connection is carried out according to the scheme of Fig. 1, forms light passing optical path.
Wherein, for the y-type optical fiber coupler 7 of composite chamber laser output end, using non-equal than coupler, splitting ratio model
It is trapped among between 99:1 to 60:40.For connecting the y-type optical fiber coupler 7 of the first and second fiber optic loop, using etc. than coupler, light splitting
Than for 50:50.
Wherein, on the common branch in the first fiber optic loop and the second fiber optic loop, a miniature Fabry-P é rot is embedded
Chamber, miniature Fabry-P é rot cavity configuration are as shown in Figure 2.Two end faces polishing of the gain fibre of one section of non-pumping is formd
Smooth, reflectivity is lower than 20% Fresnel reflection face, forms the miniature cavity configuration of similar Fabry-P é rot chamber.
The flat end face of two gain fibres constitutes two hysteroscopes 8a and 8b of Fabry-P é rot chamber.Gain fibre end
Face is again and Standard single-mode fiber 9 (method for treating end face is identical as gain fibre) directly carries out Space Collimation coupling, realizes optical path
Connection.
Generally require Space Collimation coupling efficiency not less than 80%.After optical path connection, the light of Space Collimation coupling will be carried out
Fine end face carries out enclosed package with glass tube, so that Space Collimation coupling unit is not by the interference of external environment.Not by pumping
Gain fibre is long to the main shock wave generated in resonant cavity to have absorption.
The utility model to not by the gain fibre of pumping total absorption coefficient suggestion select in 1dB hereinafter, non-to realize
Fully saturated absorption reduces main chamber mode locking pulse so that realizing has the function of intensity modulated to the laser vibrated in main chamber
The threshold value of self-starting.
In addition it should be pointed out that be that the bandpass center wavelength of optical fiber filter in the first and second fiber optic loop should not be overlapped.Two
The central wavelength interval of a filter determines the size of main chamber pulse energy.Between the central wavelength of two filters of dynamic regulation
Every the different main chamber pulse of energy can be obtained.In the present invention, the central wavelength interval of two filters is in 0-
12nm, adjustable range are much larger than the Mamyshev oscillator reported at present.
The mechanism of production of main chamber pulse is: in the first fiber optic loop, pump light source 1 carries out pumping to gain fibre 3, generates
Laser signal.In gain fibre transmission, laser signal experienced non-linear gain process frequency spectrum and be broadened, using light
The laser signal of specific band logical wave band is produced after the spectral filtering of fiber filter 4.
Band logical laser signal has carried out unsaturation absorption when transmitting on common branch, by non-pumping gain fibre, is formed
Apparent intensity modulated, subsequently enters the non-thread of the gain fibre 3 and optical fiber filter 4 for undergoing pumping in the second fiber optic loop again
Property gain and spectral filtering process, two cascade non-linear gains and filtering, formd in Physical Mechanism ladder-like
Class saturated absorption phenomenon, it is suppressed that the continuous light of background, and allow passing through for high intensity pulses, so as to cause mode locking pulse from
Starting.Oscillation track of the laser pulse in main chamber is shown in the schematic diagram of Fig. 1.Between the central wavelength for adjusting two optical fiber filters
Every can dynamically obtain the pulse of different-energy.
In the present embodiment, miniature Fabry-P é rot chamber is also an equivalent filter in Physical Mechanism, is only filtered
Wave effect more than optical fiber filter 4 want it is weak very much.In the first fiber optic loop, optical fiber filter 4 and miniature Fabry-P é rot chamber,
Also the spectrum filter of two non-overlaps can be constituted, to form class saturated absorption, the first fiber optic loop has become one solely
Vertical auxiliary resonance chamber, the mechanism of production based on above-mentioned laser pulse generate another independent self-starting modelocking pulse.
Compensated cavity laser pulse oscillation track is shown in the schematic diagram in Fig. 1.In order to enable compensated cavity pulse is easier self-starting,
Need to adjust the optical fiber filter 4 in the first fiber optic loop, so that the central wavelength of optical fiber filter 4 and Fabry-P é rot chamber
Equivalence filter central wavelength interval is less than 1nm, generates the compensated cavity pulse of lower starting threshold value.
After compensated cavity pulse self-starting, the important influence of following two will be generated to the output of composite chamber laser:
1, controllable excitation of the compensated cavity pulse based on cross-phase modulation effect induction main chamber pulse.Compensated cavity pulse is opened certainly
After dynamic, by adjusting draw power, compensated cavity pulse energy can be increased.Based on Cross-phase Modulation, compensated cavity pulse can be right
The continuous light of background in main chamber carries out the modulation of phase shift and intensity, to make the continuous light of background in the class saturated absorption of main chamber
It is evolved into self-starting modelocking pulse rapidly down, shows the controllable induction induced phenomenon of main chamber pulse.Compensated cavity pulse can be controlled
The physical characteristics such as repetitive rate, the time domain distribution of main chamber pulse processed.
2, compensated cavity pulse and main chamber pulse, which pass through interaction, can form multiple-pulse coherent superposition state.It is polarized by adjusting
Controller, so that main chamber pulse generates Chong Die in the time domain with compensated cavity pulse and generates interaction.When they are in laser
Relevant Multiple pulse superposition state is formed when middle evolution, when phase reaches locking.
Embodiment 2
A kind of method that the compound cavity optical fibre laser pulse of high-energy controllably induces excitation, comprising the following steps:
The crushing strength of S1, the handle angle of rotatory polarization controller and handle so that compensated cavity self-starting generate lock
Mould pulse.In order to make compensated cavity be easier self-starting modelocking, optical fiber filter central wavelength is adjusted, so that optical fiber filter band logical
The equivalence filter central wavelength interval that central wavelength and Fabry-P é rot chamber are formed is less than 1nm, with low obtained from starting threshold value
Mode locking pulse.
Pump light source power in S2, increase compensated cavity, and then increase the energy work rate of compensated cavity pulse, based on intersection phase
Position mudulation effect, compensated cavity pulse induction main chamber generate self-starting modelocking main chamber pulse in the form of its pulse recurrence rate.
S3, adjust main chamber in two optical fiber filters bandpass center wavelength interval, obtain the main chamber arteries and veins of different-energy
Punching output.
S4, the handle angle for further adjusting Polarization Controller, so that main chamber pulse weighs in the time domain with compensated cavity pulse
It is folded, and by the coherent states field regulation between them, form multiple-pulse coherent superposition state.
In S3, the bandpass center wavelength interval of two optical fiber filters determines main chamber mode locking pulse energy, wavelength interval
Bigger, the pulse energy of output is bigger.The gain fibre overall gain coefficient of pumping in main chamber is bigger, bandpass center wavelength interval
Adjustable extent is also bigger.Pulse output for tens nJ magnitudes, two optical fiber filter bandpass center wavelength intervals are in 8nm
More than.
The present embodiment can obtain multiple-pulse coherent superposition state, in the fields such as the delay of full light, all-optical storage and full photocontrol
It is widely used.
Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality
Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (7)
1. a kind of compound cavity optical fibre laser of high-energy, it is characterised in that: including compensated cavity and main chamber；The compensated cavity has only
Vertical laser mode locking mechanism, is made of the first fiber optic loop；Main chamber is by with non-linear gain effect and spectral filtering effect
First and second fiber optic loop connects the figure of eight resonant cavity to be formed and constitutes, and first and second fiber optic loop is by pump light source, wavelength-division multiplex
Device, gain fibre, optical fiber filter, y-type optical fiber coupler, fibre optic isolater and Polarization Controller composition, first and second light
Each device is connected using Standard single-mode fiber between fine ring and realizes that optical path is connected to.
2. the compound cavity optical fibre laser of high-energy according to claim 1, which is characterized in that the compensated cavity is with non-pumping
Gain fibre be made into a miniature Fabry-P é rot chamber.
3. the compound cavity optical fibre laser of high-energy according to claim 2, which is characterized in that the non-pumping gain light
Fine total absorption coefficient is less than 1dB；In the miniature Fabry-P é rot chamber, by fiber end face formed equivalent the first hysteroscope and
The light reflectivity of second hysteroscope, first hysteroscope and the second hysteroscope is below 20%.
4. the compound cavity optical fibre laser of high-energy according to claim 1 or 2, which is characterized in that the compensated cavity passes through
The bandpass center wavelength and miniature Fabry-P é rot chamber that adjust optical fiber filter are formed by the bandpass center wave of equivalence filter
Length is not overlapped.
5. the compound cavity optical fibre laser of high-energy according to claim 1, which is characterized in that the compensated cavity generate from
The controllable excitation of main chamber mode locking pulse, the self-starting that the compensated cavity generates can be induced by nonlinear effect by starting mode locking pulse
Mode locking pulse energy is fundamental soliton energy or more, magnitude 10-99nJ.
6. the compound cavity optical fibre laser of high-energy according to claim 1, which is characterized in that main chamber is equal with compensated cavity
Respective pulse format is independently generated based on respective pulse generation mechanism, and obtains multiple-pulse coherent superposition state.
7. the compound cavity optical fibre laser of high-energy according to claim 1, which is characterized in that two light in main chamber
Fine ring has one section of sharing fiber branch section, by two y-type optical fiber couplers, the gain light of Polarization Controller and a Duan Youwei pumping
Miniature Fabry-P é rot chamber the composition that fibre is constituted.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301683A (en) * | 2018-10-09 | 2019-02-01 | 佛山科学技术学院 | The method that the compound cavity optical fibre laser of high-energy and pulse controllably induce excitation |
| CN112423163A (en) * | 2020-10-12 | 2021-02-26 | 江西师范大学 | Optical buffer based on coherent feedback |
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2018
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301683A (en) * | 2018-10-09 | 2019-02-01 | 佛山科学技术学院 | The method that the compound cavity optical fibre laser of high-energy and pulse controllably induce excitation |
| CN109301683B (en) * | 2018-10-09 | 2023-09-12 | 佛山科学技术学院 | High-energy composite cavity fiber laser and pulse controllable induction excitation method |
| CN112423163A (en) * | 2020-10-12 | 2021-02-26 | 江西师范大学 | Optical buffer based on coherent feedback |
| CN112423163B (en) * | 2020-10-12 | 2023-03-14 | 江西师范大学 | Optical buffer based on coherent feedback |
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