CN109361144A - The tunable mode-locked optical fiber laser of Gao Zhongying and laser generation method and application - Google Patents
The tunable mode-locked optical fiber laser of Gao Zhongying and laser generation method and application Download PDFInfo
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- CN109361144A CN109361144A CN201811523730.4A CN201811523730A CN109361144A CN 109361144 A CN109361144 A CN 109361144A CN 201811523730 A CN201811523730 A CN 201811523730A CN 109361144 A CN109361144 A CN 109361144A
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- 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1106—Mode locking
- H01S3/1112—Passive mode locking
- H01S3/1115—Passive mode locking using intracavity saturable absorbers
- H01S3/1118—Semiconductor saturable absorbers, e.g. semiconductor saturable absorber mirrors [SESAMs]; Solid-state saturable absorbers, e.g. carbon nanotube [CNT] based
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- 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
- H01S3/06716—Fibre compositions or doping with active elements
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- 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
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- 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094042—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a fibre laser
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- 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094049—Guiding of the pump light
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Abstract
The present invention relates to a kind of tunable mode-locked optical fiber laser of Gao Zhongying and laser generation method and applications.The tunable mode-locked optical fiber laser of the Gao Zhongying is by using model selection wave plate, pump light is converted to the light of linear polarization mode, the shape adaptation of the super-wide band high-gain optical fiber of the light of the linear polarization mode and gain light to be generated, and pass through rotation quarter-wave plate, the light that can control the linear polarization mode is rotated, light field maximum can be made to be located at the different gains region of super-wide band high-gain optical fiber, it excites wherein different light emitting ionics to generate corresponding gain light, realizes the laser switching between different-waveband.The tunable mode-locked optical fiber laser output mode locking pulse wavelength of the multiband is adjustable within the scope of 1450nm~2150nm, have many advantages, such as that structure is simple, easy to carry, repetition rate can be increased to greater than 500MHz, even 1GHz or more, in terms of the theoretical research of Gao Zhongying field and pulse, have broad application prospects.
Description
Technical field
The present invention relates to laser technology fields, more particularly, to a kind of tunable mode-locked optical fiber laser of Gao Zhongying and laser
Production method and application.
Background technique
Different types of optical fiber laser has different output characteristics.In recent years, with the continuous development of science and technology, various
The novel optical fiber pulse laser of various kinds continues to bring out, such as Q adjusting optical fiber laser, gain switch formula optical fiber laser, mode locking light
Fibre laser, class mode locked fiber laser etc..These optical fiber lasers are played according to its unique output performance in various fields
Various effects.To mix thulium (Tm3+) for mode locked fiber laser, the wideband gain due to thulium ion at 1.8~2.1 μm covers
" fingerprint region " of a large amount of atmospheric molecules has been covered, therefore has mixed thulium mode locked fiber laser and is often applied to high sensitive gas detection.
In various lasers, mode locked fiber laser because its export pulse each longitudinal mode between have locking phase relation,
One of there is innate advantage in directions such as optical frequency calibration, ultrafast measurements, have been a hot spot of research.Mode locked fiber laser is according to lock
The mode of mould is different, can be roughly classified into Active Mode-locked Fiber Laser and passive mode-locking fiber laser.Active mode-locked fiber swashs
Light device is that the equipment (such as acousto-optic modulator) modulated by additional active keeps the locking of phase relation；Passive mode-locking optical-fiber laser
Device is then that saturable absorption effect is utilized, by the way that saturable absorber or equivalent saturable absorber are added in laser cavity,
Light is allowed to spontaneously form PGC demodulation during oscillation in laser cavity.It is locked with the complicated active of at high cost, laser structure
Mode fiber laser is different, and passive mode-locking fiber laser does not need additional modulation, simple and compact structure may be implemented, more hold
Easily realize the pulse output of Gao Zhongying.However, traditional passive mode-locking fiber laser tunable wavelength range is limited, limit
It is further applied.Based on this, it is necessary to it is sharp to provide a kind of tunable mode-locked optical fiber of the Gao Zhongying that tunable wavelength range is wide
Light device and laser generation method and application.
Summary of the invention
Based on this, it is necessary to provide a kind of tunable mode-locked optical fiber laser of the Gao Zhongying that tunable wavelength range is wide and swash
Light production method and application.
A kind of tunable mode-locked optical fiber laser of Gao Zhongying, including pumping source, model selection wave plate, quarter-wave plate,
Dichroic mirror, collimator, super-wide band high-gain optical fiber and saturable absorber, the dichroic mirror, the collimator, the ultra wide band
High-gain optical fiber and the saturable absorber constitute resonant cavity；The pump light that the pumping source issues passes sequentially through the mode
It passes through by the dichroic mirror after selecting wave plate, the quarter-wave plate into the resonant cavity, the dichroiscopic surface is equipped with
For through pump light and for reflecting the deielectric-coating of signal light, the laser fundamental frequency repetitive rate is in 500MHz or more and can be
Wavelength is tuned between 1450nm to 2150nm.
The pumping source is 980nm semiconductor laser in one of the embodiments,.
The deielectric-coating is not less than 70% to the transmitance of pump light in one of the embodiments, to the anti-of signal light
Penetrating rate is 85%~99%.
The super-wide band high-gain optical fiber is a kind of composite construction optical fiber in one of the embodiments, including fibre core and
Covering, the fibre core are made of the symmetrical sector structure of multiple groups, and multiple groups sector structure is by least two variety classes rare earths
The glass of ion doping forms, and rare earth ion includes Er3+、Tm3+And Ho3+, it is fan-shaped that the centre of luminescence is located at the difference in fibre core
Structural region, and each section of fibre core has been co-doped with sensitization rare earth ion Yb3+, each doping concentration of rare earth ion is all larger than 5wt%.
The gain coefficient of the super-wide band high-gain optical fiber is greater than 1dB/cm, gain ranging in one of the embodiments,
For 1450nm~2150nm.
A kind of laser generation method, includes the following steps:
Pump light is converted to the light of linear polarization mode；
The light of the linear polarization mode is rotated, so that the area that light field maximum is adulterated by different light emitting ionics
Domain excites different light emitting ionics to generate corresponding gain, realizes the laser switching between different-waveband；
Amplified laser is exported by resonant cavity.
Above-mentioned laser generation method is adjustable using Gao Zhongying described in any of the above-described embodiment in one of the embodiments,
Humorous mode locked fiber laser.
Described in the tunable mode-locked optical fiber laser of Gao Zhongying described in any of the above-described embodiment or any of the above-described embodiment
The laser that laser generation method generates includes but is not limited to application during optical frequency calibration, ultrafast measurement.
It is inclined to be converted to line by using model selection wave plate by the above-mentioned tunable mode-locked optical fiber laser of Gao Zhongying for pump light
The shape adaptation of the super-wide band high-gain optical fiber of the light of vibration mode, the light of the linear polarization mode and gain light to be generated, and lead to
Rotation quarter-wave plate is crossed, the light that can control the linear polarization mode is rotated, and light field maximum can be made to be located at super
The different gains region of wide band high-gain optical fiber excites wherein different light emitting ionics to generate corresponding gain light, realizes different
Laser switching between wave band.
The tunable mode-locked optical fiber laser of the Gao Zhongying is different from traditional common mode-locked laser, and the Gao Zhongying is adjustable
Humorous mode locked fiber laser output mode locking pulse wavelength is adjustable within the scope of 1450nm~2150nm, and with it is traditional active
Mode-locked laser is compared, and has many advantages, such as that structure is simple, short and pithy, easy to carry, repetition rate can be easily increased to
Greater than 500MHz, the pulse of especially higher than 1GHz is exported, and in terms of the theoretical research of Gao Zhongying field and pulse, is had wide
Application prospect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the tunable mode-locked optical fiber laser of Gao Zhongying of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of super-wide band high-gain optical fiber in Fig. 1.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figure 1, one embodiment of the invention provides a kind of tunable mode-locked optical fiber laser 10 of Gao Zhongying comprising
Pumping source 11, model selection wave plate 12, quarter-wave plate 13, dichroic mirror 14, collimator 15,16 and of super-wide band high-gain optical fiber
Saturable absorber 17.Dichroic mirror 14, collimator 15, super-wide band high-gain optical fiber 16 and saturable absorber 17 constitute linear
Resonant cavity 18.The pump light that pumping source 11 issues passes through after passing sequentially through model selection wave plate 12, quarter-wave plate 13 by two colors
Mirror 14 enters in resonant cavity 18, enters super-wide band high-gain composite construction light 16 by collimator 15 in resonant cavity 18,
Reach saturable absorber 17.The surface of dichroic mirror 14 is equipped with for the deielectric-coating through pump light and for reflecting signal light.
In a specific example, pumping source is 980nm semiconductor laser.
Deielectric-coating can high saturating pump light, and high inverted signal light.In a specific example, deielectric-coating is to the saturating of pump light
Rate is crossed not less than 70%, the reflectivity to signal light is 85%~99%.More specifically, deielectric-coating to the transmitance of pump light not
Reflectivity less than 95% and to signal light is 90%, can export 10% mode locking pulse in this way.
Super-wide band high-gain optical fiber 16 is a kind of composite construction optical fiber, including fibre core and covering.Wherein, fibre core is by multiple groups pair
The sector structure of distribution is claimed to constitute, multiple groups sector structure is made of the rare earth ion doped glass of at least two variety classes, dilute
Native ion includes Er3+、Tm3+And Ho3+, the centre of luminescence is located at the different sector structure regions in fibre core, and each portion of fibre core
Divide and has been co-doped with sensitization rare earth ion Yb3+, each doping concentration of rare earth ion is all larger than 5wt%.Further, the super-wide band high-gain light
The gain ranging of fibre 16 is 1450nm~2150nm, and gain coefficient is greater than 1dB/cm.
In a specific example, the end face of super-wide band high-gain optical fiber 16 is as shown in Figure 2 comprising fibre core, and
It is coated on the covering 164 on the fibre core surface.The fibre core is by three groups of rare earth ion doped regions in symmetrical fan-shaped setting
161, rare earth ion doped region 162, rare earth ion doped region 163 form.Wherein rare earth ion doped region 161 is Er3+/
Yb3+The multicomponent germanate glass of doping, rare earth ion doped region 162 are Tm3+/Yb3+The multicomponent germanate glass of doping
Glass, rare earth ion doped region 163 are Ho3+/Yb3+The multicomponent germanate glass of doping, covering 164 are not rare-earth ion-doped
Multicomponent germanate glass；Er3+、Tm3+、Ho3+、Yb3+The equal > 5wt% of doping concentration.
Rod-in-tube technique preparation can be used in the super-wide band high-gain optical fiber 16, and steps are as follows:
A, Er glass smelting: is melted using traditional melting-annealing method respectively3+/Yb3+、Tm3+/Yb3+And Ho3+/Yb3 +The bulk glass of fiber core and bulk cladding glass of doping；
B, cladding glass is processed: by melted cladding glass by being machined into the glass tube of design size, then being adopted
Inner and outer surfaces are polished with physics and chemical method, obtain covering 164；
C, prepared by composite construction plug: respectively by Er3+/Yb3+、Tm3+/Yb3+、Ho3+/Yb3+The bulk glass of fiber core of doping
By being machined into the glass cylinder of pre-set dimension, then using physically and/or chemically method polished surface, respectively by Er3+/
Yb3+、Tm3+/Yb3+、Ho3+/Yb3+The glass cylinder of doping is drawn into the thin stick of glass, i.e. a wire drawing obtains the thin stick of glass of fiber core；
The thin stick of glass of fiber core is then processed into using mechanical or laser the sector structure of design respectively, is then assembled into composite construction fibre core
Stick sequentially forms rare earth ion doped region 161, rare earth ion doped region 162 or rare earth ion doped region 163,
Covering and each core size require to determine according to Single Mode Fiber Design in middle step b and step c；
D, fibre-optical drawing: composite construction core rod and cladding glass pipe are assembled into composite construction optical fiber prefabricated rods, by group
The preform of dress carries out wire drawing, obtains end face gain fibre as shown in Figure 2.
In addition, the preparation of 3D printing method also can be used in the super-wide band high-gain optical fiber 16, steps are as follows:
A, prepared by composite construction plug: according to component design and size, preparing sector structure respectively using 3D printing method
Fibre core form rare earth ion doped region 161, rare earth ion doped region 162 by design and assembly at composite construction core rod
With rare earth ion doped region 163；Covering 164 is prepared using 3D printing method；
B, fibre-optical drawing: composite construction core rod and cladding glass pipe are assembled into composite construction optical fiber prefabricated rods, by group
The preform of dress carries out wire drawing, obtains end face gain fibre as shown in Figure 2.
Super-wide band high-gain optical fiber 16 shown in Fig. 2 can be used for constructing optical fiber laser and realize tunable laser output, such as
Above-mentioned multiband tunable single-frequency optical fiber laser 10 is constructed, is located at by control light field maximum different rare earth ion doped
The laser switching between different-waveband is realized so that different rare earth ions be excited to generate corresponding gain in region；Pass through temperature
Or Stress Control device, the center operating wavelength of the fiber grating pair at adjustable composite construction gain fibre both ends are realized
The tunable wave length of laser is exported within the scope of 1450nm~2150nm in specific band.
Pump light is converted to line by using model selection wave plate 12 by the tunable mode-locked optical fiber laser 10 of the Gao Zhongying
The shape adaptation of the super-wide band high-gain optical fiber of the light of polarization mode, the light of the linear polarization mode and gain light to be generated, and
By rotating quarter-wave plate 13, the light that can control the linear polarization mode is rotated, and can make light field maximum position
In the different gains region of super-wide band high-gain optical fiber 16, wherein different light emitting ionics is excited to generate corresponding gain light, it is real
Laser switching between existing different-waveband.
The tunable mode-locked optical fiber laser 10 of the Gao Zhongying is different from traditional common mode-locked laser, which can
Tune mode locked fiber laser 10 export mode locking pulse wavelength it is adjustable within the scope of 1450nm~2150nm, and with traditional master
Dynamic formula mode-locked laser is compared, and has many advantages, such as that structure is simple, short and pithy, easy to carry, repetition rate can easily be mentioned
Height especially can easily realize that pulse of the repetition rate higher than 1GHz exports, in Gao Zhongying field and arteries and veins to 500MHz is greater than
In terms of the theoretical research of punching, have broad application prospects.
The present invention further additionally provides a kind of laser generation method comprising following steps:
Step 1: pump light is converted to the light of linear polarization mode；
Step 2: the light of linear polarization mode is rotated, so that light field maximum was adulterated by different light emitting ionics
Region excites different light emitting ionics to generate corresponding gain, realizes the laser switching between different-waveband；
Step 3: the laser after gain is exported by linear cavity.
In step 2, the region of different light emitting ionic doping be can be set in a composite construction optical fiber, this is compound
Structured optical fiber has different gain regions, and different gain regions contain different light emitting ionics, can carry out in various degree
Gain.
Preferably, which can be used the above-mentioned tunable mode-locked optical fiber laser of Gao Zhongying shown in FIG. 1
10。
The laser above-mentioned Gao Zhongying tunable mode-locked optical fiber laser or generated by the above method exports mode locking pulse wavelength
It is adjustable within the scope of 1450nm~2150nm, it has a wide range of applications in Gao Zhongying field, such as can be by any of the above-described implementation
The laser that the tunable mode-locked optical fiber laser of Gao Zhongying or above-mentioned laser generation method of example generate, which is applied, to be demarcated or surpasses in optical frequency
In fast measurement.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (8)
1. a kind of tunable mode-locked optical fiber laser of Gao Zhongying, which is characterized in that including pumping source, model selection wave plate, four points
One of wave plate, dichroic mirror, collimator, super-wide band high-gain optical fiber and saturable absorber, the dichroic mirror, the collimator,
The super-wide band high-gain optical fiber and the saturable absorber constitute resonant cavity；The pump light that the pumping source issues successively leads to
It crosses after the model selection wave plate, the quarter-wave plate through entering the resonant cavity, the dichroic mirror by the dichroic mirror
Surface be equipped with for through pump light and for reflecting the deielectric-coating of signal light, the laser fundamental frequency repetitive rate to be in 500MHz
Above and wavelength can be tuned between 1450nm to 2150nm.
2. the tunable mode-locked optical fiber laser of Gao Zhongying as described in claim 1, which is characterized in that the pumping source is
980nm semiconductor laser.
3. the tunable mode-locked optical fiber laser of Gao Zhongying as described in claim 1, which is characterized in that the deielectric-coating is to pumping
The transmitance of light is not less than 70%, and the reflectivity to signal light is 85%~99%.
4. the tunable mode-locked optical fiber laser of Gao Zhongying according to any one of claims 1 to 3, which is characterized in that described
Super-wide band high-gain optical fiber is a kind of composite construction optical fiber, including fibre core and covering, the fibre core fan symmetrical by multiple groups
Shape structure is constituted, and multiple groups sector structure is made of the rare earth ion doped glass of at least two variety classes, and rare earth ion includes
Er3+、Tm3+And Ho3+, the centre of luminescence is located at the different sector structure regions in fibre core, and each section of fibre core be co-doped with it is quick
Change rare earth ion Yb3+, each doping concentration of rare earth ion is all larger than 5wt%.
5. the tunable mode-locked optical fiber laser of Gao Zhongying as claimed in claim 4, which is characterized in that the super-wide band high-gain
The gain coefficient of optical fiber is greater than 1dB/cm, and gain ranging is 1450nm~2150nm.
6. a kind of laser generation method, which comprises the steps of:
Pump light is converted to the light of linear polarization mode；
The light of the linear polarization mode is rotated, so that the region that light field maximum is adulterated by different light emitting ionics, swashs
The light emitting ionic for sending out different generates corresponding gain, realizes the laser switching between different-waveband；
Amplified laser is exported by resonant cavity.
7. laser generation method as claimed in claim 6, which is characterized in that using as described in any one of Claims 1 to 5
The tunable mode-locked optical fiber laser of Gao Zhongying.
8. such as the tunable mode-locked optical fiber laser of Gao Zhongying according to any one of claims 1 to 5 or such as claim 6 or 7
The laser that the laser generation method generates includes but is not limited to application during optical frequency calibration, ultrafast measurement.
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| WO2014197052A2 (en) * | 2013-03-13 | 2014-12-11 | Nufern | Multi-core optical fibers |
| CN107111051A (en) * | 2014-10-20 | 2017-08-29 | 可利雷斯股份有限公司 | Optical module and the method for producing such optical module |
| CN105236730A (en) * | 2015-09-15 | 2016-01-13 | 华南理工大学 | Ultra-wide-band fluorescent glass optical fiber and preparation method thereof |
| US20170219769A1 (en) * | 2016-01-29 | 2017-08-03 | Corning Incorporated | Optical fiber span with low differential mode delay |
| CN106159662A (en) * | 2016-08-26 | 2016-11-23 | 四川大学 | Iron-doped zinc selenide saturable absorbing mirror and the mode locked fiber laser prepared and constitute thereof |
| CN106785842A (en) * | 2017-01-05 | 2017-05-31 | 南京诺派激光技术有限公司 | Passive mode-locking fiber laser based on Cadmium arsenide's film |
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