CN113036584A - Ultrashort pulse vortex light beam generating device - Google Patents
Ultrashort pulse vortex light beam generating device Download PDFInfo
- Publication number
- CN113036584A CN113036584A CN202110233228.5A CN202110233228A CN113036584A CN 113036584 A CN113036584 A CN 113036584A CN 202110233228 A CN202110233228 A CN 202110233228A CN 113036584 A CN113036584 A CN 113036584A
- Authority
- CN
- China
- Prior art keywords
- mode
- fiber
- coupler
- optical fiber
- ultrashort pulse
- 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.)
- Pending
Links
Images
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
- 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
- H01S3/06754—Fibre amplifiers
-
- 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
-
- 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
- H01S3/06754—Fibre amplifiers
- H01S3/06783—Amplifying coupler
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
The invention discloses an ultrashort pulse vortex light beam generating device which comprises a mode-locked fiber laser loop and a vortex light beam amplifier, wherein the mode-locked fiber laser loop is used for generating ultrashort pulse vortex seed light, the vortex light beam amplifier is used for amplifying the ultrashort pulse vortex seed light, an optical fiber mode coupler used for converting light beams from a low-order mode to a high-order mode is arranged in the mode-locked fiber laser loop, and the mode-locked fiber laser loop is connected with the input end of the vortex light beam amplifier through the optical fiber mode coupler. According to the invention, the optical fiber mode coupler and the like are directly accessed into the loop of the mode-locked fiber laser, so that the regulation and control of the transverse mode in the optical fiber are simplified to obtain a large-topology load vortex mode; on the other hand, the optical fiber mode coupler is also an output coupler, so that the manufacturing difficulty and cost of the optical fiber mode coupler are obviously reduced, the laser power loss during the conversion of the mode outside the cavity is also avoided, and the optical fiber mode coupler is an important development direction for novel vector light field regulation.
Description
Technical Field
The invention relates to a fiber laser, in particular to a high-power large-topology-load all-fiber ultrashort pulse vortex beam generating device.
Background
Vortex beam generally refers to a new structured beam with a helical phase front exp (il phi), which is carried by a single photon
Orbital Angular Momentum (OAM) (l is the topological charge number), also known as an orbital angular momentum beam. There is a phase singularity in the center of the vortex beam, appearing as an annular spot with zero central intensity. The characteristics of orbital angular momentum carried by vortex beams and annular light intensity distribution thereof enable the vortex beams to be widely applied to the fields of optical capture, optical fiber communication, quantum information, laser processing, spectrum probes and the like. In the field of laser micro-nano processing, the annular light intensity distribution of vortex beams can be used for manufacturing complex micro-pipelines by a laser direct writing technology, and the spiral interference fringes can also realize the processing of a micro-nano chiral structure. In laser processing, in order to reduce the edge thermal effect of the gaussian beam, the gaussian beam is often converted into a flat-top beam, while the processing effect of the vortex beam is equivalent to that of the flat-top beam, and long-focus deep focusing is easier to realize. The application of the fields of laser micro-nano processing and the like puts a strong demand on the generation of high-power ultrashort pulse vortex beams. However, few proposals are reported for high power ultrashort pulse vortex beam generation.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a device for realizing high-power large-topology charge number ultrashort pulse vortex light beam output.
The technical scheme is as follows: the ultrashort pulse vortex light beam generating device comprises a mode-locked fiber laser loop and a vortex light beam amplifier, wherein the mode-locked fiber laser loop is used for generating ultrashort pulse vortex seed light, the vortex light beam amplifier is used for amplifying the ultrashort pulse vortex seed light, an optical fiber mode coupler used for converting light beams from a low-order mode to a high-order mode is arranged in the mode-locked fiber laser loop, and the mode-locked fiber laser loop is connected with the input end of the vortex light beam amplifier through the optical fiber mode coupler.
Furthermore, the optical fiber mode coupler is of a biconical waveguide structure and is formed by melting and stretching a single mode optical fiber and a hollow optical fiber or a spiral optical fiber through a pre-shrinking fiber. In the actual preparation process, the fiber core radiuses of the single-mode fiber and the hollow or spiral fiber meet the phase matching condition by adopting a fiber pre-shrinking technology, then heating and melting are carried out at high temperature, meanwhile, the fiber core radiuses are stretched towards two sides, the optical power coupling curve of the fiber core radiuses is monitored by a computer, the fire stopping time is controlled according to the relation between the splitting ratio and the length of a tapering, and finally the biconical waveguide is formed in a heating area. The prepared optical fiber mode coupler can enlarge the difference of mode effective refractive indexes among the submodels, avoids crosstalk among the submodels and is better used for HE21/HE31And high order mode conversion. Preferably, the fiber mode coupler is an HE of a single mode fiber11HE of mode-oriented hollow fiber or spiral fiber31Mode conversion, and the optical field mode of the input end and the output end of the single mode fiber is HE11The optical field mode at the output end of the mode, hollow fiber or spiral fiber is HE31And (5) molding.
Furthermore, the mode-locked fiber laser loop further comprises a first pump laser, a first wavelength division multiplexer, a first gain fiber, a first polarization controller, a mode-locked device and a second polarization controller; a first optical isolator for eliminating return light in a loop is connected between the first polarization controller and the mode locking device; a first output coupler for monitoring the mode and polarization of the light beam in the loop is arranged between the mode locking device and the second polarization controller; the output end of the first pump laser is connected with the input end of the first wavelength division multiplexer, the first wavelength division multiplexer is connected with the input end of the optical fiber mode coupler through a first gain optical fiber, the output end of the optical fiber mode coupler is connected with the input end of the first polarization controller, the output end of the first polarization controller is connected with the input end of the mode locking device, and the output end of the mode locking device is connected with the input end of the first wavelength division multiplexer through a second polarization controller to form an annular cavity. The light beam emitted by the first pump laser passes through the first wavelength division multiplexer and then is connected into a loop of the mode-locked fiber laserThe first gain fiber is rare earth doped gain fiber, which is used as gain medium, and can be erbium/ytterbium doped gain fiber, and when the light beam passing through the gain enters the fiber mode coupler, the output end of the single mode fiber outputs HE11The mode is connected to the first polarization controller and used as loop seed light of the annular mode-locked laser, and the output end of the hollow or spiral optical fiber outputs HE31And the module is connected with the vortex beam amplifier and is used for obtaining ultrashort pulse vortex seed light. Wherein, the effect of first polarization controller is the polarization of control light beam in the optic fibre, reaches the effect of the polarization state of light in the stable loop, and the effect of second polarization controller is the same with first polarization controller, can realize harmonic mode locking through adjusting first polarizer and second polarizer, and then adjusts mode locking pulse's repetition frequency, and the mode locking device adopts and is based on C4N3The saturable absorber and the semiconductor saturable absorber mirror (SESAM) of novel two-dimensional materials such as black phosphorus and graphene are used for ensuring that pulses are formed in a loop and stable ultrashort pulse vortex beam seed light is formed, and the output ratio of the first output coupler is 99.5: 0.5 for detecting the mode, polarization, pulse width, repetition rate and spectrum of the beam in the loop.
Further, the vortex beam amplifier comprises a second optical fiber coupler, a second optical isolator, a second pump laser, a second wavelength division multiplexer and a second gain optical fiber; the output end of the optical fiber mode coupler is connected with the second gain optical fiber sequentially through the second optical fiber coupler, the second optical isolator and the second wavelength division multiplexer; and the output end of the second pump laser is connected with the input end of the second wavelength division multiplexer. The light beam emitted by the second pump laser is accessed into the system through the second wavelength division multiplexer and is used for pumping the second gain optical fiber, the second gain optical fiber adopts a rare earth doped hollow gain optical fiber, the structure is composed of an air core, an annular rare earth doped gain region and a cladding, the effective refractive index difference of an approximate degenerate submodule in the optical fiber LP module can be improved, the intermode coupling of the approximate degenerate submodules in the amplification process of the vortex light beam is inhibited, and the ultrashort pulse vortex light beam seed light is accessed into the system through the optical fiber mode coupler and is amplified and output through the pumped rare earth doped hollow gain optical fiber. The second optical isolator is used for eliminating return light in the loop, and the second optical fiber coupler is used for monitoring the mode and polarization of the light beam in the loop.
Further, the wavelength of the ultrashort pulse vortex seed light is 1030-1064 nm waveband, 1310nm waveband or 1550nm waveband.
The working principle of the invention is as follows: ultra-short pulse HE (high energy efficiency) obtained based on annular mode-locked fiber laser11Mode out, coupling HE via fiber mode coupler11Mode direction HE21/HE31And obtaining ultrashort pulse vortex seed light through equal mode coupling. And then, amplifying the input ultrashort pulse vortex pulse seed light based on the hollow fiber vortex beam amplifier to obtain high-power ultrashort pulse vortex beam output.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the device of the invention directly accesses the optical fiber mode coupler into the loop of the mode-locked fiber laser, and on the one hand, directly accesses the HE11Mode direction HE21/HE31The equal mode conversion simplifies the regulation and control of the transverse mode in the optical fiber to obtain a large-topology load vortex mode; on the other hand, the optical fiber mode coupler is also an output coupler, so the coupling efficiency is generally 10-50%, and the manufacturing difficulty and cost of the optical fiber mode coupler are obviously reduced. And the hollow fiber vortex beam amplifier can increase the effective refractive index difference of each approximate degenerate submodule in the LP module, inhibit the crosstalk among submodes, avoid the degradation of a vortex mode in the amplification process and simultaneously avoid the laser power loss during the conversion of an out-cavity mode.
Drawings
FIG. 1 is a schematic view of the overall structure of the apparatus of the present invention;
FIG. 2 is a schematic diagram of a single mode-hollow fiber mode coupler according to the present invention;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a schematic diagram of a single mode-spiral fiber mode coupler according to the present invention;
FIG. 5 is a cross-sectional view of FIG. 4;
FIG. 6 is a graph of effective refractive index versus core radius for each sub-mode of single mode and hollow core optical fibers;
FIG. 7 is a graph of simulation results for a single mode-hollow fiber mode coupler.
FIG. 8 is a graph of simulation results for a single mode-spiral fiber mode coupler.
Detailed Description
The invention is further illustrated by the following figures and examples.
Example 1
An ultrashort pulse vortex beam generating device described with reference to fig. 1 includes a mode-locked fiber laser loop 1 for generating ultrashort pulse vortex seed light and a vortex beam amplifier 2 for amplifying the ultrashort pulse vortex seed light. The mode-locked fiber laser loop 1 comprises a first pump laser 11, a first wavelength division multiplexer 12, a first gain fiber 13, a fiber mode coupler 3, a first polarization controller 14, a mode-locked device 15, a second polarization controller 16, a first optical isolator 17 and a first output coupler 18; the output of first pump laser 11 is connected with the input of first wavelength division multiplexer 12, first wavelength division multiplexer 12 is connected with optical fiber mode coupler 3's input through first gain optical fiber 13, optical fiber mode coupler 3's output is connected with first polarization controller 14's input, first polarization controller 14's output is connected with mode locking device 15's input through first opto-isolator 17, mode locking device 15's output loops through first output coupler 18 and second polarization controller 16 and links to each other with first wavelength division multiplexer 12's input and constitutes the annular chamber. The vortex beam amplifier 2 comprises a second optical fiber coupler 21, a second optical isolator 22, a second pump laser 23, a second wavelength division multiplexer 24 and a second gain optical fiber 25; the output end of the optical fiber mode coupler 3 is connected with a second gain optical fiber 25 through a second optical fiber coupler 21, a second optical isolator 22 and a second wavelength division multiplexer 24 in sequence; the output of the second pump laser 23 is connected to the input of a second wavelength division multiplexer 24.
Referring to fig. 2, the fiber mode coupler 3 is prepared by using a single mode fiber 31 and a hollow fiber 32, and firstly, the relationship between the effective refractive index of each sub-mode in the single mode fiber and the LP module of the hollow fiber and the fiber core radius of the fiber is calculated by using a fiber vector mode theory, as shown in fig. 4, fiber core parameters of the single mode fiber and the hollow fiber are determined according to phase matching conditions (that is, the corresponding mode effective refractive indexes of the single mode fiber and the hollow fiber are the same), and the fiber core radius of a standard fiber is adjusted by using a fiber pre-shrinking technology to meet the requirement of phase matching. Coupling the output light of the continuous fiber laser to the input end of the single mode fiber, heating and melting at high temperature, simultaneously stretching towards two sides, respectively monitoring the power of the output ends of the single mode fiber and the hollow fiber by using a computer, monitoring a splitting ratio curve, and controlling the preparation of the mode coupler. Finally, the biconical waveguide is formed in the heating area.
Referring to fig. 4, the phase matching points where the mode effective refractive indices of the single mode fiber and the hollow core fiber are the same can be selected in the figure. The single-mode-hollow beam mode coupler can enlarge the difference of the mode effective refractive index between the sub-modes, avoids the crosstalk between the sub-modes and is better used for an HE21、HE31And high order mode conversion.
In the prepared optical fiber mode coupler, the hollow optical fiber 32 comprises a core, an air layer and a cladding, wherein the radius of the core of the hollow optical fiber 32 is 8.5 μm, and the radius of the air layer is 2.55 μm. The single mode fiber 31 includes a core and a cladding, and the core of the single mode fiber 31 has a radius of 2.95 μm. The input and output optical field mode of the single mode fiber 31 is HE11Mode, the optical field mode output by the hollow fiber 32 is HE31And (5) molding.
In the mode-locked fiber laser loop 1, the first pump laser adopts a fiber coupling output semiconductor laser with the wavelength of 976-980nm, the light emitted by the first pump laser 11 is connected to the first gain fiber 13 through the first wavelength division multiplexer 12, is amplified by adopting an erbium-doped gain fiber and is connected to the fiber mode coupler 3, the output end of the single-mode fiber 31 is connected to the input end of the first wavelength division multiplexer 12 after being sequentially connected to the first polarization controller 14, the mode locking device 15, the first optical isolator 17, the first output coupler 18 and the second polarization controller 16 through an optical path to form a loop, the output end of the hollow fiber 32 forms an ultrashort pulse vortex seed optical wavelength with the wavelength of 1030-1064 nm, and is sequentially connected to the second fiber coupler 21, the second optical isolator 22, the second wavelength division multiplexer 24 and the second gain fiber 25 of the vortex beam amplifier 2, light emitted by the second pumping laser 23 is connected into the vortex beam amplifier 2 through the second wavelength division multiplexer 24, and ultrashort pulse vortex seed light is amplified and output through the pumped rare earth doped hollow gain fiber.
Referring to fig. 5, the power exchange process and the distribution of the cross-sectional mode field for mode conversion of a single mode-hollow fiber mode coupler are shown. It can be seen that the output mode of the fiber mode coupler is HE31Mode, wherein the coupling efficiency of the HE11 mode to the HE31 mode is 84%.
Example 2
The specific structure is similar to that of embodiment 1, except that the fiber mode coupler 3 is different from that of embodiment 1.
Referring to fig. 3, the fiber mode coupler 3 is prepared by using a single mode fiber 31 and a spiral fiber 33, and first, the relationship between the effective refractive index of each sub-mode in the single mode fiber and the LP module of the spiral fiber and the fiber core radius is calculated by using a fiber vector mode theory, the fiber core parameters of the single mode fiber and the spiral fiber are determined according to phase matching conditions (that is, the corresponding mode effective refractive indexes of the single mode fiber and the spiral fiber are the same), and the fiber core radius of the standard fiber is adjusted by using a pre-shrinking fiber technology to meet the requirement of phase matching. Coupling the output light of the continuous fiber laser to the input end of the single mode fiber, heating and melting at high temperature, simultaneously stretching towards two sides, respectively monitoring the power of the output ends of the single mode fiber and the spiral fiber by using a computer, monitoring a splitting ratio curve, and controlling the preparation of the mode coupler. Finally, the biconical waveguide is formed in the heating area.
In the prepared fiber mode coupler, the spiral fiber 33 comprises a core and a cladding, and the radius of the core of the spiral fiber 33 is 1.85 um. The single mode fiber 31 includes a core and a cladding, and the core of the single mode fiber 31 has a radius of 2.7 um. The input and output optical field mode of the single mode fiber 31 is HE11Mode, the optical field mode output by the helical fiber 32 is HE31And (5) molding.
In the mode-locked fiber laser loop 1, the first pump laser is a fiber coupled output semiconductor laser with a wavelength of 976- And the ultrashort pulse vortex seed light is amplified and output through the pumped rare earth doped hollow gain fiber.
Referring to fig. 6, the power exchange process and the distribution of the cross-sectional mode field for mode conversion of a single mode-helical fiber mode coupler are shown. It can be seen that the output mode of the fiber mode coupler is HE31Mode, wherein HE11Mode direction HE31The coupling efficiency of the mode is 82%.
Claims (9)
1. An ultrashort pulse vortex light beam generating device is characterized in that: the mode locking fiber laser device comprises a mode locking fiber laser loop (1) used for generating ultrashort pulse vortex seed light and a vortex beam amplifier (2) used for amplifying the ultrashort pulse vortex seed light, wherein an optical fiber mode coupler (3) used for converting light beams from a low-order mode to a high-order mode is arranged in the mode locking fiber laser loop (1), and the mode locking fiber laser loop (1) is connected with the input end of the vortex beam amplifier (2) through the optical fiber mode coupler (3).
2. The ultrashort pulse vortex beam generating device of claim 1, wherein: the optical fiber mode coupler (3) is of a biconical waveguide structure and is formed by melting and stretching a single mode optical fiber (31) and a hollow optical fiber (32) or a spiral optical fiber (33) through pre-shrinking fibers.
3. The ultrashort pulse vortex beam generating device of claim 1 or 2, wherein: the fiber mode coupler (3) is an HE of a single mode fiber (31)11HE of mode-oriented hollow fiber (32) or spiral fiber (33)31Mode conversion, and the optical field modes of the input and output ends of the single mode fiber (31) are HE11The optical field mode at the output end of the mode, hollow fiber (32) or spiral fiber (32) is HE31And (5) molding.
4. The ultrashort pulse vortex beam generating device of claim 1, wherein: the mode-locked fiber laser loop (1) further comprises a first pump laser (11), a first wavelength division multiplexer (12), a first gain fiber (13), a first polarization controller (14), a mode-locked device (15) and a second polarization controller (16); the output of first pump laser (11) is connected with the input of first wavelength division multiplexer (12), first wavelength division multiplexer (12) is connected through the input of first gain fiber (13) with optical fiber mode coupler (3), and the output of optical fiber mode coupler (3) is connected with the input of first polarization controller (14), the output of first polarization controller (14) is connected with the input of mode locking device (15), the output of mode locking device (15) links to each other through the input of second polarization controller (16) with first wavelength division multiplexer (12) and constitutes the annular chamber.
5. The ultrashort pulse vortex beam generating device of claim 4, wherein: a first optical isolator (17) for eliminating return light in a loop is connected between the first polarization controller (14) and the mode locking device (15); and a first output coupler (18) for monitoring the mode and polarization of the light beam in the loop is arranged between the mode locking device (15) and the second polarization controller (16).
6. The ultrashort pulse vortex beam generating device of claim 4, wherein: the first gain fiber (13) is a rare earth doped gain fiber.
7. The ultrashort pulse vortex beam generating device of claim 1, wherein: the vortex beam amplifier (2) comprises a second optical fiber coupler (21), a second optical isolator (22), a second pump laser (23), a second wavelength division multiplexer (24) and a second gain optical fiber (25); the output end of the optical fiber mode coupler (3) is connected with a second gain optical fiber (25) sequentially through a second optical fiber coupler (21), a second optical isolator (22) and a second wavelength division multiplexer (24); and the output end of the second pump laser (23) is connected with the input end of a second wavelength division multiplexer (24).
8. The ultrashort pulse vortex beam generating device of claim 7, wherein: the second gain fiber (25) is a rare earth doped hollow gain fiber.
9. The ultrashort pulse vortex beam generating device of claim 1, wherein: the wavelength of the ultrashort pulse vortex seed light is 1030-1064 nm wave band, 1310nm wave band or 1550nm wave band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110233228.5A CN113036584A (en) | 2021-03-02 | 2021-03-02 | Ultrashort pulse vortex light beam generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110233228.5A CN113036584A (en) | 2021-03-02 | 2021-03-02 | Ultrashort pulse vortex light beam generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113036584A true CN113036584A (en) | 2021-06-25 |
Family
ID=76465544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110233228.5A Pending CN113036584A (en) | 2021-03-02 | 2021-03-02 | Ultrashort pulse vortex light beam generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113036584A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725711A (en) * | 2021-08-25 | 2021-11-30 | 江苏科技大学 | Optical vortex optical fiber laser based on double vortex wave plates |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001118A (en) * | 2012-12-04 | 2013-03-27 | 广东汉唐量子光电科技有限公司 | Gain narrowing controlled all-fiber laser amplifier for high-power picosecond pulses |
| CN103969739A (en) * | 2013-01-28 | 2014-08-06 | 无锡万润光子技术有限公司 | Vortex optical fiber on basis of linear refractive index distribution and preparation method thereof |
| CN104865633A (en) * | 2015-05-08 | 2015-08-26 | 中国科学院西安光学精密机械研究所 | Microstructure sawtooth-shaped hollow core optical fiber |
| CN109100827A (en) * | 2018-07-13 | 2018-12-28 | 上海大学 | A kind of optical fiber and preparation method thereof kept for vortex beams transmission |
| CN109752790A (en) * | 2017-11-03 | 2019-05-14 | 桂林电子科技大学 | A kind of producible vortex light and the coaxial double wave guiding fiber of toroidal field and preparation method thereof |
-
2021
- 2021-03-02 CN CN202110233228.5A patent/CN113036584A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001118A (en) * | 2012-12-04 | 2013-03-27 | 广东汉唐量子光电科技有限公司 | Gain narrowing controlled all-fiber laser amplifier for high-power picosecond pulses |
| CN103969739A (en) * | 2013-01-28 | 2014-08-06 | 无锡万润光子技术有限公司 | Vortex optical fiber on basis of linear refractive index distribution and preparation method thereof |
| CN104865633A (en) * | 2015-05-08 | 2015-08-26 | 中国科学院西安光学精密机械研究所 | Microstructure sawtooth-shaped hollow core optical fiber |
| CN109752790A (en) * | 2017-11-03 | 2019-05-14 | 桂林电子科技大学 | A kind of producible vortex light and the coaxial double wave guiding fiber of toroidal field and preparation method thereof |
| CN109100827A (en) * | 2018-07-13 | 2018-12-28 | 上海大学 | A kind of optical fiber and preparation method thereof kept for vortex beams transmission |
Non-Patent Citations (1)
| Title |
|---|
| TENG WANG ET AL.: "Generation of Femtosecond Optical Vortex Beams in All-Fiber Mode-Locked Fiber Laser Using Mode Selective Coupler", 《JOURNAL OF LIGHTWAVE TECHNOLOGY》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725711A (en) * | 2021-08-25 | 2021-11-30 | 江苏科技大学 | Optical vortex optical fiber laser based on double vortex wave plates |
| CN113725711B (en) * | 2021-08-25 | 2022-11-08 | 江苏科技大学 | Optical vortex optical fiber laser based on double vortex wave plates |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106848823B (en) | 8-shaped cavity mode locking column vector fiber laser based on mode selection coupler | |
| Wang et al. | An efficient 4-kW level random fiber laser based on tandem-pumping scheme | |
| CN102967981A (en) | Super-continuous spectrum light source based on multicore photonic crystal fiber | |
| CN104319617A (en) | Laser device adjustable in bandwidth and central wavelength | |
| CN111509537B (en) | All-fiber ultrashort pulse mode-locked laser generation method and laser | |
| CN111490446A (en) | Dissipative soliton resonance fiber laser | |
| CN108233160A (en) | A kind of pulsed column vector optical fiber laser based on model selection coupler | |
| CN202995205U (en) | Multicore photonic crystal fiber based supercontinuum source | |
| CN106877121A (en) | Pulse width tuning laser based on light-operated Graphene Chirp Bragg grating | |
| CN206524516U (en) | A kind of 8 word chamber locked mode post vector optical fiber lasers based on model selection coupler | |
| CN216773786U (en) | Broadband tunable intermediate infrared all-fiber ultrashort pulse laser | |
| CN107946893A (en) | The saturable absorber device of gradual change multimode single mode structure based on microcavity built in single mode | |
| CN113036584A (en) | Ultrashort pulse vortex light beam generating device | |
| CN112490834A (en) | Mode-locking ytterbium-doped fiber laser based on multimode fiber eccentric fusion | |
| CN207884064U (en) | A kind of pulsed column vector optical fiber laser | |
| Sulaiman et al. | Ring microfiber coupler erbium-doped fiber laser analysis | |
| Chen et al. | Mode-locked pulse generation from an all-FMF ring laser cavity | |
| CN115632299A (en) | High-energy mode-locked fiber pulse laser | |
| CN215579525U (en) | All-fiber femtosecond seed laser based on large mode field fiber | |
| CN211265955U (en) | Adjustable ultra-high repetition frequency ultra-short pulse fiber laser | |
| CN110535022B (en) | Vortex optical mode-locking fiber laser based on four-wave mixing effect | |
| CN113937605A (en) | Multi-parameter tunable femtosecond pulse laser | |
| CN110556690B (en) | All-fiber vortex optical rotation mode-locking annular cavity laser | |
| CN110518443B (en) | Linear cavity mode-locked fiber laser with orbital angular momentum mode direct resonance | |
| Hammadi et al. | Multiwavelength erbium doped fiber laser based on microfiber Mach-Zehnder interferometer |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210625 |
|
| RJ01 | Rejection of invention patent application after publication |