CN105186271A - Transition metal sulfide saturable absorption mirror and mode locking fiber laser - Google Patents
Transition metal sulfide saturable absorption mirror and mode locking fiber laser Download PDFInfo
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- CN105186271A CN105186271A CN201510673320.8A CN201510673320A CN105186271A CN 105186271 A CN105186271 A CN 105186271A CN 201510673320 A CN201510673320 A CN 201510673320A CN 105186271 A CN105186271 A CN 105186271A
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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
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Abstract
The invention relates to the laser technical field, and especially relates to a transition metal sulfide saturable absorption mirror and a mode locking fiber laser; the transition metal sulfide saturable absorption mirror comprises a fiber, a transition metal sulfide film coated on an end face of the fiber, and a high reflective film coated on the transition metal sulfide film. The transition metal sulfide saturable absorption mirror is high in damage threshold, simple in structure, low in cost, high in reliability, and suitable for batch production; in addition, the mode locking fiber laser employing the transition metal sulfide saturable absorption mirror can realize all fiberization, is high in reliability, and suitable for accomplishment conversion.
Description
Technical field
The present invention relates to laser technology field, particularly relate to a kind of transient metal sulfide saturable absorbing mirror and mode locked fiber laser.
Background technology
Utilize passive mode locking technology to be a kind of effective way that fiber laser realizes ultrafast pulse output, and the key technology of passive mode locking needs to possess saturable absorption effect in resonant cavity of fibre-optical laser.At present, researcher has utilized multiple saturable absorption effect in fiber laser, obtain the output of passive mode locking ultrafast pulse.In general, in order to overcome the shortcoming of optical-fiber laser locked mode environment instability, researcher usually adopts semiconductor saturable absorbing mirror (SESAM) to realize fiber laser locked mode ultrafast pulse and exports.But, because commercial SESAM is expensive, complex manufacturing technology, saturable absorption narrow bandwidth, generally only other pulse of support picosecond output, and damage threshold is also lower, so be not suitable for the dynamics of the ultrafast fiber laser of comprehensive research yet.Therefore, with low cost, that technique is simple, high performance saturable absorber is the pursuit of ultrafast laser physical field always target is developed.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of transient metal sulfide saturable absorbing mirror and mode locked fiber laser, to solve the defect that commercial SESAM used in the prior art is expensive, complex manufacturing technology, reliability are low.The present invention is achieved in that
A kind of transient metal sulfide saturable absorbing mirror, comprises optical fiber, is plated in the transient metal sulfide film of described fiber end face, the highly reflecting films be plated on described transient metal sulfide film.
Further, described highly reflecting films are golden film.
Further, the material of described transient metal sulfide film is any one in tungsten sulfide, molybdenum sulfide, tungsten selenide and selenizing molybdenum.
A preparation method for transient metal sulfide saturable absorbing mirror, comprises the steps:
Steps A: cut by optical fiber, forms fiber end face;
Step B: the optical fiber after cutting and transient metal sulfide target are placed in vacuum chamber;
Step C: by the ionization of transient metal sulfide target material surface to produce transient metal sulfide plasma, and by plasma-deposited for described transient metal sulfide on described fiber end face, form transient metal sulfide film;
Step D: control sedimentation time and/or depositing temperature, make described transient metal sulfide film reach setting thickness;
Step e: plate highly reflecting films on described transient metal sulfide film.
Further, the material of described transient metal sulfide film is any one in tungsten sulfide, molybdenum sulfide, tungsten selenide and selenizing molybdenum.
Further, pulsed laser deposition is adopted in described step C.
A kind of mode locked fiber laser, comprising: semiconductor pump laser, optical coupling assembly, resonant cavity; Described resonant cavity comprises Active Optical Fiber, arbitrary transient metal sulfide saturable absorbing mirror as above, optical coupler;
The pump light that described semiconductor pump laser produces is coupled into described resonant cavity through described optical coupling assembly, and provides gain for described Active Optical Fiber, makes it produce laser;
Described transient metal sulfide saturable absorbing mirror is used for carrying out locked mode to described laser;
Described optical coupler is for exporting the laser after locked mode.
Further, described resonant cavity also comprises optical circulator; Described optical circulator comprises first end, the second end, the 3rd end;
Described laser enters described optical circulator through described first end, described transient metal sulfide saturable absorbing mirror is entered again through described second end, described optical circulator is returned through described transient metal sulfide saturable absorbing mirror modulation locked mode back reflection, then by described three-polar output.
Further, described resonant cavity also comprises:
Optical isolator, for making described laser one-way transmission;
Polarization Controller, for controlling the polarization state of described laser.
A kind of mode locked fiber laser, comprising: semiconductor pump laser, optical coupling assembly, resonant cavity; Described resonant cavity comprises Active Optical Fiber, arbitrary transient metal sulfide saturable absorbing mirror as above, dichroic mirror;
The pump light that described semiconductor pump laser produces is coupled into described resonant cavity through described optical coupling assembly, and provides gain for described Active Optical Fiber, makes it produce laser;
Described transient metal sulfide saturable absorbing mirror is used for carrying out locked mode to described laser;
Described dichroic mirror has high-permeability to described pump light, has highly reflective to described laser;
Described pump light enters described Active Optical Fiber by described dichroic mirror; Laser after locked mode is exported by described dichroic mirror.
Compared with prior art, this novel transition metal sulfide saturable absorbing mirror has high damage threshold, structure is simple, with low cost, reliability is high, be suitable for batch production, meanwhile, adopt the mode locked fiber laser of this transient metal sulfide saturable absorbing mirror to have all-fiber, high reliability and be suitable for the advantage of achievements conversion.
Accompanying drawing explanation
Fig. 1: the structural representation of the transient metal sulfide saturable absorbing mirror that the embodiment of the present invention provides;
Fig. 2: preparation method's schematic flow sheet of the transient metal sulfide saturable absorbing mirror that the embodiment of the present invention provides;
Fig. 3: the structural representation of a kind of mode locked fiber laser that the embodiment of the present invention provides;
Fig. 4: the cavity resonator structure schematic diagram of the another kind of mode locked fiber laser that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.
As shown in Figure 1, the present invention provide firstly a kind of transient metal sulfide saturable absorbing mirror 1.This saturable absorbing mirror 1 comprises optical fiber, is plated in the transient metal sulfide film 101 of fiber end face, the highly reflecting films 102 be plated on transient metal sulfide film 101.Highly reflecting films 102 can adopt the golden film with high reflectivity.Wherein, optical fiber can adopt monomode fiber or be mixed with the Active Optical Fiber of rare earth.The material of transient metal sulfide film 101 can adopt in tungsten sulfide, molybdenum sulfide, tungsten selenide and selenizing molybdenum any one.
Highly reflecting films 102 are equivalent to a high reflection mirror.The operation principle of this transient metal sulfide saturable absorbing mirror 1 is, it can be used as laser high reflection mirror providing modulation.When the laser in resonant cavity is by this transient metal sulfide saturable absorbing mirror 1 reflex time, laser can be modulated by transient metal sulfide saturable absorbing mirror 1, realizes locked mode.This transient metal sulfide saturable absorbing mirror 1 has high damage threshold, can be used as the speculum of light to light while carrying out wide-band modulation, can be used for the Primary Component that in laser system, pulse laser produces.
As shown in Figure 2, present invention also offers a kind of preparation method of transient metal sulfide saturable absorbing mirror 1, comprise the steps:
Steps A: cut by optical fiber, forms fiber end face.Cut by optical fiber cutter, should note during cutting guaranteeing that fiber end face is smooth.
Step B: the optical fiber after cutting and transient metal sulfide target are placed in vacuum chamber.Should note when optical fiber and transient metal sulfide target are placed in vacuum chamber keeping fiber end face to aim at transient metal sulfide target, to guarantee that the transient metal sulfide plasma ionized in subsequent step can be deposited on fiber end face well.
Step C: by the ionization of transient metal sulfide target material surface to produce transient metal sulfide plasma, and by plasma-deposited for transient metal sulfide on fiber end face, form transient metal sulfide film 101.
Step D: control sedimentation time and/or depositing temperature, make transient metal sulfide film 101 reach setting thickness.
Step e: plate highly reflecting films 102 on transient metal sulfide film 101.The method same with plating sulfide film can be adopted during plating highly reflecting films 102.
Describe known according to the above-mentioned structure to transient metal sulfide saturable absorbing mirror 1, when preparing this transient metal sulfide saturable absorbing mirror 1, optical fiber can be general single mode fiber, also can be the Active Optical Fiber mixing rare earth, meanwhile, the material of transient metal sulfide film 101 can adopt any one in tungsten sulfide, molybdenum sulfide and antimony selenide.During concrete enforcement, form plasma after pulsed laser deposition can be adopted in step C to be ionized by transient metal sulfide target material surface, and make plasma-deposited on fiber end face, form transient metal sulfide film 101.In deposition process, by controlling transient metal sulfide film 101 thickness that the parameter such as sedimentation time or depositing temperature can control to deposit, when transient metal sulfide film 101 thickness deposited reaches desired thickness, deposition can be stopped.
Traditional semiconductor saturable absorbing mirror 1 adopts chemical vapour deposition technique to prepare, and semi-conducting material needs to grow layer by layer, and every layer all needs accurate control, semiconductor saturable absorbing mirror 1 bandwidth only tens nanometers of preparation.And the present invention utilizes the method for pulsed laser deposition, preparation process is simple, and can be mass-produced, one piece of transient metal sulfide target can prepare thousands of pieces of transient metal sulfide saturable absorbing mirrors 1.Simultaneously, in deposition process, thickness and the uniformity of the transient metal sulfide film 101 deposited can be controlled by the temperature, time etc. controlling deposition, thus can be mass-produced, and making transient metal sulfide saturable absorbing mirror 1 specification of making consistent, transient metal sulfide saturable absorbing mirror 1 bandwidth prepared can be extended to infrared light from visible ray.
As shown in Figure 3, the invention provides a kind of mode locked fiber laser.This mode locked fiber laser comprises semiconductor pump laser 2, optical coupling assembly 3, resonant cavity.Wherein, resonant cavity comprises Active Optical Fiber 4, arbitrary transient metal sulfide saturable absorbing mirror 1 as above, optical coupler 6.Optical coupling assembly 3 can adopt wavelength division multiplexer.
The principle of this mode locked fiber laser is, the pump light that semiconductor pump laser 2 produces is coupled into resonant cavity through optical coupling assembly 3, and provides gain for Active Optical Fiber 4, makes it produce laser.Transient metal sulfide saturable absorbing mirror 1 pair of laser carries out locked mode.Specifically, saturable absorbing mirror 1 provides saturable absorption to modulate by transient metal sulfide film 101 to resonant cavity, realizes the locked mode to laser.Optical coupler 6 exports the laser after locked mode.
The resonant cavity of this mode locked fiber laser is ring cavity structure.This resonant cavity also comprises optical circulator 7, optical isolator 5 and Polarization Controller 8.Optical circulator 7 comprises first end, the second end and the 3rd end.Laser enters optical circulator 7 through first end, then enters transient metal sulfide saturable absorbing mirror 1 through the second end, modulates locked mode back reflection light echo circulator 7 through transient metal sulfide saturable absorbing mirror 1, then by three-polar output.Optical isolator 5 makes laser one-way transmission, and Polarization Controller 8 controls the polarization state of laser.
Present invention also offers another kind of mode locked fiber laser, comprising: semiconductor pump laser 2, optical coupling assembly 3, resonant cavity.Figure 4 shows that the resonant cavity of this mode locked fiber laser, this resonant cavity is linear cavity structure, comprises Active Optical Fiber 4, arbitrary transient metal sulfide saturable absorbing mirror 1 as above, dichroic mirror 9.Active Optical Fiber 4 combines together with the optical fiber on transient metal sulfide saturable absorbing mirror 1, and the optical fiber on metal sulfide saturable absorbing mirror 1 also directly can adopt Active Optical Fiber, as Active Optical Fiber 4.
The principle of this mode locked fiber laser is, the pump light that semiconductor pump laser 2 produces is coupled into resonant cavity through optical coupling assembly 3, and provides gain for Active Optical Fiber 4, makes it produce laser.Laser shakes back and forth in resonant cavity.Transient metal sulfide saturable absorbing mirror 1 pair of laser carries out locked mode.Specifically, saturable absorbing mirror 1 provides saturable absorption to modulate by transient metal sulfide film 101 to resonant cavity, realizes the locked mode to laser.The effect of highly reflecting films 102 is the speculums as a high reflectance, and to a certain extent for film provides protection.Dichroic mirror 9 pairs of pump lights have high-permeability, and have highly reflective to laser, pump light enters Active Optical Fiber 4 by dichroic mirror 9, and the laser after locked mode is exported by dichroic mirror 9.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a transient metal sulfide saturable absorbing mirror, is characterized in that, comprises optical fiber, is plated in the transient metal sulfide film of described fiber end face, the highly reflecting films be plated on described transient metal sulfide film.
2. transient metal sulfide saturable absorbing mirror as claimed in claim 1, it is characterized in that, described highly reflecting films are golden film.
3. transient metal sulfide saturable absorbing mirror as claimed in claim 1, is characterized in that, the material of described transient metal sulfide film is any one in tungsten sulfide, molybdenum sulfide, tungsten selenide and selenizing molybdenum.
4. a preparation method for transient metal sulfide saturable absorbing mirror, is characterized in that, comprises the steps:
Steps A: cut by optical fiber, forms fiber end face;
Step B: the optical fiber after cutting and transient metal sulfide target are placed in vacuum chamber;
Step C: by the ionization of transient metal sulfide target material surface to produce transient metal sulfide plasma, and by plasma-deposited for described transient metal sulfide on described fiber end face, form transient metal sulfide film;
Step D: control sedimentation time and/or depositing temperature, make described transient metal sulfide film reach setting thickness;
Step e: plate highly reflecting films on described transient metal sulfide film.
5. the preparation method of transient metal sulfide saturable absorbing mirror as claimed in claim 4, is characterized in that, the material of described transient metal sulfide film is any one in tungsten sulfide, molybdenum sulfide, tungsten selenide and selenizing molybdenum.
6. the preparation method of transient metal sulfide saturable absorbing mirror as claimed in claim 4, is characterized in that, adopt pulsed laser deposition in described step C.
7. a mode locked fiber laser, is characterized in that, comprising: semiconductor pump laser, optical coupling assembly, resonant cavity; Described resonant cavity comprises Active Optical Fiber, as transient metal sulfide saturable absorbing mirror, the optical coupler as described in arbitrary in claims 1 to 3;
The pump light that described semiconductor pump laser produces is coupled into described resonant cavity through described optical coupling assembly, and provides gain for described Active Optical Fiber, makes it produce laser;
Described transient metal sulfide saturable absorbing mirror is used for carrying out locked mode to described laser;
Described optical coupler is for exporting the laser after locked mode.
8. mode locked fiber laser as claimed in claim 7, it is characterized in that, described resonant cavity also comprises optical circulator; Described optical circulator comprises first end, the second end, the 3rd end;
Described laser enters described optical circulator through described first end, described transient metal sulfide saturable absorbing mirror is entered again through described second end, described optical circulator is returned through described transient metal sulfide saturable absorbing mirror modulation locked mode back reflection, then by described three-polar output.
9. mode locked fiber laser as claimed in claim 8, it is characterized in that, described resonant cavity also comprises:
Optical isolator, for making described laser one-way transmission;
Polarization Controller, for controlling the polarization state of described laser.
10. a mode locked fiber laser, is characterized in that, comprising: semiconductor pump laser, optical coupling assembly, resonant cavity; Described resonant cavity comprises Active Optical Fiber, as transient metal sulfide saturable absorbing mirror, the dichroic mirror as described in arbitrary in claims 1 to 3;
The pump light that described semiconductor pump laser produces is coupled into described resonant cavity through described optical coupling assembly, and provides gain for described Active Optical Fiber, makes it produce laser;
Described transient metal sulfide saturable absorbing mirror is used for carrying out locked mode to described laser;
Described dichroic mirror has high-permeability to described pump light, has highly reflective to described laser;
Described pump light enters described Active Optical Fiber by described dichroic mirror; Laser after locked mode is exported by described dichroic mirror.
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| CN201510673320.8A CN105186271A (en) | 2015-10-16 | 2015-10-16 | Transition metal sulfide saturable absorption mirror and mode locking fiber laser |
| PCT/CN2015/099374 WO2017063293A1 (en) | 2015-10-16 | 2015-12-29 | Transition metal sulfide saturable absorber mirror and mode-locked fiber laser |
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| CN201510673320.8A CN105186271A (en) | 2015-10-16 | 2015-10-16 | Transition metal sulfide saturable absorption mirror and mode locking fiber laser |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105896258A (en) * | 2016-06-16 | 2016-08-24 | 深圳大学 | Two-dimensional semiconductor saturable absorber mirror and preparation method thereof, and pulse fiber laser |
| CN106206254A (en) * | 2016-07-13 | 2016-12-07 | 合肥工业大学 | There is the preparation method of the large-area two-dimensional stratified material of excellent photoluminescence property |
| WO2017063293A1 (en) * | 2015-10-16 | 2017-04-20 | 深圳大学 | Transition metal sulfide saturable absorber mirror and mode-locked fiber laser |
| CN106684676A (en) * | 2016-12-07 | 2017-05-17 | 山东师范大学 | Saturable absorber device based on WS2 and preparation method and application of saturable absorber device |
| CN106911070A (en) * | 2017-05-08 | 2017-06-30 | 深圳大学 | A kind of two-dimensional material hetero-junctions saturable absorbing mirror and preparation method thereof |
| WO2017214925A1 (en) * | 2016-06-16 | 2017-12-21 | 深圳大学 | Two-dimensional semiconductor saturable absorber mirror and preparation method therefor, and pulse optical fibre laser |
| CN109038191A (en) * | 2018-08-18 | 2018-12-18 | 深圳华中科技大学研究院 | It is a kind of to compose limited Fourier mode locked fiber laser |
| CN109164050A (en) * | 2018-09-27 | 2019-01-08 | 电子科技大学 | The super sensitive gas sensor of Fabry-perot optical fiber based on tungsten selenide thin film channel structure |
| CN109842013A (en) * | 2019-04-16 | 2019-06-04 | 西北工业大学 | A kind of saturable absorption device, preparation method and fiber pulse laser |
| US20210359483A1 (en) * | 2020-05-13 | 2021-11-18 | National University Of Singapore | Visible and tunable ring cavity laser source |
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| US20090003391A1 (en) * | 2007-06-28 | 2009-01-01 | Shenping Li | Low-repetition-rate ring-cavity passively mode-locked fiber laser |
| CN104218443A (en) * | 2014-08-20 | 2014-12-17 | 鲍小志 | Two-dimensional stratified material based practical saturable absorber and production method thereof |
| CN105186271A (en) * | 2015-10-16 | 2015-12-23 | 深圳大学 | Transition metal sulfide saturable absorption mirror and mode locking fiber laser |
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2015
- 2015-10-16 CN CN201510673320.8A patent/CN105186271A/en active Pending
- 2015-12-29 WO PCT/CN2015/099374 patent/WO2017063293A1/en active Application Filing
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| CN102368584A (en) * | 2011-09-16 | 2012-03-07 | 北京工业大学 | Passive mode-locking ultrashort pulse all-fiber laser with waveband of 2.0 microns |
| CN104064951A (en) * | 2014-06-24 | 2014-09-24 | 北京工业大学 | Passive Q-switched laser based on nonlinear optical material molybdenum disulfide |
| CN204290028U (en) * | 2014-08-20 | 2015-04-22 | 鲍小志 | Based on the practical saturable absorption device of two-dimensional layer material |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017063293A1 (en) * | 2015-10-16 | 2017-04-20 | 深圳大学 | Transition metal sulfide saturable absorber mirror and mode-locked fiber laser |
| CN105896258A (en) * | 2016-06-16 | 2016-08-24 | 深圳大学 | Two-dimensional semiconductor saturable absorber mirror and preparation method thereof, and pulse fiber laser |
| WO2017214925A1 (en) * | 2016-06-16 | 2017-12-21 | 深圳大学 | Two-dimensional semiconductor saturable absorber mirror and preparation method therefor, and pulse optical fibre laser |
| CN106206254A (en) * | 2016-07-13 | 2016-12-07 | 合肥工业大学 | There is the preparation method of the large-area two-dimensional stratified material of excellent photoluminescence property |
| CN106684676A (en) * | 2016-12-07 | 2017-05-17 | 山东师范大学 | Saturable absorber device based on WS2 and preparation method and application of saturable absorber device |
| CN106911070A (en) * | 2017-05-08 | 2017-06-30 | 深圳大学 | A kind of two-dimensional material hetero-junctions saturable absorbing mirror and preparation method thereof |
| CN109038191A (en) * | 2018-08-18 | 2018-12-18 | 深圳华中科技大学研究院 | It is a kind of to compose limited Fourier mode locked fiber laser |
| CN109164050A (en) * | 2018-09-27 | 2019-01-08 | 电子科技大学 | The super sensitive gas sensor of Fabry-perot optical fiber based on tungsten selenide thin film channel structure |
| CN109842013A (en) * | 2019-04-16 | 2019-06-04 | 西北工业大学 | A kind of saturable absorption device, preparation method and fiber pulse laser |
| US20210359483A1 (en) * | 2020-05-13 | 2021-11-18 | National University Of Singapore | Visible and tunable ring cavity laser source |
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| WO2017063293A1 (en) | 2017-04-20 |
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Application publication date: 20151223 |