CN107768973A - It is a kind of can precision tuning Brillouin's multi-wavelength optical fiber laser - Google Patents
It is a kind of can precision tuning Brillouin's multi-wavelength optical fiber laser Download PDFInfo
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- CN107768973A CN107768973A CN201711122670.0A CN201711122670A CN107768973A CN 107768973 A CN107768973 A CN 107768973A CN 201711122670 A CN201711122670 A CN 201711122670A CN 107768973 A CN107768973 A CN 107768973A
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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
- H01S3/30—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
- H01S3/302—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects in an optical fibre
-
- 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
- H01S3/06729—Peculiar transverse fibre profile
- H01S3/06733—Fibre having more than one cladding
-
- 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
- H01S3/06791—Fibre ring lasers
-
- 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
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08086—Multiple-wavelength emission
-
- 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
-
- 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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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The invention discloses it is a kind of can precision tuning Brillouin's multi-wavelength optical fiber laser, ring resonator is connected between laser pumping source A and multi-wavelength generation cavity, the annular resonance intracavitary is provided with the vertical wave filter difficult to understand for tuning laser wavelength, and the MOPA structure for amplifying of increase input optical power is provided with the multi-wavelength generation cavity；MOPA structure for amplifying provides gain for highly nonlinear optical fiber, and the laser of the laser for inputting highly nonlinear optical fiber and highly nonlinear optical fiber output is amplified, and makes to excite the stokes light for producing more stages in highly nonlinear optical fiber, so as to export more wavelength.The laser of input is tuned by founding wave filter difficult to understand, it is possible to achieve precision tuning is carried out by temperature in tens nanometer ranges.
Description
Technical field
The present invention relates to field of lasers, and in particular to it is a kind of can precision tuning Brillouin's multi-wavelength optical fiber laser.
Background technology
Multi-wavelength optical fiber laser (MWFL) is a kind of in tens nanometers of spectral region while can to produce several, several
Ten the even optical fiber laser of individual optical maser wavelengths up to a hundred.In the last few years, with the continuous development of optical technology, people start to note
Anticipated in 2 μm infrared band multi-wavelength optical fiber laser in equipment test, optical fiber sensing network, optical microwave produce, wavelength-division
The great potential in the fields such as optical communication is multiplexed, thus becomes one of study hotspot.
At present, realize that the means of 2 mu m waveband multiwavelength laser can be largely classified into two classes, the first kind is to utilize doped fiber
Laser and comb filter, which combine, produces multi-wavelength, common comb filter such as Mach-Zehnder, lyot filter,
Special fiber grating etc., its principle is simple, and thinking is direct.Another kind of is to realize multi-wavelength using nonlinear effect, such as four ripples
Mixing, stimulated Raman scattering, cloth Li Yuan scatterings etc. are excited, they have the ability for producing new wavelength.It is but non-thread with respect to the first kind
Property effect produce multi-wavelength and determined by physical characteristic, without regulation, thus device architecture is simpler, and cavity loss is more
It is low.
At present, stimulated Brillouin scattering effect is being applied to the research of 2 mu m wavebands generation multiwavelength laser at home and abroad
It is also seldom.2013, Wang of the National University of Defense technology et al. reported a multi-wavelength Brillouin based on quartz single mode fiber
Laser, by the use of one section of 450m single-mode fiber as brillouin gain medium, finally realize the multiwavelength laser of 5 wavelength
Spectral line.Then, in 2014, Hu of Zhejiang University et al. proposes the changeable multi-wavelength hybrid gain Brillouin of wavelength first
Thulium-doped fiber laser.By the simple adjustment to unit status in laser structure, the wavelength interval of multiwavelength laser is exported
It can switch between single times of Brillouin shift and double Brillouin shift, corresponding frequency displacement is respectively 7.62GHz
(0.1nm) and 15.24GHz (0.2nm).For both output modes, in 20dB bandwidth, 7 and 11 have been respectively obtained
Root multiwavelength laser.It follows that the laser that can produce multiwavelength laser in 2 mu m wavebands has output wavelength a wide range of
The problem of precision tuning and multi-wavelength negligible amounts.
The content of the invention
It is an object of the invention to：There is provided it is a kind of can precision tuning Brillouin's multi-wavelength optical fiber laser, solve mesh
The preceding laser that multiwavelength laser can be produced in 2 mu m wavebands can not tuning operation wavelength and multi-wavelength negligible amounts with a wide range of precise
Technology net problem.
The technical solution adopted by the present invention is as follows：
It is a kind of can precision tuning Brillouin's multi-wavelength optical fiber laser, including laser pumping source A, the laser pumping source
A connection multi-wavelength generation cavities, ring resonator, the annular are also associated between the laser pumping source A and multi-wavelength generation cavity
The vertical wave filter difficult to understand for tuning laser wavelength is provided with resonator, increase input light is provided with the multi-wavelength generation cavity
The MOPA structure for amplifying of power.
Further, the ring resonator includes the pump combiner A for connecting the laser pumping source A, the pumping
Bundling device A is sequentially connected double clad thulium doped fiber A, coupler A, vertical wave filter difficult to understand, isolator, Polarization Controller A, the polarization
The controller A connections pump combiner A.
Further, the vertical wave filter difficult to understand includes connecting the inclined optical fiber grating A at 2 ends of the coupler A, described to incline
Oblique fiber grating A is sequentially connected polarization maintaining optical fibre and inclined optical fiber grating B, the inclined optical fiber grating B connections isolator.
Further, the multi-wavelength generation cavity includes coupler B, the coupler the B 1 end connection coupler A
2 ends, 2 ends of the coupler B are connected to spectrometer and Polarization Controller B, the Polarization Controller B connections circulator
A 1 end, 2 ends of the circulator A connect 1 end of the coupler B, and 3 ends of the circulator A connect MOPA structure for amplifying,
Highly nonlinear optical fiber, the MOPA structure for amplifying connection circulator B are provided with the MOPA structure for amplifying.
Further, the MOPA structure for amplifying includes laser pumping source B, and beam is closed in the laser pumping source B connections pumping
Device B 1 end, pump combiner B 1 end are connected to 3 ends of the circulator A, and 2 ends of the pump combiner B are sequentially connected
Beam is closed in double clad thulium doped fiber B, highly nonlinear optical fiber, double clad thulium doped fiber C, the double clad thulium doped fiber C connections pumping
Device C 2 ends, 1 end of the pump combiner C connect laser pumping source C and the circulator B respectively.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1.MOPA structure for amplifying provides gain for highly nonlinear optical fiber, and the laser and height that input highly nonlinear optical fiber is non-thread
Property optical fiber output laser be amplified, make to excite the stokes light for producing more stages in highly nonlinear optical fiber, so as to defeated
Go out more wavelength.
2. the laser of input is tuned by founding wave filter difficult to understand, it is possible to achieve pass through temperature in tens nanometer ranges
Carry out precision tuning.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the overall structure figure of the present invention.
Reference：1- laser pumping sources A, 2- ring resonator, 201- pump combiners A, 202- double clad mix thulium light
Fine A, 203- coupler A, 204- isolator, 205- Polarization Controllers A, 206- inclined optical fiber grating A, 207- polarization maintaining optical fibre,
208- inclined optical fiber gratings B, 3- multi-wavelength generation cavity, 301- couplers B, 302- Polarization Controller B, 303- circulator A, 304-
Highly nonlinear optical fiber, 305- circulators B, 306- laser pumping source B, 307- pump combiner B, 308- double clad thulium doped fiber B,
309- double clad thulium doped fiber C, 310- pump combiner C, 311- laser pumping source C, 4- spectrometers.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
The present invention is elaborated with reference to Fig. 1.
It is a kind of can precision tuning Brillouin's multi-wavelength optical fiber laser, including 793nm laser pumping sources A1 is described
793nm laser pumping sources A1 connections ring resonator 2, it is provided with the ring resonator 2 for the vertical of tuning laser wavelength
Wave filter difficult to understand, the ring resonator 2 connect multi-wavelength generation cavity 3, increase input light are provided with the multi-wavelength generation cavity 3
The MOPA structure for amplifying of power.
Concrete structure is as follows：
The 793nm laser pumping sources A1 connection pump combiners A201, the pump combiner A201 are sequentially connected double
207,45 ° of covering thulium doped fiber A202, coupler A203,45 ° of inclined optical fiber grating A206, polarization maintaining optical fibre inclined optical fiber gratings
B208, isolator 204, Polarization Controller A205, the Polarization Controller A205 connections pump combiner A201.
The coupler A203 of the ring resonator 22 ends connection coupler B301 1 end, the 2 of the coupler B301
End is connected to spectrometer 4 and Polarization Controller B302,1 end of the Polarization Controller B302 connection circulators A303, institute
2 ends for stating circulator A303 connect 1 end of the coupler B301, the 3 ends connection pump combiner of the circulator A303
B307 1 end, pump combiner B307 1 end are also connected with 793nm laser pumping sources B306, and the 2 of the pump combiner B307
End is sequentially connected double clad thulium doped fiber B308, highly nonlinear optical fiber 304, double clad thulium doped fiber C309, and the double clad is mixed
Thulium optical fiber C309 connection pump combiners C310 2 ends, 1 end of the pump combiner C310 connects 793nm laser pumps respectively
The Pu source C311 and circulator B305.
The operation principle of the present invention is as follows：
793nm laser pumping sources produce the continuous pump light that wavelength is 793nm, and the pump combiner A201 is by pump light
With the laser coupled after the transmission one week in the ring resonator 2 into double clad thulium doped fiber A202, covering thulium doped fiber A202
The gain fibre that functions as provide level structure to produce 2.0 mu m waveband lasers, covering thulium doped fiber A202 middle rare earth from
2.0 mu m waveband lasers are produced by energy level transition after son absorption 793nm pump lights；Caused vertical Austria of 2.0 mu m waveband laser input
Wave filter, the tunable characteristic of its transmission peak wavelength can be caused by changing the temperature of its polarization maintaining optical fibre 207；The isolator 204 is used for
Ensure the one-way transmission of endovenous laser, the polarization state of laser is varied and controlled in Polarization Controller A205, and coupler A203 is by 2.0 μm
Wave band of laser is divided into two parts, and a part is exported to multi-wavelength generation cavity 3, a part by 2 ends to be continued in ring resonator 2
Transmission；
Caused 793nm laser is coupled into double clad by pump combiner B307 and mixed by 793nm laser pumping sources B306
In thulium optical fiber B308；Caused 793nm laser is coupled into double-contracting by 793nm laser pumping sources C311 by pump combiner C310
In layer thulium doped fiber C309；MOPA structure for amplifying is formed, MOPA amplifications is carried out respectively at the both ends of highly nonlinear optical fiber 304, makes to swash
Light is sufficiently high by power during highly nonlinear optical fiber 304, and the highly nonlinear optical fiber 304 is used as brillouin gain medium, production
Raw Brillouin's non-linear gain, highly nonlinear optical fiber 304 can produce the one-level stokes light of higher-wattage, and produce two level this
The condition of lentor light is need to reach certain threshold value, i.e. the enough great talents of luminous power of one-level Stokes can inspire two level this support
Ke Si light, at this moment, one-level stokes light are equivalent to original Brillouin's pump light, and the role of two level stokes light is with regard to phase
When in original one-level stokes light.Under sufficiently strong pump power, such process can be in highly nonlinear optical fiber 304
In the generation that goes round and begins again, you can produce more wavelength output；Caused multiwavelength laser is returned to by circulator A303
Coupler B301, it is divided and is exported by coupler B301, the output situation of multi-wavelength spectral line is finally observed on spectrometer 4.
Claims (5)
1. it is a kind of can precision tuning Brillouin's multi-wavelength optical fiber laser, including laser pumping source A (1), the laser pump (ing)
Source A (1) connection multi-wavelength generation cavities (3), it is characterised in that：Between the laser pumping source A (1) and multi-wavelength generation cavity (3) also
Ring resonator (2) is connected with, the vertical wave filter difficult to understand for tuning laser wavelength, institute are provided with the ring resonator (2)
State the MOPA structure for amplifying that increase input optical power is provided with multi-wavelength generation cavity (3).
2. it is according to claim 1 it is a kind of can precision tuning Brillouin's multi-wavelength optical fiber laser, it is characterised in that：Institute
State pump combiner A (201), the pump combiner A that ring resonator (2) includes connecting the laser pumping source A (1)
(201) double clad thulium doped fiber A (202), coupler A (203), vertical wave filter difficult to understand, isolator (204), polarization control are sequentially connected
Device A (205) processed, the Polarization Controller A (205) connect the pump combiner A (201).
3. it is according to claim 2 it is a kind of can precision tuning Brillouin's multi-wavelength optical fiber laser, it is characterised in that：Institute
State inclined optical fiber grating A (206), the inclined optical fiber grating A that vertical wave filter difficult to understand includes connecting the ends of coupler A (203) 2
(206) polarization maintaining optical fibre (207) and inclined optical fiber grating B (208) are sequentially connected, described in inclined optical fiber grating B (208) connection
Isolator (204).
4. it is according to claim 3 it is a kind of can precision tuning Brillouin's multi-wavelength optical fiber laser, it is characterised in that：Institute
Stating multi-wavelength generation cavity (3) includes coupler B (301), and 1 end of the coupler B (301) connects the coupler A (203)
2 ends, 2 ends of the coupler B (301) are connected to spectrometer (4) and Polarization Controller B (302), the Polarization Controller
B (302) connection circulator A (303) 1 end, 2 ends of the circulator A (303) connect 1 end of the coupler B (301), institute
Circulator A (303) 3 ends connection MOPA structure for amplifying is stated, highly nonlinear optical fiber is provided with the MOPA structure for amplifying
(304), the MOPA structure for amplifying connection circulator B (305).
5. it is according to claim 4 it is a kind of can precision tuning Brillouin's multi-wavelength optical fiber laser, it is characterised in that：Institute
Stating MOPA structure for amplifying includes laser pumping source B (306), laser pumping source B (306) the connection pump combiner B (307)
1 end, pump combiner B (307) 1 end are connected to 3 ends of the circulator A (303), and the 2 of the pump combiner B (307)
End is sequentially connected double clad thulium doped fiber B (308), highly nonlinear optical fiber (304), double clad thulium doped fiber C (309), described double
Covering thulium doped fiber C (309) connection pump combiner C (310) 2 ends, 1 end of the pump combiner C (310) connect respectively
Laser pumping source C (311) and the circulator B (305).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711122670.0A CN107768973A (en) | 2017-11-14 | 2017-11-14 | It is a kind of can precision tuning Brillouin's multi-wavelength optical fiber laser |
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| CN201711122670.0A CN107768973A (en) | 2017-11-14 | 2017-11-14 | It is a kind of can precision tuning Brillouin's multi-wavelength optical fiber laser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879304A (en) * | 2018-07-24 | 2018-11-23 | 太原理工大学 | Fiber grating Brillouin optical fiber laser based on non-pump erbium-doped optical fiber ring |
| CN111711057A (en) * | 2019-11-28 | 2020-09-25 | 北京交通大学 | Synchronous spectrum-overlapped multi-wavelength pulse laser |
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| CN202333431U (en) * | 2011-11-29 | 2012-07-11 | 中国计量学院 | 22GHz-gap multi-wavelength Brillouin circular cavity optical fiber laser |
| CN103022866A (en) * | 2012-12-17 | 2013-04-03 | 北京化工大学 | Modulated oscillator power amplifier (MOPA) type random fiber optic laser device |
| US8494014B2 (en) * | 2011-04-08 | 2013-07-23 | Auckland Uniservices Limited | Laser device |
| CN103944056A (en) * | 2014-04-02 | 2014-07-23 | 中国电子科技集团公司第二十六研究所 | Acoustic-optical Q pulse modulation optical fiber laser device of MOPA structure |
| CN105140762A (en) * | 2015-07-30 | 2015-12-09 | 深圳市欧凌镭射科技有限公司 | Pulse fiber laser employing semiconductor laser seed source |
| CN105140761A (en) * | 2015-02-16 | 2015-12-09 | 深圳市欧凌镭射科技有限公司 | Narrow pulse fiber laser device |
| CN105932526A (en) * | 2016-07-18 | 2016-09-07 | 电子科技大学 | Medium-infrared fiber laser based on all-fiber Lyot filter structure |
| CN106785835A (en) * | 2016-12-14 | 2017-05-31 | 电子科技大学 | The infrared super continuous laser transmitter of ultra wide band in a kind of all -fiber |
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2017
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| US8494014B2 (en) * | 2011-04-08 | 2013-07-23 | Auckland Uniservices Limited | Laser device |
| CN202333431U (en) * | 2011-11-29 | 2012-07-11 | 中国计量学院 | 22GHz-gap multi-wavelength Brillouin circular cavity optical fiber laser |
| CN103022866A (en) * | 2012-12-17 | 2013-04-03 | 北京化工大学 | Modulated oscillator power amplifier (MOPA) type random fiber optic laser device |
| CN103944056A (en) * | 2014-04-02 | 2014-07-23 | 中国电子科技集团公司第二十六研究所 | Acoustic-optical Q pulse modulation optical fiber laser device of MOPA structure |
| CN105140761A (en) * | 2015-02-16 | 2015-12-09 | 深圳市欧凌镭射科技有限公司 | Narrow pulse fiber laser device |
| CN105140762A (en) * | 2015-07-30 | 2015-12-09 | 深圳市欧凌镭射科技有限公司 | Pulse fiber laser employing semiconductor laser seed source |
| CN105932526A (en) * | 2016-07-18 | 2016-09-07 | 电子科技大学 | Medium-infrared fiber laser based on all-fiber Lyot filter structure |
| CN106785835A (en) * | 2016-12-14 | 2017-05-31 | 电子科技大学 | The infrared super continuous laser transmitter of ultra wide band in a kind of all -fiber |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879304A (en) * | 2018-07-24 | 2018-11-23 | 太原理工大学 | Fiber grating Brillouin optical fiber laser based on non-pump erbium-doped optical fiber ring |
| CN111711057A (en) * | 2019-11-28 | 2020-09-25 | 北京交通大学 | Synchronous spectrum-overlapped multi-wavelength pulse laser |
| CN111711057B (en) * | 2019-11-28 | 2021-08-24 | 北京交通大学 | Synchronous spectrum-overlapped multi-wavelength pulse laser |
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Application publication date: 20180306 |