CN103022869B - Passive mode-locking guide gain-modulated dual-wavelength pulse fiber laser - Google Patents
Passive mode-locking guide gain-modulated dual-wavelength pulse fiber laser Download PDFInfo
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- CN103022869B CN103022869B CN201210589827.1A CN201210589827A CN103022869B CN 103022869 B CN103022869 B CN 103022869B CN 201210589827 A CN201210589827 A CN 201210589827A CN 103022869 B CN103022869 B CN 103022869B
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- 239000000835 fiber Substances 0.000 title claims abstract description 61
- 239000013307 optical fiber Substances 0.000 claims abstract description 62
- 239000004065 semiconductor Substances 0.000 claims abstract description 38
- 238000005086 pumping Methods 0.000 claims abstract description 28
- 239000005371 ZBLAN Substances 0.000 claims abstract description 14
- 230000010287 polarization Effects 0.000 claims abstract description 11
- 239000006096 absorbing agent Substances 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 230000009977 dual effect Effects 0.000 claims description 11
- 230000005855 radiation Effects 0.000 claims description 4
- 230000005472 transition radiation Effects 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 9
- 230000008878 coupling Effects 0.000 abstract description 7
- 238000010168 coupling process Methods 0.000 abstract description 7
- 238000005859 coupling reaction Methods 0.000 abstract description 7
- 238000002310 reflectometry Methods 0.000 abstract 2
- 238000002834 transmittance Methods 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 9
- 230000000737 periodic effect Effects 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention provides a passive mode-locking guide gain-modulated dual-wavelength pulse fiber laser, which comprises a pumping source for generating continuous pumping light, a polarization beam combiner for combining pumping light, a high-transmittance high-reflectivity laser for the pumping light and a high-reflectivity high-Dichroic mirror for guiding resonant laser, coupling lens, semiconductor saturable absorber mirror, and Ho-doped mirror3+Or Er3+The optical fiber comprises a ZBLAN optical fiber, a Bragg fiber grating, two chirped fiber gratings and an output end, wherein the pumping source adopts an LD pumping source or a semiconductor laser pumping source; the coupling lens is used for coupling the generated pump light into the Ho-doped light3+Or Er3+ZBLAN fiber; the dichroic mirror and the optical fiber form an included angle of 45 degrees; the semiconductor saturable absorption mirror and the doped Ho3+Or Er3+The ZBLAN optical fiber is horizontally arranged and forms an included angle of 45 degrees with the dichroic mirror.
Description
Technical field
The invention belongs to mid-infrared laser technical field, particularly a kind of dual wavelength pulse optical fiber laser of passive mode locking guiding gain modulation.
background technology
Wavelength is that the middle pulsed infrared laser light source of 2 ~ 5 μ m has important application at aspects such as medical treatment (laser micro-hurt operation), national defence (laser countermeasure (s) guidance) and atmospheric communications.Fiber laser has that laser threshold is low, output beam quality good, conversion efficiency is high, pliability and flexibility good, be easy to the remarkable advantages such as integrated, therefore in development, infrared pulse fiber laser has important scientific meaning and using value.The mode that realizes at present fiber pulse laser mainly contains three kinds: 1. gain modulation, 2. adjust Q(to comprise and initiatively adjust Q and passive Q-adjusted), 3. locked mode (comprising active mode locking and passive mode locking).Gain modulation mode is, by the mode of pulse pump, the population of energy level in laser transition is carried out to periodic modulation, realize the pulse output of laser, but which need to be carried out pulse modulation to pump laser, easily damages pump laser and fiber end face.Adjust Q mode to be mainly used in realizing the pulse laser of ns magnitude, locked mode mode is generally used for the ultra-short pulse laser of realizing ps and even fs magnitude.At present, the research of infrared pulse optical-fiber laser mostly concentrates on the pulse that realizes single wavelength, and for practical requirement, the research of dual wavelength and even multi-Wavelength Pulses optical-fiber laser has obtained people's attention.Recently, report by initiatively adjusting Q and initiatively adjusting the mode of Q guiding gain modulation to realize pulsed infrared laser in dual wavelength, but the modulation crystal of initiatively adjusting Q to introduce makes the method complex structure, and make fiber laser lost intrinsic flexibly, the advantage such as compact, volume is little, cost is also very expensive.
Summary of the invention
The present invention is to achieve these goals by the following technical solutions:
A kind of dual wavelength pulse optical fiber laser of passive mode locking guiding gain modulation, it is characterized in that: comprise pumping source (1) for producing continuous pump light, for the polarization beam combiner to pumping combiner (2), thoroughly high to pump light, high anti-to laser, for guide resonant laser light dichroic mirror (3), coupled lens (4), semiconductor saturable absorbing mirror (5), mix Ho
3+or Er
3+zBLAN optical fiber (7) and Fiber Bragg Grating FBG (6), the first chirped fiber grating (8), the second chirped fiber grating (9) and output (10), described pumping source (1) adopts LD pumping source; Described coupled lens (4) is mixed Ho described in the pump light of generation is coupled into
3+or Er
3+zBLAN optical fiber (7) in; Described dichroic mirror (3) is 45 degree angles with optical fiber; Described semiconductor saturable absorbing mirror (5) with described in mix Ho
3+or Er
3+zBLAN optical fiber (7) horizontal positioned, be simultaneously 45 degree angles with dichroic mirror (3); Described in being scribed at, described Fiber Bragg Grating FBG (6) and the first chirped fiber grating (8) mix Ho
3+or Er
3+zBLAN optical fiber (7) upper, form a laserresonator; The described Ho that mixes
3+or Er
3+zBLAN optical fiber (7) on the second chirped fiber grating (9) and semiconductor saturable absorbing mirror (5) form another laserresonator.
The dual wavelength pulse optical fiber laser of passive mode locking guiding gain modulation according to claim 1, is characterized in that: when described LD pumping source wavelength is 975 nm, adopts and mix Er
3+zBLAN optical fiber; What LD pumping source wavelength adopted during for 1150 nm is to mix Ho
3+zBLAN optical fiber.
In technique scheme, when Ho is mixed in employing
3+when optical fiber:
If 3.0 mum wavelength laser are carried out to locked mode; the second chirped fiber grating (9) and semiconductor saturable absorbing mirror (5) are the laserresonators of 3.0 mum wavelengths, and Fiber Bragg Grating FBG (6) and the first chirped fiber grating (8) are the laserresonators of 2.1 mum wavelengths;
If 2.1 mum wavelength laser are carried out to locked mode, the second chirped fiber grating (9) and semiconductor saturable absorbing mirror (5) are the laserresonators of 2.1 mum wavelengths, and Fiber Bragg Grating FBG (6) and the first chirped fiber grating (8) are the laserresonators of 3.0 mum wavelengths;
Mix Er
3+when ZBLAN optical fiber:
If 2.7 mum wavelength laser are carried out to locked mode, the second chirped fiber grating (9) and semiconductor saturable absorbing mirror (5) are the laserresonators of 2.7 mum wavelengths, and Fiber Bragg Grating FBG (6) and the first chirped fiber grating (8) are the laserresonators of 1.6 mum wavelengths;
If 1.6 mum wavelength laser are carried out to locked mode, the second chirped fiber grating (9) and semiconductor saturable absorbing mirror (5) are the laserresonators of 1.6 mum wavelengths, and Fiber Bragg Grating FBG (6) and the first chirped fiber grating (8) are the laserresonators of 2.7 mum wavelengths.
In technique scheme, the described Ho that mixes
3+or Er
3+zBLAN optical fiber (7) in,
Ho
3+the energy level transition of ion is the transition radiation of 2.1 μ m and 3.0 mum wavelengths, produces the pulsed laser radiation of two wavelength simultaneously.
Er
3+the energy level transition of ion is the transition radiation of 1.6 μ m and 2.7 mum wavelengths, produces the pulsed laser radiation of two wavelength simultaneously.
In technique scheme, described semiconductor saturable absorbing mirror as saturable absorber to mixing Ho
3+the laser medium wavelength that ZBLAN optical fiber forms as gain fibre is that the laser of 2.1 μ m or 3.0 μ m carries out locked mode, and its cascade laser is carried out to gain modulation, produces the pulse laser of 3.0 μ m and 2.1 μ m;
Or described semiconductor saturable absorbing mirror as saturable absorber to mixing Er
3+the laser medium wavelength that ZBLAN optical fiber forms as gain fibre is that the laser of 1.6 μ m or 2.7 μ m carries out locked mode, and its cascade laser is carried out to gain modulation, produces the pulse laser of 2.7 μ m and 1.6 μ m.
The invention has the beneficial effects as follows:
One, avoid traditional gain modulation, initiatively adjusted in Q and locked mode method, need to carry out pulse modulation to pump light, and then may cause the damage of pumping source and fiber end face, thereby and used external tune Q or locked mode device to reduce the problems such as device flexibility.
Two, utilize new pulse generation mechanism, realized the double-wavelength pulse output of 2 ~ 3 mu m wavebands, avoided the narrower shortcoming of traditional saturable absorber operation wavelength.
Three, device is portable and can integrated level high, is conducive to practical application.
Brief description of the drawings
Fig. 1 is structure chart of the present invention;
Fig. 2 is for mixing Ho
3+zBLAN energy level schematic diagram;
Fig. 3 mixes Er
3+zBLAN energy level schematic diagram;
1 is that pumping source, 2 is that polarization beam combiner, 3 is that dichroic mirror, 4 is that coupled lens, 5 is that semiconductor saturable absorbing mirror (SESAM1), 6 is that Fiber Bragg Grating FBG, 7 is for mixing Ho
3+or Er
3+zBLAN optical fiber, 8 be that the first chirped fiber grating, 9 is that the second chirped fiber grating, 10 is for output.
Embodiment
To 3.0 μ m locked modes:
Pumping source 1 adopts the LD of 1150 nm, and dichroic mirror 3 is 45 degree angles with optical fiber, thoroughly high to pump light, high anti-to resonant laser light, for guide laser.Coupled lens 4, by pump light coupled into optical fibres, collimates optical fiber left side emitting laser.Semiconductor saturable absorbing mirror (SESAM1), for the 3 μ m laser mode lockings to the output of left end optical fiber, simultaneously as end face of 3 μ m laserresonators, for resonant cavity provides feedback.Fiber Bragg Grating FBG 6 and the first chirped fiber grating 8 form the resonant cavity of 2.1 μ m laser, and 8 also carry out dispersion compensation the output coupling as 2.1 μ m laser to 2.1 μ m laser simultaneously.Mix Ho
3+two end faces of ZBLAN optical fiber are all cut 8 degree angles.The second chirped fiber grating 9, the other end of formation 3 μ m laserresonators, simultaneously to 3 μ m laser dispersion compensations.
To 2.1 μ m locked modes:
Pumping source 1 adopts the LD of 1150 nm, and polarization beam combiner 2 is for to pumping combiner.Dichroic mirror 3, is 45 degree angles with optical fiber, thoroughly high to pump light, high anti-to resonant laser light, for guide laser.Coupled lens 4, by pump light coupled into optical fibres, collimates optical fiber left side emitting laser.Semiconductor saturable absorbing mirror (SESAM2) 5, for the 2.1 μ m laser mode lockings to the output of left end optical fiber, simultaneously as end face of 2.1 μ m laserresonators, for resonant cavity provides feedback.Fiber Bragg Grating FBG 6, the first chirped fiber gratings 8 form the resonant cavity of 3 μ m laser, and 8 also carry out dispersion compensation the output coupling as 3 μ m laser to 3 μ m laser simultaneously.Mix Ho
3+two end faces of ZBLAN optical fiber are all cut 8 degree angles.The second chirped fiber grating 9, the other end of formation 2.1 μ m laserresonators, simultaneously to 2.1 μ m laser dispersion compensations.
Experimental principle:
Mix Ho
3+zBLAN energy level schematic diagram, as shown in Figure 2,
To 3.0 μ m locked modes:
When adopting the SESAM1(can be to 3 μ m laser saturable absorption) time
Working method is as follows:
The continuous pump light that 1150 nm LD 1 are produced is coupled into and is mixed Ho by polarization beam combiner 2 and lens 4
3+zBLAN(fluoride) in optical fiber 7, along with the increase of pump power, in the resonant cavity of the second chirped fiber grating 9 and semiconductor saturable absorbing mirror (SESAM1) 5 compositions, produced 3 μ m continuous laser (corresponding to
5i
6→
5i
7the transition of energy level), by the saturable absorption effect of semiconductor saturable absorbing mirror (SESAM1) 5, to 3 μ m continuous laser passive modulations, produce the Mode-locked laser of 3 μ m, its pulse period is determined by cavity length, the second chirped fiber grating 9 carries out dispersion compensation to the Mode-locked laser of 3 μ m again simultaneously, and it is compressed.Now 3 μ m mode locking pulse light are right again
5i
7→
5i
8inverted population carry out periodic modulation, right
5i
7→
5i
8the corresponding radiant light of energy level transition carries out gain modulation, thereby produce the gain modulation pulse laser that wavelength is 2.1 μ m in the resonant cavity that Fiber Bragg Grating FBG 6 and the first chirped fiber grating 8 form, dispersion compensation is carried out in 8 pairs of 2.1 μ m pulses simultaneously, it is compressed, and is finally the pulse laser of 3 μ m and 2.1 μ m by 10 while of output output wavelength.
To 2.1 μ m locked modes:
When adopting the SESAM2(can be to 2.1 μ m laser saturable absorption)
Working method is as follows:
The continuous pump light that 1150 nm LD 1 are produced is coupled into and is mixed Ho by polarization beam combiner 2 and lens 4
3+zBLAN(fluoride) in optical fiber 7, along with the increase of pump power, in the resonant cavity of the second chirped fiber grating 9 and semiconductor saturable absorbing mirror (SESAM2) 5 compositions, produced 2.1 μ m continuous laser (corresponding to
5i
7→
5i
8the transition of energy level), by the saturable absorption effect of semiconductor saturable absorbing mirror (SESAM2) 5, to 2.1 μ m continuous laser passive modulations, produce the Mode-locked laser of 2.1 μ m, its pulse period is determined by cavity length, the second chirped fiber grating 9 carries out dispersion compensation to the Mode-locked laser of 2.1 μ m again simultaneously, and it is compressed.Now 2.1 μ m mode locking pulse light are right again
5i
6→
5i
7inverted population carry out periodic modulation, right
5i
6→
5i
7the corresponding radiant light of energy level transition carries out gain modulation, thereby produce the gain modulation pulse laser that wavelength is 3.0 μ m in the resonant cavity that Fiber Bragg Grating FBG 6 and the first chirped fiber grating 8 form, dispersion compensation is carried out in 8 pairs of 3.0 μ m pulses simultaneously, it is compressed, and is finally the pulse laser of 3 μ m and 2.1 μ m by 10 while of output output wavelength.
In like manner mixing Ho
3+zBLAN optical fiber changes into mixes Er
3+zBLAN optical fiber, is described below:
To 2.7 μ m locked modes:
Adopt the semiconductor laser of 975 nm, as pumping source 1.Polarization beam combiner 2, for to pumping combiner.Dichroic mirror 3, thoroughly high to pump light, high anti-to resonant laser light.Coupled lens 4, by pump light coupled into optical fibres, collimates optical fiber left side emitting laser.Semiconductor saturable absorbing mirror (SESAM3), for the 2.7 μ m laser mode lockings to the output of left end optical fiber, simultaneously as end face of 2.7 μ m laserresonators, for resonant cavity provides feedback.Fiber Bragg Grating FBG 6 and the first chirped fiber grating 8 form the resonant cavity of 1.6 μ m laser, and 8 also carry out dispersion compensation the output coupling as 1.6 μ m laser to 1.6 μ m laser simultaneously.Mix Er
3+two end faces of ZBLAN optical fiber are all cut 8 degree angles.The second chirped fiber grating 9, the other end of formation 2.7 μ m laserresonators, simultaneously to 2.7 μ m laser dispersion compensations.
To 1.6 μ m locked modes:
Adopt the semiconductor laser of 975 nm, as pumping source 1.Polarization beam combiner 2, for to pumping combiner.Dichroic mirror 3, thoroughly high to pump light, high anti-to resonant laser light.Coupled lens 4, by pump light coupled into optical fibres, collimates optical fiber left side emitting laser.Semiconductor saturable absorbing mirror (SESAM4) 5 is for the 1.6 μ m laser mode lockings to the output of left end optical fiber, simultaneously as end face of 1.6 μ m laserresonators, for resonant cavity provides feedback.Fiber Bragg Grating FBG 6 and the first chirped fiber grating 8 form the resonant cavity of 2.7 μ m laser, and 8 also carry out dispersion compensation the output coupling as 2.7 μ m laser to 2.7 μ m laser simultaneously.Mix Er
3+two end faces of ZBLAN optical fiber are all cut 8 degree.The second chirped fiber grating 9, the other end of formation 1.6 μ m laserresonators, simultaneously to 1.6 μ m laser dispersion compensations.
Experimental principle:
Mix Er
3+zBLAN energy level schematic diagram as shown in Figure 3,
To 2.7 μ m locked modes:
When adopting the SESAM3(can be to 2.7 μ m laser saturable absorption) time,
Working method is as follows:
The continuous pump light that 975 nm semiconductor lasers 1 are produced is coupled into and is mixed Er by polarization beam combiner 2 and lens 4
3+zBLAN(fluoride) in optical fiber 7, along with the increase of pump power, in the resonant cavity of the second chirped fiber grating 9 and semiconductor saturable absorbing mirror (SESAM3) 5 compositions, produced 2.7 μ m continuous laser (corresponding to
4i
11/2→
4i
13/2the transition of energy level), by the saturable absorption effect of semiconductor saturable absorbing mirror (SESAM3) 5, to 2.7 μ m continuous laser passive modulations, produce the Mode-locked laser of 2.7 μ m, its pulse period is determined by cavity length, the second chirped fiber grating 9 carries out dispersion compensation to the Mode-locked laser of 2.7 μ m again simultaneously, and it is compressed.Now 2.7 μ m mode locking pulse light are right again
4i
13/2→
4i
15/2inverted population carry out periodic modulation, right
4i
13/2→
4i
15/2the corresponding radiant light of energy level transition carries out gain modulation, thereby produce the gain modulation pulse laser that wavelength is 1.6 μ m in the resonant cavity that Fiber Bragg Grating FBG 6 and the first chirped fiber grating 8 form, dispersion compensation is carried out in 8 pairs of 1.6 μ m pulses simultaneously, it is compressed, and is finally the pulse laser of 1.6 μ m and 2.7 μ m by 10 while of output output wavelength.
To 1.6 μ m locked modes:
When adopting the SESAM4(can be to 1.6 μ m laser saturable absorption) time,
Working method is as follows:
The continuous pump light that 975 nm semiconductor lasers 1 are produced is coupled into and is mixed Er by polarization beam combiner 2 and lens 4
3+zBLAN(fluoride) in optical fiber 7, along with the increase of pump power, in the resonant cavity of the second chirped fiber grating 9 and semiconductor saturable absorbing mirror (SESAM4) 5 compositions, produced 1.6 μ m continuous laser (corresponding to
4i
13/2→
4i
15/2the transition of energy level), by the saturable absorption effect of semiconductor saturable absorbing mirror (SESAM4) 5, to 1.6 μ m continuous laser passive modulations, produce the Mode-locked laser of 1.6 μ m, its pulse period is determined by cavity length, the second chirped fiber grating 9 carries out dispersion compensation to the Mode-locked laser of 1.6 μ m again simultaneously, and it is compressed.Now 1.6 μ m mode locking pulse light are right again
4i
11/2→
4i
13/2inverted population carry out periodic modulation, right
4i
11/2→
4i
13/2the corresponding radiant light of energy level transition carries out gain modulation, thereby produce the gain modulation pulse laser that wavelength is 2.7 μ m in the resonant cavity that Fiber Bragg Grating FBG 6 and the first chirped fiber 8 form, dispersion compensation is carried out in 8 pairs of 2.7 μ m pulses simultaneously, it is compressed, and is finally the pulse laser of 1.6 μ m and 2.7 μ m by 10 while of output output wavelength.
Claims (5)
1. the dual wavelength pulse optical fiber laser of a passive mode locking guiding gain modulation, it is characterized in that: comprise pumping source (1) for producing continuous pump light, for the polarization beam combiner to pumping combiner (2), thoroughly high to pump light, high anti-to laser, for guide resonant laser light dichroic mirror (3), coupled lens (4), semiconductor saturable absorbing mirror (5), mix Ho
3+or Er
3+zBLAN optical fiber (7) and Fiber Bragg Grating FBG (6), the first chirped fiber grating (8), the second chirped fiber grating (9) and output (10), described pumping source (1) adopts LD pumping source; Described coupled lens (4) is mixed Ho described in the pump light of generation is coupled into
3+or Er
3+zBLAN optical fiber (7) in; Described dichroic mirror (3) is 45 degree angles with optical fiber; Described semiconductor saturable absorbing mirror (5) with described in mix Ho
3+or Er
3+zBLAN optical fiber (7) horizontal positioned, be simultaneously 45 degree angles with dichroic mirror (3); Described in being scribed at, described Fiber Bragg Grating FBG (6) and the first chirped fiber grating (8) mix Ho
3+or Er
3+zBLAN optical fiber (7) upper, form a laserresonator; The described Ho that mixes
3+or Er
3+zBLAN optical fiber (7) on the second chirped fiber grating (9) and semiconductor saturable absorbing mirror (5) form another laserresonator.
2. the dual wavelength pulse optical fiber laser of passive mode locking guiding gain modulation according to claim 1, is characterized in that: when described LD pumping source wavelength is 975 nm, adopts and mix Er
3+zBLAN optical fiber; What LD pumping source wavelength adopted during for 1150 nm is to mix Ho
3+zBLAN optical fiber.
3. the dual wavelength pulse optical fiber laser of passive mode locking guiding gain modulation according to claim 1, is characterized in that:
When Ho is mixed in employing
3+when ZBLAN optical fiber:
If 3.0 mum wavelength laser are carried out to locked mode; the second chirped fiber grating (9) and semiconductor saturable absorbing mirror (5) are the laserresonators of 3.0 mum wavelengths, and Fiber Bragg Grating FBG (6) and the first chirped fiber grating (8) are the laserresonators of 2.1 mum wavelengths;
If 2.1 mum wavelength laser are carried out to locked mode, the second chirped fiber grating (9) and semiconductor saturable absorbing mirror (5) are the laserresonators of 2.1 mum wavelengths, and Fiber Bragg Grating FBG (6) and the first chirped fiber grating (8) are the laserresonators of 3.0 mum wavelengths;
When Er is mixed in employing
3+when ZBLAN optical fiber:
If 2.7 mum wavelength laser are carried out to locked mode, the second chirped fiber grating (9) and semiconductor saturable absorbing mirror (5) are the laserresonators of 2.7 mum wavelengths, and Fiber Bragg Grating FBG (6) and the first chirped fiber grating (8) are the laserresonators of 1.6 mum wavelengths;
If 1.6 mum wavelength laser are carried out to locked mode, the second chirped fiber grating (9) and semiconductor saturable absorbing mirror (5) are the laserresonators of 1.6 mum wavelengths, and Fiber Bragg Grating FBG (6) and the first chirped fiber grating (8) are the laserresonators of 2.7 mum wavelengths.
4. the dual wavelength pulse optical fiber laser of passive mode locking according to claim 1 guiding gain modulation, is characterized in that: the described Ho that mixes
3+or Er
3+zBLAN optical fiber (7) in,
Ho
3+the energy level transition of ion is the transition radiation of 2.1 μ m and 3.0 mum wavelengths, produces the pulsed laser radiation of two wavelength simultaneously;
Er
3+the energy level transition of ion is the transition radiation of 1.6 μ m and 2.7 mum wavelengths, produces the pulsed laser radiation of two wavelength simultaneously.
5. the dual wavelength pulse optical fiber laser of passive mode locking guiding gain modulation according to claim 1, is characterized in that:
Described semiconductor saturable absorbing mirror as saturable absorber to mixing Ho
3+the laser medium wavelength that ZBLAN optical fiber forms as gain fibre is that the laser of 2.1 μ m or 3.0 μ m carries out locked mode, and its cascade laser is carried out to gain modulation, produces the pulse laser of 3.0 μ m and 2.1 μ m;
Or described semiconductor saturable absorbing mirror as saturable absorber to mixing Er
3+the laser medium wavelength that ZBLAN optical fiber forms as gain fibre is that the laser of 1.6 μ m or 2.7 μ m carries out locked mode, and its cascade laser is carried out to gain modulation, produces the pulse laser of 2.7 μ m and 1.6 μ m.
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|---|---|---|---|
| CN201210589827.1A CN103022869B (en) | 2012-12-31 | 2012-12-31 | Passive mode-locking guide gain-modulated dual-wavelength pulse fiber laser |
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|---|---|---|---|
| CN201210589827.1A CN103022869B (en) | 2012-12-31 | 2012-12-31 | Passive mode-locking guide gain-modulated dual-wavelength pulse fiber laser |
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| CN106299986A (en) * | 2016-10-31 | 2017-01-04 | 电子科技大学 | A kind of all-fiber wavelength passive Q-adjusted mid-infrared fiber laser of optional dual wavelength |
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| CN104852260A (en) * | 2015-05-29 | 2015-08-19 | 电子科技大学 | Dual-wavelength Q-switched pulse fiber laser |
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| 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 |
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| CN112266167A (en) * | 2020-10-26 | 2021-01-26 | 深圳大学 | Based on Ho3+Manufacturing method of ion-doped ZBLAN glass material, glass microsphere and microsphere laser |
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| US5627848A (en) * | 1995-09-05 | 1997-05-06 | Imra America, Inc. | Apparatus for producing femtosecond and picosecond pulses from modelocked fiber lasers cladding pumped with broad area diode laser arrays |
| CN102709797A (en) * | 2012-06-05 | 2012-10-03 | 电子科技大学 | Intermediate infrared cascaded pulse optical fiber laser |
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2012
- 2012-12-31 CN CN201210589827.1A patent/CN103022869B/en active Active
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|---|---|---|---|---|
| US5627848A (en) * | 1995-09-05 | 1997-05-06 | Imra America, Inc. | Apparatus for producing femtosecond and picosecond pulses from modelocked fiber lasers cladding pumped with broad area diode laser arrays |
| CN102709797A (en) * | 2012-06-05 | 2012-10-03 | 电子科技大学 | Intermediate infrared cascaded pulse optical fiber laser |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106299986A (en) * | 2016-10-31 | 2017-01-04 | 电子科技大学 | A kind of all-fiber wavelength passive Q-adjusted mid-infrared fiber laser of optional dual wavelength |
| CN106299986B (en) * | 2016-10-31 | 2019-05-07 | 电子科技大学 | A kind of passive Q-adjusted mid-infrared fiber laser of optional dual wavelength of all -fiber wavelength |
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