CN105896234A - Micron waveband all-fiber negative-chirp output laser source - Google Patents
Micron waveband all-fiber negative-chirp output laser source Download PDFInfo
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- CN105896234A CN105896234A CN201610289284.XA CN201610289284A CN105896234A CN 105896234 A CN105896234 A CN 105896234A CN 201610289284 A CN201610289284 A CN 201610289284A CN 105896234 A CN105896234 A CN 105896234A
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- fiber
- outfan
- port
- source
- laser source
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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
- H01S1/00—Masers, i.e. devices using stimulated emission of electromagnetic radiation in the microwave range
- H01S1/02—Masers, i.e. devices using stimulated emission of electromagnetic radiation in the microwave range solid
Abstract
A micron waveband all-fiber negative-chirp output laser source is composed of a narrow linewidth signal source, a 2*2 port light switch, an optical fiber isolator, a delay control optical fiber, a gain medium optical fiber, a wavelength division multiplexer, a phase modulator, a band-pass filter, a pump protector, a pump source, an arbitrary waveform generator, a radio-frequency amplifier and a synchronous delay controller. The invention provides the micron waveband all-fiber negative-chirp output laser source which is characterized in that a chirp laser amount can be controlled flexibly through control of modulating signals loaded on the phase modulator. The output laser source is characterized by a compact structure and high stability.
Description
Technical field
The present invention relates to a micron waveband laser pulse, particularly one and can produce a micron waveband
The negative Output of laser source of warbling of all-fiber of laser, utilizes the phase modulator laser pulse to narrow linewidth
It is modulated, controls the phase place of laser pulse, thus obtain the negative output of warbling of a micron waveband.
Its advantage is all-fiber, the negative output of warbling of Totally positive dispersion media implementation, and can control flexibly
The negative chirp value of laser processed.
Background technology
Ultrashort laser pulse is ground in optic communication, Laser Processing, light detection, laser medicine and science
The various fields such as study carefully and there is important application.At present, blocks of solid laser instrument and optical fiber laser all may be used
To be used for producing ultrashort pulse, wherein blocks of solid Optical Maser System is bulky, cost intensive,
And structure is complicated, regulation difficulty, maintenance cost is high, and harsh to using environmental requirement, therefore it should
Restriction greatly is have received by scope.By comparison, optical fiber laser then has that thermal diffusivity is good, light beam
The advantages such as quality height, compact conformation, volume are little, low cost, environmental stability are good.But optical fiber
The fiber-optic transfer of laser instrument middle and long distance so that effect of dispersion is greatly increased.
Near 1 micron of ytterbium-doping optical fiber laser generation, the light of wavelength has in common single-mode fiber
Have positive dispersion, therefore want compensate dispersion will introduce in optical fiber laser photonic crystal fiber,
Grating is to, prism equity negative dispersion element.For photonic crystal fiber, it is molten with single-mode fiber
Connect loss generally large.And prism is unfavorable for optical fiber laser to, grating to this kind of block elements
Integrated.
In order to solve problem above, present invention achieves all-fiber, Totally positive dispersion media implementation is negative
Warble output, there is the advantages such as compact conformation, efficiency of transmission height, low cost, flexible adjustment.
Summary of the invention
It is an object of the invention to provide the negative Output of laser source of warbling of an a kind of micron waveband all-fiber,
The method utilizing Spatial transmission produces has the negative laser pulse warbled, and overcomes traditional fiber laser
The shortcoming producing negative method of warbling in device, it is achieved that all-fiber, Totally positive dispersion media implementation is negative
Warble output, have that compact conformation, efficiency of transmission be high, low cost and other advantages, and by exchanging
Signal processed and the control of modulation number of times, it is possible to control the negative chirp value of output light flexibly.
The technical solution of the present invention is as follows:
The negative Output of laser source of warbling of all-fiber of an a kind of micron waveband, its composition includes: narrow linewidth
Signal source, 2 × 2 port optical switches, fibre optic isolater, gain media optical fiber, wavelength division multiplexer,
Phase modulator, band filter, pumping source, pumping protection device, AWG (Arbitrary Waveform Generator), penetrate
Audio amplifier, synchronizing relay controller, the annexation of above-mentioned component is as follows:
First outfan of described synchronizing relay controller and 2 × 2 described port optical switches
Control end to be connected；Second outfan of described synchronizing relay controller and described narrow linewidth signal
The control end in source is connected；3rd outfan of described synchronizing relay controller and described any ripple
Shape generator controls end and is connected；
The outfan of described narrow linewidth signal source is defeated with the first of 2 × 2 described port optical switches
Inbound port is connected, and the first output port of this 2 × 2 port optical switch sequentially passes through described by optical fiber
Fibre optic isolater, gain media optical fiber, wavelength division multiplexer, phase modulator, band filter,
Second input port of 2 × 2 port optical switches constitutes an annular chamber；2 × 2 described port opticals
The outfan that second output port is this device of switch；
The outfan of described pumping source is through described pumping protection device and described wavelength division multiplexer
The second input be connected；
The outfan of described AWG (Arbitrary Waveform Generator) is through described radio frequency amplifier and described position phase
Second input of manipulator is connected.
The narrow line described in triggering signal triggering of described synchronizing relay controller the second outfan output
Bandwidth signals source produces narrow linewidth flashlight and enters through the first input end of 2 × 2 described port optical switches
Enter first outfan output enter optic fiber ring-shaped cavity, in annular chamber light pulse through fibre optic isolater,
Gain media optical fiber, wavelength division multiplexer first input end and outfan arrive phase modulator, in place
Being modulated by forward modulation electrical modulation signal in phase modulation, light pulse produces negative dispersion, then
Exporting from phase modulator outfan, arriving 2 × 2 port opticals after band filter, to switch second defeated
Entering end, complete the circulation of a fiber annular intracavity, 2 × 2 described port opticals switch by described
The triggering signal of the first outfan output of synchronizing relay controller controls so that optical signal is in annular
Intracavity at cavity circulation and obtains the tired of negative dispersion repeatedly to cycle through, described narrow linewidth signal source
Amass and amplify, until synchronizing relay controller controls 2 × 2 port optical switch output laser pulses.
Described synchronizing relay controller is made up of photodetector and numeral delay pulse generator.
Described fibre optic isolater is used for isolating backlight, in order to avoid causing element damage.
Described gain media optical fiber is Yb dosed optical fiber, and the signal source for a micron waveband provides gain.
Described pumping source is as the pumping source of gain media.
Described pumping protection device plays buffer action, prevents light from entering pump laser, causes laser
Device damages.
Described AWG (Arbitrary Waveform Generator) produces the modulated signal of forward, through described radio frequency amplifier
Rear modulated signal is amplified, and acts on phase modulator, for optical signal is modulated,
Realize negative dispersion.The described AWG (Arbitrary Waveform Generator) output described in the control of synchronizing relay controller is adjusted
The time of signal processed, it is achieved modulated signal and the time synchronized of optical signal, effectively modulated.
Described band filter is used for suppressing spontaneous emission noise in annular chamber.
It is an advantage of the current invention that:
1, the structure of all-fiber, compact conformation are used, it is simple to adjust.
2, by being modulated light pulse at cavity circulation, final realization bears chirped laser pulse
Output, and can control to export the negative of light flexibly warble by controlling modulated signal and cycle-index
Amount.
3, device is with structure for amplifying, the energy loss during compensation cycle, it is provided that certain increasing
Benefit.
Accompanying drawing explanation
Fig. 1 is the apparatus structure signal that the present invention one micron waveband all-fiber bears Output of laser source of warbling
Figure.
Fig. 2 is 2 × 2 port optical switch path schematic diagrams
In figure:
1-narrow linewidth signal source；2-2 × 2 port optical switch；3-fibre optic isolater；4-gain media
Optical fiber；5-wavelength division multiplexer；6-phase modulator；7-band filter；8-pumping source；9-pump
Pu protector；10-AWG (Arbitrary Waveform Generator)；11-pumping protection device；The negative Zhou of 12-mono-micron waveband
Laser of singing exports；The first input port of 13-2 × 2 port optical switch；14-2 × 2 port optical switch
The second output port；Second input port of 15-2 × 2 port optical switch；16-2 × 2 port optical
First output port of switch；17-synchronizing relay controller；The control of 18-2 × 2 port optical switch
End.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention will be further described, but should not limit this with this
The protection domain of invention.
First referring to Fig. 1, Fig. 1 is the negative Output of laser source of warbling of the present invention one micron waveband all-fiber
Structural representation.As seen from the figure, the negative Output of laser source of warbling of the present invention one micron waveband all-fiber
Device, is situated between including narrow linewidth signal source 1,2 × 2 port optical switch 2, fibre optic isolater 3, gain
Matter optical fiber 4, wavelength division multiplexer 5, phase modulator 6, band filter 7, pumping source 8, pump
Pu protector 9, AWG (Arbitrary Waveform Generator) 10, radio frequency amplifier 11, synchronizing relay controller 17,
The annexation of above-mentioned component is as follows:
First outfan of described synchronizing relay controller and 2 × 2 described port optical switches 2
Control end be connected；Second outfan of described synchronizing relay controller is believed with described narrow linewidth
The control end in number source 1 is connected；3rd outfan of described synchronizing relay controller is appointed with described
Meaning waveform generator 10 controls end and is connected.
The outfan of described narrow linewidth signal source is defeated with the first of 2 × 2 described port optical switches
Entering end 13 to be connected, the first outfan 16 of this 2 × 2 port optical switch 2 is sequentially passed through by optical fiber
Described fibre optic isolater 3, gain media optical fiber 4, wavelength division multiplexer 5, phase modulator 6,
Second input of band filter 7,2 × 2 port optical switch 2 constitutes an annular chamber；Described
2 × 2 port opticals switch the second outfan 14 be the outfan of this device；
Described pumping source 8 is through the of described pumping protection device 9 and described wavelength division multiplexer 5
Two inputs are connected；
Described AWG (Arbitrary Waveform Generator) 10 is adjusted with described position mutually through described radio frequency amplifier 11
Second input of device 6 processed is connected；
Triggering described in signal triggering of described synchronizing relay controller 17 second outfan output
Narrow linewidth signal source 1 produces first defeated through described 2 × 2 port opticals switches 2 of narrow linewidth flashlight
Entering end 13 and the output of the first outfan 16 enters optic fiber ring-shaped cavity, in annular chamber, light pulse is passed through
Fibre optic isolater 3, gain media optical fiber 4, wavelength division multiplexer 5 first input end and outfan arrive
The first input end of phase modulator 6, by after the modulation of electrical modulation signal in phase modulator
Export from phase modulator outfan, after band filter 7, arrive described 2 × 2 port optical switches
Second input 15, completes the circulation of a fiber annular intracavity, and 2 × 2 described port opticals are opened
Close 2 to be controlled by the triggering signal of the first outfan output of described synchronizing relay controller 17, make
Optical signal in annular chamber repeatedly to cycle through, described narrow linewidth signal source 1 is at cavity circulation
And obtain the accumulation of negative dispersion and amplify, until described synchronizing relay controller 17 controls 2 × 2 ends
Mouth photoswitch output laser pulse.
The first input end of described wavelength division multiplexer 5 through described gain media optical fiber 4 with described
The outfan of fibre optic isolater 3 is connected, and the outfan of this wavelength division multiplexer 5 is adjusted mutually with described position
The first input end of device 6 processed is connected, the outfan of this phase modulator 6 and described bandpass filtering
The input of device 7 is connected.
Described gain media optical fiber 4 is Yb dosed optical fiber, and the signal source for a micron waveband provides increasing
Benefit.
Described pumping protection device is isolator or the wave filter through pumping laser wavelength.
Described AWG (Arbitrary Waveform Generator) 10 produces the modulated signal of forward, amplifies through described radio frequency
After device 11, modulated signal is amplified, and acts on phase modulator 6, for carrying out optical signal
Modulation, it is achieved negative dispersion.Described synchronizing relay controller 17 controls described random waveform and occurs
The time of device output modulated signal, it is achieved modulated signal and the time synchronized of optical signal, obtain effectively
Modulation.
See the active channel schematic diagram that Fig. 2, Fig. 2 are 2 × 2 port optical switches 2.2 × 2 ports
Photoswitch 2 has five ports, and wherein first input end 13 is light pulse input, the second output
End 14 for light pulse outfan, the second input 15 and the first outfan 16 is annular chamber two
Port, by controlling acousto-optic modulator 2, it is possible to achieve laser pulse input in annular chamber,
Circulation and output.Being closed during the non-increase control signal of acousto-optic modulator, laser pulse is first
Enter acousto-optic modulator through first input end 13, then laser pulse is by first input end 13 diffraction
Enter optic fiber ring-shaped cavity to the first outfan 16, after once circulation, arrive the second input 15,
Finally export from the second outfan 14.If laser is at the first outfan 16 and the second input 15
Between transmission time, to acousto-optic modulator 2 plus control signal, then laser pulse arrives the second input
The first outfan 16 can be diffracted into after end 15 and continue at cavity circulation, until obtaining desired negative
During dispersion measure, removing control signal, laser pulse exports from the second outfan 14.
Claims (7)
1. the negative Output of laser source of warbling of all-fiber of a micron waveband, is characterised by that it constitutes bag
Include: narrow linewidth signal source (1), 2 × 2 port optical switch (2), fibre optic isolater (3), gains
Medium optical fiber (4), wavelength division multiplexer (5), phase modulator (6), band filter (7),
Pumping source (8), pumping protection device (9), AWG (Arbitrary Waveform Generator) (10), radio frequency amplifier (11),
Synchronizing relay controller (17), the annexation of above-mentioned component is as follows:
First outfan of described synchronizing relay controller (17) is opened with 2 × 2 described port opticals
The control end (18) closing (2) is connected；Second output of described synchronizing relay controller (17)
End is connected with the control end of described narrow linewidth signal source (1)；Described synchronizing relay controller (17)
The 3rd outfan and described AWG (Arbitrary Waveform Generator) (10) control end and be connected；
The outfan of described narrow linewidth signal source (1) and 2 × 2 described port opticals switch (2)
First input port (13) be connected, this 2 × 2 port optical switch (2) the first output port
(16) by optical fiber sequentially pass through described fibre optic isolater (3), gain media optical fiber (4),
Wavelength division multiplexer (5), phase modulator (6), band filter (7), 2 × 2 port optical switches
(2) the second input port (15) constitutes an annular chamber；2 × 2 described port optical switches
(2) the second output port (14) is the outfan of this device；
The outfan of described pumping source (8) through described pumping protection device (9) with described
Second input of wavelength division multiplexer (5) is connected；
The outfan of described AWG (Arbitrary Waveform Generator) (10) is through described radio frequency amplifier (11)
It is connected with the second input of described phase modulator (6).
The negative Output of laser source of warbling of all-fiber of a micron waveband the most according to claim 1,
It is characterized in that, described synchronizing relay controller (17) is by photodetector and digital delay arteries and veins
Rush generator to constitute；AWG (Arbitrary Waveform Generator) output modulation described in the control of this synchronizing relay controller
The time of signal, it is achieved modulated signal and the time synchronized of optical signal, effectively modulated.
The negative Output of laser source of warbling of all-fiber of a micron waveband the most according to claim 1,
It is characterized in that, described gain media optical fiber is Yb dosed optical fiber, is the signal source of a micron waveband
Gain is provided.
The negative Output of laser source of warbling of all-fiber of a micron waveband the most according to claim 1,
It is characterized in that, described pumping source is as the pumping source of gain media.
The negative Output of laser source of warbling of all-fiber of a micron waveband the most according to claim 1,
It is characterized in that, described AWG (Arbitrary Waveform Generator) produces the modulated signal of forward, penetrates through described
After audio amplifier, modulated signal is amplified, and acts on phase modulator, for entering optical signal
Row modulation, it is achieved negative dispersion.
The negative Output of laser source of warbling of all-fiber of a micron waveband the most according to claim 1,
It is characterized in that, described band filter is used for suppressing spontaneous emission noise in annular chamber.
The negative Output of laser source of warbling of all-fiber of a micron waveband the most according to claim 1,
It is characterized in that, the first input end of described wavelength division multiplexer 5 is through described gain media optical fiber
4 are connected with the outfan of described fibre optic isolater 3, the outfan of this wavelength division multiplexer (5) with
The first input end of described phase modulator (6) is connected, the output of this phase modulator (6)
End is connected with the input of described band filter (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610289284.XA CN105896234A (en) | 2016-05-03 | 2016-05-03 | Micron waveband all-fiber negative-chirp output laser source |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610289284.XA CN105896234A (en) | 2016-05-03 | 2016-05-03 | Micron waveband all-fiber negative-chirp output laser source |
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| CN105896234A true CN105896234A (en) | 2016-08-24 |
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| CN201610289284.XA Pending CN105896234A (en) | 2016-05-03 | 2016-05-03 | Micron waveband all-fiber negative-chirp output laser source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113193472A (en) * | 2021-05-08 | 2021-07-30 | 北方工业大学 | Initial chirp regulator for optical signal |
| WO2021243513A1 (en) * | 2020-06-01 | 2021-12-09 | 浙江大学 | All-fiber high-energy pulse regenerative amplification apparatus and method based on 2×3 optical switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1727248A1 (en) * | 2005-05-23 | 2006-11-29 | PolarOnyx , Inc. | Nonlinear polarization pulse mode locked fiber laser at a wavelength of one micron |
| JP2008124893A (en) * | 2006-11-14 | 2008-05-29 | Mitsubishi Electric Corp | Variance pre-equalization optical transmitter and optical communication system |
| CN103001107A (en) * | 2012-12-13 | 2013-03-27 | 中国科学院上海光学精密机械研究所 | Multi-pass chirped fiber grating pulse broadening device |
| CN103346854A (en) * | 2013-07-09 | 2013-10-09 | 清华大学 | Optical time-diversion multiplexing device based on aperture limited time lens |
| CN104049389A (en) * | 2014-05-16 | 2014-09-17 | 中国科学院上海光学精密机械研究所 | Modulation device for phase of all-fiber laser pulse |
-
2016
- 2016-05-03 CN CN201610289284.XA patent/CN105896234A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1727248A1 (en) * | 2005-05-23 | 2006-11-29 | PolarOnyx , Inc. | Nonlinear polarization pulse mode locked fiber laser at a wavelength of one micron |
| JP2008124893A (en) * | 2006-11-14 | 2008-05-29 | Mitsubishi Electric Corp | Variance pre-equalization optical transmitter and optical communication system |
| CN103001107A (en) * | 2012-12-13 | 2013-03-27 | 中国科学院上海光学精密机械研究所 | Multi-pass chirped fiber grating pulse broadening device |
| CN103346854A (en) * | 2013-07-09 | 2013-10-09 | 清华大学 | Optical time-diversion multiplexing device based on aperture limited time lens |
| CN104049389A (en) * | 2014-05-16 | 2014-09-17 | 中国科学院上海光学精密机械研究所 | Modulation device for phase of all-fiber laser pulse |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021243513A1 (en) * | 2020-06-01 | 2021-12-09 | 浙江大学 | All-fiber high-energy pulse regenerative amplification apparatus and method based on 2×3 optical switch |
| CN113193472A (en) * | 2021-05-08 | 2021-07-30 | 北方工业大学 | Initial chirp regulator for optical signal |
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Application publication date: 20160824 |