CN109149328A - A kind of low-repetition-frequency linear cavity picosecond ytterbium-doping optical fiber laser of ambient stable - Google Patents
A kind of low-repetition-frequency linear cavity picosecond ytterbium-doping optical fiber laser of ambient stable Download PDFInfo
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- CN109149328A CN109149328A CN201810966193.4A CN201810966193A CN109149328A CN 109149328 A CN109149328 A CN 109149328A CN 201810966193 A CN201810966193 A CN 201810966193A CN 109149328 A CN109149328 A CN 109149328A
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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
- H01S3/06795—Fibre lasers with superfluorescent emission, e.g. amplified spontaneous emission sources for fibre laser gyrometers
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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
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
- H01S3/06716—Fibre compositions or doping with active elements
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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
- H01S3/0675—Resonators including a grating structure, e.g. distributed Bragg reflectors [DBR] or distributed feedback [DFB] fibre lasers
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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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1106—Mode locking
- H01S3/1112—Passive mode locking
- H01S3/1115—Passive mode locking using intracavity saturable absorbers
- H01S3/1118—Semiconductor saturable absorbers, e.g. semiconductor saturable absorber mirrors [SESAMs]; Solid-state saturable absorbers, e.g. carbon nanotube [CNT] based
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Abstract
The invention discloses a kind of low-repetition-frequency linear cavity picosecond ytterbium-doping optical fiber lasers of ambient stable, the either end of fiber bragg grating is connected with fibre optic isolater two, the another port of fiber bragg grating is connected with a port of fibre delay line, the another port of fibre delay line is connected with the port one of fiber coupler, the port two of fiber coupler is connected with the input terminal of fibre optic isolater, the fibre optic isolater other end is as Ps Laser Pulse output port, the port three of fiber coupler is connected with Yb dosed optical fiber, the Yb dosed optical fiber other end is connected with the common end of wavelength division multiplexer, the pumping end of wavelength division multiplexer is connected with the output end of pumping source.The present invention using large mode field optical fiber by so that the pulse energy in fibre delay line is lower, to reduce the accumulation of nonlinear phase shift, on the other hand reducing the nonlinear phase shift amount of unit length optical fiber in intracavitary introducing fiber coupler.
Description
Technical field
The present invention relates to the industrial technical fields such as laser precision machining, laser cleaning more particularly to a kind of ambient stables
Low-repetition-frequency linear cavity picosecond ytterbium-doping optical fiber laser.
Background technique
The low repetition of 1 micron waveband, big energy picosecond laser have extensive in fields such as laser precision machining, laser cleanings
Application.The ytterbium picosecond laser of mixing of industry application at present is all mainly to use linear cavity full polarization fibre saturable absorber
Mould-locking structure can design with output pulse width, is compact-sized, reliable and stable advantage.But it is unstable by tune Q
Property and nonlinear phase shift accumulation influence, such laser with intracavitary draw power increase when pass through respectively Q-switch and mode-locking state,
Pulse state and multiple-pulse state state.Laser operates in stable pulse state and laser is required to keep sufficiently large energy same
When have lower nonlinear phase shift.In contrast, when repetition rate reduces (i.e. increase chamber is long), pulse operating condition area
Domain area is compressed by, and is caused what three kinds of states occurred when by perturbation for laser mutually to cross jump, is unable to stable operation.Cause
This, current technology scheme is to design laser repetition rate in 20MHz or more, then in laser external and picked up using pulse
Take device that repetition rate is reduced to a few MHz magnitudes, which results in the complexity of device, reduce energy conversion efficiency.
Therefore, the low-repetition-frequency picosecond optical fiber laser for how obtaining ambient stable has great importance.
Summary of the invention
The object of the invention is to remedy the disadvantages of known techniques, and the low-repetition-frequency for providing a kind of ambient stable is linear
Chamber picosecond ytterbium-doping optical fiber laser.
The present invention is achieved by the following technical solutions:
A kind of low-repetition-frequency linear cavity picosecond ytterbium-doping optical fiber laser of ambient stable, includes fiber bragg grating, light
Fine delay line, fibre optic isolater one, fibre optic isolater two, fiber coupler, Yb dosed optical fiber, wavelength division multiplexer, pumping source and band
The either end of tail optical fiber saturable absorber reflecting mirror, the fiber bragg grating is connected with fibre optic isolater two, optical fiber cloth
The another port of glug grating is connected with a port of fibre delay line, the another port of fibre delay line and fiber coupler
Port one be connected, the port two of fiber coupler is connected with the input terminal of fibre optic isolater one, one other end of fibre optic isolater
As Ps Laser Pulse output port, the port three of fiber coupler is connected with Yb dosed optical fiber, the Yb dosed optical fiber other end and wave
The common end of division multiplexer is connected, and the pumping end of wavelength division multiplexer is connected with the output end of pumping source, the signal of wavelength division multiplexer
End is connected with optical-fiber type saturable absorber reflecting mirror input terminal.
10 ~ 20 μm of the fiber core mode field diameter range of the fiber bragg grating, reflectivity > 90%, 3dB is anti-
The range for penetrating bandwidth is 0.02nm ~ 1nm, and the range of central wavelength is 1000nm ~ 1080nm.
The doping component of the Yb dosed optical fiber is ytterbium element, and doped substrate is silicate glass, fibre-optic mode field diameter model
7 ~ 20 μm are enclosed, is single mode or multimode fibre.
The fiber bragg grating, fibre delay line, fibre optic isolater one, fibre optic isolater two, fiber coupler,
Yb dosed optical fiber, wavelength division multiplexer, pumping source and the fibre-optic mode field diameter range with tail optical fiber saturable absorber reflecting mirror be 7 ~
20 μm, be single mode or multimode fibre.
The splitting ratio range of port one and two of the fiber coupler is 50:50 ~ 90:10.
Fiber lengths, Yb dosed optical fiber between the fiber coupler and Yb dosed optical fiber and the optical fiber between wavelength division multiplexer
Length, wavelength division multiplexer and 30cm is respectively less than with the fiber lengths between tail optical fiber saturable absorber reflecting mirror；Optical fiber Bragg
Grating is greater than 15m in one tail optical fiber overall length of the port of intracavitary tail optical fiber, fibre delay line and fiber coupler.
The invention has the advantages that the present invention is by intracavitary introducing fiber coupler, so that the pulse in fibre delay line
Energy is lower, to reduce the accumulative of nonlinear phase shift, on the other hand reduces the non-of unit length optical fiber using large mode field optical fiber
Linear phase shift amount.By using this technology can by the repetition rate of laser from common 20MHz now be reduced to 2MHz with
Under, while keeping output pulse width constant in the process.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
As shown in Figure 1, a kind of low-repetition-frequency linear cavity picosecond ytterbium-doping optical fiber laser of ambient stable, includes optical fiber
Bragg grating 1, fibre delay line 2, fibre optic isolater 1, fibre optic isolater 29, fiber coupler 4, Yb dosed optical fiber 5, wave
Division multiplexer 6, pumping source 7 and with tail optical fiber saturable absorber reflecting mirror 8, the either end of the fiber bragg grating 1 with
Fibre optic isolater 29 is connected, and the another port of fiber bragg grating 1 is connected with a port of fibre delay line 2, and optical fiber prolongs
The slow another port of line 2 is connected with the port one of fiber coupler 4, port two and the fibre optic isolater 1 of fiber coupler 4
Input terminal be connected, one 3 other end of fibre optic isolater be used as Ps Laser Pulse output port, the port three of fiber coupler 4 and
Yb dosed optical fiber 5 be connected, 5 other end of Yb dosed optical fiber is connected with the common end of wavelength division multiplexer 6, the pumping end of wavelength division multiplexer 6 and
The output end of pumping source 7 is connected, and the signal end of wavelength division multiplexer 6 is connected with 8 input terminal of tail optical fiber saturable absorber reflecting mirror.
10 ~ 20 μm of the fiber core mode field diameter range of the fiber bragg grating 1, reflectivity > 90%, 3dB is anti-
The range for penetrating bandwidth is 0.02nm ~ 1nm, and the range of central wavelength is 1000nm ~ 1080nm.
The doping component of the Yb dosed optical fiber 5 is ytterbium element, and doped substrate is silicate glass, fibre-optic mode field diameter model
Enclose 7 ~ 20 μm.
The fiber bragg grating 1, fibre delay line 2, fibre optic isolater 1, fibre optic isolater 29, optical fiber coupling
Clutch 4, Yb dosed optical fiber 5, wavelength division multiplexer 6, pumping source 7 and the fibre-optic mode field diameter with tail optical fiber saturable absorber reflecting mirror 8
Range is 7 ~ 20 μm, is single mode or multimode fibre.
The splitting ratio range of port one and two of the fiber coupler 4 is 50:50 ~ 90:10.
Fiber lengths, Yb dosed optical fiber 5 between the fiber coupler 4 and Yb dosed optical fiber 5 and between wavelength division multiplexer 6
Fiber lengths, wavelength division multiplexer 6 and 30cm is respectively less than with the fiber lengths between tail optical fiber saturable absorber reflecting mirror 8；Optical fiber
Bragg grating 1 is greater than 15m in one tail optical fiber overall length of the port of intracavitary tail optical fiber, fibre delay line and fiber coupler 4.
The working principle of the invention: pumping source 7 emits pump light and enters Yb dosed optical fiber 5, Yb dosed optical fiber 5 through wavelength division multiplexer
The middle spontaneous emission light (ASE) that population inversion occurs and generates broadband, the ASE of forward direction transmission pass through fiber coupler 4, according to
Splitting ratio enters port one and two, and the ASE in port one reaches fiber bragg grating 1, broadband using fibre delay line 2
It is reflected back toward intracavitary, remaining spectral component transmission loss in the corresponding narrow-band spectrum ingredient of screen periods in ASE, reflection
By Yb dosed optical fiber 5 stimulated radiation occurs for narrowband ASE, and stimulated radiation, which reaches band tail optical fiber saturable absorber reflecting mirror generation, to satisfy
It is intracavitary with being reflected back toward after absorption.By repeatedly recycling, interacvity gain is equal to loss laser starting of oscillation, emits continuous laser.Due to
The perturbations such as environment, relaxation process, continuous laser have been superimposed random low range noise pulse, anti-due to saturable absorber
The optical cavity for penetrating rate and incident light is directly proportional.Therefore, noise pulse is amplified and narrows intracavitary, forms picosecond pulse；In frequency
On domain, saturable absorber introduces periodic amplitude modulation, so as to cause the neighbouring side mode starting of oscillation of the continuous light of starting of oscillation, and
It is expanded in the reflection bandwidth of fiber bragg grating to high-order side mode, it is final to realize " mode locking " operating.
There is dispersion and nonlinear effect, wherein excessive nonlinear phase shift meeting when picosecond pulse laser is transmitted in a fiber
Cause pulse to generate light wave to divide and be evolved into multiple-pulse.It is intracavitary non-thread to ensure when increasing chamber length to lower repetition rate
Property phase shift accumulation do not break through laser stabilization pulse still and operate permitted value, it is necessary to while reducing pump power, by
This, when cavity circulation pulse energy is too low, may result in make the reduction of cavity circulation pulse energy but unfortunately
SESAM is difficult to reach saturation, and then the operating of pulse mode locking can not be obtained because of so-called tune Q instability effect.Therefore, non-
Managing and controlling for linear phase shift is the key that realize the steady running of low-repetition-frequency picosecond laser.By in intracavitary insertion coupling
Clutch extracts pulse energy, and it is long to increase chamber using large mode field optical fiber, and large mode field optical fiber is placed in coupler backend pulse energy
Lower position is measured, can effectively reduce nonlinear phase shift accumulation, so that laser chamber length still remains pulse after being significantly increased
Mode locking operates section.
Claims (6)
1. a kind of low-repetition-frequency linear cavity picosecond ytterbium-doping optical fiber laser of ambient stable, it is characterised in that: include optical fiber
Bragg grating, fibre delay line, fibre optic isolater one, fibre optic isolater two, fiber coupler, Yb dosed optical fiber, wavelength-division multiplex
Device, pumping source and the saturable absorber reflecting mirror with tail optical fiber, the either end and Fiber isolation of the fiber bragg grating
Device two be connected, the another port of fiber bragg grating is connected with a port of fibre delay line, fibre delay line it is another
Port is connected with the port one of fiber coupler, and the port two of fiber coupler is connected with the input terminal of fibre optic isolater one, light
One other end of fiber isolator is connected with Yb dosed optical fiber, mixes as Ps Laser Pulse output port, the port three of fiber coupler
The ytterbium optical fiber other end is connected with the common end of wavelength division multiplexer, and the pumping end of wavelength division multiplexer is connected with the output end of pumping source,
The signal end of wavelength division multiplexer is connected with optical-fiber type saturable absorber reflecting mirror input terminal.
2. a kind of low-repetition-frequency linear cavity picosecond ytterbium-doping optical fiber laser of ambient stable according to claim 1,
Be characterized in that: 7 ~ 20 μm of the fiber core mode field diameter range of the fiber bragg grating, reflectivity > 90%, 3dB is anti-
The range for penetrating bandwidth is 0.02nm ~ 1nm, and the range of central wavelength is 1000nm ~ 1080nm.
3. a kind of low-repetition-frequency linear cavity picosecond ytterbium-doping optical fiber laser of ambient stable according to claim 1,
Be characterized in that: the doping component of the Yb dosed optical fiber is ytterbium element, and doped substrate is silicate glass, fibre-optic mode field diameter model
7 ~ 20 μm are enclosed, is single mode or multimode fibre.
4. a kind of low-repetition-frequency linear cavity picosecond ytterbium-doping optical fiber laser of ambient stable according to claim 1,
It is characterized in that: the fiber bragg grating, fibre delay line, fibre optic isolater one, fibre optic isolater two, fiber coupling
Device, Yb dosed optical fiber, wavelength division multiplexer, pumping source and optical-fiber type saturable absorber reflecting mirror fibre-optic mode field diameter range be
7 ~ 20 μm, be single mode or multimode fibre.
5. a kind of low-repetition-frequency linear cavity picosecond ytterbium-doping optical fiber laser of ambient stable according to claim 1,
Be characterized in that: the splitting ratio range of port one and two of the fiber coupler is 50:50 ~ 90:10.
6. a kind of low-repetition-frequency linear cavity picosecond ytterbium-doping optical fiber laser of ambient stable according to claim 1,
It is characterized in that: fiber lengths, Yb dosed optical fiber between the fiber coupler and Yb dosed optical fiber and the light between wavelength division multiplexer
Fiber lengths between fine length, wavelength division multiplexer and optical-fiber type saturable absorber reflecting mirror are respectively less than 30cm；Optical fiber Bradley
Lattice grating is greater than 15m in one tail optical fiber overall length of the port of intracavitary tail optical fiber, fibre delay line and fiber coupler.
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| CN201810966193.4A CN109149328B (en) | 2018-08-23 | 2018-08-23 | Environmentally stable low-repetition-frequency linear cavity picosecond ytterbium-doped fiber laser |
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| CN201810966193.4A CN109149328B (en) | 2018-08-23 | 2018-08-23 | Environmentally stable low-repetition-frequency linear cavity picosecond ytterbium-doped fiber laser |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638627A (en) * | 2019-01-31 | 2019-04-16 | 武汉锐科光纤激光技术股份有限公司 | A kind of picosecond seed source laser |
| CN112271539A (en) * | 2020-10-12 | 2021-01-26 | 北京卓镭激光技术有限公司 | Power supply power-on method and device and SESAM picosecond optical fiber laser |
| CN115685448A (en) * | 2022-10-12 | 2023-02-03 | 北京大学长三角光电科学研究院 | Wavelength division multiplexer, design method and manufacturing method thereof and optical fiber laser |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080165413A1 (en) * | 2007-01-04 | 2008-07-10 | Sumitomo Electric Industries, Ltd. | Optical module |
| US20110069723A1 (en) * | 2008-12-04 | 2011-03-24 | Imra America, Inc. | Highly rare-earth-doped optical fibers for fiber lasers and amplifiers |
| CN103633538A (en) * | 2013-11-28 | 2014-03-12 | 中国科学院半导体研究所 | Picosecond-controllable dual-wavelength fiber laser |
| CN106058621A (en) * | 2016-06-21 | 2016-10-26 | 上海理工大学 | Adjustable picosecond laser |
| CN206076724U (en) * | 2016-09-22 | 2017-04-05 | 广州安特激光技术有限公司 | A kind of passive Q-adjusted regenerative amplification lamp pump picosecond laser of low-repetition-frequency |
-
2018
- 2018-08-23 CN CN201810966193.4A patent/CN109149328B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080165413A1 (en) * | 2007-01-04 | 2008-07-10 | Sumitomo Electric Industries, Ltd. | Optical module |
| US20110069723A1 (en) * | 2008-12-04 | 2011-03-24 | Imra America, Inc. | Highly rare-earth-doped optical fibers for fiber lasers and amplifiers |
| CN103633538A (en) * | 2013-11-28 | 2014-03-12 | 中国科学院半导体研究所 | Picosecond-controllable dual-wavelength fiber laser |
| CN106058621A (en) * | 2016-06-21 | 2016-10-26 | 上海理工大学 | Adjustable picosecond laser |
| CN206076724U (en) * | 2016-09-22 | 2017-04-05 | 广州安特激光技术有限公司 | A kind of passive Q-adjusted regenerative amplification lamp pump picosecond laser of low-repetition-frequency |
Non-Patent Citations (2)
| Title |
|---|
| M. BAUMGARTL ET AL.: "Environmentally stable picoseconds Yb fiber laser with low repetition rate", 《APPLIED PHYSICS B》 * |
| YANG WANG ET AL.: "environmentally-stable pulse energy-tunable picosecond fiber laser", 《IEEE PHOTONICS TECHNOL. LETT.》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638627A (en) * | 2019-01-31 | 2019-04-16 | 武汉锐科光纤激光技术股份有限公司 | A kind of picosecond seed source laser |
| CN112271539A (en) * | 2020-10-12 | 2021-01-26 | 北京卓镭激光技术有限公司 | Power supply power-on method and device and SESAM picosecond optical fiber laser |
| CN115685448A (en) * | 2022-10-12 | 2023-02-03 | 北京大学长三角光电科学研究院 | Wavelength division multiplexer, design method and manufacturing method thereof and optical fiber laser |
| CN115685448B (en) * | 2022-10-12 | 2023-09-19 | 北京大学长三角光电科学研究院 | Wavelength division multiplexer, design method and manufacturing method thereof and fiber laser |
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