CN102025096A - Multi-wavelength mode-locked laser - Google Patents
Multi-wavelength mode-locked laser Download PDFInfo
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- CN102025096A CN102025096A CN 201010562644 CN201010562644A CN102025096A CN 102025096 A CN102025096 A CN 102025096A CN 201010562644 CN201010562644 CN 201010562644 CN 201010562644 A CN201010562644 A CN 201010562644A CN 102025096 A CN102025096 A CN 102025096A
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Abstract
The invention relates to an optical laser, in particular to a multi-wavelength mode-locked all-fiber laser with high pulse energy and ultrashort laser pulse output. The multi-wavelength mode-locked all-fiber laser outputs multi-wavelength locked-mode laser pulses by utilizing a rare-earth-doped fiber as a laser gain medium, working in a total-positive dispersion regime, using a long-period fiber grating with a plurality of band-pass filters as a spectral filter. The laser has simple structure, is a locked-mode ultrashort laser pulse laser for realizing high-efficiency low-cost novel all-fiber laser, has the pulse width wavelengths larger than laser of 1 micro at nanoseconds, picoseconds and femto seconds and can be widely applied to the fields, such as optical communication, biology, medical science, optical precision finishing, and the like.
Description
Technical field
The present invention relates to a kind of fiber laser,
Be particularly related to a kind of multi-wavelength mode-locked all-fiber laser with high impulse energy ultrashort laser pulse output, be applicable to and produce stable multi-wavelength mode locking pulse, carry out the locked mode of multi-wavelength tunable pulse on this basis, be widely used in, optical communication, medical imaging, biologic applications and optical precision measurement etc. belong to the optical information technical field.
Background technology
Along with the development of high-capacity optical fiber communication network, dense wave division multipurpose (DWDM) and Optical Time Division Multiplexing (OTDM) are the effective ways that realizes the optical fiber telecommunications system upgrade expanding, and the generation of multi-wavelength ultrashort pulse signal then is a key technology corresponding with it.The most directly provide the method for multiple signals to adopt a plurality of single wavelength pulse lasers exactly.If but merely increased laser quantity, cost will certainly be increased, so the multiple-wavelength laser of stable performance is had an optimistic view of by people more.Multiple-wavelength laser can make the design of light transmitting terminal compact, economical more, thereby very important purposes is arranged in communication system simultaneously for a plurality of channels provide the required pulse light source.And the ultrashort pulse that the multi-wavelength mode locked fiber laser produces not only can be used as the desirable light source of optical fiber telecommunications system, and in various fields such as light sensing, nonlinear optics, biomedicine, detection diagnosis, military affairs wide application prospect is arranged.So the development of multi-wavelength mode-locked laser has great importance undoubtedly.Mix the ytterbium silica fiber and have very wide absorption spectra (800nm～1064nm) and emission spectra (975nm～1200nm) because of it, high power saturation factor, high conversion efficiency, can carry out high-concentration dopant and not have concentration quenching under high doping, have very big gain bandwidth simultaneously and can support transform limit pulse, and in the gain media of high-power, high-energy ultrashort pulse fiber laser, enjoy favor less than 30fs.Be operated near the ytterbium-doping optical fiber laser of 1 μ m and can be used as the high-energy ultra-short pulse source that is applicable to extensive application, particularly very attractive as the pumping source of optical parametric oscillator.
Fiber laser is because of its unique waveguiding structure, has characteristics such as simple, high efficiency, firm, light weight, integrated, high reliability, high stability, is subjected to people's favor.In recent years, the high-power fiber ultrashort light pulse laser technology based on the optical-fiber laser technology has obtained develop rapidly.
Document " High energy femtosecond fiber lasers based on pulse propagation at normal dispersion " (Frank W.Wise et al,, Laser ﹠amp; Photonics.Rev.2, No.1-2,58-73,2008) in, reported about being operated in the Y that mixes in Totally positive dispersion district
b
3+
The optical-fiber laser technology makes the ultrashort pulse fiber laser technology of output macro-energy, Stability Analysis of Structures, practicability stride forward major step.Although because the Totally positive dispersion cavity makes this mode locked fiber laser output have the picosecond laser pulse of positive in a large number linear Zhou pond, but can obtain the macro-energy femto-second laser pulse of transform limit outside the employing chamber after the chromatic dispersion compression, certainly because this laser adopts the mechanism of spectral filtering light pulse compression to make the spectral bandwidth of laser output be subjected to certain restriction.But, therefore be subjected to the attention of academia because this laser structure is simplified and can be realized full fiberize and export the light pulse of picosecond macro-energy locked mode.Realize the existing relevant report of research of multi-wavelength mode-locked laser at Totally positive dispersion cavity.Document " H.Zhang; D.Y.Tang, X.Wu, andL.M.Zhao; Multi-wavelengthdissipativesolitonoperationofanerbium-do pedfiberlaser; Opt.Express, vol.17, no.15; pp.12692 – 12697; Jul.2009. " has been reported and has been used saturable absorber, utilizes the birefringence effect in the optical fiber, has realized the mode-locked laser of the multi-wavelength of Totally positive dispersion in Er-doped fiber.Yet the mode locking pulse wavelength is because relevant with polarization state in the chamber, and the locked mode wavelength of each output causes output wavelength to determine owing to polarization in the laser cavity is different.At present, in mixing ytterbium Totally positive dispersion fiber laser, realize that the research of multi-wavelength locked mode does not also have relevant report.
At document " Long-Period Fiber-Grating-Based Filter for Generation of Picosecond and Subpicosecond Transform-Limited Flat-Top Pulses " (Radan Slav í k et al., IEEE PHOTONICS TECHNOLOGY LETTERS, VOL.20, NO.10,2008,806) and document " Long period gratings written in Large mode photonic crystal fiber " (D.Nodop et.al., Appl.Physics.B, 92,2008,509-512), to logical type fiber grating (the Long Period Grating of long period band, LPG) studies show that of filter, adopting the logical type fiber grating filter of long period band is practicable as mode-locked laser pulse compression and optical maser wavelength filter element.This is in Totally positive dispersion cavity, realizes that the multi-wavelength locked mode provides experimental basis, makes the possibility that is designed to of the multi-wavelength mode-locked laser that is operated in the Totally positive dispersion cavity.
Chinese invention patent " Totally positive dispersion cavity mode-locked all-fiber laser " (CN101740995A) in, propose to utilize long period fiber grating to obtain the passive mode locking full-optical-fiber laser of Totally positive dispersion cavity as filter; Wherein, long period fiber grating is only as single band pass filter, because the stationarity of the logical wave band of band can't realize multi-wavelength output.
Summary of the invention
In order to overcome the deficiency that prior art exists, the invention provides a kind of Totally positive dispersion district that is operated in, no chromatic dispersion compensating element, is realized full fiberize, practicability, the multi-wavelength mode-locked laser of output intensity laser pulse.
The technical solution used in the present invention is that the laser of following structure is provided:
A kind of multi-wavelength mode-locked laser, it is the non-polarization-maintaining fiber coil die cavity of the pulse laser that is operated in the Totally positive dispersion district, the mode locking pulse of its output has the different wave length more than two or two; Described laser comprises: the 976nm of band optical fiber coupling output or 915nm pump laser source, 976/1060nm or 915/1064nm wavelength division multiplexer, optical-fiber laser gain media, single mode have the polarization beam apparatus and the monomode fiber coupling isolator of the long period fiber grating of a plurality of band pass filters, monomode fiber that wavelength is 1um, optical fiber polarization controller, optical fiber coupling.
Close design with technique scheme, a kind of multi-wavelength mode-locked laser, it is the non-polarization-maintaining fiber coil die cavity of the pulse laser that is operated in the Totally positive dispersion district, the mode locking pulse of its output has the different wave length more than two or two; Described laser comprises: the 976nm of band optical fiber coupling output or 915nm pump laser source, 976/1060nm or 915/1064nm wavelength division multiplexer, optical-fiber laser gain media, single mode have the long period fiber grating of a plurality of band pass filters, monomode fiber that wavelength is 1um, free space isolator, wavelength at the quarter wave plate of 1064nm, wavelength 1/2 wave plate and the free space polarization beam apparatus at 1064nm.
Long period fiber grating with a plurality of band pass filters of the present invention, the centre wavelength of its fiber grating are 1.0～1.1 μ m, and the number of band pass filter is more than or equal to 2 filters, and the bandwidth range of filter is 4～20nm.
Optical-fiber laser gain media of the present invention is common single mode rare earth doped fiber, or mixes rare earth big core diameter single-mode optical fiber for what adopt the pumping of two multiple layer, or for mixing the big core diameter single-mode photonic crystal fiber of rare earth; The described rare earth of mixing is for mixing Nd
3+
, Yb
3+
Or Er
3+
Compared with prior art, the present invention has the tangible advantage of several respects:
1, the present invention adopts single mode to have the long period fiber grating of a plurality of band pass filters in the annular chamber mode locked fiber laser, whole laser works is in the Totally positive dispersion district, no free space dispersion compensation device or photonic crystal dispersion compensating fiber in the chamber, realized full optical fiber integration structure, this means more stable, the more practicability, and exportable bigger pulsed laser energy of laser cavity.
, in the annular chamber mode locked fiber laser, adopt single mode to have the long period fiber grating of a plurality of band pass filters, make laser design more simplify.
, in the annular chamber mode locked fiber laser, adopt single mode to have the long period fiber grating of a plurality of band pass filters because the long period fiber grating cost of manufacture is low, manufacture craft is simple relatively, has reduced the cost of manufacture of Optical Maser System.
, in the annular chamber mode locked fiber laser, adopt single mode to have the long period fiber grating of a plurality of band pass filters, because long period fiber grating itself is in the natural compatibility of optical fiber, can bear very big laser power, can be useful for high-power, high-octane mode-locked laser.
Description of drawings
Fig. 1 is a kind of Totally positive dispersion district that is operated in that provides by embodiment of the invention technical scheme, and the full optical fiber of multi-wavelength is mixed the structural representation of ytterbium mode-locked laser;
Fig. 2 is a kind of Totally positive dispersion district that is operated in that provides by embodiment of the invention technical scheme, and multi-wavelength is mixed the structural representation of ytterbium mode-locked laser;
Fig. 3 is the transmission spectrum that has the long period optical fiber grating filter of three band pass filters by the preparation of embodiment of the invention technical scheme;
Fig. 4 is the three-wavelength locked mode spectrogram of realizing in Totally positive dispersion cavity by the preparation of embodiment of the invention technical scheme;
Among the figure: 1, the 976nm or the 915nm pump laser source of band optical fiber coupling output; 2,976/1060nm or 915/1064nm wavelength division multiplexer; 3, common single mode is mixed Yb
3+
The optical-fiber laser gain media; 4, single mode has the long period fiber grating of a plurality of band pass filters; 5, wavelength is the monomode fiber of 1um; 6, optical fiber polarization controller; 7, the polarization beam apparatus of optical fiber coupling; 8, monomode fiber coupling isolator; 9, free space isolator; 10, wavelength is at the quarter wave plate of 1064nm; 11, wavelength is at 1/2 wave plate of 1064nm; 12, free space polarization beam apparatus.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Embodiment one: present embodiment provides a kind of locked mode that is operated in the Totally positive dispersion annular chamber to mix Y
b
3+
Fiber laser, it adopts one section single mode to mix the rare earth gain fibre as gain media, described long period fiber grating system in its chamber with a plurality of band pass filters, the centre wavelength of its fiber grating is 1.0～1.1 μ m, the number of band pass filter is more than or equal to 2 filters, each bandwidth range is 4～20nm, as the element of the selection of mode-locked laser centre wavelength and the spectral filtering shaping of light pulse and compression, realizes the vibration of ultrashort pulse laser stable mode-locking.
Referring to accompanying drawing 1, it is a kind of Totally positive dispersion district that is operated in that provides by the present embodiment technical scheme, and the full optical fiber of multi-wavelength is mixed the structural representation of ytterbium mode-locked laser; As seen from Figure 1, the concrete structure of laser is: the 976nm of band optical fiber coupling output or 915nm pump laser source 1 are coupled into single mode by 976/1060nm or 915/1064nm wavelength division multiplexer (WDM) 2 and mix Y
b
3+
Optical-fiber laser gain media 3 produces gain, and the long period fiber grating 4 logical with having a plurality of bands is that 1um monomode fiber 5 is mixed Y with single mode by one section wavelength
b
3+
Optical-fiber laser gain media 3 connects, and this long period fiber grating 4 can be by CO
2
Laser carries out single side face and is fired into, and its centre wavelength is 1.0～1.1 μ m, and band pass filter is two or more filters, and the bandwidth range of each filter is 4～20nm; An optical fiber polarization controller 6 is connected with the long period fiber grating 4 that single mode has a plurality of band pass filters; the effect of optical fiber polarization controller 6 is to adjust the endovenous laser polarization state and produce saturable absorber with other device to produce mode-locked laser pulse; the polarization beam apparatus 7 of an optical fiber coupling is connected with optical fiber polarization controller 6 and constitutes exports the variable laser output mouth of ratio; a monomode fiber coupling isolator 8 is connected with the polarization beam apparatus 7 of optical fiber coupling; the effect of monomode fiber coupling isolator 8 is to guarantee the unidirectional vibration of circular cavity optic fibre laser; another optical fiber polarization controller 6 is connected with monomode fiber coupling isolator 8, and the effect of optical fiber polarization controller is to adjust the polarization state of annular chamber inner laser and form the saturable absorber that passive mode locking produces ultrashort laser pulse with other device.
In the present embodiment, two optical fiber polarization controller, 976/1060nm or 915/1064nm wavelength division multiplexer (WDM), single modes are mixed Y
b
3+
Optical-fiber laser gain media, wavelength are that the polarization beam apparatus and the monomode fiber coupling isolator of the logical type long period fiber grating of 1um monomode fiber, the tunable band of single mode, optical fiber coupling constitutes a laser that utilizes nonlinear polarization rotation lock mould annular chamber; long period fiber grating system 4 with a plurality of band pass filters produces intracavity wavelength and selects and the spectral filtering shaping of light pulse and compression, and two optical fiber polarization controllers, single modes are mixed Y
b
3+
The polarization beam apparatus generation nonlinear polarization rotation of optical-fiber laser gain media, the logical type long period optical fiber grating filter of tunable band, optical fiber coupling can be satisfied and be closed the absorber locked mode.
A kind of multi-wavelength mode-locked laser that present embodiment provides has utilized long period optical fiber grating filter with a plurality of band pass filters to select as mode-locked laser centre wavelength and the element of the spectral filtering shaping of light pulse and compression in the chamber.Pumping laser is coupled into the single mode rare earth doped optical fibre by wavelength division multiplexer (WDM) and produces gain, utilized long period optical fiber grating filter to select as mode-locked laser centre wavelength and the element of the spectral filtering shaping of light pulse and compression in the laser chamber with a plurality of band pass filters, the isolator of an optical fiber coupling is guaranteed the unidirectional vibration of fiber laser, two optical fiber polarization controllers are adjusted the polarization direction of fiber laser endovenous laser, polarization beam apparatus is as the output coupler of mode-locked laser, gain fibre, single mode has the long period fiber grating system of a plurality of band pass filters, isolator, two optical fiber polarization controllers, the nonlinear polarization rotation saturable absorber of the laser that polarization beam apparatus is formed produces stable mode locking pulse.When the long period fiber grating system with a plurality of band pass filters carried out wavelength selection, shaping pulse and pulse compression, mode-locked laser realized that a plurality of wavelength export simultaneously.
Embodiment two: present embodiment provides a kind of locked mode that is operated in the Totally positive dispersion annular chamber to mix Y
b
3+
Fiber laser, it adopts one section single mode to mix the rare earth gain fibre as gain media, the long period fiber grating that has a plurality of band pass filters in its chamber, the centre wavelength of its fiber grating is 1.0～1.1 μ m, three band pass filters are arranged, in the present embodiment, single mode have the long period fiber grating of 3 band pass filters can be by CO
2
Laser carries out single side face and fires and form.Referring to accompanying drawing 3, it is the transmission spectrum that the preparation of present embodiment technical scheme has the phase place long period optical fiber grating filter of three band pass filters; As seen from Figure 3, the centre wavelength of three band pass filters is respectively: 1030.73nm, 1044.47nm and 1056.15nm; Maximum half width is respectively: 7nm, 5.6nm, 7nm, as the element of the selection of mode-locked laser centre wavelength and the spectral filtering shaping of light pulse and compression, realize the vibration of ultrashort pulse laser stable mode-locking.
Referring to accompanying drawing 2, it is the laser cavity structural representation that present embodiment adopts the annular chamber locked mode of nonlinear polarization rotation effect realization; Its concrete annexation is as seen from Figure 2: the 976nm of band optical fiber coupling output or 915nm pump laser source 1 are coupled into single mode by 976/1060nm or 915/1064nm wavelength division multiplexer (WDM) 2 and mix Y
b
3+
Optical-fiber laser gain media 3 produces gain, and a suitable centre wavelength is 1.0～1.1 μ m, and 3 band pass filters, bandwidth range are 3 long period fiber grating 4 that band is logical that have of 4～20nm, and mix Y by the monomode fiber 5 that one section wavelength is 1um with single mode
b
3+
Optical-fiber laser gain media 3 connects; a wavelength is connected with the long period fiber grating 4 that single mode has 3 band pass filters at 1/2 wave plate 11 of 1064nm; wavelength is connected with 1/2 wave plate 11 of wavelength at 1064nm at the quarter wave plate 10 of 1064nm; wavelength is to adjust the endovenous laser polarization state and produce saturable absorber with other device to produce mode-locked laser pulse at quarter wave plate and the wavelength of 1064nm in the effect of 1/2 wave plate of 1064nm; free space polarization beam apparatus 12 and wavelength are connected and constitute the variable laser output mouth of output ratio at the quarter wave plate 10 of 1064nm; a free space isolator 9 is connected with free space polarization beam apparatus 12; the effect of free space isolator 9 is to guarantee the unidirectional vibration of circular cavity optic fibre laser; another wavelength is connected with free space isolator 9 at the quarter wave plate 10 of 1064nm; wavelength is to adjust the polarization state of annular chamber inner laser and form the saturable absorber that passive mode locking produces ultrashort laser pulse with other device in the effect of the quarter wave plate 10 of 1064nm, and wavelength connects and composes a loop laser chamber system at the quarter wave plate of 1064nm and 976/1060nm or 915/1064nm wavelength division multiplexer (WDM) 2.
In the present embodiment, 976/1060nm or 915/1064nm wavelength division multiplexer (WDM), single mode is mixed Y
b
3+
The optical-fiber laser gain media; wavelength is that 1um monomode fiber, single mode have the long period fiber grating of 3 band pass filters; wavelength is at quarter wave plate and 1/2 wave plate of 1064nm; free space polarization beam apparatus, free space isolator constitute a laser that utilizes nonlinear polarization rotation saturable absorber locked mode annular chamber.
In the present embodiment, utilized long period optical fiber grating filter to select as mode-locked laser centre wavelength and the element of the spectral filtering shaping of light pulse and compression in the chamber with a plurality of band pass filters.Pumping laser is coupled into the single mode rare earth doped optical fibre by wavelength division multiplexer (WDM) and produces gain, utilized long period optical fiber grating filter to select as mode-locked laser centre wavelength and the element of the spectral filtering shaping of light pulse and compression in the laser chamber with a plurality of band pass filters, the isolator of an optical fiber coupling is guaranteed the unidirectional vibration of fiber laser,-individual wavelength is adjusted the polarization direction of fiber laser endovenous laser at 1/2 wave plate of 1064nm and two wavelength at the quarter wave plate zone plate of 1064nm, and polarization beam apparatus is as the output coupler of mode-locked laser.Gain fibre, single mode have long period fiber grating system, the isolator of a plurality of band pass filters, wavelength and produce stable mode locking pulse at 1/2 wave plate of 1064nm and two wavelength at the nonlinear polarization rotation saturable absorber of the quarter wave plate zone plate of 1064nm, laser that polarization beam apparatus is formed.When the long period fiber grating system with a plurality of band pass filters carried out wavelength selection, shaping pulse and pulse compression, mode-locked laser realized that a plurality of wavelength export simultaneously.
Referring to accompanying drawing 4, it is the three-wavelength locked mode spectrogram of realizing in Totally positive dispersion cavity by the preparation of present embodiment technical scheme.As seen from Figure 4, because in Totally positive dispersion cavity, the effect that the filtering of the phase place long period optical fiber grating filter of three band pass filters and pulse produce has obtained mixing Yb
3+
Three-wavelength mode locking pulse stable in the optical fiber is exported.
Claims (6)
1. multi-wavelength mode-locked laser, it is characterized in that: it is the non-polarization-maintaining fiber coil die cavity of the pulse laser that is operated in the Totally positive dispersion district, and the mode locking pulse of its output has the different wave length more than two or two; Described laser comprises: the 976nm of band optical fiber coupling output or 915nm pump laser source (1), 976/1060nm or 915/1064nm wavelength division multiplexer (2), optical-fiber laser gain media (3), single mode have the polarization beam apparatus (7) and the monomode fiber coupling isolator (8) of the long period fiber grating (4) of a plurality of band pass filters, monomode fiber (5) that wavelength is 1um, optical fiber polarization controller (6), optical fiber coupling.
2. multi-wavelength mode-locked laser according to claim 1, it is characterized in that: described long period fiber grating (4) with a plurality of band pass filters, the centre wavelength of its fiber grating is 1.0～1.1 μ m, the number of band pass filter is more than or equal to 2 filters, and the bandwidth range of filter is 4～20nm.
3. multi-wavelength mode-locked laser according to claim 1, it is characterized in that: described optical-fiber laser gain media (3) is common single mode rare earth doped fiber, or mix rare earth big core diameter single-mode optical fiber, or for mixing the big core diameter single-mode photonic crystal fiber of rare earth for what adopt the pumping of two multiple layer; The described rare earth of mixing is for mixing Nd
3+, Yb
3+Or Er
3+
4. multi-wavelength mode-locked laser, it is characterized in that: it is the non-polarization-maintaining fiber coil die cavity of the pulse laser that is operated in the Totally positive dispersion district, and the mode locking pulse of its output has the different wave length more than two or two; Described laser comprises: the 976nm or the 915nm pump laser source (1) of band optical fiber coupling output, 976/1060nm or 915/1064nm wavelength division multiplexer (2), optical-fiber laser gain media (3), single mode has the long period fiber grating (4) of a plurality of band pass filters, wavelength is the monomode fiber (5) of 1um, free space isolator (9), wavelength is at the quarter wave plate (10) of 1064nm, wavelength is at 1/2 wave plate (11) and the free space polarization beam apparatus (12) of 1064nm.
5. multi-wavelength mode-locked laser according to claim 4, it is characterized in that: described long period fiber grating (4) with a plurality of band pass filters, the centre wavelength of its fiber grating is 1.0～1.1 μ m, the number of band pass filter is more than or equal to 2 filters, and the bandwidth range of filter is 4～20nm.
6. multi-wavelength mode-locked laser according to claim 4, it is characterized in that: described optical-fiber laser gain media (3) is common single mode rare earth doped fiber, or mix rare earth big core diameter single-mode optical fiber, or for mixing the big core diameter single-mode photonic crystal fiber of rare earth for what adopt the pumping of two multiple layer; The described rare earth of mixing is for mixing Nd
3+, Yb
3+Or Er
3+
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570254A (en) * | 2011-12-14 | 2012-07-11 | 上海大学 | Ultra-short pulse optical fiber laser with nonlinear compensation function |
| CN103618203A (en) * | 2013-12-16 | 2014-03-05 | 北京工业大学 | 980nm dissipative soliton mode-locked laser |
| CN108880688A (en) * | 2017-05-11 | 2018-11-23 | 北京遥感设备研究所 | A kind of dual wavelength ultrashort light pulse source based on external modulation technology |
| CN109273972A (en) * | 2018-10-25 | 2019-01-25 | 中国科学院西安光学精密机械研究所 | A kind of all -fiber femto-second laser |
| CN113675713A (en) * | 2021-08-25 | 2021-11-19 | 吉林大学 | Near-infrared erbium-doped fiber laser |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101132109A (en) * | 2007-07-13 | 2008-02-27 | 华中科技大学 | Dual-wavelength single-longitudinal mode optical fiber ring laser device |
| CN101740995A (en) * | 2009-12-11 | 2010-06-16 | 苏州大学 | Totally positive dispersion cavity mode-locked all-fiber laser |
-
2010
- 2010-11-26 CN CN 201010562644 patent/CN102025096A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101132109A (en) * | 2007-07-13 | 2008-02-27 | 华中科技大学 | Dual-wavelength single-longitudinal mode optical fiber ring laser device |
| CN101740995A (en) * | 2009-12-11 | 2010-06-16 | 苏州大学 | Totally positive dispersion cavity mode-locked all-fiber laser |
Non-Patent Citations (1)
| Title |
|---|
| 《Optics Letters》 20050815 Xiangfei Chen等 Ultranarrow dual-transmission-band fiber Bragg grating filter and its application in a dual-wavelength single-longitudinal-mode fiber ring laser 第2068页摘要,第2069页左栏第2段,右栏第3段,第2070页左栏第2段、图2,4-5 1-6 第30卷, 第16期 2 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570254A (en) * | 2011-12-14 | 2012-07-11 | 上海大学 | Ultra-short pulse optical fiber laser with nonlinear compensation function |
| CN103618203A (en) * | 2013-12-16 | 2014-03-05 | 北京工业大学 | 980nm dissipative soliton mode-locked laser |
| CN108880688A (en) * | 2017-05-11 | 2018-11-23 | 北京遥感设备研究所 | A kind of dual wavelength ultrashort light pulse source based on external modulation technology |
| CN109273972A (en) * | 2018-10-25 | 2019-01-25 | 中国科学院西安光学精密机械研究所 | A kind of all -fiber femto-second laser |
| CN113675713A (en) * | 2021-08-25 | 2021-11-19 | 吉林大学 | Near-infrared erbium-doped fiber laser |
| CN113675713B (en) * | 2021-08-25 | 2022-07-08 | 吉林大学 | Near-infrared erbium-doped fiber laser |
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Application publication date: 20110420 |