CN105607382A - Novel method for generating high-order vector dissipative solitons - Google Patents
Novel method for generating high-order vector dissipative solitons Download PDFInfo
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- CN105607382A CN105607382A CN201610125224.4A CN201610125224A CN105607382A CN 105607382 A CN105607382 A CN 105607382A CN 201610125224 A CN201610125224 A CN 201610125224A CN 105607382 A CN105607382 A CN 105607382A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/3511—Self-focusing or self-trapping of light; Light-induced birefringence; Induced optical Kerr-effect
- G02F1/3513—Soliton propagation
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Abstract
The invention discloses a novel method for generating high-order vector dissipative solitons, and relates to a method. The novel method includes sequentially connecting a wavelength division multiplexer, an erbium optical fiber, an optical fiber coupler, a polarization controller, an optical circulator and a semiconductor saturable absorption mirror with one another by single-mode passive optical fibers to form a positive dispersion optical fiber ring cavity; connecting an output end of the coupler with the polarization controller and a polarization beam splitter; coupling pump laser to a gain optical fiber by the aid of the wavelength division multiplexer and changing double-refraction of the inside of the cavity to generate basic-order vector dissipative solitons; outputting the basic-order vector dissipative solitons via a port of the optical fiber coupler, then introducing phase difference of integer times 2 pi between two polarization components of each basic-order vector dissipative soliton by the aid of the polarization controller, enabling the polarization components to pass the polarization beam splitter at certain angles and then outputting pulses of the high-order vector dissipative solitons. The novel method has the advantages that a polarization component of each obtained high-order vector dissipative soliton is presented as the corresponding single-peak pulse, each other polarization component which is orthogonal to the first polarization component of the corresponding high-order vector dissipative soliton is presented as the corresponding double-peak pulse, and phase difference of pi exists between the two peaks of each high-order vector dissipative soliton.
Description
Technical field
The present invention relates to a kind of method, specifically a kind of high-order vector dissipation orphan production method of based semiconductor saturable absorbing mirror.
Background technology
Having multi solitons component and each orphan's component is coupled and is called vector orphan with identical group velocity the orphan of Propagation. Single-mode fiber all has weak birefringence conventionally, can think in optical fiber and have two orthogonal polarization directions, therefore in single-mode fiber, likely produces vector orphan. First CurtisRMenyuks has foretold ([1] C.R.Menyuk of the vector orphan in optical fiber, " Stabilityofsolitonsinbirefringentopticalfibers.I:Equalpr opagationamplitudes; " Opt.Lett.12,614-616 (1987)). For phase place locking vector orphan, their pulse time domain shape and polarization state remain unchanged in communication process. For the vector orphan of group velocity locking, although fiber birefringence can cause the group velocity of two orthogonal polarized components different, thereby but two polarized components are by being offset centre wavelength from phase-modulation and Cross-phase Modulation, therefore the orphan who produces on two polarization directions in weak birefringence optical fiber can catch mutually, and does as a wholely in optical fiber, to transmit. In optical fiber, the interaction between GVD and non-linear Kerr effect is depended in vector orphan's generation, and in optical fiber laser, vector orphan's generation is also subject to the impact of the gain in chamber and the boundary condition in loss and chamber.
The dissipation orphan who results from positive dispersion fiber laser instrument has abundant dynamic characteristic, has caused researcher's very big interest. The existing institute of base rank vector dissipation orphan's research report ([2] LumingZhao.Dissipativesolitontrappinginnormaldispersion-fiberlasers[J] .Opt.Lett.16 (13), 1902-1904 (2010)), but high-order vector dissipation orphan's formation yet there are no all documents.
Summary of the invention
Not yet to have at present in order solving the problem that produces high-order vector dissipation orphan, to the invention provides a kind of high-order vector dissipation orphan production method of based semiconductor saturable absorbing mirror, realize high-order vector dissipation orphan light pulse output.
This method specific embodiments: required device comprises pumping source, wavelength division multiplexer, Er-doped fiber, photo-coupler, optical circulator, semiconductor saturable absorbing mirror, polarization beam apparatus and two Polarization Controllers; Wherein wavelength division multiplexer is all made up of dispersion compensating fiber with photo-coupler. In wavelength division multiplexer, Er-doped fiber, photo-coupler, optical circulator, semiconductor saturable absorbing mirror and chamber, Polarization Controller is in turn connected into optic fiber ring-shaped cavity by the passive optical fiber of single mode, and the dispersion in whole chamber is for just. Pumping source passes through the pump light input port of wavelength division multiplexer pump light injection fibre annular chamber.
Effectively regulate the phase place between the base rank vector dissipation orphan pairwise orthogonal composition of exporting in chamber by Polarization Controller outside chamber, making phase difference is the integral multiple of 2 π. After Polarization Controller, vector dissipation orphan in base rank is by polarization beam apparatus, and two orthogonal components of base rank vector orphan are projection stack on the transverse axis of polarization beam apparatus and the longitudinal axis respectively. The projection result of transverse axis is that two synchronous superimposed pulses become a unimodal pulse, and longitudinal axis projection result is splitblip, and two peak-to-peak phase differences are π. The invention has the beneficial effects as follows: realize high-order vector dissipation orphan light pulse output.
Brief description of the drawings
Fig. 1 is structure composition schematic diagram of the present invention;
Fig. 2 is the time domain pulse strength of output base rank vector dissipation orphan in chamber;
Fig. 3 is the spectrogram of output base rank vector dissipation orphan in chamber;
Fig. 4 is high-order vector dissipation orphan's time domain pulse strength;
Fig. 5 is high-order vector dissipation orphan's spectrogram;
Detailed description of the invention
As shown in Figure 1, produce high-order vector dissipation orphan's a new method, required device comprises pumping source 1, wavelength division multiplexer 2, Er-doped fiber 3, photo-coupler 4, Polarization Controller 5, optical circulator 6, semiconductor saturable absorbing mirror 7, Polarization Controller 8 and polarization beam apparatus 9; Wavelength division multiplexer 2, Er-doped fiber 3, photo-coupler 4, Polarization Controller 5, optical circulator 6, semiconductor saturable absorbing mirror 7 are in turn connected into positive dispersion fiber annular chamber by the passive optical fiber of single mode, the pump light input port 2a that pumping source 1 passes through wavelength division multiplexer is pump light injection fibre annular chamber, the base rank vector dissipation orphan that in the output 4c output cavity of described photo-coupler 4, vibration produces, Polarization Controller 8 is combined polarization beam apparatus 9 and is changed base rank vector dissipation orphan the pulse of into high-order vector dissipation soliton laser.
In this implementation method, it is the optical fiber laser of 1480nm that described pumping source 1 adopts wavelength. For preventing that remnant pump light from can protect and the infringement of absorbing mirror semiconductor, in this solid yardage method, adopt backward pumping structure, mark A is pump light input. B is high-order vector dissipation orphan's Laser output.
Described wavelength division multiplexer 2 is 1480/1550nm wavelength division multiplexer, and wherein mark 2a, 2b and 2c are respectively pumping end, common port and the signal end of this wavelength division multiplexer.
Described Er-doped fiber 3 adopts the long Er-doped fiber of 2m as gain medium, can select OFSEDF80.
Described photo-coupler 4 adopts 90:10 photo-coupler. Wherein mark 4a, 4b, 4c are respectively input, 90% end, 10% output of this photo-coupler.
Described Polarization Controller 5, for adopting three revolving Polarization Controllers of coil, can be also squash type Polarization Controller. By regulating Polarization Controller to change the birefringence of fiber resonance cavity.
Described semiconductor saturable absorbing mirror 7 is coupled in chamber and is formed optical fiber compatible type device by 6b one end of optical circulator, for realizing the locked mode mechanism of fiber resonance cavity. Wavelength 1550nm centered by available parameter, saturated absorption rate 8%, recovery time 2ps semiconductor saturable absorbing mirror.
Described Polarization Controller 8, for adopting three revolving Polarization Controllers of coil, can be also squash type Polarization Controller. By regulating Polarization Controller to change the phase difference between the vector orphan pairwise orthogonal composition of Wai Ji rank, chamber.
Described polarization beam apparatus 9 is coupling fiber type, centre wavelength 1550nm.
The passive fibre-optical dispersion of described single mode is for just, for connecting each device.
Positive dispersion fiber annular chamber can easily reach mode-lock status, obtains base rank vector dissipation orphan output. If Fig. 2 is the time domain pulse strength that numerical simulation obtains base rank vector dissipation orphan, abscissa is time (Time[ps]), ordinate is light pulse intensity (Intensity[arb.units]), between the pulse of two polarization directions, has time domain interval. Fig. 3 is the spectrogram that numerical simulation obtains base rank vector dissipation orphan, abscissa is wavelength (Wavelength[nm]), ordinate is spectral intensity (SpectralIntensity[dB]), can see that the wavelength of two polarization directions has drift from spectrogram. Compare and adopt nonlinear polarization rotation mode-locking technique, adopt semiconductor saturable absorber mirror mode-locking to there is polarization insensitive, therefore in chamber, can obtain the output of base rank vector dissipation soliton pulse. The vector orphan who obtains in chamber is by the adjusting of Polarization Controller 8 outside chamber, and making the phase difference between pairwise orthogonal composition is the integral multiple of 2 π. After Polarization Controller 8, vector dissipation orphan in base rank is by polarization beam apparatus 9, two orthogonal components of base rank vector orphan respectively on the transverse axis of polarization beam apparatus and the longitudinal axis projection produce high-order vector dissipation orphan.
High-order vector dissipation orphan's time domain intensity is as Fig. 4. Transverse axis is unimodal pulse, and the longitudinal axis is splitblip, has the phase difference of π between two peaks.
High-order vector dissipation orphan's time domain intensity is as Fig. 5. After polarization beam apparatus, form high-order vector dissipation orphan, the central wavelength of the spectrogram of the longitudinal axis has a dark ditch.
The present invention effectively regulates the phase place between the base rank vector dissipation orphan pairwise orthogonal composition of exporting in chamber by Polarization Controller outside chamber, in the time that phase difference is the integral multiple of 2 π, polarization beam apparatus changes base rank vector dissipation orphan into high-order vector dissipation orphan's output, the high-order vector dissipation orphan light pulse output that the inventive method realizes, still belongs to the first time.
Claims (10)
1. a new method that produces high-order vector dissipation orphan, is characterized in that: comprise pumping source (1), wavelength division multiplexer (2), Er-doped fiber (3), photo-coupler (4), Polarization Controller (5), optical circulator (6), semiconductor saturable absorbing mirror (7) and Polarization Controller (8), polarization beam apparatus (9), wavelength division multiplexer (2), Er-doped fiber (3), photo-coupler (4), Polarization Controller (5), optical circulator (6), semiconductor saturable absorbing mirror (7) is in turn connected into optic fiber ring-shaped cavity by the passive optical fiber of single mode, pumping source (1) passes through the pump light input port of wavelength division multiplexer pump light injection fibre annular chamber, the base rank vector dissipation orphan that in the output output cavity of described photo-coupler (5), vibration produces, Polarization Controller (8) associating polarization beam apparatus (9) changes base rank vector dissipation orphan the pulse of into high-order vector dissipation soliton laser.
2. a kind of new method that produces high-order vector dissipation orphan as claimed in claim 1, is characterized in that: the semiconductor laser that described pumping source (1) is Single-Mode Fiber Coupling, its centre wavelength is positioned at 1480nm.
3. a kind of new method that produces high-order vector dissipation orphan as claimed in claim 1, is characterized in that: the operation wavelength of described wavelength division multiplexer (2) is 1480/1550nm, is made up of dispersion compensating fiber.
4. a kind of new method that produces high-order vector dissipation orphan as claimed in claim 1, is characterized in that: described Er-doped fiber (3) is as gain medium.
5. a kind of new method that produces high-order vector dissipation orphan as claimed in claim 1, is characterized in that: described fiber coupler (4) is made up of dispersion compensating fiber.
6. a kind of new method that produces high-order vector dissipation orphan as claimed in claim 1, is characterized in that: semiconductor saturable absorbing mirror (7) is coupled into formation optical fiber compatible type device in chamber by 6b one end of optical circulator (6).
7. a kind of new method that produces high-order vector dissipation orphan as claimed in claim 1, is characterized in that: described Polarization Controller (5), (8) are the rotary or squash type of three coils.
8. a kind of new method that produces high-order vector dissipation orphan as claimed in claim 1, is characterized in that: described polarization beam apparatus (9) is coupling fiber type.
9. a kind of new method that produces high-order vector dissipation orphan as claimed in claim 1, concrete steps are as follows: effectively regulate the phase place between the base rank vector dissipation orphan pairwise orthogonal composition of exporting in chamber by Polarization Controller outside chamber, the orphan of base rank vector dissipation is subsequently by polarization beam apparatus, and two orthogonal components of base rank vector orphan are projection on the transverse axis of polarization beam apparatus and the longitudinal axis respectively. When the phase difference between pairwise orthogonal composition is the integral multiple of 2 π and when suitable with the incident angle of beam splitter, projection result produces high-order vector dissipation orphan.
10. a kind of new method that produces high-order vector dissipation orphan as claimed in claim 1, is characterized in that: outside chamber, Polarization Controller can regulate the phase space that covers whole 2 π; 2 output port optical fiber used of the polarization beam apparatus of coupling fiber are polarization maintaining optical fibre, and the high-order vector dissipation orphan who therefore obtains exports and can keep its polarization state.
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| CN201610125224.4A CN105607382A (en) | 2016-03-04 | 2016-03-04 | Novel method for generating high-order vector dissipative solitons |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911060A (en) * | 2017-03-30 | 2017-06-30 | 电子科技大学 | The high-efficiency high power middle infrared laser of Wavelength tunable |
| CN109327257A (en) * | 2018-10-22 | 2019-02-12 | 上海交通大学 | Optics Instantaneous Frequency Measurement device |
| CN114006659A (en) * | 2021-10-29 | 2022-02-01 | 中国地质大学（武汉） | High-order vector soliton generation system and method based on passive resonant cavity |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100296527A1 (en) * | 2008-09-25 | 2010-11-25 | Ofs Fitel Llc | Passively modelocked fiber laser using carbon nanotubes |
| CN105140766A (en) * | 2015-09-16 | 2015-12-09 | 江苏师范大学 | Higher-order group-velocity locked vector soliton laser and generating method |
-
2016
- 2016-03-04 CN CN201610125224.4A patent/CN105607382A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100296527A1 (en) * | 2008-09-25 | 2010-11-25 | Ofs Fitel Llc | Passively modelocked fiber laser using carbon nanotubes |
| CN105140766A (en) * | 2015-09-16 | 2015-12-09 | 江苏师范大学 | Higher-order group-velocity locked vector soliton laser and generating method |
Non-Patent Citations (1)
| Title |
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| L.M.ZHAO ET AL.: "Dissipative soliton trapping in normal dispersion-fiber lasers", 《OPTICS LETTERS》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911060A (en) * | 2017-03-30 | 2017-06-30 | 电子科技大学 | The high-efficiency high power middle infrared laser of Wavelength tunable |
| CN106911060B (en) * | 2017-03-30 | 2019-01-22 | 电子科技大学 | The high-efficiency high power mid-infrared laser device of Wavelength tunable |
| CN109327257A (en) * | 2018-10-22 | 2019-02-12 | 上海交通大学 | Optics Instantaneous Frequency Measurement device |
| CN114006659A (en) * | 2021-10-29 | 2022-02-01 | 中国地质大学（武汉） | High-order vector soliton generation system and method based on passive resonant cavity |
| CN114006659B (en) * | 2021-10-29 | 2023-06-06 | 中国地质大学（武汉） | High-order vector soliton generation system and method based on passive resonant cavity |
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Application publication date: 20160525 |