CN106054492A - Graphene quantum dot optical fiber amplifier - Google Patents
Graphene quantum dot optical fiber amplifier Download PDFInfo
- Publication number
- CN106054492A CN106054492A CN201610535946.7A CN201610535946A CN106054492A CN 106054492 A CN106054492 A CN 106054492A CN 201610535946 A CN201610535946 A CN 201610535946A CN 106054492 A CN106054492 A CN 106054492A
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- Prior art keywords
- graphene quantum
- optical fiber
- quantum dot
- light
- quantum dots
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- 239000002096 quantum dot Substances 0.000 title claims abstract description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 35
- 239000013307 optical fiber Substances 0.000 title claims abstract description 21
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 230000005855 radiation Effects 0.000 claims abstract description 3
- 239000000835 fiber Substances 0.000 claims description 40
- 239000004038 photonic crystal Substances 0.000 claims description 18
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 230000001413 cellular effect Effects 0.000 claims description 5
- 239000010409 thin film Substances 0.000 claims description 5
- -1 graphite Alkene Chemical class 0.000 claims description 4
- 230000004313 glare Effects 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 210000000988 bone and bone Anatomy 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000005286 illumination Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000004891 communication Methods 0.000 abstract description 7
- 239000013078 crystal Substances 0.000 abstract description 7
- 230000003321 amplification Effects 0.000 abstract description 6
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 6
- 238000002474 experimental method Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 7
- 239000000126 substance Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000000862 absorption spectrum Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000382 optic material Substances 0.000 description 1
- 238000000103 photoluminescence spectrum Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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- 230000007480 spreading Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- G02F1/39—Non-linear optics for parametric generation or amplification of light, infrared or ultraviolet waves
- G02F1/395—Non-linear optics for parametric generation or amplification of light, infrared or ultraviolet waves in optical waveguides
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The invention discloses a graphene quantum dot optical fiber amplifier which can be applied in the fields of photonics experiment and optical fiber communication. The graphene quantum dot optical fiber amplifier comprises a hollow core photonics crystal optical fiber and an optical filter, wherein the inner hollow core area of the hollow core photonics crystal optical fiber and the inner wall of air micropores are both deposited with one layer of film spread with graphene quantum dots, and the tail end of the film is provided with the optical filter with given wavelength. The graphene quantum dot optical fiber amplifier has the following working principle: according to a situation that pump light is adsorbed by the graphene quantum dots coated on the inner wall of the optical fiber micropores when the pump light is transmitted in the hollow core photonics crystal optical fiber, the graphene quantum dots are jumped to a high-energy band, the graphene quantum dots can be jumped to a lower energy band after being induced by a signal light, identical photons can be generated after the graphene quantum dots are subjected to stimulated radiation, and stray light is filtered through the optical filter with he given wavelength so as to realize an amplification function on the intensity of the signal light. Since the graphene quantum dots are adopted as gain substances, the signal light can be efficiently amplified on the basis of the advantages of the graphene quantum dots. In addition, the hollow core photonics crystal optical fiber is adopted as a system body and can be directly embedded into the optical fiber system, optical transmission loss is lowered, and light conversion efficiency is improved.
Description
Technical field
The present invention relates to a kind of novel graphite alkene quanta point optical fiber can applied in optoelectronics and fiber optic communication field
Amplifier, can excite graphene quantum dot and flashlight induction stimulated emission to produce specific fluorescent by pump light in a fiber,
Thus realize the enlarging function to signal light intensity, and there is conversion efficiency high, the advantages such as pump wavelength adjustable extent is wide, belong to
Optoelectronic device technology field.
Background technology
Semiconductor-quantum-point is a kind of transition state semiconductor nano material between molecule and crystal, and its particle diameter is close
Or the Bohr radius less than exciton, thus by exciton confinement on three-dimensional space direction, show quantum confined effect.As one
Kind of zero-dimension nano granule, quantum dot can under the exciting of exciting light generation fluorescence, there is optical property and the electrical property of uniqueness
Matter, as fluorescence intensity is high, resistance to photobleaching, excitation wavelength range width etc..Graphene is that a kind of honeycomb being made up of carbon atom is brilliant
Lattice film two-dimensional nano material, the size of its thickness only one of which carbon atom diameter.When the lateral dimension of Graphene is contracted to 100
Time below nanometer, produce unique quantum confined effect, therefore, be referred to as graphene quantum dot.The internal electricity of graphene quantum dot
Son motion in all directions is all limited to, and has the character of uniqueness, in material science, semiconductor device, biomedicine
Research field has important using value.Particle diameter has good fluorescent characteristic at the graphene quantum dot of 10 ~ 40nm, relies on
Difference in particle diameter, it is possible to absorb the exciting light (270 ~ 450nm) of relative broad range, launches the fluorescence between 400 ~ 500nm, therefore
In terms of light wavelength conversion and amplification, there is application potential.Amplifier conventional in Fibre Optical Sensor and fiber optic communication field is usual
It is a kind of custom-designed device, needs to be optically coupled in amplifier, after the emergent light after being amplified is again coupled into
In continuous device, increase loss undoubtedly, reduce conversion efficiency.But, the hollow-core photonic crystal fiber developed in the last few years,
Due to micro-pipe of periodic arrangement and the cavity structure of its uniqueness, can be as the carrier of quantum dot attachment, the light transmitted with it enters
Row interacts, so that light amplifies the most in a fiber, it is thus achieved that higher conversion efficiency, leads at Fibre Optical Sensor and fiber optic communication
Territory plays a significant role.
Achievement of the present invention is exactly through research and probe under above-mentioned background, develops in constantly testing, debug and optimizing
A kind of novel graphite alkene quantum dot light fiber amplifier.The present invention uses inner dispersion to be attached with the air-core photonic of graphene quantum dot
Crystal optical fibre, using pump light as exciting the energy source of graphene quantum dot, stimulated radiation under the induced modulation of flashlight, produce
Raw fluorescence, thus realize the enlarging function to flashlight.Owing to the junction loss between optical fiber is less, therefore can obtain higher
Conversion efficiency.Simultaneously again due to the absorption spectra that graphene quantum dot is wider, therefore there is the relatively broad suitability.
Summary of the invention
In order to solve prior art problem, it is an object of the invention to the deficiency overcoming prior art to exist, meet day by day
The photonic device experiment increased and the demand of research and development, it is provided that a kind of simple in construction, conversion efficiency is high, the Graphene that the suitability is strong
Quantum dot light fiber amplifier.
To achieve the above object of the invention, the present invention adopts the following technical scheme that
A kind of novel graphite alkene quantum dot light fiber amplifier, including hollow-core photonic crystal fiber, graphene quantum dot and optical filter.
The structure of apparatus of the present invention is: on the inwall of described hollow-core photonic crystal fiber inner hollow core region and air cellular
Uniform deposition one layer spreads the thin film of graphene quantum dot, and its end places the optical filter of a specific wavelength.
The operation principle of apparatus of the present invention is: when pump light and flashlight transmit in hollow-core photonic crystal fiber, is coated with
The graphene quantum dot overlayed on optical fiber micropore inwall is absorbed, so that graphene quantum dot transits to higher energy band, passes through
The induced modulation of flashlight, then, its energy band transition downwards, the complete same photon of stimulated emission, produce fluorescence, then pass through specific wavelength
Optical filter filter veiling glare, it is achieved thereby that the enlarging function to flashlight.
The structure of wherein said hollow-core photonic crystal fiber is wound on sky by the radially micro-circumference of cannon bone of air in periodic arrangement
Gas fiber core is constituted, and the air cellular of these wavelength magnitude constrains light in core region transmission.The micro-pipe of its air and air
Deposit on the inwall of fibre core or coat last layer spread graphene quantum dot thin film as gain media, incident intensity is entered
Row amplifies.
The present invention compared with prior art, has and the most obviously highlights substantive distinguishing features and remarkable advantage:
1. apparatus of the present invention use graphene quantum dot as working media, compared to traditional semiconductor-quantum-point, have relatively
Wide absorption spectra, requires relatively low to pump light source selectivity, substantially increases the suitability of this device.It addition, Graphene quantum
The photoluminescence spectra of point is the most sensitive to its size, therefore, it can the graphite by dispersion attachment different-grain diameter size
Alkene quantum dot, amplifies the flashlight of different wave length, to meet different demands.
2. apparatus of the present invention use hollow-core photonic crystal fiber to constrain light in core region transmission, compared to ordinary optic fibre
Light wave is transmitted, it is possible to largely reduce fluorescence interference, dispersion and scattering that fiber optic materials self produces in solid fibre core
Impact.Additionally, hollow-core photonic crystal fiber comprises substantial amounts of micro-tubular structure, it is simple to the attachment of graphene quantum dot so that it is system
Make simple, with low cost.
3. apparatus of the present invention are using optical fiber itself as the main body of amplifier, can be directly embedded into photonic device system or light
Among fiber communication network system, need Space Coupling light path with traditional wavelength shifter compared with, be lost less and efficiency be higher.
Accompanying drawing explanation
Fig. 1 is graphene quantum dot fiber amplifier structural representation.
Fig. 2 is hollow-core photonic crystal fiber cross sectional representation.
Detailed description of the invention
Details are as follows for the preferred embodiments of the present invention
Embodiment one:
In the present embodiment, seeing Fig. 1, this graphene quantum dot fiber amplifier, including hollow-core photonic crystal fiber (1) and filter
Mating plate (3), it is characterised in that: on the inwall of described hollow-core photonic crystal fiber (1) inner hollow core region and air cellular uniformly
Depositing one layer of thin film spreading graphene quantum dot (2), its end places the optical filter (3) of a setted wavelength.
This system work time, first by corresponding to graphene quantum dot (2) absorption spectra wavelength pump light with carry letter
The flashlight of breath is coupled into the entrance of system, the i.e. end face of hollow-core photonic crystal fiber (1) simultaneously.By hollow photon crystal
The impact of the effect of contraction of the periodicity micro-tubular structure in optical fiber (1), pump light and flashlight transmit, simultaneously in core region
Contact with the graphene quantum dot (2) of attachment in hollow-core photonic crystal fiber (1) internal micro-tubes.According in quantum-mechanical theory
Quantum confined effect, the small graphene quantum dot (2) of size has the most considerable energy gap, is excited by extraneous light field
After, transit to high energy band.Simultaneously under the induction of flashlight, the graphene quantum dot (2) being in high energy band transits to downwards low
Can carry, and launch photon, be the fluorescence of generation.These photons carry the information modulated identical with flashlight, then warp
Crossing optical filter (3) and filter veiling glare, the light of the information of carrying the most just obtaining amplification exports from system.
The flashlight of input can be amplified by the present embodiment, can reach the purpose of design.
Embodiment two:
The present embodiment is essentially identical with embodiment one, is particular in that:
In the present embodiment, native system can be directly embedded in the optical fiber of photonic propulsion experiment or communication, it is achieved the merit of amplification
Energy.Specifically, the hollow-core photonic crystal fiber (1) of this device is directly connected to photonic propulsion experiment or optical fiber communication, light
Light in road is directly transferred into hollow-core photonic crystal fiber (1), has an effect with graphene quantum dot therein (2), it is achieved
Directly input after power amplification in follow-up fibre system.Owing to loss of fibre-optical connection is less than space optical path coupling loss, therefore,
The efficiency of light amplification in photonic propulsion experiment or telecommunication optical fiber system can be improved, and globality and the system of system can be embodied
One property.
Above in conjunction with accompanying drawing, the embodiment of the present invention is illustrated, but the invention is not restricted to above-described embodiment, it is also possible to
The purpose of the innovation and creation according to the present invention makes multiple change, under all spirit according to technical solution of the present invention and principle
The change made, modifying, substitute, combine, simplify, all should be the substitute mode of equivalence, as long as meeting the goal of the invention of the present invention, only
Protection scope of the present invention is broadly fallen into without departing substantially from the know-why of the present invention and inventive concept.
Claims (2)
1. a graphene quantum dot fiber amplifier, including hollow-core photonic crystal fiber (1) and optical filter (3), its feature exists
In: on the inwall of described hollow-core photonic crystal fiber (1) inner hollow core region and air cellular, uniform deposition one layer spreads graphite
The thin film of alkene quantum dot (2), its end places the optical filter (3) of a setted wavelength；Operation principle: according to pump light at hollow light
In photonic crystal fiber (1) during transmission, the graphene quantum dot (2) being applied on optical fiber micropore inwall absorbs, so that graphite
Alkene quantum dot (2) transits to higher energy band, and the induction backward lower energy band transition through flashlight, stimulated radiation produces shares the same light entirely
Son, then filter veiling glare by the optical filter (3) of setted wavelength, it is achieved thereby that the enlarging function to signal light intensity.
Graphene quantum dot fiber amplifier the most according to claim 1, it is characterised in that: described hollow-core photonic crystal fiber
(1) structure is wound on around air-core by the radially micro-circumference of cannon bone of air in periodic arrangement and constitutes, these wavelength magnitude
Air cellular constrains light in core region transmission, the inwall of the micro-pipe of its air and air-core deposits or coats last layer and dissipates
Incident illumination, as gain media, is amplified by cloth graphene quantum dot (2) thin film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610535946.7A CN106054492A (en) | 2016-07-10 | 2016-07-10 | Graphene quantum dot optical fiber amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610535946.7A CN106054492A (en) | 2016-07-10 | 2016-07-10 | Graphene quantum dot optical fiber amplifier |
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| CN106054492A true CN106054492A (en) | 2016-10-26 |
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| CN201610535946.7A Pending CN106054492A (en) | 2016-07-10 | 2016-07-10 | Graphene quantum dot optical fiber amplifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068241A (en) * | 2020-09-24 | 2020-12-11 | 西安科技大学 | Terahertz photonic crystal fiber composite waveguide based on graphene coating |
| CN116429080A (en) * | 2023-06-13 | 2023-07-14 | 中国船舶集团有限公司第七〇七研究所 | Gyroscope based on high-stability hollow microstructure optical fiber ring |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5881200A (en) * | 1994-09-29 | 1999-03-09 | British Telecommunications Public Limited Company | Optical fibre with quantum dots |
| US20050111805A1 (en) * | 2003-06-09 | 2005-05-26 | Erik Hertz | Optical fiber with quantum dots |
| CN103320125A (en) * | 2013-06-06 | 2013-09-25 | 上海大学 | Multicolor fluorescence fluorescent graphene quantum dot material preparation method |
| CN105567227A (en) * | 2016-01-16 | 2016-05-11 | 上海大学 | Method for extracting graphene quantum dots from coffee-ground solid waste |
-
2016
- 2016-07-10 CN CN201610535946.7A patent/CN106054492A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5881200A (en) * | 1994-09-29 | 1999-03-09 | British Telecommunications Public Limited Company | Optical fibre with quantum dots |
| US20050111805A1 (en) * | 2003-06-09 | 2005-05-26 | Erik Hertz | Optical fiber with quantum dots |
| CN103320125A (en) * | 2013-06-06 | 2013-09-25 | 上海大学 | Multicolor fluorescence fluorescent graphene quantum dot material preparation method |
| CN105567227A (en) * | 2016-01-16 | 2016-05-11 | 上海大学 | Method for extracting graphene quantum dots from coffee-ground solid waste |
Non-Patent Citations (2)
| Title |
|---|
| CHENG CHENG等: "Characteristics of bandwidth, gain and noise of a PbSe quantum dot-doped fiber amplifier", 《OPTICS COMMUNICATIONS》 * |
| WANG ET AL.: "Common Origin of Green Luminescence in Carbon Nanodots and Graphene Quantum Dots", 《ACS NANO》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068241A (en) * | 2020-09-24 | 2020-12-11 | 西安科技大学 | Terahertz photonic crystal fiber composite waveguide based on graphene coating |
| CN116429080A (en) * | 2023-06-13 | 2023-07-14 | 中国船舶集团有限公司第七〇七研究所 | Gyroscope based on high-stability hollow microstructure optical fiber ring |
| CN116429080B (en) * | 2023-06-13 | 2023-08-18 | 中国船舶集团有限公司第七〇七研究所 | Gyroscope based on high-stability hollow microstructure optical fiber ring |
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