CN106054316A - Integrated all-fiber interference-type light modulator based on graphene and manufacturing method thereof - Google Patents
Integrated all-fiber interference-type light modulator based on graphene and manufacturing method thereof Download PDFInfo
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- CN106054316A CN106054316A CN201610659296.7A CN201610659296A CN106054316A CN 106054316 A CN106054316 A CN 106054316A CN 201610659296 A CN201610659296 A CN 201610659296A CN 106054316 A CN106054316 A CN 106054316A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2821—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
An integrated all-fiber interference-type light modulator based on graphene is formed by two connection fiber segments, a D-type fiber segment and a graphene sheet. Besides, based on the above structure scheme, the invention also provides a manufacturing method. The modulator possesses advantages that the structure is compact; stability is good; an integrated level is high and so on. And by using the modulator, selection flexibility and convenience of a pump light wavelength can be greatly increased.
Description
Technical field
The present invention relates to a kind of interference-type photomodulator, particularly relate to a kind of integrated form full optical fiber interference based on Graphene
Type photomodulator and manufacture method.
Background technology
In existing communication system, although information can realize remote jumbo biography by optical signal in optical cable
Defeated, but need nonetheless remain in the sending and receiving end of information being turned to carry out optical signal and the mutual of the signal of telecommunication by electric light and photoelectric conversion device
Change, owing to being limited to modulation and the detection rate of the signal of telecommunication so that information transmission exists " electronic bottleneck ", and it is high that this results in optical fiber
The enormous bandwidth capacity reaching 30THz cannot be fully used.
In order to solve aforesaid " electronic bottleneck " problem, those skilled in the art propose the concept of " all optical communication ", i.e.
Carry out transmission and the conversion of signal in the optical domain, to avoid the conversion between light and electricity, electricity and light, so that communication system is thorough
Break away from the constraint of " electronic bottleneck ", to this end, urgently propose a kind of high performance full photomodulator.
Summary of the invention
For the problem in background technology, the present invention proposes a kind of integrated form full optical fiber interference type light based on Graphene
Manipulator, its innovation is: described integrated form full optical fiber interference type photomodulator based on Graphene is connected fiber segment by two
(connecting fiber segment uses single-mode fiber to make), D-type optical fiber section and graphene film composition；The D profile of described D-type optical fiber section and D
Between the fibre core of type fiber segment spaced；The coat of described connection fiber segment and D-type optical fiber section is removed in advance；D type
One end of fiber segment is connected fiber segment and connects with one of them, and the other end of D-type optical fiber section is connected fiber segment and connects with another,
Two fibre cores connecting fiber segment are coaxial, and the fibre core of D-type optical fiber section is arranged with the fibre core core shift being connected fiber segment, and D-type optical fiber
The fibre core of section is overlapping with the core segment connecting fiber segment；The structure being made up of connection fiber segment and D-type optical fiber section is formed
Mach-Zahnder interference structure；Described graphene film is arranged in the D profile of D-type optical fiber section, and D profile is all covered by graphene film
Lid.
The principle of the present invention is: when the pump light entered from one end of manipulator is transferred to D-type optical fiber, suddenly dying of pump light
Field can contact with graphene film, so that the electron transition in Graphene valence band is to conduction band, transits to the Electronic Coincidence Means expense of conduction band
Rice-dirac is distributed, and the electronics caused in Graphene band structure distribution is changed by this process；Same at input pumping light
Time, detection light enters D-type optical fiber from the other end of manipulator, when the evanscent field of detection light contacts with graphene film, due to graphite
Electronics distribution during alkene can carry there occurs change under the effect of pump light, now, will produce Pauli blocking effect, enter
And cause graphene film that the absorption of detection light is reduced, thus detection light is played modulating action；Based on Graphene band structure
Understanding with the characteristic of Mach-Zahnder interference structure, when the detection light of different wave length simultaneously enters manipulator, we can pass through
Under the conditions of the change of interference spectrum obtains current pump wavelength very easily, different wave length is detected the modulation effect of light
Really, meanwhile, in this manipulator, pump wavelength can be more than detection optical wavelength, it is also possible to less than detection optical wavelength, can be right
Detection light produces modulation effect；The pump light of different wave length is different, so that we can root to the modulation effect of detection light
Selecting the wavelength of pump light according to modulation effect, compared to other full photomodulators existing, it is tight that the present invention has structure
Gather, good stability, integrated level advantages of higher, and the present invention can also obtain for selecting the motility of pump wavelength and convenience
To being greatly improved.
Based on aforementioned structure scheme, the invention allows for a kind of integrated form full optical fiber interference type light based on Graphene and adjust
The manufacture method of device processed, the structure of described integrated form full optical fiber interference type photomodulator based on Graphene is as it was previously stated, concrete
Manufacture method be:
1) prefabricated connection fiber segment, D-type optical fiber section and graphene film；Described graphene film uses cuprio growth pattern to prepare, stone
The ink size of alkene sheet is mated with the D profile in D-type optical fiber section；
2) coat connecting fiber segment and D-type optical fiber section is removed；
3) use heat sealing machine, the two ends of D-type optical fiber section are connected with two respectively fiber segment welding, two fibres connecting fiber segment
Core is coaxial, and the fibre core of D-type optical fiber section is arranged with the fibre core core shift being connected fiber segment；After welding, connect fiber segment and D-type optical fiber section
The structure formed i.e. forms Mach-Zahnder interference structure；
4) graphene film is separated with cuprio (concrete separation means can use common chemical replacement method, such as uses tri-chlorination
Copper is removed by ferrous solution), then graphene film is transferred in the D profile of D-type optical fiber section (after graphene film contacts with D profile,
Stably can link together under the surface tension effects of material), integrated form full optical fiber interference type light based on Graphene is adjusted
Device processed completes.
The method have the benefit that: propose a kind of integrated form full optical fiber interference type light modulation based on Graphene
Device and manufacture method, this manipulator has compact conformation, good stability, integrated level advantages of higher, and can also make pumping light wave
Long selection motility and convenience are largely increased.
Accompanying drawing explanation
Fig. 1, the generalized section of the present invention；
In figure, the title corresponding to each labelling is respectively as follows: connection fiber segment 1, D-type optical fiber section 2, graphene film 3.
Detailed description of the invention
A kind of integrated form full optical fiber interference type photomodulator based on Graphene, its innovation is: described based on Graphene
Integrated form full optical fiber interference type photomodulator by two connect fiber segments 1, D-type optical fiber section 2 and graphene film 3 form；Described D
Between D profile and the fibre core of D-type optical fiber section 2 of type fiber segment 2 spaced；Described connection fiber segment 1 and D-type optical fiber section 2
Coat is removed in advance；One end of D-type optical fiber section 2 is connected fiber segment 1 and connects with one of them, another of D-type optical fiber section 2
End is connected fiber segment 1 with another and connects, the fibre cores of two connection fiber segments 1 coaxially, the fibre core of D-type optical fiber section 2 be connected light
The fibre core core shift of fine section 1 is arranged, and the fibre core of D-type optical fiber section 2 is overlapping with the core segment connecting fiber segment 1；By connecting optical fiber
The structure that section 1 and D-type optical fiber section 2 are formed forms Mach-Zahnder interference structure；Described graphene film 3 is arranged at D-type optical fiber
In the D profile of section 2, D profile is all covered by graphene film 3.
A kind of manufacture method of integrated form full optical fiber interference type photomodulator based on Graphene, described based on Graphene
Integrated form full optical fiber interference type photomodulator is connected fiber segment 1, D-type optical fiber section 2 and graphene film 3 by two and forms；Described D type
Between D profile and the fibre core of D-type optical fiber section 2 of fiber segment 2 spaced；Described connection fiber segment 1 and the painting of D-type optical fiber section 2
Coating is removed in advance；One end of D-type optical fiber section 2 is connected fiber segment 1 and connects with one of them, the other end of D-type optical fiber section 2
Being connected fiber segment 1 to connect with another, two fibre cores connecting fiber segments 1 are coaxial, the fibre core of D-type optical fiber section 2 be connected optical fiber
The fibre core core shift of section 1 is arranged, and the fibre core of D-type optical fiber section 2 is overlapping with the core segment connecting fiber segment 1；By connecting fiber segment 1
The structure formed with D-type optical fiber section 2 forms Mach-Zahnder interference structure；Described graphene film 3 is arranged at D-type optical fiber section 2
D profile on, D profile is all covered by graphene film 3；Its innovation is: aforesaid integrated form all-fiber based on Graphene
Interference-type photomodulator makes as follows:
1) prefabricated connection fiber segment 1, D-type optical fiber section 2 and graphene film 3；Described graphene film 3 uses cuprio growth pattern system
, the size of graphene film 3 is mated with the D profile in D-type optical fiber section 2；
2) coat connecting fiber segment 1 and D-type optical fiber section 2 is removed；
3) using heat sealing machine, the two ends of D-type optical fiber section 2 are connected with two fiber segment 1 welding respectively, two connect fiber segment 1
Fibre core coaxial, the fibre core of D-type optical fiber section 2 and the fibre core core shift setting being connected fiber segment 1；After welding, connect fiber segment 1 and D
The structure that type fiber segment 2 is formed i.e. forms Mach-Zahnder interference structure；
4) graphene film 3 is separated with cuprio (during concrete operations, the graphene film after separating with cuprio put in distilled water remove
Impurity), then graphene film 3 is transferred in the D profile of D-type optical fiber section 2, integrated form full optical fiber interference type based on Graphene
Photomodulator completes.
Claims (2)
1. an integrated form full optical fiber interference type photomodulator based on Graphene, it is characterised in that: described based on Graphene
Integrated form full optical fiber interference type photomodulator is connected fiber segment (1), D-type optical fiber section (2) and graphene film (3) by two and forms；
Between D profile and the fibre core of D-type optical fiber section (2) of described D-type optical fiber section (2) spaced；Described connection fiber segment (1) and D
The coat of type fiber segment (2) is removed in advance；One end of D-type optical fiber section (2) is connected fiber segment (1) even with one of them
Connecing, the other end of D-type optical fiber section (2) is connected fiber segment (1) and connects with another, and two fibre cores connecting fiber segment (1) are coaxial,
The fibre core of D-type optical fiber section (2) and be connected fiber segment (1) fibre core core shift arrange, and the fibre core of D-type optical fiber section (2) be connected light
The core segment of fine section (1) is overlapping；The structure being made up of connection fiber segment (1) and D-type optical fiber section (2) forms Mach Zeng De
Interference structure；Described graphene film (3) is arranged in the D profile of D-type optical fiber section (2), and D profile is all covered by graphene film (3)
Lid.
2. a manufacture method for integrated form full optical fiber interference type photomodulator based on Graphene, described collection based on Graphene
Accepted way of doing sth full optical fiber interference type photomodulator is connected fiber segment (1), D-type optical fiber section (2) and graphene film (3) by two and forms；Institute
State between the D profile of D-type optical fiber section (2) and the fibre core of D-type optical fiber section (2) spaced；Described connection fiber segment (1) and D type
The coat of fiber segment (2) is removed in advance；One end of D-type optical fiber section (2) is connected fiber segment (1) and connects with one of them, D
The other end of type fiber segment (2) is connected fiber segment (1) and connects with another, and two fibre cores connecting fiber segment (1) are coaxial, D type
The fibre core of fiber segment (2) and be connected fiber segment (1) fibre core core shift arrange, and the fibre core of D-type optical fiber section (2) be connected fiber segment
(1) core segment is overlapping；The structure being made up of connection fiber segment (1) and D-type optical fiber section (2) forms Mach-Zahnder interference
Structure；Described graphene film (3) is arranged in the D profile of D-type optical fiber section (2), and D profile is all covered by graphene film (3)；Its
It is characterised by: aforesaid integrated form full optical fiber interference type photomodulator based on Graphene makes as follows:
1) prefabricated connection fiber segment (1), D-type optical fiber section (2) and graphene film (3)；Described graphene film (3) uses cuprio growth
Mode prepares, and the size of graphene film (3) is mated with the D profile in D-type optical fiber section (2)；
2) coat that will connect fiber segment (1) and D-type optical fiber section (2) removes；
3) using heat sealing machine, the two ends of D-type optical fiber section (2) are connected with two fiber segment (1) welding respectively, two connect optical fiber
The fibre core of section (1) is coaxial, and the fibre core of D-type optical fiber section (2) is arranged with the fibre core core shift being connected fiber segment (1)；After welding, connect light
The structure that fine section (1) and D-type optical fiber section (2) are formed i.e. forms Mach-Zahnder interference structure；
4) graphene film (3) is separated with cuprio, then graphene film (3) is transferred in the D profile of D-type optical fiber section (2), base
Integrated form full optical fiber interference type photomodulator in Graphene completes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610659296.7A CN106054316A (en) | 2016-08-12 | 2016-08-12 | Integrated all-fiber interference-type light modulator based on graphene and manufacturing method thereof |
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| CN201610659296.7A CN106054316A (en) | 2016-08-12 | 2016-08-12 | Integrated all-fiber interference-type light modulator based on graphene and manufacturing method thereof |
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Citations (4)
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|---|---|---|---|---|
| CN102736179A (en) * | 2012-04-28 | 2012-10-17 | 成都亨通光通信有限公司 | Optical fiber splicing method |
| CN103344263A (en) * | 2013-06-21 | 2013-10-09 | 华中科技大学 | Interferometric fiber-optical sensor based on core shift structure and manufacturing method thereof |
| CN103956640A (en) * | 2014-05-20 | 2014-07-30 | 天津理工大学 | Wavelength switchable fiber laser based on graphene and core shift structure |
| CN104297208A (en) * | 2014-10-21 | 2015-01-21 | 天津理工大学 | Interferometric optical fiber sensor based on pohotonic crystal optical fiber |
-
2016
- 2016-08-12 CN CN201610659296.7A patent/CN106054316A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102736179A (en) * | 2012-04-28 | 2012-10-17 | 成都亨通光通信有限公司 | Optical fiber splicing method |
| CN103344263A (en) * | 2013-06-21 | 2013-10-09 | 华中科技大学 | Interferometric fiber-optical sensor based on core shift structure and manufacturing method thereof |
| CN103956640A (en) * | 2014-05-20 | 2014-07-30 | 天津理工大学 | Wavelength switchable fiber laser based on graphene and core shift structure |
| CN104297208A (en) * | 2014-10-21 | 2015-01-21 | 天津理工大学 | Interferometric optical fiber sensor based on pohotonic crystal optical fiber |
Non-Patent Citations (3)
| Title |
|---|
| ZHOU FENG: "A Graphene-Enhanced Fiber-Optic Phase Modulator", 《IEEE PHOTONICS TECHNOLOGY LETTERS》 * |
| 李威: "基于微纳光纤的石墨烯超快全光调制器研究", 《中国博士学位论文全文数据库 信息科技辑》 * |
| 田正文: "基于石墨烯的侧边抛磨光纤和微纳光纤光控特性研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
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Application publication date: 20161026 |