CN105549156A - Microballoon resonance filter integrated into suspension core fiber - Google Patents
Microballoon resonance filter integrated into suspension core fiber Download PDFInfo
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- CN105549156A CN105549156A CN201610015487.XA CN201610015487A CN105549156A CN 105549156 A CN105549156 A CN 105549156A CN 201610015487 A CN201610015487 A CN 201610015487A CN 105549156 A CN105549156 A CN 105549156A
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- core
- microballoon
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- suspending
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Classifications
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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
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29331—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by evanescent wave coupling
- G02B6/29335—Evanescent coupling to a resonator cavity, i.e. between a waveguide mode and a resonant mode of the cavity
- G02B6/29338—Loop resonators
- G02B6/2934—Fibre ring resonators, e.g. fibre coils
-
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02295—Microstructured optical fibre
- G02B6/02314—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
- G02B6/02319—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes characterised by core or core-cladding interface features
- G02B6/02323—Core having lower refractive index than cladding, e.g. photonic band gap guiding
- G02B6/02328—Hollow or gas filled core
-
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02295—Microstructured optical fibre
- G02B6/02314—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
- G02B6/02342—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes characterised by cladding features, i.e. light confining region
- G02B6/02366—Single ring of structures, e.g. "air clad"
-
- 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
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29331—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by evanescent wave coupling
- G02B6/29335—Evanescent coupling to a resonator cavity, i.e. between a waveguide mode and a resonant mode of the cavity
- G02B6/29338—Loop resonators
- G02B6/29341—Loop resonators operating in a whispering gallery mode evanescently coupled to a light guide, e.g. sphere or disk or cylinder
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a microballoon resonance filter integrated into a suspension core fiber. The microballoon resonance filter comprises the suspension core fiber and a microballoon, wherein the suspension core fiber comprises a cladding and a fiber core, the cladding is of an annular structure, the cladding is internally provided with an air hole, the internal diameter of the cladding is 50 to 250 micrometers, the difference between the internal diameter of the cladding and the external diameter of the cladding is 20 to 40 micrometers, the fiber core is suspended on the inner wall of the cladding, the diameter of the fiber core is 9 to 13 micrometers, and the refractive index of the fiber core is greater than the perpendicular incidence rate of the cladding; and the diameter of the microballoon is 50 to 200 micrometers, the refractive index of the microballoon is greater than and equal to that of the fire core, the microballoon is disposed inside the cladding, the microballoon is adhered to the fiber core through local heating, and the two ends of the suspension core fiber and a single-mode fiber are aligned and directly coupled by use of the fiber core. The filter provided by the invention has the advantages of firm and compact packaging, high integration and high anti-interference capability, thereby being suitable for long-term stable work.
Description
Technical field
The invention belongs to technical field of optical fiber sensing, particularly relate to for upload/download filtering and physical quantity sensing measurement, a kind of microballoon resonance filter being integrated in suspending core fiber inside.
Background technology
Microsphere resonator is that radius is from several microns to the hemispherical optical resonator cavity of hundreds of micron.By being constantly totally reflected at microsphere surface, Microsphere Cavities to constrain light near equatorial plane and detours along great circle, inspires distinctive Whispering-gallery-mode (WhisperingGalleryMode is called for short WGM or WG).Due to the effect of total reflection, the outer light field of ball is evanscent field, this light wave is non-propagation wave, therefore light beyond microballoon and faint is oozed out, so it can to constrain light in very little volume for a long time, and almost without any loss, therefore microsphere resonator has the ability of energy long-time storage in very little volume can be received much concern with it.Optical Microsphere Cavities is widely used in the fields such as optical integrated device, optical filter, Low threshold Laser emission, high sensitive sensor, optic communication device due to the quality factor (Q) of superelevation and less mode volume.
The mode of resonance in microcavity how is excited to be the problem that microsphere resonator needs to solve in actual applications efficiently.Greatly, efficiency is not very high for prism and integrated waveguide mode of excitation device size.Adopt the mode that is coupled with Microsphere Cavities of conical fiber light can be coupled effectively entry/exit Microsphere Cavities, excite high Q mode of resonance, coupling efficiency can reach more than 99%, and thus studied personnel extensively adopt.But how enabling the relative position of optical taper and microballoon maintain a long-term stability is the key that it is effectively applied.
Summary of the invention
The object of this invention is to provide a kind of encapsulation firmly, compact, antijamming capability is strong, is integrated in the microballoon resonance filter of suspending core fiber inside.
A kind of microballoon resonance filter being integrated in suspending core fiber inside, comprise suspending core fiber and microballoon, suspending core fiber comprises covering and fibre core, covering is ring texture, and covering inside is airport, and the internal diameter of covering is 50 ~ 250 microns, the internal diameter of covering and the difference of external diameter are 20 ~ 40 microns, fibre core hangs on covering inwall, and the diameter of fibre core is 9 ~ 13 microns, and fiber core refractive index is greater than covering direct projection rate; Microsphere diameter is 50-200 micron, and microballoon refractive index is more than or equal to fiber core refractive index, and microballoon is positioned at covering inside, and microballoon is bonded by spot heating and fibre core, and two ends and the single-mode fiber of suspending core fiber utilize fibre core collimation to tap into row and be coupled.
A kind of microballoon resonance filter being integrated in suspending core fiber inside of the present invention, can also comprise:
1, fibre core is one or more.
2, when fibre core is one, fibre core and microsphere adhesive are by carrying out heating adhesion at fibre core and micro-sphere contacts point.
3, when fibre core is multiple, fibre core and microsphere adhesive bond by heating to cave in microballoon present position.
Beneficial effect:
1, utilize suspending core fiber waveguide and microballoon to be all integrated in cladding glass pipe inner, firmly, compact, integrated level is high for the encapsulation of this filtering device, and antijamming capability is strong, is applicable to long-term stable operation;
2, utilize suspending core fiber to prepare microballoon resonance filter, manufacture craft is simple, and difficulty is low, prepares finished product repetition rate high;
3, this microballoon resonance filter can realize common wave filter, also can realize upload/download wave filter, and due to the existence of airport, this device can realize the sensing measurement to miniflow solution or gas concentration.
Accompanying drawing explanation
Fig. 1 is integrated in the microballoon resonator filter structure figure hanging single-core fiber inside;
Fig. 2 (a) is the cross sectional representation hanging single-core fiber; Fig. 2 (b) hangs multi-core fiber cross sectional representation;
Fig. 3 hangs single-core fiber fibre core to prepare with microsphere adhesive and hang single-core fiber and aim at single-mode fiber fibre core and weld schematic diagram;
Fig. 4 is integrated in the microballoon resonance upload/download filter graph architecture hanging twin-core fiber inside;
Fig. 5 hangs twin-core fiber fibre core to prepare with microsphere adhesive and hang twin-core fiber and aim at single-mode fiber fibre core and weld schematic diagram;
Fig. 6 is the microballoon resonance filter simulation result hanging single-core fiber inside.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details.
Microballoon is encapsulated into inside of optical fibre with a kind of special suspending core fiber by the present invention, and suspending core fiber is in atmosphere exposed because of fibre core, effectively can excite mode of resonance.The encapsulation of this filtering device is firmly, compact, is applicable to long-term stable operation, makes repetition rate high.
The object of the present invention is to provide a kind of microballoon resonance filter being integrated in suspending core fiber inside.
The object of the present invention is achieved like this: a kind of microballoon resonance filter being integrated in suspending core fiber inside is made up of one section of suspending core fiber 6 with large airport and a Microsphere Cavities 4.Suspending core fiber 6 two ends and single-mode fiber 7 utilize fibre core collimation to tap into row and are coupled; Microballoon 4 realizes good bond by spot heating and fibre core.The covering 2 of large airport suspending core fiber 6 is loop configuration that center has a diameter 50-250 micron air hole 3, and the thick 20-40 micron of covering ring, fibre core 1 hangs on covering inwall, and core diameter 9-13 micron, fiber core refractive index is greater than cladding index.Suspending core fiber can have a fibre core 1 or multiple fibre core 5-1 and 5-2.Microballoon 4 diameter 50-200 micron, microballoon refractive index is more than or equal to fiber core refractive index.To hang that single-core fiber fibre core 1 bonds with microballoon 4 be make fibre core 1 contact microballoon 4 by rotating fibre core orientation, then carries out heating adhesion at contact point 8.Suspension multi-core fiber fibre core 5-1 and 5-2 and microballoon 4 bond and bond by heating to cave in microballoon present position 9.Be integrated in the microballoon resonance filter of suspending core fiber inside, its principle of work is that suspending core fiber fibre core, because of in atmosphere exposed, has stronger evanscent field when LASER Light Source is from Single-Mode Fiber Coupling to suspending core fiber, therefore can with microballoon generation resonance, and then realize microballoon resonance filter.Microballoon resonance filter based on multi-core fiber also can be used for upload/download wave filter.Due to the existence of airport, this device can realize the sensing measurement to miniflow solution or gas concentration.
The invention provides a kind of microballoon resonance filter being integrated in suspending core fiber inside, this wave filter is made up of one section of suspension list core or multi-core fiber with large airport and a Microsphere Cavities.Suspending core fiber two ends and single-mode fiber utilize fibre core collimation to tap into row and are coupled; Microballoon realizes good bond by spot heating and fibre core.Suspending core fiber is in atmosphere exposed because of fibre core, has stronger evanscent field, can with quartzy microballoon generation resonance, and then realize microballoon resonance filter.Because fibre core and microballoon are all inner at cladding glass pipe, firmly, compact, integrated level is high for the encapsulation of this filtering device, and antijamming capability is strong, is applicable to long-term stable operation; Element manufacturing repetition rate is high, and manufacture difficulty reduces.Simultaneously due to the existence of airport, this device can realize the sensing measurements such as miniflow solution or gas concentration.
Be integrated in a microballoon resonance filter for suspending core fiber inside, wave filter is made up of one section of suspending core fiber with large airport and a Microsphere Cavities.Suspending core fiber two ends and single-mode fiber utilize fibre core collimation to tap into row and are coupled; Microballoon realizes good bond by spot heating and fibre core.
The covering of large airport suspending core fiber is the loop configuration that center has a diameter 50-250 micron air hole, and the thick 20-40 micron of covering ring, fibre core hangs on covering inwall, and core diameter 9-13 micron, fiber core refractive index is greater than cladding index.
Large airport suspending core fiber can have one or more fibre core.
Microsphere diameter 50-200 micron, microballoon refractive index is more than or equal to fiber core refractive index.
To hang single-core fiber fibre core be make fibre core contact microballoon by rotating fibre core orientation with microsphere adhesive, then carries out heating adhesion at contact point.
Suspension multi-core fiber fibre core and microsphere adhesive bond by heating to cave in microballoon present position.
Below in conjunction with accompanying drawing citing, the present invention is described in more detail:
Embodiment 1:
Composition graphs 1, Fig. 2 (a), Fig. 3 and Fig. 6, a kind of microballoon resonance filter hanging single-core fiber inside that is integrated in is made up of one section of suspending core fiber 6 with large airport and a Microsphere Cavities 4.Suspending core fiber core diameter 9 microns, microsphere diameter 100 microns.Microballoon 4 can be inhaled in airport under certain air pressure, by the orientation of rotating suspension single-core fiber, makes fibre core position down, arc discharge or oxyhydrogen flame is utilized to heat in microballoon position 8, control heating-up temperature, make optical fiber indeformable, microballoon can realize good bond with fibre core.Suspending core fiber 6 two ends utilize arc welding machine to aim at the fibre core of single-mode fiber 7, are directly coupled; When LASER Light Source is from Single-Mode Fiber Coupling to suspending core fiber, suspending core fiber fibre core, because of in atmosphere exposed, has stronger evanscent field, thus can with microballoon generation resonance, and then realize microballoon resonance filter.Due to the existence of airport, this device can realize the sensing measurement to miniflow solution or gas concentration.Fig. 6 is the two-dimensional simulation experimental result that this structure utilizes Finite Element Method and carries out under 1.5 micron wave lengths.
Embodiment 2:
Composition graphs 2 (b), Fig. 4 and Fig. 5, a kind of upload/download wave filter hanging multi-core fiber inside that is integrated in is made up of one section of suspension twin-core fiber 6 with large airport and a Microsphere Cavities 4.Suspending core fiber core diameter 10 microns, microsphere diameter 150 microns.Microballoon 4 can be inhaled in airport under certain air pressure, by the orientation of rotating suspension twin-core fiber, make a fibre core position down, arc discharge or oxyhydrogen flame is utilized to heat in microballoon position, control heating-up temperature, heating place 9 is caved in, and microballoon can realize good bond with two fibre cores simultaneously.Two fibre core 5-1 and 5-2 hanging twin-core fiber 6 two ends utilize bonding machine to aim at the fibre core of single-mode fiber 7 respectively, are directly coupled; When LASER Light Source is from Single-Mode Fiber Coupling to suspension twin-core fiber fibre core 5-1, suspending core fiber fibre core is because of in atmosphere exposed, there is stronger evanscent field, therefore can with microballoon generation resonance, and then realize microballoon resonance filter, twin-core fiber fibre core 5-2 again can with microballoon up contact point realize resonance, therefore can realize uploading download wave filter.
Claims (4)
1. one kind is integrated in the microballoon resonance filter of suspending core fiber inside, it is characterized in that: comprise suspending core fiber and microballoon, suspending core fiber comprises covering and fibre core, covering is ring texture, and covering inside is airport, and the internal diameter of covering is 50 ~ 250 microns, the internal diameter of covering and the difference of external diameter are 20 ~ 40 microns, fibre core hangs on covering inwall, and the diameter of fibre core is 9 ~ 13 microns, and fiber core refractive index is greater than covering direct projection rate; Microsphere diameter is 50-200 micron, and microballoon refractive index is more than or equal to fiber core refractive index, and microballoon is positioned at covering inside, and microballoon is bonded by spot heating and fibre core, and two ends and the single-mode fiber of suspending core fiber utilize fibre core collimation to tap into row and be coupled.
2. a kind of microballoon resonance filter being integrated in suspending core fiber inside according to claim 1, is characterized in that: described fibre core is one or more.
3. a kind of microballoon resonance filter being integrated in suspending core fiber inside according to claim 2, is characterized in that: when described fibre core is one, and fibre core and microsphere adhesive are by carrying out heating adhesion at fibre core and micro-sphere contacts point.
4. a kind of microballoon resonance filter being integrated in suspending core fiber inside according to claim 2, is characterized in that: when described fibre core is multiple, and fibre core and microsphere adhesive bond by heating to cave in microballoon present position.
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759363A (en) * | 2016-05-17 | 2016-07-13 | 河南科技大学 | Method for embedding micro-ring resonator into D-shaped optical fiber |
| CN106840361A (en) * | 2017-03-10 | 2017-06-13 | 中国计量大学 | A kind of Whispering-gallery-mode resonator of working stability |
| CN107272116A (en) * | 2017-08-16 | 2017-10-20 | 深圳大学 | A kind of Whispering-gallery-mode resonator and preparation method thereof |
| CN108879316A (en) * | 2018-06-08 | 2018-11-23 | 哈尔滨工程大学 | Multi-wavelength mode locked fiber laser based on micro-nano fiber ring Yu disulphide mode locker |
| CN108919418A (en) * | 2018-07-23 | 2018-11-30 | 燕山大学 | Single layer hole low-loss mixed light-guiding photonic crystal fiber |
| CN109752794A (en) * | 2017-11-03 | 2019-05-14 | 桂林电子科技大学 | A kind of optical waveguide is wrapped the hybrid integrated twin-core fiber and preparation method of microchannel |
| CN109752793A (en) * | 2017-11-03 | 2019-05-14 | 桂林电子科技大学 | Hybrid integrated Michelson formula optical fiber micro flow chip |
| CN109814207A (en) * | 2019-03-14 | 2019-05-28 | 中国计量大学 | A kind of Echo Wall resonator of optical fiber side insertion microballoon |
| CN109827678A (en) * | 2019-03-14 | 2019-05-31 | 哈尔滨工程大学 | A kind of temperature sensor and preparation method thereof that conversion fluorescence is luminous |
| CN110596814A (en) * | 2018-06-12 | 2019-12-20 | 中国计量大学 | Optical fiber corrosion groove type echo wall resonator based on microspheres |
| CN110954992A (en) * | 2019-12-13 | 2020-04-03 | 深圳大学 | Multi-channel all-fiber microsphere resonant cavity based on space division multiplexing and manufacturing method thereof |
| CN111487724A (en) * | 2020-04-27 | 2020-08-04 | 重庆大学 | In-fiber transmission band-pass echo wall micro-cavity filter and manufacturing method thereof |
| CN113121103A (en) * | 2019-12-31 | 2021-07-16 | 武汉光谷长盈通计量有限公司 | Method for manufacturing hollow internally-suspended high-refractive-index multi-core optical fiber |
| CN113315482A (en) * | 2021-04-25 | 2021-08-27 | 哈尔滨工程大学 | Robust filter based on one-dimensional topological insulator |
| CN114089465A (en) * | 2021-11-16 | 2022-02-25 | 哈尔滨工程大学 | Optical fiber mode converter with tunable working wavelength |
| CN114088664A (en) * | 2021-11-16 | 2022-02-25 | 哈尔滨工程大学 | SPR optical fiber refractive index sensor, preparation method and application |
| CN114815038A (en) * | 2022-03-08 | 2022-07-29 | 哈尔滨工程大学 | Transmission type photon nanometer jet flow generator based on suspended core optical fiber |
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| CN105759363A (en) * | 2016-05-17 | 2016-07-13 | 河南科技大学 | Method for embedding micro-ring resonator into D-shaped optical fiber |
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| CN107272116A (en) * | 2017-08-16 | 2017-10-20 | 深圳大学 | A kind of Whispering-gallery-mode resonator and preparation method thereof |
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| CN109827678A (en) * | 2019-03-14 | 2019-05-31 | 哈尔滨工程大学 | A kind of temperature sensor and preparation method thereof that conversion fluorescence is luminous |
| CN110954992A (en) * | 2019-12-13 | 2020-04-03 | 深圳大学 | Multi-channel all-fiber microsphere resonant cavity based on space division multiplexing and manufacturing method thereof |
| CN110954992B (en) * | 2019-12-13 | 2021-12-07 | 深圳大学 | Multi-channel all-fiber microsphere resonant cavity based on space division multiplexing and manufacturing method thereof |
| CN113121103A (en) * | 2019-12-31 | 2021-07-16 | 武汉光谷长盈通计量有限公司 | Method for manufacturing hollow internally-suspended high-refractive-index multi-core optical fiber |
| CN111487724A (en) * | 2020-04-27 | 2020-08-04 | 重庆大学 | In-fiber transmission band-pass echo wall micro-cavity filter and manufacturing method thereof |
| CN113315482A (en) * | 2021-04-25 | 2021-08-27 | 哈尔滨工程大学 | Robust filter based on one-dimensional topological insulator |
| CN114088664A (en) * | 2021-11-16 | 2022-02-25 | 哈尔滨工程大学 | SPR optical fiber refractive index sensor, preparation method and application |
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| CN114088664B (en) * | 2021-11-16 | 2024-07-23 | 哈尔滨工程大学 | SPR optical fiber refractive index sensor, preparation method and application |
| CN114089465B (en) * | 2021-11-16 | 2024-07-23 | 哈尔滨工程大学 | Optical fiber mode converter with tunable working wavelength |
| CN114815038A (en) * | 2022-03-08 | 2022-07-29 | 哈尔滨工程大学 | Transmission type photon nanometer jet flow generator based on suspended core optical fiber |
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