CN105549156A - Microballoon resonance filter integrated into suspension core fiber - Google Patents

Microballoon resonance filter integrated into suspension core fiber Download PDF

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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
microsphere
fiber
suspended
cladding
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CN105549156B (en
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关春颖
杨菁
徐义航
王鹏飞
史金辉
苑立波
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Harbin Engineering University
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/28Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293Optical 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
    • G02B6/29331Optical 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
    • G02B6/29335Evanescent coupling to a resonator cavity, i.e. between a waveguide mode and a resonant mode of the cavity
    • G02B6/29338Loop resonators
    • G02B6/2934Fibre ring resonators, e.g. fibre coils
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02Optical fibres with cladding with or without a coating
    • G02B6/02295Microstructured optical fibre
    • G02B6/02314Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
    • G02B6/02319Plurality of longitudinal structures extending along optical fibre axis, e.g. holes characterised by core or core-cladding interface features
    • G02B6/02323Core having lower refractive index than cladding, e.g. photonic band gap guiding
    • G02B6/02328Hollow or gas filled core
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02Optical fibres with cladding with or without a coating
    • G02B6/02295Microstructured optical fibre
    • G02B6/02314Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
    • G02B6/02342Plurality of longitudinal structures extending along optical fibre axis, e.g. holes characterised by cladding features, i.e. light confining region
    • G02B6/02366Single ring of structures, e.g. "air clad"
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/28Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293Optical 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
    • G02B6/29331Optical 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
    • G02B6/29335Evanescent coupling to a resonator cavity, i.e. between a waveguide mode and a resonant mode of the cavity
    • G02B6/29338Loop resonators
    • G02B6/29341Loop 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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

本发明公开了一种集成于悬挂芯光纤内部的微球谐振滤波器。包括悬挂芯光纤和微球,悬挂芯光纤包括包层和纤芯,包层为环状结构,包层内部为空气孔,包层的内径为50~250微米,包层的内径与外径之差为20~40微米,纤芯悬挂于包层内壁,纤芯的直径为9~13微米,纤芯折射率大于包层直射率;微球直径为50-200微米,微球折射率大于等于纤芯折射率,微球位于包层内部,微球通过局部加热与纤芯粘合,悬挂芯光纤的两端与单模光纤利用纤芯对准直接进行耦合。本发明具有封装牢固,紧凑,集成度高,抗干扰能力强,适合长期稳定工作的优点。

The invention discloses a microsphere resonant filter integrated in a suspended core optical fiber. Including suspended core fiber and microspheres, suspended core fiber includes cladding and core, the cladding is a ring structure, the inside of the cladding is an air hole, the inner diameter of the cladding is 50-250 microns, the distance between the inner diameter and the outer diameter of the cladding The difference is 20-40 microns, the fiber core is suspended on the inner wall of the cladding, the diameter of the fiber core is 9-13 microns, the refractive index of the fiber core is greater than the direct refractive index of the cladding; the diameter of the microsphere is 50-200 microns, and the refractive index of the microsphere is greater than or equal to The refractive index of the core, the microspheres are located inside the cladding, the microspheres are bonded to the core through local heating, and the two ends of the suspended core fiber are directly coupled with the single-mode fiber by aligning the core. The invention has the advantages of firm packaging, compactness, high integration, strong anti-interference ability and suitable for long-term stable work.

Description

一种集成于悬挂芯光纤内部的微球谐振滤波器A Microsphere Resonator Filter Integrated in Suspended Core Optical Fiber

技术领域technical field

本发明属于光纤传感技术领域,尤其涉及用于上载/下载滤波和物理量传感测量的,一种集成于悬挂芯光纤内部的微球谐振滤波器。The invention belongs to the technical field of optical fiber sensing, and in particular relates to a microsphere resonant filter integrated in a suspended core optical fiber for uploading/downloading filtering and physical quantity sensing and measurement.

背景技术Background technique

微球谐振腔是半径从几微米到几百微米的球形光学谐振腔。通过在微球表面不断的发生全反射,微球腔将光约束在赤道平面附近并沿大圆绕行,激发出特有的回音壁模式(WhisperingGalleryMode,简称WGM或WG)。由于全反射的作用,球外光场为倏逝场,这种光波是非传播波,因此渗出微球以外的光及其微弱,所以它能够将光约束在很小的体积内很长时间,而几乎没有任何损失,故微球谐振腔以其拥有能够将能量长时间储存在很小的体积内的能力而备受关注。光学微球腔由于超高的品质因数(Q)和较小的模式体积被广泛应用于光集成器件、光滤波器、低阈值激光发射、高灵敏传感器、光通信器件等领域。Microsphere resonators are spherical optical resonators with radii ranging from a few microns to hundreds of microns. Through continuous total reflection on the surface of the microsphere, the microsphere cavity confines the light near the equatorial plane and orbits along the great circle, stimulating a unique Whispering Gallery Mode (WGM or WG for short). Due to the effect of total reflection, the light field outside the sphere is an evanescent field. This light wave is a non-propagating wave, so the light that leaks out of the microsphere is extremely weak, so it can confine the light in a small volume for a long time. There is almost no loss, so the microsphere resonator has attracted much attention for its ability to store energy in a small volume for a long time. Optical microsphere cavities are widely used in optical integrated devices, optical filters, low-threshold laser emission, high-sensitivity sensors, optical communication devices and other fields due to their ultra-high quality factor (Q) and small mode volume.

如何高效地激发微腔中的谐振模式是微球谐振腔在实际应用中需要解决的问题。棱镜和集成波导激发方式器件尺寸大,效率不是很高。采用锥形光纤与微球腔耦合的方式可以将光有效地耦合进/出微球腔,激发高Q谐振模式,耦合效率可达99%以上,因而被研究人员广泛采用。但如何使光纤锥和微球的相对位置保持长期稳定是其能够有效应用的关键。How to efficiently excite the resonant modes in the microcavity is a problem to be solved in the practical application of the microsphere resonator. Prisms and integrated waveguide excitation methods have large device sizes and are not very efficient. The method of coupling the tapered fiber and the microsphere cavity can effectively couple light into/out of the microsphere cavity, excite high-Q resonance modes, and the coupling efficiency can reach more than 99%, so it is widely used by researchers. But how to keep the relative position of fiber cone and microsphere stable for a long time is the key to its effective application.

发明内容Contents of the invention

本发明的目的是提供一种封装牢固,紧凑,抗干扰能力强的,集成于悬挂芯光纤内部的微球谐振滤波器。The object of the present invention is to provide a microsphere resonator filter integrated inside the suspended core optical fiber with firm package, compact size and strong anti-interference ability.

一种集成于悬挂芯光纤内部的微球谐振滤波器,包括悬挂芯光纤和微球,悬挂芯光纤包括包层和纤芯,包层为环状结构,包层内部为空气孔,包层的内径为50~250微米,包层的内径与外径之差为20~40微米,纤芯悬挂于包层内壁,纤芯的直径为9~13微米,纤芯折射率大于包层直射率;微球直径为50-200微米,微球折射率大于等于纤芯折射率,微球位于包层内部,微球通过局部加热与纤芯粘合,悬挂芯光纤的两端与单模光纤利用纤芯对准直接进行耦合。A microsphere resonator filter integrated in a suspended core fiber, including a suspended core fiber and microspheres, the suspended core fiber includes a cladding and a core, the cladding is a ring structure, the inside of the cladding is an air hole, and the cladding The inner diameter is 50-250 microns, the difference between the inner diameter and the outer diameter of the cladding is 20-40 microns, the fiber core is suspended on the inner wall of the cladding, the diameter of the fiber core is 9-13 microns, and the refractive index of the fiber core is greater than the direct refractive index of the cladding; The diameter of the microsphere is 50-200 microns, and the refractive index of the microsphere is greater than or equal to the refractive index of the fiber core. core alignment for direct coupling.

本发明一种集成于悬挂芯光纤内部的微球谐振滤波器,还可以包括:A microsphere resonator filter integrated in the suspended core optical fiber of the present invention may also include:

1、纤芯为一个或多个。1. One or more fiber cores.

2、纤芯为一个时,纤芯与微球粘合是通过在纤芯与微球接触点进行加热粘合的。2. When there is one fiber core, the fiber core and microspheres are bonded by heating at the contact point between the fiber core and the microspheres.

3、纤芯为多个时,纤芯与微球粘合是通过在微球所处位置加热坍塌粘合的。3. When there are multiple fiber cores, the fiber core and the microspheres are bonded by heating and collapsing where the microspheres are located.

有益效果:Beneficial effect:

1、利用悬挂芯光纤将波导和微球均集成在包层玻璃管内部,该滤波器件封装牢固,紧凑,集成度高,抗干扰能力强,适合长期稳定工作;1. The waveguide and microspheres are integrated inside the cladding glass tube by using the suspended core optical fiber. The filter device is tightly packaged, compact, highly integrated, and has strong anti-interference ability, suitable for long-term stable work;

2、利用悬挂芯光纤制备微球谐振滤波器,制作工艺简单,难度低,制备成品重复率高;2. The microsphere resonator filter is prepared by using the suspended core optical fiber, the manufacturing process is simple, the difficulty is low, and the repetition rate of the finished product is high;

3、该微球谐振滤波器可实现普通的滤波器,也可实现上载/下载滤波器,由于空气孔的存在,该器件可实现对微流溶液或气体浓度的传感测量。3. The microsphere resonant filter can realize ordinary filters, and can also realize upload/download filters. Due to the existence of air holes, the device can realize the sensing and measurement of microfluidic solution or gas concentration.

附图说明Description of drawings

图1是集成于悬挂单芯光纤内部的微球谐振滤波器结构图;Figure 1 is a structural diagram of a microsphere resonator filter integrated inside a suspended single-core fiber;

图2(a)是悬挂单芯光纤的横截面示意图;图2(b)是悬挂多芯光纤横截面示意图;Fig. 2 (a) is a cross-sectional schematic diagram of a suspended single-core optical fiber; Fig. 2 (b) is a schematic cross-sectional schematic diagram of a suspended multi-core optical fiber;

图3是悬挂单芯光纤纤芯与微球粘合制备和悬挂单芯光纤与单模光纤纤芯对准焊接示意图;Fig. 3 is a schematic diagram of the preparation of the suspended single-core optical fiber core and the microsphere bonding and the alignment welding of the suspended single-core optical fiber and the single-mode optical fiber core;

图4是集成于悬挂双芯光纤内部的微球谐振上载/下载滤波器结构图;Fig. 4 is a structural diagram of a microsphere resonant upload/download filter integrated inside a suspended dual-core optical fiber;

图5是悬挂双芯光纤纤芯与微球粘合制备和悬挂双芯光纤与单模光纤纤芯对准焊接示意图;Fig. 5 is a schematic diagram of the preparation of the suspended dual-core optical fiber core and the microsphere bonding and the alignment welding of the suspended dual-core optical fiber and the single-mode optical fiber core;

图6是悬挂单芯光纤内部的微球谐振滤波器仿真结果。Fig. 6 is the simulation result of the microsphere resonator filter inside the suspended single-core fiber.

具体实施方式detailed description

下面将结合附图对本发明做进一步详细说明。The present invention will be described in further detail below in conjunction with the accompanying drawings.

本发明是用一种特殊的悬挂芯光纤将微球封装到光纤内部,悬挂芯光纤因纤芯裸露在空气中,可以有效的激发谐振模式。该滤波器件封装牢固,紧凑,适合长期稳定工作,制作重复率高。The invention uses a special suspended core optical fiber to encapsulate microspheres inside the optical fiber, and the suspended core optical fiber can effectively excite the resonant mode because the fiber core is exposed in the air. The filter device has a firm and compact package, is suitable for long-term stable work, and has a high production repetition rate.

本发明的目的在于提供一种集成于悬挂芯光纤内部的微球谐振滤波器。The object of the present invention is to provide a microsphere resonator filter integrated in the suspended core optical fiber.

本发明的目的是这样实现的:一种集成于悬挂芯光纤内部的微球谐振滤波器是由一段具有大空气孔的悬挂芯光纤6和一个微球腔4构成。悬挂芯光纤6两端与单模光纤7利用纤芯对准直接进行耦合;微球4通过局部加热与纤芯实现牢固粘合。大空气孔悬挂芯光纤6的包层2是中心具有一个直径50-250微米空气孔3的环形结构,包层环厚20-40微米,纤芯1悬挂于包层内壁,纤芯直径9-13微米,纤芯折射率大于包层折射率。悬挂芯光纤可以有一个纤芯1或多个纤芯5-1和5-2。微球4直径50-200微米,微球折射率大于等于纤芯折射率。悬挂单芯光纤纤芯1与微球4粘合是通过旋转纤芯方位使纤芯1接触微球4,然后在接触点8进行加热粘合的。悬挂多芯光纤纤芯5-1和5-2与微球4粘合是通过在微球所处位置9加热坍塌粘合的。集成于悬挂芯光纤内部的微球谐振滤波器,其工作原理是当激光光源从单模光纤耦合到悬挂芯光纤,悬挂芯光纤纤芯因裸露在空气中,有较强的倏逝场,故可以与微球发生谐振,进而实现微球谐振滤波器。基于多芯光纤的微球谐振滤波器也可用于上载/下载滤波器。由于空气孔的存在,该器件可实现对微流溶液或气体浓度的传感测量。The object of the present invention is achieved as follows: a microsphere resonator filter integrated in the suspension core fiber is composed of a suspension core fiber 6 with a large air hole and a microsphere cavity 4 . Both ends of the suspended core optical fiber 6 are directly coupled with the single-mode optical fiber 7 by aligning the core; the microsphere 4 is firmly bonded to the core by local heating. The cladding 2 of the large air hole suspended core fiber 6 is a ring structure with an air hole 3 with a diameter of 50-250 microns in the center, and the thickness of the cladding ring is 20-40 microns. 13 microns, the core refractive index is greater than the cladding refractive index. The suspended core fiber can have a single core 1 or a plurality of cores 5-1 and 5-2. The diameter of the microsphere 4 is 50-200 microns, and the refractive index of the microsphere is greater than or equal to the refractive index of the fiber core. The core 1 of the suspended single-core optical fiber is bonded to the microsphere 4 by rotating the orientation of the fiber core to make the core 1 contact the microsphere 4, and then heat bonding at the contact point 8. The suspended multi-core optical fiber cores 5-1 and 5-2 are bonded to the microsphere 4 by heating and collapsing at the position 9 where the microsphere is located. The working principle of the microsphere resonator filter integrated in the suspended core fiber is that when the laser light source is coupled from the single-mode fiber to the suspended core fiber, the core of the suspended core fiber has a strong evanescent field because it is exposed in the air, so It can resonate with microspheres, and then realize microsphere resonant filters. Microsphere resonator filters based on multi-core fibers can also be used as upload/download filters. Due to the existence of air holes, the device can realize the sensing and measurement of microfluidic solution or gas concentration.

本发明提供了一种集成于悬挂芯光纤内部的微球谐振滤波器,该滤波器是由一段具有大空气孔的悬挂单芯或多芯光纤和一个微球腔构成。悬挂芯光纤两端与单模光纤利用纤芯对准直接进行耦合;微球通过局部加热与纤芯实现牢固粘合。悬挂芯光纤因纤芯裸露在空气中,有较强的倏逝场,可以与石英微球发生谐振,进而实现微球谐振滤波器。由于纤芯和微球均在包层玻璃管内部,该滤波器件封装牢固,紧凑,集成度高,抗干扰能力强,适合长期稳定工作;器件制作重复率高,制作难度降低。同时由于空气孔的存在,该器件可实现微流溶液或气体浓度等传感测量。The invention provides a microsphere resonant filter integrated in the suspended core optical fiber, which is composed of a section of suspended single-core or multi-core optical fiber with large air holes and a microsphere cavity. The two ends of the suspended core fiber are directly coupled with the single-mode fiber through core alignment; the microspheres are firmly bonded to the core through local heating. Because the fiber core is exposed in the air, the suspended core fiber has a strong evanescent field, which can resonate with quartz microspheres, thereby realizing a microsphere resonant filter. Since the fiber core and the microspheres are inside the cladding glass tube, the filter device is firmly packaged, compact, highly integrated, and has strong anti-interference ability, and is suitable for long-term stable work; the device manufacturing repetition rate is high, and the manufacturing difficulty is reduced. At the same time, due to the existence of air holes, the device can realize sensing measurements such as microfluidic solution or gas concentration.

一种集成于悬挂芯光纤内部的微球谐振滤波器,滤波器是由一段具有大空气孔的悬挂芯光纤和一个微球腔构成。悬挂芯光纤两端与单模光纤利用纤芯对准直接进行耦合;微球通过局部加热与纤芯实现牢固粘合。A microsphere resonant filter integrated in a suspended core fiber, the filter is composed of a section of suspended core fiber with a large air hole and a microsphere cavity. The two ends of the suspended core fiber are directly coupled with the single-mode fiber through core alignment; the microspheres are firmly bonded to the core through local heating.

大空气孔悬挂芯光纤的包层是中心具有一个直径50-250微米空气孔的环形结构,包层环厚20-40微米,纤芯悬挂于包层内壁,纤芯直径9-13微米,纤芯折射率大于包层折射率。The cladding of the large air hole suspended core fiber is a ring structure with an air hole with a diameter of 50-250 microns in the center. The thickness of the cladding ring is 20-40 microns. The core is suspended from the inner wall of the cladding. The core refractive index is greater than the cladding refractive index.

大空气孔悬挂芯光纤可以有一个或多个纤芯。Large air hole suspended core fibers can have one or more cores.

微球直径50-200微米,微球折射率大于等于纤芯折射率。The diameter of the microsphere is 50-200 microns, and the refractive index of the microsphere is greater than or equal to the refractive index of the fiber core.

悬挂单芯光纤纤芯与微球粘合是通过旋转纤芯方位使纤芯接触微球,然后在接触点进行加热粘合的。The core of the suspended single-core optical fiber is bonded to the microsphere by rotating the orientation of the fiber core to make the core contact the microsphere, and then heat bonding at the contact point.

悬挂多芯光纤纤芯与微球粘合是通过在微球所处位置加热坍塌粘合的。The core of the suspended multi-core optical fiber is bonded to the microsphere by heating and collapsing at the position of the microsphere.

下面结合附图举例对本发明做更详细地描述:The present invention is described in more detail below in conjunction with accompanying drawing example:

实施例1:Example 1:

结合图1、图2(a)、图3和图6,一种集成于悬挂单芯光纤内部的微球谐振滤波器由一段具有大空气孔的悬挂芯光纤6和一个微球腔4构成。悬挂芯光纤纤芯直径9微米,微球直径100微米。微球4在一定的气压下可被吸入空气孔内,通过旋转悬挂单芯光纤的方位,使纤芯位置朝下,利用电弧放电或氢氧焰在微球位置8进行加热,控制加热温度,使光纤不变形,微球即可与纤芯实现牢固粘合。悬挂芯光纤6两端与单模光纤7的纤芯利用电弧焊接机对准,直接进行耦合;当激光光源从单模光纤耦合到悬挂芯光纤,悬挂芯光纤纤芯因裸露在空气中,有较强的倏逝场,故可以与微球发生谐振,进而实现微球谐振滤波器。由于空气孔的存在,该器件可实现对微流溶液或气体浓度的传感测量。图6是该结构在1.5微米波长下利用有限元方法进行的二维仿真实验结果。Referring to Fig. 1, Fig. 2(a), Fig. 3 and Fig. 6, a microsphere resonator filter integrated in a suspended single-core fiber is composed of a suspended core fiber 6 with a large air hole and a microsphere cavity 4. The core diameter of the suspended core fiber is 9 microns, and the diameter of the microsphere is 100 microns. The microsphere 4 can be sucked into the air hole under a certain air pressure, and the orientation of the single-core optical fiber is suspended by rotating, so that the core position is downward, and the microsphere is heated at the position 8 of the microsphere by arc discharge or hydrogen-oxygen flame, and the heating temperature is controlled. Without deforming the fiber, the microspheres can be firmly bonded to the fiber core. The two ends of the suspension core fiber 6 are aligned with the core of the single-mode fiber 7 by an arc welding machine, and are directly coupled; Strong evanescent field, so it can resonate with the microsphere, and then realize the microsphere resonant filter. Due to the existence of air holes, the device can realize the sensing and measurement of microfluidic solution or gas concentration. Fig. 6 is the result of a two-dimensional simulation experiment of the structure using the finite element method at a wavelength of 1.5 microns.

实施例2:Example 2:

结合图2(b)、图4和图5,一种集成于悬挂多芯光纤内部的上载/下载滤波器由一段具有大空气孔的悬挂双芯光纤6和一个微球腔4构成。悬挂芯光纤纤芯直径10微米,微球直径150微米。微球4在一定的气压下可被吸入空气孔内,通过旋转悬挂双芯光纤的方位,使一个纤芯位置朝下,利用电弧放电或氢氧焰在微球位置进行加热,控制加热温度,使加热处9坍塌,微球即可与两个纤芯同时实现牢固粘合。悬挂双芯光纤6两端的两个纤芯5-1和5-2分别与单模光纤7的纤芯利用焊接机对准,直接进行耦合;当激光光源从单模光纤耦合到悬挂双芯光纤纤芯5-1,悬挂芯光纤纤芯因裸露在空气中,有较强的倏逝场,故可以与微球发生谐振,进而实现微球谐振滤波器,双芯光纤纤芯5-2又可以与微球在上方接触点实现谐振,故可以实现上载下载滤波器。Referring to Fig. 2(b), Fig. 4 and Fig. 5, an upload/download filter integrated in a suspended multi-core fiber is composed of a suspended double-core fiber 6 with a large air hole and a microsphere cavity 4. The core diameter of the suspended core fiber is 10 microns, and the diameter of the microsphere is 150 microns. The microsphere 4 can be sucked into the air hole under a certain air pressure. By rotating and suspending the orientation of the double-core optical fiber, one fiber core is positioned downward, and the microsphere is heated by arc discharge or hydrogen-oxygen flame to control the heating temperature. The heating part 9 is collapsed, and the microspheres can be firmly bonded to the two fiber cores at the same time. The two cores 5-1 and 5-2 at both ends of the suspended double-core optical fiber 6 are aligned with the core of the single-mode optical fiber 7 by a welding machine, and directly coupled; when the laser light source is coupled from the single-mode optical fiber to the suspended double-core optical fiber Fiber core 5-1, the suspended core fiber core is exposed in the air and has a strong evanescent field, so it can resonate with the microspheres, thereby realizing the microsphere resonant filter, and the dual-core fiber core 5-2 It can achieve resonance with the microsphere at the upper contact point, so it can realize uploading and downloading filters.

Claims (4)

1.一种集成于悬挂芯光纤内部的微球谐振滤波器,其特征在于:包括悬挂芯光纤和微球,悬挂芯光纤包括包层和纤芯,包层为环状结构,包层内部为空气孔,包层的内径为50~250微米,包层的内径与外径之差为20~40微米,纤芯悬挂于包层内壁,纤芯的直径为9~13微米,纤芯折射率大于包层直射率;微球直径为50-200微米,微球折射率大于等于纤芯折射率,微球位于包层内部,微球通过局部加热与纤芯粘合,悬挂芯光纤的两端与单模光纤利用纤芯对准直接进行耦合。1. A microsphere resonator filter integrated in the inside of the suspended core optical fiber, characterized in that: comprise the suspended core optical fiber and the microsphere, the suspended core optical fiber comprises a cladding and a fiber core, the cladding is a ring structure, and the inside of the cladding is Air holes, the inner diameter of the cladding is 50-250 microns, the difference between the inner diameter and the outer diameter of the cladding is 20-40 microns, the core is suspended on the inner wall of the cladding, the diameter of the core is 9-13 microns, the refractive index of the core is Greater than the cladding direct radiation rate; the diameter of the microsphere is 50-200 microns, the refractive index of the microsphere is greater than or equal to the refractive index of the fiber core, the microsphere is located inside the cladding, the microsphere is bonded to the core through local heating, and the two ends of the core fiber are suspended Direct coupling to single-mode fiber with core alignment. 2.根据权利要求1所述的一种集成于悬挂芯光纤内部的微球谐振滤波器,其特征在于:所述的纤芯为一个或多个。2. A microsphere resonator filter integrated in a suspended core fiber according to claim 1, characterized in that there are one or more fiber cores. 3.根据权利要求2所述的一种集成于悬挂芯光纤内部的微球谐振滤波器,其特征在于:所述的纤芯为一个时,纤芯与微球粘合是通过在纤芯与微球接触点进行加热粘合的。3. A kind of microsphere resonator filter integrated in the suspension core optical fiber according to claim 2, characterized in that: when the core is one, the bonding between the core and the microsphere is through the core and the microsphere The contact points of the microspheres are thermally bonded. 4.根据权利要求2所述的一种集成于悬挂芯光纤内部的微球谐振滤波器,其特征在于:所述的纤芯为多个时,纤芯与微球粘合是通过在微球所处位置加热坍塌粘合的。4. A microsphere resonator filter integrated in a suspended core optical fiber according to claim 2, characterized in that: when there are multiple cores, the bonding between the core and the microspheres is achieved through microspheres The location is heated and collapsed bonded.
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Cited By (17)

* Cited by examiner, † Cited by third party
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 hybrid integrated dual-core optical fiber with an optical waveguide surrounding a microfluidic channel and a preparation method thereof
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 whispering gallery resonator with embedded microspheres on the side of optical fiber
CN109827678A (en) * 2019-03-14 2019-05-31 哈尔滨工程大学 A temperature sensor for converting fluorescent light and its manufacturing method
CN110596814A (en) * 2018-06-12 2019-12-20 中国计量大学 A Microsphere-Based Whispering Gallery Resonator Based on Fiber-Etched Grooves
CN110954992A (en) * 2019-12-13 2020-04-03 深圳大学 Multi-channel all-fiber microsphere resonator based on space division multiplexing and its fabrication method
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
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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CN114815038A (en) * 2022-03-08 2022-07-29 哈尔滨工程大学 A Transmissive Photonic Nanojet Generator Based on Suspended Core Fiber

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1961206A (en) * 2004-05-27 2007-05-09 3M创新有限公司 Dielectric microcavity fluorosensors excited with a broadband light source
CN101308232A (en) * 2007-05-15 2008-11-19 福州大学 Tapered optical fiber ring cavity optical comb wavelength division multiplexer and its manufacturing method
CN101806725A (en) * 2010-04-19 2010-08-18 哈尔滨工程大学 Suspension-core optical fiber-based gas absorption spectrum line reference device
CN101852894A (en) * 2010-04-29 2010-10-06 哈尔滨工程大学 Coupling connection method of suspended core fiber

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1961206A (en) * 2004-05-27 2007-05-09 3M创新有限公司 Dielectric microcavity fluorosensors excited with a broadband light source
CN101308232A (en) * 2007-05-15 2008-11-19 福州大学 Tapered optical fiber ring cavity optical comb wavelength division multiplexer and its manufacturing method
CN101806725A (en) * 2010-04-19 2010-08-18 哈尔滨工程大学 Suspension-core optical fiber-based gas absorption spectrum line reference device
CN101852894A (en) * 2010-04-29 2010-10-06 哈尔滨工程大学 Coupling connection method of suspended core fiber

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
戴世勋 ET AL.: "用于光学微腔的玻璃微球研究进展", 《激光与光电子学进展》 *
赵恩铭 ET AL.: "基于内壁芯光纤的调制器件", 《光学 精密工程》 *
邹长铃 ET AL.: "回音壁模式光学微腔: 基础与应用", 《中国科学:物理学 力学 天文学》 *

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