CN106842418B - A kind of hollow polarization holding photonic crystal fiber - Google Patents
A kind of hollow polarization holding photonic crystal fiber Download PDFInfo
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- CN106842418B CN106842418B CN201710253898.7A CN201710253898A CN106842418B CN 106842418 B CN106842418 B CN 106842418B CN 201710253898 A CN201710253898 A CN 201710253898A CN 106842418 B CN106842418 B CN 106842418B
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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
- G02B6/02—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
- G02B6/02338—Structured core, e.g. core contains more than one material, non-constant refractive index distribution in core, asymmetric or non-circular elements in core unit, multiple cores, insertions between core and 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02042—Multicore optical fibres
-
- 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
- G02B6/024—Optical fibres with cladding with or without a coating with polarisation maintaining properties
-
- 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/105—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type having optical polarisation effects
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
It is polarized the present invention relates to a kind of hollow and keeps photonic crystal fiber.Inner wall one along glass tube encloses, it is arranged with several microcapillarys and constitutes stomata inner cladding region, the contact portion of stomata inner cladding region peripheral part and glass inside pipe wall, it is fixed on the inner wall of glass tube in a welded manner, the middle section of stomata inner cladding region is low-refraction fibre core I, as core region, core region two sides are low-refraction fibre core II, as 7 born of the same parents' stomatas；Two sides in core region are the gap regions of symmetrical fibre core envelope；Or the upper side and lower side in core region is symmetrically arranged with the elevated regions of two fibre core envelopes；Or the two sides in core region are respectively the gap regions of fibre core envelope, the upper side and lower side in core region is symmetrically arranged with the elevated regions of two fibre core envelopes.Polarization-maintaining performance, low-loss transmission and single mode feature can be achieved, have many advantages, such as that temperature stability is high, nonlinear factor is low, magnetic sensitivity is low, anti-radiation performance is good.
Description
Technical field
The invention belongs to special optical fiber field, in particular to a kind of hollow polarization keeps photonic crystal fiber.
Background technique
Polarization-maintaining fiber is widely used in optical fibre gyro, fibre optic hydrophone, optical fiber current mutual inductor, is a kind of
There is the special optical fiber of significant application value, it is two-fold that traditional polarization-maintaining fiber generally generates stress by the stress rods of fibre core two sides
Realization is penetrated, there are the multiple types such as panda type, bow-tie type.But since stress rods are made of doping quartz, its own optical
Matter is affected by temperature greatly, and under the radiation environments such as space, fibre core doping component (generally GeO2) and stress rods be doping to
Divide (generally B2O3) colour center can be formed under the action of radiation ray, cause polarization-maintaining fiber loss to significantly increase, influences
It uses.
With the invention of photonic crystal fiber (also known as microstructured optical fibers), researcher, which proposes, uses photonic crystal fiber
To realize the scheme of polarization-maintaining fiber.Researcher proposes the scheme that solid polarization keeps photonic crystal fiber first.Closely
Nian Lai, researcher have also been proposed the scheme that hollow polarization keeps photonic crystal fiber, and the polarization of this air-core keeps light
Photonic crystal fiber is made of single quartz material, and air accounts for most of ratio of entire optical fiber, so it possesses good temperature
Spend stability；Again since the most of of light energy propagates in air-core, nonlinear effect, magnetic-field-sensitive can be greatly reduced
Property, improves anti-radiation characteristic, is the polarization-maintaining fiber that there is development potentiality in a kind of pole.
Summary of the invention
The purpose of the present invention is to provide a kind of fibre cores to have notch or protrusion, and air-core two sides have 7 born of the same parents' via holes
Hollow polarization keep photonic crystal fiber, to realize polarization-maintaining performance, low-loss transmission and single mode feature.
To achieve the above object, used technical solution is as follows by the present invention: a kind of hollow polarization holding photon is brilliant
Body optical fiber, it is characterised in that: including glass tube, microcapillary, low-refraction fibre core I, low-refraction fibre core II；
Inner wall one along glass tube encloses, and is arranged with several microcapillarys and constitutes stomata inner cladding region, stomata inner cladding region
The contact portion of domain peripheral part and glass inside pipe wall is fixed in a welded manner on the inner wall of glass tube, stomata inner cladding region
The middle section in domain is low-refraction fibre core I, as core region, and core region two sides are low-refraction fibre core II, as 7 born of the same parents
Stomata；
Two sides in the core region are the gap regions of symmetrical fibre core envelope；
Or the upper side and lower side in core region is symmetrically arranged with the elevated regions of two fibre core envelopes；
Or the two sides in core region are respectively the gap regions of fibre core envelope, the upper side and lower side in core region is symmetrical
If there are two the elevated regions of fibre core envelope.
The beneficial effects of the present invention are: polarization-maintaining performance, low-loss transmission and single mode feature can be realized, there is temperature stability
High, the advantages that nonlinear factor is low, magnetic sensitivity is low, anti-radiation performance is good is that a kind of pole has the polarization of development potentiality to keep
Optical fiber.
Detailed description of the invention
Fig. 1 is the cross section structure schematic diagram that gap regions are symmetrically arranged in core region of the present invention；
Fig. 2 is the cross section structure schematic diagram that two elevated regions are symmetrically arranged in core region of the present invention；
Fig. 3 is the cross section structure signal that two elevated regions and two gap regions are symmetrically arranged in core region of the present invention
Figure.
Specific embodiment
Below in conjunction with attached drawing, the present invention will be described in further detail.It should be appreciated that specific implementation described herein
Example does not limit the present invention only to explain the present invention.
As shown in Figure 1, Figure 2 and Figure 3, a kind of hollow polarization keeps photonic crystal fiber, including glass tube 4, microcapillary
3, low-refraction fibre core I 1, low-refraction fibre core II 2.
Inner wall one along glass tube 4 encloses, and is arranged with several microcapillarys 3 and constitutes stomata inner cladding region, stomata inner cladding
The contact portion of area periphery part and 4 inner wall of glass tube, is fixed in a welded manner on the inner wall of glass tube 4, packet in stomata
The middle section of layer region is low-refraction fibre core I 1, that is, extracting 19 microcapillarys out is core region, and core region two sides are
Low-refraction fibre core II 2, that is, extracting 7 microcapillarys out is 7 born of the same parents' stomatas.
The gap regions 5 or the upper side and lower side in core region that two sides in core region are symmetrical fibre core envelope
The two sides being symmetrically arranged in the elevated regions 6 or core region of two fibre core envelopes are respectively the gap regions 5 of fibre core envelope,
The upper side and lower side in core region is symmetrically arranged with the elevated regions 6 of two fibre core envelopes.
Their structure all includes having 19 born of the same parents (19 microcapillarys of the extraction) core region and high refraction of low-refraction
The cladding regions of rate, the cladding regions of high refractive index be made of inner cladding region, that is, several microcapillarys 3 stomata inner cladding region and
Outer cladding region, that is, glass tube 4 collectively constitutes.
Low-refraction fibre core II 2 is 7 born of the same parents' airports (7 microcapillarys of extraction), its effect is to make to pass in 19 born of the same parents' fibre cores
Defeated high-order mode is coupled out, so that optical fiber be made to keep single mode transport.
In Fig. 1, the two sides in core region are the gap regions 5 of symmetrical fibre core envelope.
The effect in symmetric windows region 5 is to reduce loss, forms polarization-maintaining performance.
In Fig. 2, the upper side and lower side in core region is symmetrically arranged with the elevated regions 6 of two fibre core envelopes, symmetrically
Elevated regions 6 exist, and it acts as reducing to be lost, form polarization-maintaining performance.
In Fig. 3, the presence for being symmetrically arranged with two elevated regions 6 and two gap regions 5 in core region, these are prominent
Role is to reduce loss, forms polarization-maintaining performance.
Stomata inner cladding region is hexagon or polygon or rectangle or circle or diamond shape.
Core region, 7 born of the same parents' stomatas are circle.
Low-refraction fibre core I 1, low-refraction fibre core II 2 are inert gas or air or vacuum.
Microcapillary 3, glass tube 4 are silicon dioxide tube or soft glass pipe or plastic tube.
Although for illustrative purposes, the preferred embodiment of the present invention has been disclosed, the present invention is not only limited to above-mentioned specific
Embodiment, those skilled in the art according to the present disclosure, can be implemented using other a variety of specific embodiments
The present invention, it is therefore, all using design structure and thinking of the invention, the design of some simple variations or change is done, is all belonged to
In the scope of protection of the invention.
Claims (1)
1. a kind of hollow polarization keeps photonic crystal fiber, including glass tube (4), microcapillary (3), low-refraction fibre core I
(1), low-refraction fibre core II (2)；
Inner wall one along glass tube (4) encloses, and is arranged with several microcapillarys (3) and constitutes stomata inner cladding region, stomata inner cladding
The contact portion of area periphery part and glass tube (4) inner wall, is fixed on the inner wall of glass tube (4), stomata in a welded manner
The middle section of inner cladding region is low-refraction fibre core I (1), as core region, by will be among stomata inner cladding region
19 partial microcapillarys are extracted out to form core region, and core region two sides are low-refraction fibre core II (2), are 7 born of the same parents' gas
Hole；It is characterized by: the two sides in the core region are the gap regions (5) of symmetrical fibre core envelope, symmetric windows region
(5) effect is to reduce loss, forms polarization-maintaining performance；
Or the two sides in core region are respectively the gap regions (5) of fibre core envelope, the upper side and lower side in core region is symmetrical
If symmetrical gap regions (5) and elevated regions (6) exist, and it acts as reductions there are two the elevated regions (6) of fibre core envelope
Loss forms polarization-maintaining performance；
The stomata inner cladding region is polygon or rectangle or circle or diamond shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710253898.7A CN106842418B (en) | 2017-04-18 | 2017-04-18 | A kind of hollow polarization holding photonic crystal fiber |
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| CN201710253898.7A CN106842418B (en) | 2017-04-18 | 2017-04-18 | A kind of hollow polarization holding photonic crystal fiber |
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| CN106842418A CN106842418A (en) | 2017-06-13 |
| CN106842418B true CN106842418B (en) | 2019-12-03 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL240808B1 (en) * | 2018-03-08 | 2022-06-06 | Polskie Centrum Fotoniki I Swiatlowodow | Fiber-optic sensor of bends and method for measuring the bends |
| CN108549128B (en) * | 2018-05-15 | 2020-04-28 | 复旦大学 | Hollow anti-resonance photonic crystal fiber coupler and application thereof |
| CN108919417B (en) * | 2018-07-26 | 2020-01-07 | 北京航空航天大学 | Hollow photonic band gap fiber based on isolation anti-resonance layer |
| FR3099649B1 (en) * | 2019-08-02 | 2021-08-20 | Univ Limoges | Electromagnetic waveguide |
| CN111812771A (en) * | 2020-06-15 | 2020-10-23 | 艾菲博(宁波)光电科技有限责任公司 | Solid core polarization maintaining high nonlinear photonic crystal fiber and preparation process thereof |
| CN115248475A (en) * | 2022-08-04 | 2022-10-28 | 艾菲博(宁波)光电科技有限责任公司 | Microstructure polarization maintaining optical fiber |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004057391A1 (en) * | 2002-12-20 | 2004-07-08 | Crystal Fibre A/S | Optical waveguide |
| CN101833129A (en) * | 2010-04-29 | 2010-09-15 | 哈尔滨工程大学 | Smelting embedded hollow multi-core polarization-preserving fiber and preparation method thereof |
| CN102073096A (en) * | 2010-11-19 | 2011-05-25 | 中国计量学院 | Micro-structured optical fiber for polarization apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7321712B2 (en) * | 2002-12-20 | 2008-01-22 | Crystal Fibre A/S | Optical waveguide |
| US20160252673A1 (en) * | 2014-01-23 | 2016-09-01 | Ofs Fitel, Llc | Polarization Maintaining Single-Mode Low-Loss Hollow-Core Fiber |
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2017
- 2017-04-18 CN CN201710253898.7A patent/CN106842418B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004057391A1 (en) * | 2002-12-20 | 2004-07-08 | Crystal Fibre A/S | Optical waveguide |
| CN101833129A (en) * | 2010-04-29 | 2010-09-15 | 哈尔滨工程大学 | Smelting embedded hollow multi-core polarization-preserving fiber and preparation method thereof |
| CN102073096A (en) * | 2010-11-19 | 2011-05-25 | 中国计量学院 | Micro-structured optical fiber for polarization apparatus |
Non-Patent Citations (1)
| Title |
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| 空芯带隙型光子晶体光纤残余双折射特性研究;李彦 等;《半导体光电》;20160430;第37卷(第2期);第207-211页 * |
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Inventor after: Zhang Huijia Inventor after: Pang Lu Inventor after: Zhang Jiaqi Inventor after: Han Zhihui Inventor after: Liang Xiaohong Inventor after: Ning Ding Inventor after: Yi Yongqing Inventor after: Pan Rong Inventor after: Wang Dongbo Inventor before: Zhang Huijia Inventor before: Pang Lu Inventor before: Zhang Jiaqi Inventor before: Han Zhihui Inventor before: Liang Xiaohong Inventor before: Ning Ding Inventor before: Yi Yongqing Inventor before: Pan Rong Inventor before: Wang Dongbo |
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