CN105068187B - A kind of preparation method of particular fiber mode coupler - Google Patents
A kind of preparation method of particular fiber mode coupler Download PDFInfo
- Publication number
- CN105068187B CN105068187B CN201510464774.4A CN201510464774A CN105068187B CN 105068187 B CN105068187 B CN 105068187B CN 201510464774 A CN201510464774 A CN 201510464774A CN 105068187 B CN105068187 B CN 105068187B
- Authority
- CN
- China
- Prior art keywords
- fiber
- mode
- optical fiber
- coupler
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Optical Couplings Of Light Guides (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention discloses a kind of preparation method of particular fiber mode coupler, the apparatus structure that this method uses includes：Single wavelength light source (101), single-mode fiber (102), less fundamental mode optical fibre (103), optical fiber clamping tensioning system (104), oxyhydrogen flame (105), optical fiber collimator (106), Charged Couple camera (107) and power meter (108).The coupler that the present invention can make can realize that light couples from basic mode to the high-purity of single order pattern, have very strong application in terms of the generation of axisymmetric vectoring light beam, mode division multiplexing using the coupler of making.The invention CGCM is pure, and coupling loss is small, and apparatus structure is simple, easy to adjust.
Description
Technical field
The present invention relates to the technical field for making fiber coupler, more particularly to a kind of system of particular fiber mode coupler
Make method.
Background technology
With the rapid development of fiber optic communication, wavelength-division multiplex can not progressively meet that communication speed modulates demand, and mould point is multiple
Paid attention to technology.Axisymmetric vectoring light beam is because its special polarization and mould field symmetry simultaneously so that it adds in laser
Work, surface plasma are excited with having very big potential application in terms of particle manipulation.On mode division multiplexing direction, current big portion
Divide using membrane technology is thrown, realize the coupling between AD HOC for different wave length customization particular fiber, complex process is unfavorable for criticizing
Quantify production and product encapsulation.In the generation of axisymmetric vectoring beam fiber-optic, mostly there is coupling in current Mode Coupling method
The problems such as efficiency is low, coupling loss is big, CGCM purity is not high or coupling response wave-length coverage is narrow.
The content of the invention
Different from existing Mode Coupling method, the present invention provides a kind of realization of the high-purity coupling of particular fiber pattern
Method, the phase matched of the different mode in two kinds of optical fiber can be obtained by being pre-stretched the stretching of single-mode fiber subsequent melt
Realize high-purity coupling of the light from basic mode to First-Order Mode.Coupler manufacture craft in the present invention is simple and reliable, couple ratio and
Coupling loss can easily be accommodated, CGCM very high purity, at the same coupler complete after be very easy to encapsulation.
The present invention solve the technical scheme that uses of above-mentioned technical problem for：A kind of making side of particular fiber mode coupler
Method, the apparatus structure that this method uses clamp tensioning system, hydrogen-oxygen by single wavelength light source, single-mode fiber, less fundamental mode optical fibre, optical fiber
Flame, optical fiber collimator, Charged Couple camera and power meter composition, the detailed process of the preparation method are：
Step 1: single-mode fiber is removed into 3cm coats, it is fixed on optical fiber clamping tensioning system, it is pre- lights oxyhydrogen flame
Hot post-tensioning 2mm, extinguish oxyhydrogen flame；
Step 2: less fundamental mode optical fibre is removed into 3.2cm coats, with being fixed on after the circle of single-mode fiber winding 2 after pre-stretching
On optical fiber clamping tensioning system and it is stretched；
Single-mode fiber is optically coupled into Step 3: opening single wavelength light source and producing monitoring, lights oxyhydrogen flame, fused optic fiber twines
Around region and stretching optical fiber, monitoring light has certain ratio when entering melt region and enters less fundamental mode optical fibre from Single-Mode Fiber Coupling
And detected by optical fiber collimator by Charged Couple camera, residue monitoring light is detected by power meter；
Step 4: the basic mode light in single-mode fiber can be caused effectively to be rolled over the First-Order Mode light in less fundamental mode optical fibre in drawing process
The rate of penetrating tends to be identical, i.e., both of which meets phase matched, and two flap hot spot figures can be obtained by now observing Charged Couple camera
Sample or ring-type hot spot pattern, power meter registration can be remarkably decreased；
Step 5: stopping stretching optical fiber, continue to melt winding zone after spot intensity reaches expected, extinguish oxyhydrogen flame
Stop melting and being packaged into fiber coupler.
Further, first pre-stretching single-mode fiber makes its cladding diameter diminish, then simultaneously fusion drawn single-mode fiber with it is few
Mode fiber, stop stretching in both of which phase matched position.
Further, after stopping stretching optical fiber, continuation fused optic fiber winding zone change both of which mould field is overlapping to make coupling
Close efficiency and reach expected, stop melting post package coupler.
Further, the optical fiber clamping tensioning system includes：Fiber clamp and three-dimensional trim holder；Fiber clamp is used to press from both sides
Hold optical fiber and be connected with three-dimensional trim holder, three-dimensional trim holder is used for optical fiber height, flame distance and optical fiber longitudinal stretching amount
Regulation.
The principle of the present invention is：Solved and understood according to the scalar of the L. Van Hée of step index fiber：Same root light
In fibre, effective index of fundamental mode is higher than single order Effective index；It is different for fibre core fibre core thickness identical from cladding index
Two kinds of optical fiber, the thinner effective refractive index of fibre core is lower.According to waveguide mode coupled wave theory, in adjacent fiber between different mode
The coefficient of coup：
Wherein κ is the unit length coefficient of coup of both of which, and positive correlation is overlapped into the mould field of both of which.For the phase mismatch of both of which, L is coupling length.So prestretching single-mode fiber makes its covering relative
Less fundamental mode optical fibre is thinner, at the same time during two kinds of optical fiber of fusion drawn, you can cause △ β to tend to 0, i.e. phase when melt region is thinner
Matching, this time can couple from single order pattern high efficiency of the basic mode in single-mode fiber into less fundamental mode optical fibre.Obtaining phase
After matching somebody with somebody, stop stretching optical fiber, i.e. preset parameter △ β and L, the friendship of both of which mould field can be changed by continuing fused optic fiber winding zone
It is folded, so as to change parameter κ, further change coupling efficiency to reach expected.
The present invention compared with prior art the advantages of be：By carrying out melting drawing to general single mode fiber and less fundamental mode optical fibre
Stretch and realize phase matched, without specific customization optical fiber.Preparation method is simple to operate, and the operations such as film fitting are thrown without carrying out optical fiber.
CGCM is extremely pure, and single order mode purity may be up to more than 99%.Product is easy to encapsulate, stable performance.Single order pattern coupling
It is wider to close wavelength response, up to more than 10nm.
Brief description of the drawings
Fig. 1 inscribes system and device schematic diagram for the present invention；Wherein, 101 be single wavelength light source, and 102 be single-mode fiber, 103
It is that optical fiber clamps tensioning system for less fundamental mode optical fibre, 104,105 be oxyhydrogen flame, and 106 be optical fiber collimator, and 107 be that Charged Couple shines
Camera, 108 be power meter.
Fig. 2 is the First-Order Mode hot spot pattern being coupled out that Charged Couple camera detects；Wherein 201 be two flap light
Spot pattern, 202 be ring-type hot spot pattern.
Embodiment
The specific embodiment of the invention is described in detail below in conjunction with the accompanying drawings, exemplified by making AD HOC fiber coupler.
As shown in Figure 1：Producing device clamps tensioning system by single wavelength light source 101, single-mode fiber 102, less fundamental mode optical fibre 103, optical fiber
104th, oxyhydrogen flame 105, optical fiber collimator 106, Charged Couple camera 107, power meter 108 form.Single-mode fiber 102 is removed
3cm coats, it is fixed on optical fiber clamping tensioning system 104, lights oxyhydrogen flame 105 and preheat post-tensioning 2mm, extinguish oxyhydrogen flame
105.Less fundamental mode optical fibre 103 is removed into 3.2cm coats, with being fixed on optical fiber clamping after the circle of single-mode fiber winding 2 after pre-stretching
On tensioning system 104 and it is stretched.Open the generation monitoring of single wavelength light source 101 and be optically coupled into single-mode fiber, light oxyhydrogen flame
105, simultaneously stretching optical fiber, monitoring light have certain ratio from single-mode fiber coupling to fused optic fiber winding zone when entering melt region
Close into less fundamental mode optical fibre and detected by optical fiber collimator by Charged Couple camera 107, residue monitoring light is visited by power meter 108
Survey.In some positions the basic mode light in single-mode fiber can be caused effectively to be reflected with the First-Order Mode light in less fundamental mode optical fibre in drawing process
Rate tends to be identical, i.e., both of which meets phase matched.Two flap hot spot figures can be obtained by now observing Charged Couple camera 107
Sample 201 or annulus shaped laser spot pattern 202, the registration of power meter 108 can be remarkably decreased.Stop stretching optical fiber, continue fused optic fiber
Winding zone change both of which is overlapping to make coupling efficiency reach expected, extinguishes oxyhydrogen flame 105 and stops melting post package coupler.
The innovation of the present invention is：Make its covering thinner with respect to less fundamental mode optical fibre by prestretching single-mode fiber, in synchronization
Cause the single order Effective index in the basic mode and less fundamental mode optical fibre in single-mode fiber in some positions when stretching two kinds of optical fiber
Putting tends to be identical, reaches phase matched.Afterwards, fused optic fiber can be continued, change pattern is overlapping until reaching expected coupling
Efficiency.
The optical fiber clamping tensioning system 104 includes：Fiber clamp, three-dimensional trim holder；Fiber clamp is used for grip optical fiber
And be connected with three-dimensional trim holder, three-dimensional trim holder is used for the regulation to optical fiber height, with flame distance and optical fiber longitudinal stretching amount.
Fig. 2 is the First-Order Mode hot spot pattern being coupled out that Charged Couple camera detects；Wherein 201 be two flaps
Hot spot pattern, 202 be ring-type hot spot pattern.
10056 although the present invention and its advantages have been described in detail, it is to be understood that, without departing substantially from by appended claim
In the case of the spirit and scope of the present invention of restriction, various change, replacement and transformation can be carried out.In addition, it is not intended to this
The scope of application be limited to technique, equipment, manufacture and material composition described in specification, means, method and steps it is specific
Embodiment.Those skilled in the art will readily recognize that those are now existing or are later discovered that from the disclosure
Technique, equipment, manufacture, material composition, means, method or step, its to it is described herein according to the present invention it is corresponding implement institute
The substantially the same function of completion that uses reaches substantially the same result.Therefore, it is desirable to appended claim by this
Technique, equipment, manufacture, material composition, means, method or the step of sample are included in the range of them.
Claims (3)
- A kind of 1. preparation method of particular fiber mode coupler, it is characterised in that：The apparatus structure that this method uses is by unicast Long light source (101), single-mode fiber (102), less fundamental mode optical fibre (103), optical fiber clamping tensioning system (104), oxyhydrogen flame (105), light Fine collimater (106), Charged Couple camera (107) and power meter (108) composition, the detailed process of the preparation method are as follows：Step 1: single-mode fiber (102) is removed into 3cm coats, it is fixed on optical fiber clamping tensioning system (104), lights hydrogen Oxygen flame (105) preheats post-tensioning 2mm, extinguishes oxyhydrogen flame (105)；Step 2: less fundamental mode optical fibre (103) is removed into 3.2cm coats, with being fixed on after the circle of single-mode fiber winding 2 after pre-stretching On optical fiber clamping tensioning system (104) and it is stretched；Single-mode fiber (102) is optically coupled into Step 3: opening single wavelength light source (101) and producing monitoring, lights oxyhydrogen flame (105), fused optic fiber winding zone and stretching optical fiber, monitoring light have certain ratio from single-mode fiber when entering melt region (102) it is coupled into less fundamental mode optical fibre (103) and is detected by optical fiber collimator (106) by Charged Couple camera (107), it is remaining Light is monitored to be detected by power meter (108)；Step 4: the basic mode light in single-mode fiber (102) and the First-Order Mode light in less fundamental mode optical fibre (103) can make it that in drawing process Effective refractive index tends to be identical, i.e., both of which meets phase matched；Two can be obtained by now observing Charged Couple camera (107) Flap hot spot pattern (201) or ring-type hot spot pattern (202), power meter (108) registration can be remarkably decreased；Step 5: stopping stretching optical fiber, continue to melt winding zone after spot intensity reaches expected, extinguish oxyhydrogen flame (105) stop melting and being packaged into fiber coupler.
- A kind of 2. preparation method of particular fiber mode coupler according to claim 1, it is characterised in that：Step 5 In, after stopping stretching optical fiber, continuation fused optic fiber winding zone change both of which mould field is overlapping to make coupling efficiency reach expected, Stop melting post package coupler.
- A kind of 3. preparation method of particular fiber mode coupler according to claim 1, it is characterised in that：The optical fiber Grab tensile system (104) includes：Fiber clamp and three-dimensional trim holder；Fiber clamp is used for grip optical fiber and and three-dimensional trim holder It is connected, three-dimensional trim holder is used for the regulation to optical fiber height, flame distance and optical fiber longitudinal stretching amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464774.4A CN105068187B (en) | 2015-07-31 | 2015-07-31 | A kind of preparation method of particular fiber mode coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464774.4A CN105068187B (en) | 2015-07-31 | 2015-07-31 | A kind of preparation method of particular fiber mode coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105068187A CN105068187A (en) | 2015-11-18 |
| CN105068187B true CN105068187B (en) | 2018-01-30 |
Family
ID=54497599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510464774.4A Active CN105068187B (en) | 2015-07-31 | 2015-07-31 | A kind of preparation method of particular fiber mode coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105068187B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019478B (en) * | 2016-05-12 | 2019-07-23 | 西安交通大学 | Highly sensitive pyrometric cone coupled mode micro-nano fiber ultrasonic testing system and its coupler production method |
| CN109029512A (en) * | 2018-06-29 | 2018-12-18 | 中国船舶重工集团公司第七〇五研究所 | A kind of fiber-optic grating sensor glass solder package system |
| CN109116471B (en) * | 2018-07-13 | 2020-10-16 | 上海大学 | Vortex light beam mode conversion coupler and manufacturing method thereof |
| CN109031531A (en) * | 2018-08-06 | 2018-12-18 | 上海大学 | A kind of mode coupler and preparation method thereof with wavelength-division multiplex function |
| CN114200587A (en) * | 2021-12-16 | 2022-03-18 | 四川天邑康和通信股份有限公司 | Production process of grating type high-isolation wavelength division multiplexer |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040870A (en) * | 1989-10-19 | 1990-03-28 | 东南大学 | Fiber optic multiport coupler and manufacture method thereof |
| CN1070487A (en) * | 1991-09-09 | 1993-03-31 | 住友电器工业株式会社 | Make and the method and apparatus of identifying fiber coupler |
| CN1175003A (en) * | 1996-07-25 | 1998-03-04 | 藤仓电线株式会社 | Optical fibre coupler and making method |
| US6078716A (en) * | 1999-03-23 | 2000-06-20 | E-Tek Dynamics, Inc. | Thermally expanded multiple core fiber |
| CN1346992A (en) * | 2000-09-29 | 2002-05-01 | 住友电气工业株式会社 | Optical fibre coupler and optical fibre for said coupler |
| DE69622778T2 (en) * | 1995-04-04 | 2002-11-28 | Nortel Networks Ltd | Manufacture of optical notch filters |
| CN1479123A (en) * | 2002-06-04 | 2004-03-03 | 古尔德光纤公司 | Fibre-optical device and method with intensified resitance to environment condition |
| TW200417762A (en) * | 2003-01-17 | 2004-09-16 | Hrl Lab Llc | Method and apparatus for coupling light |
| US6873768B2 (en) * | 2001-03-16 | 2005-03-29 | Jds Uniphase Corporation | Compact optical fiber coupler |
| JP2012088733A (en) * | 2003-09-19 | 2012-05-10 | Itf Technologies Optiques Inc-Itf Optical Technologies Inc | Optical coupler comprising multimode fiber and method of making the same |
| CN102736180A (en) * | 2012-05-30 | 2012-10-17 | 暨南大学 | Coupled micron-optical-fiber polarizer and preparation method thereof |
| CN103383477A (en) * | 2013-07-12 | 2013-11-06 | 北京大学 | Method for automatically forwardly/reversely tapering fiber |
| CN103913802A (en) * | 2014-02-27 | 2014-07-09 | 北京航天时代光电科技有限公司 | Manufacturing method of multimode optical fiber coupler based on single mode light source |
| JP2015041018A (en) * | 2013-08-22 | 2015-03-02 | 株式会社フジクラ | Connection method of optical fiber and optical fiber connection device using the same |
-
2015
- 2015-07-31 CN CN201510464774.4A patent/CN105068187B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040870A (en) * | 1989-10-19 | 1990-03-28 | 东南大学 | Fiber optic multiport coupler and manufacture method thereof |
| CN1070487A (en) * | 1991-09-09 | 1993-03-31 | 住友电器工业株式会社 | Make and the method and apparatus of identifying fiber coupler |
| DE69622778T2 (en) * | 1995-04-04 | 2002-11-28 | Nortel Networks Ltd | Manufacture of optical notch filters |
| CN1175003A (en) * | 1996-07-25 | 1998-03-04 | 藤仓电线株式会社 | Optical fibre coupler and making method |
| US6078716A (en) * | 1999-03-23 | 2000-06-20 | E-Tek Dynamics, Inc. | Thermally expanded multiple core fiber |
| CN1346992A (en) * | 2000-09-29 | 2002-05-01 | 住友电气工业株式会社 | Optical fibre coupler and optical fibre for said coupler |
| US6873768B2 (en) * | 2001-03-16 | 2005-03-29 | Jds Uniphase Corporation | Compact optical fiber coupler |
| CN1479123A (en) * | 2002-06-04 | 2004-03-03 | 古尔德光纤公司 | Fibre-optical device and method with intensified resitance to environment condition |
| TW200417762A (en) * | 2003-01-17 | 2004-09-16 | Hrl Lab Llc | Method and apparatus for coupling light |
| JP2012088733A (en) * | 2003-09-19 | 2012-05-10 | Itf Technologies Optiques Inc-Itf Optical Technologies Inc | Optical coupler comprising multimode fiber and method of making the same |
| CN102736180A (en) * | 2012-05-30 | 2012-10-17 | 暨南大学 | Coupled micron-optical-fiber polarizer and preparation method thereof |
| CN103383477A (en) * | 2013-07-12 | 2013-11-06 | 北京大学 | Method for automatically forwardly/reversely tapering fiber |
| JP2015041018A (en) * | 2013-08-22 | 2015-03-02 | 株式会社フジクラ | Connection method of optical fiber and optical fiber connection device using the same |
| CN103913802A (en) * | 2014-02-27 | 2014-07-09 | 北京航天时代光电科技有限公司 | Manufacturing method of multimode optical fiber coupler based on single mode light source |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105068187A (en) | 2015-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105068187B (en) | A kind of preparation method of particular fiber mode coupler | |
| CN100456066C (en) | Single fiber and multi-core fiber coupler and fused biconic taper coupling method thereof | |
| CN102922131B (en) | Optical fiber microsphere preparation device | |
| CN109031531A (en) | A kind of mode coupler and preparation method thereof with wavelength-division multiplex function | |
| CN107111051A (en) | Optical module and the method for producing such optical module | |
| CN102147495B (en) | Nonlinear fiber and ultrashort pulse generating device applying same | |
| CN115236795B (en) | Super-surface manufacturing method and optical fiber end face super-surface | |
| CN108051890A (en) | A kind of high efficiency low-loss all -fiber melt mode selects coupler | |
| CN109390841A (en) | A kind of return light processing method and device applied to pump combiner central branches | |
| Ismaeel et al. | Removing the directional degeneracy of $ LP_ {11} $ mode in a fused-type mode selective coupler | |
| JP2011027985A (en) | Three-wavelength optical multiplexer | |
| CN204832575U (en) | Making devices of specific optic fibre mode coupling ware | |
| CN203480085U (en) | Fiber laser beam combiner | |
| CN108627921B (en) | A kind of less fundamental mode optical fibre degenerate mode group demultiplexer and preparation method thereof based on fused biconical taper | |
| CN216748298U (en) | Single-mode double-fiber power combiner | |
| Liu et al. | A High-efficiency Silicon Nitride Edge Coupler for the Monolithically Integrated III-V-on-Si Laser | |
| CN100412586C (en) | Method and device for fabricating optical fiber coupler | |
| CN108919477A (en) | Tunable optic filter and tunable filtering method | |
| CN208636461U (en) | A kind of wavelength division multiplexer reflection end seal waist drum fixture | |
| CN205679793U (en) | A kind of one-shot forming fused biconical taper shunt | |
| CN109029512A (en) | A kind of fiber-optic grating sensor glass solder package system | |
| JP2909792B2 (en) | Manufacturing method of optical fiber coupler | |
| CN204462446U (en) | A kind of tool preparing fiber coupler | |
| CN110376680A (en) | A kind of preparation method of complete optical fiber polarization beam splitter | |
| Aktas et al. | Interfacing telecom fibers and silicon core fibers with nano-spikes for in-fiber silicon devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |