CN104483735B - All-fiber mode converter light system - Google Patents
All-fiber mode converter light system Download PDFInfo
- Publication number
- CN104483735B CN104483735B CN201410628299.5A CN201410628299A CN104483735B CN 104483735 B CN104483735 B CN 104483735B CN 201410628299 A CN201410628299 A CN 201410628299A CN 104483735 B CN104483735 B CN 104483735B
- Authority
- CN
- China
- Prior art keywords
- mode
- fiber
- coupling
- fibre
- mode converter
- 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
Classifications
-
- 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
- G02B6/14—Mode converters
-
- 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
- G02B6/02004—Optical fibres with cladding with or without a coating characterised by the core effective area or mode field radius
- G02B6/02009—Large effective area or mode field radius, e.g. to reduce nonlinear effects in single mode fibres
- G02B6/02023—Based on higher order modes, i.e. propagating modes other than the LP01 or HE11 fundamental mode
-
- 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
- G02B6/02214—Optical fibres with cladding with or without a coating tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
- G02B6/02219—Characterised by the wavelength dispersion properties in the silica low loss window around 1550 nm, i.e. S, C, L and U bands from 1460-1675 nm
- G02B6/02252—Negative dispersion fibres at 1550 nm
- G02B6/02261—Dispersion compensating fibres, i.e. for compensating positive dispersion of other fibres
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Optical Integrated Circuits (AREA)
Abstract
The invention relates to an all-fiber mode converter and a light system. The all-fiber mode converter comprises a mode coupling fiber portion and a fiber portion of a mode peeler which are connected, a light system structure of the all-fiber mode converter comprises an input fiber, a first mode field adapter, an all-fiber mode converter, a second mode field adapter and an output fiber which are sequentially welded to realize mode conversion, a first spreading mode is transmitted from the input fiber through the first mode field adapter to the all-fiber mode converter at the lowest loss rate, and only a second spreading mode exists after the all-fiber mode converter, and the second spreading mode is transmitted through the second mode field adapter to the output fiber at the lowest loss rate for output. The all-fiber mode converter is for fiber mode conversion and further has advantages of easy realization, high conversion efficiency and small conversion noise.
Description
Technical field
The present invention relates to a kind of photosystem of all -fiber mode converter.
Background technology
Optical fiber is a kind of by glass or the fiber of plastic production, and the principle by the use of the total reflection of light is conducted as light
Instrument.The naked fibre of optical fiber is generally divided into three layers：Center is glass of high refractive index fibre core, and centre is low-refraction silica glass bag
Layer, outermost is the resin coating layer of reinforcement.Optical signal is limited in transmission in fibre core, for this purpose, fiber core refractive index n1It is greater than
Refractive index n of fibre cladding2。
Refractive index profile is commonly known as according to the figure that fiber radius draw refractive index.Typically there is step index point
Cloth, trapezoidal index distribution, triangular refractive index distribution etc..According to theory of fiber, different index distributions can be realized not
Same fiber optic applications.For example, single-mode fiber is mainly distributed using step index, and the index distribution of self-focusing optical fiber is typically adopted
With parabola shaped graded index profile.
It is well known that a kind of just electromagnetic wave.Therefore, it is possible to describe fiber middle light signal using maxwell equation group
Transmission situation.One solution of maxwell equation group correspond to a kind of transmission mode, correspond to electromagnetic field in a fiber
A kind of distribution form.According to distribution form, the pattern of circular waveguide can be divided into：Transverse electric mode (TE), TM mode (TM) and mixing
Mould (HE or EH).In addition to above-mentioned guided wave mould, also cladding mode, radiation mode and tunnelling ray.
In actual applications, fiber core refractive index and fibre cladding specific refractivity are very littles, and this optical fiber is claimed
For weakly guiding optical fiber.Using the scalar approximation solution of weakly guiding optical fiber, relatively simple transverse intensity distribution and mathematical table can be obtained
Up to formula, be conducive to the analysis of fiber problem.
Fibre-optic transmission system (FOTS) generally uses single-mode fiber, i.e., only basic mode (LP01) is guided modes.However, high-order mode has negative
Dispersion and the characteristic of bigger effective coverage, have special application at the aspect such as optical fiber flat gain and dispersion compensation.Then, will
It is necessary that basic mode is converted into higher order mode.
Mainly there are two kinds of main optical mode conversion methods at present.First method, referred to as transverse method, by delay
Change the transverse intensity distribution of signal in certain point of the element on the fiber-optic signal direction of propagation.Above-mentioned delay element introduces controlled
Phase jump, it is assumed that all elements can ideally align, then this technology in theory can be by the first pattern 100%
It is transformed into second pattern.
Therefore, patent US6404951 B2 proposes a kind of method changed come implementation pattern based on phase selection elements,
This phase selection elements include refraction or reflecting element, such as lens, speculum, grating etc..This kind of mode converter
Design it is complicated, relative volume is huge and environmental suitability is poor, therefore, it is difficult to long-term work, and it is very big to adjust difficulty.
In view of above-mentioned factor, patent US7835603 B2 proposes a kind of all -fiber mode converter, this converter
Lenticular function is realized using tapered fiber, and the function of Selecting phasing is realized using extraordinary multimode fibre, then welding is each
Individual part, finally realizes the conversion of fiber mode.But this method is required quite for manufacture crafts such as fused fiber splice, drawing cones
Strictly, so batch production difficult to realize.
Second method, referred to as longitudinal method, the direction along lightray propagation introduces periodically disturbance, such to disturb
The dynamic coupling caused between basic model and higher order mode.However, this method is unable to reach 100% Mode Coupling, i.e. base
Mould and high-order mode in a fiber together with propagate and produce noise.
Patent US6999659 B1 just proposes a kind of patten transformation element for being applied to reduce dispersion.Two are inserted in optical fiber
To Bragg grating so that transmit basic mode (LP01) and at least one higher order mode (LPmn) in optical fiber, mend so as to reach dispersion
The effect repaid.
The content of the invention
In order to overcome the defect of present mode converter, the present invention to propose that one kind has and realize simple, high conversion efficiency, turn
Change noise it is little the features such as all -fiber mode converter photosystem.
The technical scheme is that：
A kind of photosystem of all -fiber mode converter, including：Including input optical fibre, two mould field adaptations, all -fibers
Mode converter, output optical fibre, it is characterised in that：Input optical fibre, first mould field adaptation, all -fiber mode converter,
Two mould field adaptations, output optical fibres are welded together successively, to reach the purpose of patten transformation；The first communication mode is from defeated
Enter optical fiber and all -fiber mode converter is transferred to minimum loss through first mould field adaptation, turn through all -fiber pattern
Second communication mode is only existed after parallel operation in optical fiber, then will be described with minimum loss through second mould field adaptation
Second communication mode be transferred to output optical fibre and export.
Input optical fibre is suitable to send the optical signal relayed with the first pattern；
First mould field adaptation is suitable to the matching of the mode field diameter of input optical fibre and all -fiber mode converter；
All -fiber mode converter is suitable to the first propagation mode conversion into second communication mode；
Second mould field adaptation is suitable to the matching of the mode field diameter of all -fiber mode converter and output optical fibre；
Output optical fibre is suitable to send with the optical signal of second mode propagation.
Output optical fibre is suitable to send with the optical signal of second mode propagation.
Described the first communication mode and second communication mode are different communication modes LPmn.
One of the input optical fibre, output optical fibre optical fiber is multimode fibre.
One of the input optical fibre, output optical fibre optical fiber is higher order mode (HOM) optical fiber.
One of the input optical fibre, output optical fibre optical fiber is dispersion compensating fiber.
One of the input optical fibre, output optical fibre optical fiber is Bragg grating component fiber.
One of the input optical fibre, output optical fibre optical fiber is amplifying fiber.
The amplifying fiber is laser emission fiber or raman amplification fiber.
Described all -fiber mode converter is made up of the fiber section of Mode Coupling and the fiber section of pattern stripper,
The fiber section that the fiber section of the Mode Coupling and pattern are peeled off is engagement；The fiber section of the Mode Coupling is suitable for
Coupling between the first communication mode and second communication mode；The fiber section of the pattern stripper is applied to be peeled off
The communication mode of cladding mode, radiation mode and leakage mould in addition to second communication mode.
The fiber section of described Mode Coupling has predetermined length, a predetermined index distribution, predetermined core diameter and
Predetermined inner core path position.
The fiber section that described pattern is peeled off has cladding index, the fibre core matched with the fiber section of Mode Coupling
Refractive index, cladding diameter and core diameter.
The length of the fiber section of described Mode Coupling is what spread fiber pattern was coupled between fibre core and interior fibre core
Cycle.
The index distribution of the fiber section of described Mode Coupling includes one or more transition.
The core diameter of the fiber section of described Mode Coupling is 0.5 micron to 100 microns.
The interior fibre core position of the fiber section of described Mode Coupling is the maximum position of the transverse field amplitude of high-order mode.
The length of the fiber section that described pattern is peeled off at least needs the fiber section predetermined length more than Mode Coupling.
The length of the fiber section that described pattern is peeled off is 10000 microns to 100,000 microns.
The present invention for fiber mode conversion, with simple, high conversion efficiency is realized, the features such as conversion noise is little.
Description of the drawings
Fig. 1 is the schematic diagram of the photosystem of all -fiber mode converter for including the present invention.
Fig. 2 is the structural representation of all -fiber mode converter of the present invention.
Fig. 3 is that the cross section of Mode Coupling (LP01-LP02) fiber section of all -fiber mode converter of the present invention shows
It is intended to.
Fig. 4 is the refractive index point of Mode Coupling (LP01-LP02) fiber section of all -fiber mode converter of the present invention
Cloth.
Fig. 5 is the transverse field point of Mode Coupling (LP01-LP02) fiber section of all -fiber mode converter of the present invention
Cloth.
Fig. 6 is that the cross section of Mode Coupling (LP01-LP11) fiber section of all -fiber mode converter of the present invention shows
It is intended to.
Fig. 7 is that the cross section of Mode Coupling (LP01-LP21) fiber section of all -fiber mode converter of the present invention shows
It is intended to.
Fig. 8 is the energy curves of the LP01 and LP02 mode of energy in Mode Coupling fiber section of the present invention.
Fig. 9 is the energy curves that the gross energy and LP02 mode of energy of the present invention peels off fiber section in pattern.
Specific embodiment
The present invention is described further with reference to accompanying drawing.
As shown in figure 1, the photosystem of all -fiber mode converter of the present invention, including 10, two mould field matchings of input optical fibre
Device (20,40), all -fiber mode converter (30), output optical fibre (50), input optical fibre (10), first mould field adaptation
(20), all -fiber mode converter (30), second mould field adaptation (40), output optical fibre (50) are welded together successively, with
Reach the purpose of patten transformation.The first communication mode is from input optical fibre 10 through first mould field adaptation (20) with minimum
Loss is transferred to all -fiber mode converter (30), and in optical fiber after all -fiber mode converter (30) second is only existed
Communication mode, is then transferred to second described communication mode with minimum loss through second mould field adaptation (40)
Output optical fibre 50 and export.
It is as shown in Figure 2 the structural representation of the mode converter of the present invention, by fiber section (31), the mould of Mode Coupling
Fiber section (32) composition that formula is peeled off, the two is engagement.Fiber section (31) of the first communication mode in Mode Coupling
Second pattern and other unstable patterns are wholly converted into, other unstable patterns are：Cladding mode, radiation mode and let out
Dew mould.The fiber section (32) that these unstable patterns are peeled off in pattern is stripped away, finally export for it is stable not
The optical signal of second communication mode with any noise.
Fig. 3 is the cross-sectional of the fiber section of the Mode Coupling of all -fiber mode converter of the present invention, and Fig. 4 is
Its corresponding index distribution.The optical fiber of the particular design can realize LP01 to the coupling of LP02 patterns.The light of Mode Coupling
Fine part (31) includes：Covering (31.1), fibre core (31.2), interior fibre core (31.3).Fibre core (31.2) is constituted with covering (31.1)
First fiber waveguide, fibre core (31.2) constitutes second fiber waveguide with interior fibre core (31.3).The first pattern is in Mode Coupling
When transmitting in fiber section, energy is changed periodically between above-mentioned first fiber waveguide and second fiber waveguide, its coupling
Cycle is L.Therefore, in the propagation direction at L, the energy in second fiber waveguide reaches maximum.For predetermined covering, fibre
The horizontal stroke of second communication mode in the parameter of core, interior fibre core, the horizontal field distribution in second fiber waveguide and first waveguide
It is the most similar to field distribution.Herein, the coupling efficiency of second communication mode reaches maximum, while the first communication mode
All be converted to second communication mode and other unstable cover half.Then, fiber section (32) is peeled off through pattern, it is unstable
Pattern be stripped away.Finally, only remain second communication mode to be transferred in output optical fibre.
The position of the interior fibre core (31.3) of the fiber section (31) of above-mentioned Mode Coupling, in different patten transformation applications
It is different.Its position is at the peak swing of the horizontal field distribution of the high-order mode in conversion.As shown in figure 3, being that LP01 turns
The cross-sectional view of the fiber section of the Mode Coupling of the mode converter of LP02, the amplitude of the horizontal field distribution of LP02 patterns
Maximum is reached at optical fiber axle center, therefore, the position of interior fibre core (31.3) is at optical fiber axle center；As shown in fig. 6, being that LP01 turns
The cross-sectional view of the fiber section of the Mode Coupling of the mode converter of LP11, the amplitude of the horizontal field distribution of LP02 patterns
Maximum is reached at r=4 μm of fiber radius, therefore, the position of interior fibre core (31.3) is at r=4 μm of fiber radius；Such as Fig. 7 institutes
Show, be the cross-sectional view of the Mode Coupling fiber section of all -fiber mode converter that LP01 turns LP21, LP21 patterns
Laterally the amplitude of field distribution at r=7.5 μm and r=-7.5 μm place of fiber radius while reach maximum, therefore, the patten transformation
Device has two interior fibre cores (31.3), and its position is respectively at r=7.5 μm and r=-7.5 μm of fiber radius.
The fibre core and covering parameter of the fiber section (31) of above-mentioned Mode Coupling, be in different patten transformation applications
Different.First, can propagate in a fiber to ensure the higher order mode (LPmn) changed, covering and the corresponding normalizing of fibre core
Change the normalization cut-off frequency V1 of high-order mode (LPmn) of frequency V more than conversion.Secondly, in order to not inspire higher order pattern
(LPmn ', wherein n '=n+1), covering and corresponding normalized frequency V of fibre core are cut less than the normalization of higher order mould (LPmn ')
Only frequency V2.Root it was found that covering and fibre core corresponding normalized frequency V more large model conversion efficiency are higher, therefore, according to bag
Normalized frequency V that the parameter of layer and fibre core is calculated should be as close as V2.
The refractive index and core diameter of the interior fibre core of the fiber section of above-mentioned Mode Coupling, be in different patten transformation applications
Different.Interior fibre core is combined into second fiber waveguide with fibre core, and covering is combined into first fiber waveguide with fibre core, according to above-mentioned reason
By at the coupling period L in Optical Fiber Transmission direction, when the horizontal field distribution of second fiber waveguide, with first fiber waveguide
When the horizontal field distribution of two patterns coincide the most, mode conversion efficiency reaches maximum.Therefore, the folding of fibre core in specific is designed
The size of rate and core diameter is penetrated, to ensure suitable laterally field distribution.As shown in figure 5, being that LP01 turns the of LP02 mode converters
The horizontal field distribution (dotted line) of basic mode in two fiber waveguides, and in first fiber waveguide second communication mode (LP02) it is horizontal
Field distribution (solid line).
By taking the mode converter that LP01 turns LP02 as an example, index distribution such as Fig. 4 institutes of Mode Coupling conversion portion optical fiber
Show, cladding diameter is 200 μm, and refractive index is 1.485；Core diameter is 31 μm, and refractive index is 1.487；Interior fibre core is in optical fiber
Center, a diameter of 9 μm, refractive index is 1.4894；The length of Mode Coupling conversion portion optical fiber is 271 μm.As shown in figure 8,
Lightray propagation direction Z, LP01 mode of energy constantly reduces, and LP02 mode of energy is continuously increased.At 271 μm, LP02 patterns
Energy reach and be the energy of 86%, LP01 patterns to the maximum and reach minimum of a value close 0%.Now optical signal transmission Dietary behavior stripping
From fiber section, its cladding diameter is 200 μm, and refractive index is 1.485；Core diameter is 31 μm, and refractive index is 1.487；Pattern
The fiber lengths of released part are at least 20mm.As shown in figure 9, the gross energy (solid line) of transmission signal is gradually reduced in optical fiber,
Until of substantially equal with the energy (dotted line) of LP02 patterns.The optical signal of LP01 patterns through the present invention mode converter it
Afterwards, the energy for having 86% is converted into the energy of LP02 patterns, and remaining 14% energy is converted into other mode of energy and finally quilt
Stripping is gone out.
Claims (7)
1. a kind of photosystem of all -fiber mode converter, including：Input optical fibre（10）, two mould field adaptations（20,40）, it is complete
Optical fibre mode converter（30）, output optical fibre（50）, it is characterised in that：Input optical fibre（10）, first mould field adaptation（20）、
All -fiber mode converter（30）, second mould field adaptation（40）, output optical fibre（50）It is welded together successively；
Input optical fibre（10）It is suitable to send the optical signal relayed with the first pattern；
First mould field adaptation（20）It is suitable to input optical fibre（10）With the matching of the mode field diameter of all -fiber mode converter；
All -fiber mode converter（30）It is suitable to the first propagation mode conversion into second communication mode；
Second mould field adaptation（40）It is suitable to all -fiber mode converter and output optical fibre（50）Mode field diameter matching；
Output optical fibre（50）It is suitable to send with the optical signal of second mode propagation；
Described all -fiber mode converter（30）By the fiber section of Mode Coupling（31）The fiber section peeled off with pattern
（32）Composition, the fiber section of the Mode Coupling（31）The fiber section peeled off with pattern（32）It is engagement；The pattern
The fiber section of coupling（31）Suitable for the coupling between the first communication mode and second communication mode；The pattern is peeled off
Fiber section（32）Propagating mode suitable for peeling off cladding mode, radiation mode and leakage mould in addition to second communication mode
Formula；The fiber section of described Mode Coupling has predetermined length, a predetermined index distribution, predetermined core diameter and predetermined
Inner core path position；The interior fibre core position of the fiber section of described Mode Coupling is the maximum position of the transverse field amplitude of high-order mode
Put.
2. the photosystem of all -fiber mode converter according to claim 1, it is characterised in that：Described the first propagating mode
Formula and second communication mode are different communication modes LPmn；The input optical fibre（10）, output optical fibre（50）One of light
Fibre is multimode fibre.
3. the photosystem of all -fiber mode converter according to claim 1, it is characterised in that：What described pattern was peeled off
Fiber section has cladding index, fiber core refractive index, cladding diameter and the fibre core matched with the fiber section of Mode Coupling
Diameter.
4. the photosystem of all -fiber mode converter according to claim 1, it is characterised in that：Described Mode Coupling
The length of fiber section is the cycle that spread fiber pattern is coupled between fibre core and interior fibre core.
5. the photosystem of all -fiber mode converter according to claim 1, it is characterised in that：Described Mode Coupling
The index distribution of fiber section includes one or more transition.
6. the photosystem of all -fiber mode converter according to claim 1, it is characterised in that：Described Mode Coupling
The core diameter of fiber section is 0.5 micron to 100 microns.
7. the photosystem of all -fiber mode converter according to claim 1, it is characterised in that：What described pattern was peeled off
The length of fiber section is 10000 microns to 100,000 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410628299.5A CN104483735B (en) | 2014-11-10 | 2014-11-10 | All-fiber mode converter light system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410628299.5A CN104483735B (en) | 2014-11-10 | 2014-11-10 | All-fiber mode converter light system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104483735A CN104483735A (en) | 2015-04-01 |
| CN104483735B true CN104483735B (en) | 2017-05-10 |
Family
ID=52758299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410628299.5A Active CN104483735B (en) | 2014-11-10 | 2014-11-10 | All-fiber mode converter light system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104483735B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105022117B (en) * | 2015-07-23 | 2018-06-01 | 江苏大学 | A kind of long-period fiber grating mould field converter based on twin-core fiber |
| CN105629381B (en) * | 2016-01-04 | 2019-03-01 | 北京邮电大学 | Fiber mode rotator, all -fiber pattern multiplexer and demultiplexer |
| CN105785509B (en) * | 2016-01-14 | 2019-01-25 | 武汉锐科光纤激光技术股份有限公司 | A kind of optical fibre mode converter and preparation method thereof |
| CN105891957B (en) * | 2016-06-15 | 2019-01-08 | 北京邮电大学 | A kind of single order OAM pattern generation system of all -fiber |
| CN107518862A (en) * | 2016-06-20 | 2017-12-29 | 魏晋 | A kind of optical fiber and imaging method of integrated optical coherence and incoherent imaging system |
| CN109581590B (en) * | 2018-09-03 | 2020-09-04 | 暨南大学 | LP01 mode-LPmn mode all-fiber mode converter |
| SG11202103114VA (en) | 2018-10-03 | 2021-04-29 | Lumenisity Ltd | Optical waveguide adapter assembly |
| CN109765663A (en) * | 2019-02-22 | 2019-05-17 | 武汉锐科光纤激光技术股份有限公司 | A kind of dual-headed laser transmission cable and preparation method thereof |
| CN110515159B (en) * | 2019-08-15 | 2020-06-02 | 华中科技大学 | LP based on fiber end face microstructure01-LPmnAll-fiber mode converter and preparation method thereof |
| CN113093332B (en) * | 2021-03-18 | 2022-11-08 | 上海大学 | All-fiber tapered mode converter |
| CN113219594B (en) * | 2021-05-13 | 2021-12-10 | 合肥正阳光电科技有限责任公司 | Fast optical fiber coupler for optical fiber telephone |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184945A (en) * | 1997-12-26 | 1998-06-17 | 清华大学 | Nonreciprocal trasmission method of full optical fiber and full optical fiber isolator |
| CN101014891A (en) * | 2004-09-08 | 2007-08-08 | 阿尔卡特朗讯公司 | A mode converter |
| CN102650717A (en) * | 2012-05-14 | 2012-08-29 | 上海大学 | Multi-mode/single-mode optical fiber connector based on double-clad optical fiber |
| CN103969221A (en) * | 2013-01-25 | 2014-08-06 | 中国计量学院 | Optical fiber refractive index sensor based on single mode-fine core-multimode-single mode structure |
| CN204287535U (en) * | 2014-11-10 | 2015-04-22 | 武汉锐科光纤激光器技术有限责任公司 | A kind of all-fiber mode converter and photosystem |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050033188A (en) * | 2003-10-06 | 2005-04-12 | 광주과학기술원 | Mode converter, mode conditioning patch cord and connecting device using the same |
-
2014
- 2014-11-10 CN CN201410628299.5A patent/CN104483735B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184945A (en) * | 1997-12-26 | 1998-06-17 | 清华大学 | Nonreciprocal trasmission method of full optical fiber and full optical fiber isolator |
| CN101014891A (en) * | 2004-09-08 | 2007-08-08 | 阿尔卡特朗讯公司 | A mode converter |
| CN102650717A (en) * | 2012-05-14 | 2012-08-29 | 上海大学 | Multi-mode/single-mode optical fiber connector based on double-clad optical fiber |
| CN103969221A (en) * | 2013-01-25 | 2014-08-06 | 中国计量学院 | Optical fiber refractive index sensor based on single mode-fine core-multimode-single mode structure |
| CN204287535U (en) * | 2014-11-10 | 2015-04-22 | 武汉锐科光纤激光器技术有限责任公司 | A kind of all-fiber mode converter and photosystem |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104483735A (en) | 2015-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104483735B (en) | All-fiber mode converter light system | |
| CN101738688B (en) | Multimode optical system | |
| Takenaga et al. | Reduction of crosstalk by trench-assisted multi-core fiber | |
| WO2011116109A1 (en) | Techniques and devices for low-loss, modefield matched coupling to a multicore fiber | |
| CN101852887A (en) | Optical fiber and fiber device that chromatic dispersion is arranged | |
| KR20120125994A (en) | A mode converter | |
| CN102749304B (en) | High sensitivity photonic crystal fiber refractive index sensor and method for preparing same | |
| JP2012048248A (en) | Double-core optical fiber | |
| CN106226867A (en) | A kind of optical fiber high-order mode formula peels off device | |
| Park et al. | All-fiber mode division multiplexer optimized for C-band | |
| Kopp et al. | Ultra-low-loss MCF fanouts for submarine SDM applications | |
| CN102338905B (en) | Optical fiber for transmitting terahertz waves | |
| GB2588058A (en) | Enhanced microbend sensor | |
| CN204287535U (en) | A kind of all-fiber mode converter and photosystem | |
| CN210518339U (en) | Optical fiber transmission mode control device | |
| JP2022545472A (en) | Reduction of coupling loss between optical fibers | |
| CN107533193A (en) | Fiber design method | |
| US11054577B1 (en) | Hybrid fiber coupler and manufacturing method thereof | |
| CN113866872A (en) | Mode controller of multi-core optical fiber to few-mode optical fiber | |
| CN104749689A (en) | Middle-infrared-band dispersion compensator | |
| CN107533192A (en) | Photonic crystal fiber | |
| CN110967791B (en) | Hole-assisted dual-core optical fiber mode converter based on cone | |
| CN102866455B (en) | Large mode field optical fiber transmission system | |
| CN102354017B (en) | Terahertz transmission fiber | |
| CN113093332B (en) | All-fiber tapered mode converter |
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 | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 430074 East Lake science and technology zone, Wuhan province high tech Avenue, No. 999, the future of science and technology city of the city of Hubei Patentee after: WUHAN RAYCUS FIBER LASER TECHNOLOGIES CO., LTD. Address before: 430223 East Lake New Technology Development Zone, Huazhong University of Science and Technology, Wuhan science and technology park innovation base, building No. 10, building No. Patentee before: Wuhan Raycus Fiber Laser Technologies Co., Ltd. |