CN107422424A - A kind of optical switching array based on tunable optic filter - Google Patents
A kind of optical switching array based on tunable optic filter Download PDFInfo
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- CN107422424A CN107422424A CN201710691253.1A CN201710691253A CN107422424A CN 107422424 A CN107422424 A CN 107422424A CN 201710691253 A CN201710691253 A CN 201710691253A CN 107422424 A CN107422424 A CN 107422424A
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- Prior art keywords
- tunable
- filter
- optical switching
- light
- filter unit
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
- G02B6/2935—Mach-Zehnder configuration, i.e. comprising separate splitting and combining means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
- G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
Abstract
The invention discloses a kind of optical switching array based on tunable optic filter, input light forms output light, including tunable optic filter array after optical switching array, and the tunable optic filter array includes more than two tunable filter units；The monochromatic incident light of different wave length is mixed into secondary color incident light, there was only the light output of single wavelength after the tunable filter unit, and changes the wavelength of output light by the tunable filter unit.The present invention has the advantages that simple in construction, easy to operate, applied widely.
Description
Technical field
Present invention relates generally to optical communication field, refers in particular to a kind of optical switching array based on tunable optic filter.
Background technology
All-optical communication network turns into Large Copacity, high speed with advantages such as its huge information capacity and extremely strong antijamming capabilities
The important development direction of communication network.The rapid growth of data service and increasingly complex network architecture requirement are provided more networking
More intelligent functions, so as to when network topology and service distribution change can quick response, realize the flexible of business
Scheduling and effective management of bandwidth.Restructural add-drop multiplexer (Reconfigurable Add/Dropmultiplexer,
ROADM different network levels) is can be only fitted to, and whole network is realized by the configurable and manageable function of wavelength
Intellectuality.
Structure ROADM nodes include three kinds of major techniques：Wavelength blocks (Wavelength blocker, WB) technology, puts down
Face light path (Planar light circuit, PLC) technology and wavelength-selective switches (Wavelengthselective
Switch, WSS) technology.Wherein, for WSS technologies because having bandwidth, dispersion is low, and supports that port is unrelated with wavelength
(dimension here refers to for the optical signal of any wavelength of interface (colorless, i.e. each port can) and higher dimension
The direction number for the connection that ROADM nodes can at most provide) the features such as, and praised highly by device production manufacturer, turn into realization
ROADM mainstream technology.WSS can realize to be respectively processed to the different wave length signal in dense wave division multipurpose (DWDM), is
Build the core component of large-scale optical switching system and determine the key of all-optical network performance.
Optical switched technology decides the disposal ability of network node, is " information superhighway " development " bottleneck ", urgently
Need the optical node switching technology of Development of Novel Large Copacity.But existing WSS is by wavelength selection and output channel selection mostly
Two parts are formed.As such, it is desirable to select two components to be exchanged to complete the light in DWDM with reference to wavelength selection and output channel, knot
Structure is complicated, limits its application in following all optical communication.
The content of the invention
The technical problem to be solved in the present invention is that：For technical problem existing for prior art, the present invention provides one
The kind optical switching array simple in construction, easy to operate, applied widely based on tunable optic filter.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of optical switching array based on tunable optic filter, input light form output light after optical switching array, bag
Tunable optic filter array is included, the tunable optic filter array includes more than two tunable filter units；Different ripples
Long monochromatic incident light is mixed into secondary color incident light, there was only the light output of single wavelength after the tunable filter unit, and
Change the wavelength of output light by the tunable filter unit.
As a further improvement on the present invention：Each tunable filter unit is arranged in the tunable optic filter array
Individually control, each tunable filter unit all in accordance with need select respective wavelength monochrome light output.
As a further improvement on the present invention：Each tunable filter unit corresponds to an output channel simultaneously, together
Shi Shixian wavelength selects to select two functions with output channel.
As a further improvement on the present invention：The tunable filter unit using Fabry-Perot cavity structure or Mach-
Zeng Deer interference filters.
As a further improvement on the present invention：The modulation principle used in the tunable filter unit is electrostatic force, pressure
One or more combinations in electric power, electromagnetic force.
As a further improvement on the present invention：The monochromatic wavelength of the selected output of the tunable filter unit is according to need
To be changed by external signal, the selectable wave-length coverage of tunable filter unit includes all input light waves
It is long.
Compared with prior art, the advantage of the invention is that：
1st, the optical switching array based on tunable optic filter of the invention, the selection of collection wavelength and output channel selection and one
Body, available for OWDM networking, substantially reduce the complexity of optical switching system.
2nd, the optical switching array based on tunable optic filter of the invention, tunable optic filter are not limited to a certain knot
Structure, configuration is flexible, can extensive use.
Brief description of the drawings
Fig. 1 is the principle schematic diagram of the present invention.
Fig. 2 is the optical wavelength selecting unit principle schematic of present invention tunable filter single in concrete application example.
Marginal data：
1st, input light；2nd, tunable filter array；3rd, output light；4th, tunable filter unit；5th, monochromatic output light.
Embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
As shown in figure 1, a kind of optical switching array based on tunable optic filter of the present invention, input light 1 exchanges by light
Output light 3 is formed after array；The optical switching array of the present invention includes tunable optic filter array 2, and tunable optic filter array 2 wraps
More than two tunable filter units 4 are included；The monochromatic incident light of different wave length is mixed into secondary color incident light, through described adjustable
There was only the light output of single wavelength after filter cell 4, and change the wavelength of output light by the tunable filter unit 4.
That is, the relevant parameter by adjusting tunable filter unit 4, it is possible to change the wavelength of output light, realize wavelength selection function.
In concrete application example, each tunable filter unit 4 is arranged to individually control in tunable optic filter array 2
System, i.e., each tunable filter unit 4 can select respective wavelength monochrome light output as needed；Further, it is each adjustable
Filter cell 4 corresponds to an output channel simultaneously, can realize that wavelength selection selects two functions with output channel simultaneously, from
And the function that light exchanges is realized, form and the tunable optical that wavelength selection is rolled into one with output channel selection function is exchanged into battle array
Row, available for OWDM networking, substantially reduce the complexity of optical switching system.
It is single for the optical wavelength selection of present invention tunable filter unit 4 single in concrete application example with reference to shown in Fig. 2
The principle schematic of member.Secondary color incident light 1 containing different wave length, there was only the list of single wavelength after tunable filter unit 4
Color output light 5 exports.With reference to the above understand, tunable filter unit 4 can realize optical wavelength selection function, when with
After the polychromatic light of multi-wavelength enters tunable filter unit 4, only entrance can be exported with the monochromatic light that wave filter matches
Corresponding selector channel.Moreover, the monochromatic wavelength of the selected output of tunable filter unit 4 can be as desired by additional
Signal is changed, and 4 selectable wave-length coverage of tunable filter unit includes all input optical wavelengths.
In concrete application example, tunable filter unit 4 is not limited to a certain structure, as long as being that by light
Filtering, and it is adjustable, it can need to filter using Fabry-Perot cavity structure, Mach Zehnder interference with practical application
Device or other structures.By the relevant parameter for adjusting tunable filter unit 4, it is possible to change the wavelength of output light, realize ripple
The function of long selection；Its modulation principle or mode can be electrostatic force, piezoelectric forces, electromagnetic force etc., be not limited to a certain kind.These
All should be within protection scope of the present invention.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention, the protection of the present invention should be regarded as
Scope.
Claims (6)
1. a kind of optical switching array based on tunable optic filter, input light (1) forms output light after optical switching array
(3), it is characterised in that including tunable optic filter array (2), the tunable optic filter array (2) includes two or more
Tunable filter unit (4)；The monochromatic incident light of different wave length is mixed into secondary color incident light, through the tunable filter unit
(4) there was only the light output of single wavelength afterwards, and change the wavelength of output light by the tunable filter unit (4).
2. the optical switching array according to claim 1 based on tunable optic filter, it is characterised in that the tunable filter
Each tunable filter unit (4) is arranged to individually control in ripple device array (2), each tunable filter unit (4) all in accordance with
Need to select respective wavelength monochrome light output.
3. the optical switching array according to claim 2 based on tunable optic filter, it is characterised in that each described adjustable
Filter cell (4) while a corresponding output channel, while realize that wavelength selection selects two functions with output channel.
4. according to the optical switching array based on tunable optic filter described in claim 1 or 2 or 3, it is characterised in that it is described can
Tunable filter unit (4) uses Fabry-Perot cavity structure or Mach Zehnder interference wave filter.
5. according to the optical switching array based on tunable optic filter described in claim 1 or 2 or 3, it is characterised in that it is described can
The modulation principle used in tunable filter unit (4) is the one or more combination in electrostatic force, piezoelectric forces, electromagnetic force.
6. according to the optical switching array based on tunable optic filter described in claim 1 or 2 or 3, it is characterised in that it is described can
The monochromatic wavelength of the selected output of tunable filter unit (4) is changed as desired by external signal, the adjustable filter
Ripple device unit (4) selectable wave-length coverage includes all input optical wavelengths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710691253.1A CN107422424A (en) | 2017-08-14 | 2017-08-14 | A kind of optical switching array based on tunable optic filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710691253.1A CN107422424A (en) | 2017-08-14 | 2017-08-14 | A kind of optical switching array based on tunable optic filter |
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| Publication Number | Publication Date |
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| CN107422424A true CN107422424A (en) | 2017-12-01 |
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| CN201710691253.1A Pending CN107422424A (en) | 2017-08-14 | 2017-08-14 | A kind of optical switching array based on tunable optic filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108696A (en) * | 2021-04-06 | 2021-07-13 | 合肥埃科光电科技有限公司 | Light source wavelength scanning spectrum confocal sensor |
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| CN106526753A (en) * | 2017-01-12 | 2017-03-22 | 中国计量大学 | Low-loss-type multichannel wavelength division multiplexer |
| CN106672893A (en) * | 2016-12-29 | 2017-05-17 | 深圳先进技术研究院 | Tunable filter and tunable filter array |
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|---|---|---|---|---|
| CN1359475A (en) * | 1999-07-02 | 2002-07-17 | 布雷兹网络产品公司 | Optical wavelength division multiplexer/demultiplexer having preformed passively aligned optics |
| CN1360683A (en) * | 1999-07-12 | 2002-07-24 | 康宁股份有限公司 | Dynamically configurable spectral filter |
| CN1588148A (en) * | 2004-09-09 | 2005-03-02 | 上海交通大学 | Tunable wave length selection/locking light dense wave division complex combining wave/channel splitting filter |
| CN101203784A (en) * | 2005-06-08 | 2008-06-18 | 威瑞森全球商务有限责任公司 | Undamaged tunable filter |
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