CN103718486B - optical device, device and optical network system - Google Patents
optical device, device and optical network system Download PDFInfo
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- CN103718486B CN103718486B CN201380001928.5A CN201380001928A CN103718486B CN 103718486 B CN103718486 B CN 103718486B CN 201380001928 A CN201380001928 A CN 201380001928A CN 103718486 B CN103718486 B CN 103718486B
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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
- G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
- G02B6/29362—Serial cascade of filters or filtering operations, e.g. for a large number of channels
- G02B6/29365—Serial cascade of filters or filtering operations, e.g. for a large number of channels in a multireflection configuration, i.e. beam following a zigzag path between filters or filtering operations
- G02B6/29367—Zigzag path within a transparent optical block, e.g. filter deposited on an etalon, glass plate, wedge acting as a stable spacer
Abstract
The invention provides a kind of optical device, device and optical network system, the optical device includes：First incidence zone, incident for the light of the light of at least first wave length and second wave length to be carried out, the light of the first wave length and the light of the second wave length after incidence enter refracting sphere；The refracting sphere, for the light of the light of the first wave length and second wave length to be reflected, the light of the first wave length after refraction and the light of the second wave length enter filtering area；For the light of the second wave length reflected by the filtering area to be reflected, the light of the second wave length after refraction enters the echo area；And the light of the second wave length reflected the echo area is reflected, the light of the second wave length after refraction enters the filtering area；The filtering area, the light of the first wave length for the refracting sphere to be reflected is transmitted, and exports the light of the first wave length, the light of the second wave length is reflexed into the refracting sphere；And transmitted the second wave length that echo area is reflected, export the light of second wave length；The echo area, the light of the second wave length for the refracting sphere to be reflected is reflected, and the light of the second wave length after reflection enters the refracting sphere.Employ the structure of novel optical device so that the volume of current multiplexer and demultiplexer is smaller, and structure is simpler, and reduces the crosstalk between unlike signal, improves single channel power output.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of optical device, device and optical network system.
Background technology
At present, in time-division wavelength-division hybrid multiplex（TWDM, Time Wavelength Division Multiplexing）Nothing
Source optical-fiber network（PON, Passive Optical Network）In, optical line terminal（OLT, Optical Line Terminal）
Include the emitter of four autonomous workings, frequency interval is 100 Gigahertz GHz, and each emitter launches a wavelength letter
Number, four wavelength signals are multiplexed into an optical fiber by a multiplexer, through optical fiber and beamsplitter to each optical-fiber network list
Member（ONU, Optical Network Unit）, the received wave of ONU end is a length of adjustable, so as to pick out the letter of corresponding wavelength
Number detected and optical line terminal is carried out the road wavelength of optical fiber Zhong tetra- after partial wave by four independences by demultiplexer
The receiver machine of work is received.
In TWDM-PON, emitter or receiver work independently, and frequency interval will meet 100GHz as defined in standard,
When the emitter or receiver are using intensive multiplexer or intensive demultiplexer, corresponding intensive multiplexer and close
The volume of collection type demultiplexer is sufficiently small can be inherited in emitter or receiver, and needs to ensure that wavelength interval meets mark
Accurate regulation, but the wavelength division multiplexer or demultiplexer volume used at present is big, it is complicated, it is impossible to meet above-mentioned want
Ask.
The content of the invention
In view of this, the embodiments of the invention provide a kind of optical device, device and system, for solving existing at present to make
Multiplexer and demultiplexer volume are big, complicated, it is impossible to the problem of satisfaction is required.
In a first aspect, the present invention provides a kind of optical device, the optical device includes：First incidence zone, refracting sphere, filtering area
And echo area；
First incidence zone, it is incident for the light of the light of at least first wave length and second wave length to be carried out, after incidence
The light of the first wave length and the light of the second wave length enter refracting sphere；
The refracting sphere, it is described after refraction for the light of the light of the first wave length and second wave length to be reflected
The light of first wave length and the light of the second wave length enter filtering area；For second ripple that will be reflected by the filtering area
Long light is reflected, and the light of the second wave length after refraction enters the echo area；And the echo area is reflected
The light of second wave length is reflected, and the light of the second wave length after refraction enters the filtering area；
The filtering area, the light of the first wave length for the refracting sphere to be reflected is transmitted, and exports described the
The light of one wavelength, the refracting sphere is reflexed to by the light of the second wave length；And carry out the second wave length that echo area is reflected
Transmission, exports the light of second wave length.
The echo area, the light of the second wave length for the refracting sphere to be reflected is reflected, and after reflection
The light of two wavelength enters the refracting sphere.
In the first possible implementation of first aspect, the refracting sphere is wedge shape Jie with certain refractive index
Texture into.
With reference to the first possible implementation of first aspect or first aspect, in second of possible implementation
In, the echo area includes at least a piece of speculum, and any one speculum and vertical plane have specific angle.
Second with reference to the first possible implementation or first aspect of first aspect, first aspect is possible
In implementation, in the third possible implementation, the filtering area includes at least a piece of filter plate, and described any one
Film filtering slice is arranged on a surface of the wedge-shaped medium.
Second aspect, the invention provides a kind of another optical device, in the first possible realization side of second aspect
In formula, the optical device includes：Second incidence zone, filtering area, echo area and refracting sphere；
The incidence zone, for the light of the light of the first wave length received and second wave length to be incided into the filtering area；
The filtering area, for the incident light of the first wave length and the light of the second wave length to be transmitted, enters
Enter the refracting sphere；
The refracting sphere, for the light of the light of the first wave length and the second wave length to be reflected so that described
The light of second wave length enters the echo area, and the light of the first wave length is projected after being reflected；And the echo area is anti-
The light for the second wave length penetrated is reflected so that the light of the second wave length reflected after with the light of the first wave length together
Project；
The echo area, after the light of the second wave length is reflected, into the refracting sphere.
With reference to the first possible implementation of second aspect or second aspect, in second of possible implementation
In, the refracting sphere is constituted for the wedge-shaped medium with certain refractive index.
Second with reference to the first possible implementation or second aspect of second aspect, second aspect is possible
Implementation, in the third possible implementation, the echo area includes at least a piece of speculum, and described any one anti-
That penetrates mirror and vertical plane has specific angle.
Second of possible reality of the first possible implementation, second aspect with reference to second aspect, second aspect
Existing mode, in the third possible implementation or in the 4th kind of possible implementation, the filtering area is included at least
A piece of filter plate, and any one film filtering slice is arranged on a surface of the wedge-shaped medium.
The third aspect, the invention provides a kind of demultiplexer, the demultiplexer includes first aspect to first aspect
The third possible implementation optical device.
Fourth aspect, the invention provides a kind of multiplexer, the multiplexer includes second aspect to the of second aspect
The optical device of four kinds of possible implementations.
5th aspect, the invention provides a kind of optical network system, the optical network system includes optical line terminal and light
NE, the optical line terminal includes first aspect to the optical device of the third possible implementation of first aspect
And/or the optical device of the 4th kind of possible implementation including second aspect to second aspect.
A kind of optical device provided by such scheme, solves the existing multiplexer used at present and demultiplexing body
Product is big, complicated, it is impossible to the problem of satisfaction is required so that the optical device after improvement disclosure satisfy that the requirement of various standards, and
And small volume, and it is simple in construction.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, being used required in being described below to embodiment
Accompanying drawing be briefly described.It should be evident that drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, on the premise of not paying creative work, it can also obtain other according to these accompanying drawings
Accompanying drawing.
A kind of structural representation for optical network system that Fig. 1 provides for the present invention；
A kind of structural representation for optical device that Fig. 2 provides for the present invention；
A kind of detailed construction schematic diagram of each component for optical device that Fig. 3 provides for the present invention；
A kind of a kind of structural representation for optical device that Fig. 4 provides for the present invention；
A kind of another structural representation for optical device that Fig. 5 provides for the present invention；
A kind of another structural representation for optical device that Fig. 6 provides for the present invention；
A kind of another structural representation for optical device that Fig. 7 provides for the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described.Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is a kind of structural representation of optical network system provided in an embodiment of the present invention.
For the structural representation of passive optical network provided in an embodiment of the present invention, the system includes：Optical link is whole
OLT and optical network unit ONU are held, wherein, the optical line terminal and/or optical network unit include：As described in above-mentioned embodiment
Optical sender 1.
Preferably, the passive optical network can be TWDM-PON systems, specific as follows：
TWDM-PON is by the OLT of office side, the ONU of user side or ONT Optical Network Terminal（ONT, Optical Network
Terminal）And Optical Distribution Network（ODN, Optical Distribution Network）Composition.EPON is general
Using the topological structure of tree-shaped, the typical TWDM-PON network architectures by taking the framework as an example as shown in figure 1, illustrate below.
Wherein, the structure of the optical sender 1 described in 1 to 5 is illustrated in the OLT or ONU using above-described embodiment.
OLT provides Network Side Interface for PON system, connects one or more ODN.ODN is passive optical splitters part, for even
Connect OLT device and optical network unit（ONU, Optical Network Unit）Or ONT Optical Network Terminal（ONT, Optical
Network Terminal）Equipment, for distributing or being multiplexed the data-signal between OLT and ONU or ONT.ONU is PON systems
System provides user side interface, is connected with ODN.If ONU directly provides the ethernet user of User Port Function, such as PC online
Port, then referred to as ONT.Without specified otherwise, the ONU systems being mentioned below refer to ONU and ONT.Fig. 1 includes 4 optical senders with OLT
Exemplified by Tx1~Tx4 and 4 photoreceiver Rx1~Rx4.
It is referred to as descending from OLT to ONU in TWDM-PON systems；Conversely, to be up from ONU to OLT.Up direction and
Down direction respectively has multiple（≥1）Assume that uplink and downlink respectively there are 4 wavelength, are coexisted, mutually not in WDM modes in wavelength, Fig. 1
Interference.
In the downstream direction, OLT 4 optical sender Tx1~Tx4, respectively with the optical signal broadcast downstream of different wave length
Data, by being output to ODN trunk optical fiber after multiplexer, coupler, each ONU are transferred to through ODN, ONU is connect using adjustable
Receipts machine, receives downlink broadcast data-signal wherein in a downstream wavelength.
In the upstream direction, ONU adjustable transmitter uses one of upstream wavelength, with time division multiple acess（TDMA, Time
Division Multiple Access）Mode launches burst luminous signal, OLT is reached by ODN trunk optical fiber, through OLT's
Coupler and demultiplexer, the optical signal of different wave length are received by 4 different receiver Rx1~Rx4 respectively.Same upgoing wave
Each ONU in length, data are transmitted using TDMA modes, i.e., be that each ONU distributes time slot by OLT, each ONU must be strict
Data are sent according to the OLT time slots distributed, so as to ensure that upstream data is not clashed.
In actual TWDM-PON networks, possible network topology structure can be：There is an OLT frame（chassis）, it is many
It is individual PON mouthfuls（port）All in one piece of board（linecard）On, it is connected by wavelength multiplexing device with ODN；Or, there is one
OLT frames and polylith board, every piece of board have at least one PON mouthfuls, and multiple PON mouthfuls are connected by wavelength multiplexing device with ODN；
Or, there are an at least two OLT frames, each OLT frames have a polylith board, every piece of board has at least one PON mouthfuls, multiple
PON mouthfuls are connected by wavelength multiplexing device with ODN.
OLT boards have two kinds of ports, and one kind is network-side port, with Ethernet（ETH, Ethernet）Or IP network or
Person's asynchronous transfer mode（ATM, Asynchronous Transfer Mode）/ SDH（SDH, synchronous
digital hierarchy）Network connection；Another is PON mouthfuls, is connected by ODN with each ONU.On same OLT boards
It is different PON mouthfuls, it can be communicated by OLT board internal bus；, can between different OLT boards in same OLT frames
By its network-side port, to be communicated by the core bus of frame；The OLT boards of different OLT frames, can by with frame
The networks such as the ETH networks or IP network ATM network of connection communicate.
The multiplexer and demultiplexer mentioned in said system framework, can be that wavelength division multiplexer and wavelength-division are demultiplexed
Device, the concrete structure of the multiplexer is improved, using the optical device being made up of incidence zone, refracting sphere, filtering area and echo area
The multiplexer or demultiplexer are constituted, realizes that partial wave and each road wavelength to reception are carried out to the wavelength of transmitting carries out multiplex
Function.Specifically refer to specific introduction of the example below to multiplexer and demultiplexer.
From the foregoing, the optical line terminal in passive optical network provided in an embodiment of the present invention, the system is adopted
With the structure of new multiplexer and the optical device of demultiplexer so that the volume of current multiplexer and demultiplexer is more
Small, structure is simpler, and reduces the crosstalk between unlike signal, improves single channel power output.
Fig. 2 is refer to, Fig. 2 is a kind of structural representation of optical device provided in an embodiment of the present invention, wherein, the optical device
Including：First incidence zone, refracting sphere, filtering area and echo area；
First incidence zone（It is incidence zone in figure）, for the light of the light of at least first wave length and second wave length to be carried out
Incidence, the light of the first wave length and the light of the second wave length after incidence enter refracting sphere.
The refracting sphere, it is described after refraction for the light of the light of the first wave length and second wave length to be reflected
The light of first wave length and the light of the second wave length enter filtering area；For second ripple that will be reflected by the filtering area
Long light is reflected, and the light of the second wave length after refraction enters the echo area；And the echo area is reflected
The light of second wave length is reflected, and the light of the second wave length after refraction enters the filtering area.
Optionally, the refracting sphere is made up of wedge-shaped medium block, and the wedge-shaped medium block can be the wedge shape that certain refractive index is n
Glass is constituted.
The filtering area, the light of the first wave length for the refracting sphere to be reflected is transmitted, and exports described the
The light of one wavelength, the refracting sphere is reflexed to by the light of the second wave length；And carry out the second wave length that echo area is reflected
Transmission, exports the light of second wave length.
Optionally, the filtering area can be made up of at least a piece of filter plate, and the filter plate can be film filtering slice,
Any one film filtering slice can be made up of the different filter plate of at least two panels refractive index and is arranged on the wedge-shaped medium
On one surface.
The echo area, the light of the second wave length for the refracting sphere to be reflected is reflected, and after reflection
The light of two wavelength enters the refracting sphere.
The echo area can be made up of at least a piece of speculum, and any one speculum and vertical plane have spy
Fixed angle.
The optical device can be demultiplexer, and the optical signal of incident first wave length and second wave length is passed through into demultiplexing
After device, the light of first wave length and the light of second wave length are separately exported.The demultiplexer can be arranged on above-mentioned passive optical network
In optical line terminal in network system embodiment.
Specifically, the detailed construction schematic diagram of each component of the optical device by taking two beam incident lights as an example as shown in figure 3, carry out
Introduce, but be not limited to the two beams incident light.
When incident light is respectively the optical signal that wavelength is λ 1 and λ 2, λ 1 and λ 2 incidence angle are A, and refracting sphere is by angle
θ, refractive index is constituted for n wedge-shaped medium block, and the filtering area is the filtering that a piece of or multi-disc is attached to wedge-shaped medium block side
Piece（The filter plate can be film filtering slice）Constitute, the echo area is a piece of or multi-disc with a vertical the anti-of D angles
Penetrate mirror composition.Wherein, λ 1 and λ 2 optical signal enter is reflected in wedge-shaped medium block, is refracted to after the first filter plate, wavelength
Filter plate is passed through for λ 1 optical signal, wavelength is reflected back toward in wedge-shaped medium block for λ 2 optical signal, to reflection after superrefraction
Reflected on mirror.Wherein, the refraction of the wavelength is λ 2 optical signal and by filter plate reflect between angle be α, you can to manage
Solution is that the optical signal that wavelength is λ 2 incides the angle of filter plate, and wavelength is λ 2 optical signal incident direction and the folder of reflection direction
Angle is β, and the angle of speculum and vertical direction is D, and the relation between these angles can be as follows：
A=arc(n sin(q-a))；b=arc(n sin(q+a))-arc(n sin(q-a)；
Position and angle between filter plate and speculum and wedge-shaped medium block is determined with the relation between upper angle to close
System, when α is that light enters to inject the angle of filter plate from medium, by taking the glass medium of n=1.5 as an example, air incidence to diaphragm angle
1.5 °, therefore α=1 °, it is above-mentioned be for example, with the incident filter plate of low-angle, the P polarization of this optical signal is overlapped with S-polarization,
Without polarization diversity so that high using the optical device accuracy of the structure；Utilize the hypotenuse and the folding of medium and air of wedge shape
The relation of rate is penetrated, the incidence angle of optical signal and the angle of angle of reflection has been widened, therefore, weight is played in wedge-shaped side to reducing light path size
Act on；In addition, speculum can accurately adjust the angle for inciding filter plate, with big tolerance, easy technique so that reflection
Mirror has larger rotation tolerance, can accurately adjust incidence angle.Therefore, the compact conformation of the optical device, simple, small volume, and
Effect is good.
In addition, in above-mentioned optical device when incident light is four road optical signal, when filter plate is a piece of, in order that obtaining different ripples
Long optical signal can be separated, speculum be separation, at least three separation speculum, can be controlled by speculum into
The angle of filter plate is mapped to so that the optical signal of incidence reflection mirror can preferably incide filter plate, so as to pass through filter plate
Separated, in this case, the speculum and the angles of Ф 1 of vertical direction that at least three separate are all identical, can carry out micro-
Adjust, specifically refer to accompanying drawing 4；If by the integrated a piece of speculum of speculum of this at least three separation, filter plate is segmented into
At least three, it is adjusted into the angle of three film filtering slices simultaneously using a speculum, the speculum anglec of rotation is served
Fine setting effect to the angle of incident filter plate, the i.e. rotation of speculum has larger tolerance, reduces process complexity, specifically please
Referring to accompanying drawing 5；It can also be the filter plate and at least three speculums separated using at least three separation, pass through three separation
Speculum can also accurately adjust the angle that incident light enters filter plate, and then play a part of partial wave, specifically refer to attached
Fig. 6.
Fig. 7 is refer to, Fig. 7 is the structural representation of another optical device provided in an embodiment of the present invention, the optical device
Including：Second incidence zone, filtering area, echo area and refracting sphere；
Second incidence zone, for the light of the light of the first wave length received and second wave length to be incided into the filtering
Area.
The filtering area, for the incident light of the first wave length and the light of the second wave length to be transmitted, enters
Enter the refracting sphere.
Optionally, the refracting sphere is made up of wedge-shaped medium block, and the wedge-shaped medium block can be the wedge-shaped glass that certain refractive index is n
Glass is constituted.
The refracting sphere, for the light of the light of the first wave length and the second wave length to be reflected so that described
The light of second wave length enters the echo area, and the light of the first wave length is projected after being reflected；And the echo area is anti-
The light for the second wave length penetrated is reflected so that the light of the second wave length is carried out after being reflected with the light of the first wave length
Exported after multiplex.
Optionally, the filtering area can be made up of at least a piece of filter plate, and the filter plate can be film filtering slice,
Any one film filtering slice can be made up of the different filter plate of at least two panels refractive index and is arranged on the wedge-shaped medium
On one surface.
The echo area, after the light of the second wave length is reflected, into the refracting sphere.
The echo area can be made up of at least a piece of speculum, and any one speculum and vertical plane have spy
Fixed angle.
The optical device is a kind of multiplexer, and the optical signal of incident first wave length and second wave length is passed through into multiplexer
Afterwards, carry out multiplex and export.The multiplexer can be arranged on the optical line terminal in above-mentioned passive optical network embodiment
In.
Specifically, the detailed construction schematic diagram of each component of the optical device can also as shown in figure 3, using two beam incident lights as
Example is introduced, but is not limited to the two beams incident light.
When incident light is respectively the optical signal that wavelength is λ 2, λ 2 optical signal enters refracting sphere by filtering area, refraction
After incide echo area and reflected, be again introduced into refracting sphere, filtering area entered after refraction, by the reflection of filtering area from refracting sphere
Project；Wavelength is transmitted into refracting sphere for λ 1 optical signal after filtering, after superrefraction, is closed with wavelength for λ 2 optical signal
Exported after ripple.Wherein, λ 1 and λ 2 is carried out after multiplex, and the angle of emergence is A, and refracting sphere is θ by angle, and refractive index is n wedge-shaped medium
Block is constituted, and the filtering area is the filter plate that a piece of or multi-disc is attached to wedge-shaped medium block side（The filter plate can be film
Filter plate）Constitute, the echo area is that a piece of or multi-disc is constituted with a vertical the speculum at D angles.The wavelength is λ 2
Optical signal refraction and by filter plate reflect between angle be α, α is that can be understood as the optical signal that wavelength is λ 2 to incide
The angle of filter plate, optical signal incident direction and the angle of reflection direction that wavelength is λ 2 are β, speculum and vertical direction folder
Angle is D, and the relation between these angles can be as follows：
A=arc(n sin(q-a))；b=arc(n sin(q+a))-arc(n sin(q-a)；
Position and angle between filter plate and speculum and wedge-shaped medium block is determined with the relation between upper angle to close
System, the angular relationship of embodiment corresponding with Fig. 3 is consistent, and simply the direction of optical signal reversely, carries out incidence from filtering area, played
It is effect and above-described embodiment 3 on the contrary, carrying out wavelength for λ 1 and λ 2 optical signal exporting after multiplex.Therefore, have
Above-mentioned optical device also has compact conformation, simple, small volume, and effect it is good the characteristics of.
In addition, the optical device mentioned of the embodiment can also reference picture 4- Fig. 6 description, the direction of optical signal is reversely
Can, therefore the optical device of the embodiment is simply introduced with reference to above-mentioned Fig. 4-Fig. 6.Filter plate in the optical device is a piece of
When, in order that obtaining the optical signal of different wave length can merge, speculum is separation, the speculum of at least three separation, Ke Yitong
Cross speculum to control to incide the angle of filter plate so that the optical signal of speculum can preferably incide filter plate, from
And make it that the optical signal of different wave length exported after multiplex, and in this case, the speculum and Vertical Square of at least three separation
To the angles of Ф 1 it is all identical, can be finely adjusted, specifically refer to accompanying drawing 4；If the speculum of this at least three separation is integrated
A piece of speculum, then filter plate be segmented at least three, using a speculum simultaneously be adjusted into three film filtering slices
Angle, the speculum anglec of rotation serves the effect of the fine setting to incident filter plate angle, i.e. the rotation of speculum has larger
Tolerance, reduces process complexity, specifically refers to accompanying drawing 5；It can also be the filter plate and at least three using at least three separation
The speculum of piece separation, the angle that incident light enters filter plate can also be accurately adjusted by the speculum of three separation, and then
Play a part of multiplex, specifically refer to accompanying drawing 6.
The embodiment of the present invention additionally provides a kind of demultiplexer, refers to the demultiplexer in system diagram 1, the demultiplexer
Respectively enterd after being separated to the optical signals of the different wavelength of reception in receiver.The demultiplexer includes Fig. 2-Fig. 6's
Optical device, the optical device includes：First incidence zone, refracting sphere, filtering area and echo area；
First incidence zone, it is incident for the light of the light of at least first wave length and second wave length to be carried out, after incidence
The light of the first wave length and the light of the second wave length enter refracting sphere；
The refracting sphere, it is described after refraction for the light of the light of the first wave length and second wave length to be reflected
The light of first wave length and the light of the second wave length enter filtering area；For second ripple that will be reflected by the filtering area
Long light is reflected, and the light of the second wave length after refraction enters the echo area；And the echo area is reflected
The light of second wave length is reflected, and the light of the second wave length after refraction enters the filtering area；
The filtering area, the light of the first wave length for the refracting sphere to be reflected is transmitted, and exports described the
The light of one wavelength, the refracting sphere is reflexed to by the light of the second wave length；And carry out the second wave length that echo area is reflected
Transmission, exports the light of second wave length.
The echo area, the light of the second wave length for the refracting sphere to be reflected is reflected, and after reflection
The light of two wavelength enters the refracting sphere.
The specific descriptions of the optical device for referring to Fig. 2-Fig. 6 of specific demultiplexer, are just repeated no more here.
The embodiment of the present invention additionally provides a kind of multiplexer, refers to the multiplexer in system diagram 1, and the multiplexer is to difference
Wavelength optical signal carry out multiplex after respectively from Single port export.The multiplexer includes optical device as described in Figure 7, institute
Stating optical device includes：Second incidence zone, filtering area, echo area and refracting sphere；
Second incidence zone, for the light of the light of the first wave length received and second wave length to be incided into the filtering
Area；
The filtering area, for the incident light of the first wave length and the light of the second wave length to be transmitted, enters
Enter the refracting sphere；
The refracting sphere, for the light of the light of the first wave length and the second wave length to be reflected so that described
The light of second wave length enters the echo area, and the light of the first wave length is projected after being reflected；And the echo area is anti-
The light for the second wave length penetrated is reflected so that the light of the second wave length is carried out after being reflected with the light of the first wave length
Exported after multiplex；
The echo area, after the light of the second wave length is reflected, into the refracting sphere.
The specific descriptions of the optical device for referring to Fig. 7 of specific multiplexer, are just repeated no more here.
The embodiment of the present invention also provides a kind of optical network system, and the optical network system refers to Fig. 1, and specific optical link is whole
End includes multiplexer and demultiplexer, wherein the multiplexer refers to the description of Fig. 7 and corresponding embodiment, the solution
Multiplexer refers to the description of Fig. 2-Fig. 6 and corresponding embodiment.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be with
Realized with hardware, or firmware is realized, or combinations thereof mode is realized.When implemented in software, can be by above-mentioned functions
It is stored in computer-readable medium or is transmitted as one or more instructions on computer-readable medium or code.Meter
Calculation machine computer-readable recording medium includes computer-readable storage medium and communication media, and wherein communication media includes being easy to from a place to another
Any medium of individual place transmission computer program.Storage medium can be any usable medium that computer can be accessed.With
Exemplified by this but it is not limited to：Computer-readable medium can include RAM, ROM, EEPROM, CD-ROM or other optical disc storages, disk
Storage medium or other magnetic storage apparatus or can be used in carrying or store with instruction or data structure form expectation
Program code and can by computer access any other medium.In addition.Any connection can be suitably turn into computer
Computer-readable recording medium.If for example, software is to use coaxial cable, optical fiber cable, twisted-pair feeder, Digital Subscriber Line（DSL）Or such as
The wireless technology of infrared ray, radio and microwave etc is transmitted from website, server or other remote sources, then coaxial electrical
The wireless technology of cable, optical fiber cable, twisted-pair feeder, DSL or such as infrared ray, wireless and microwave etc is included in affiliated medium
In fixing.As used in the present invention, disk（Disk）And dish（disc）Including compression laser disc（CD）, laser disc, laser disc, numeral it is logical
Use laser disc（DVD）, floppy disk and Blu-ray Disc, the replicate data of the usual magnetic of which disk, and dish is then replicated with laser come optical
Data.Above combination above should also be as being included within the protection domain of computer-readable medium.
In a word, the preferred embodiment of technical solution of the present invention is the foregoing is only, is not intended to limit the present invention's
Protection domain.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in
Within protection scope of the present invention.
Claims (9)
1. a kind of optical device, it is characterised in that the optical device includes：First incidence zone, refracting sphere, filtering area and echo area；
First incidence zone, it is incident for the light of the light of at least first wave length and second wave length to be carried out, it is described after incidence
The light of first wave length and the light of the second wave length enter refracting sphere；
The refracting sphere, for the light of the light of the first wave length and second wave length to be reflected, described first after refraction
The light of wavelength and the light of the second wave length enter filtering area；For the second wave length that the filtering area reflects will to be passed through
Light is reflected, and the light of the second wave length after refraction enters the echo area；And to the second of echo area reflection
The light of wavelength is reflected, and the light of the second wave length after refraction enters the filtering area, wherein, the refracting sphere be with
The wedge-shaped medium of certain refractive index is constituted；
The filtering area, the light of the first wave length for the refracting sphere to be reflected is transmitted, and exports the first wave
Long light, the refracting sphere is reflexed to by the light of the second wave length；And transmitted the second wave length that echo area is reflected,
Export the light of second wave length；
The echo area, the light of the second wave length for the refracting sphere to be reflected is reflected, the second ripple after reflection
Long light enters the refracting sphere, wherein, the light that the echo area is used to adjust the second wave length after the reflection was incided
Filter the angle in area.
2. optical device according to claim 1, it is characterised in that the echo area includes at least a piece of speculum, any
The angle D of the speculum and vertical plane is met：
<mrow>
<mi>D</mi>
<mo>=</mo>
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
<mi>&beta;</mi>
<mo>+</mo>
<mi>A</mi>
<mo>-</mo>
<mi>&theta;</mi>
<mo>,</mo>
</mrow>
Wherein, β for the light of the second wave length incide the direction of the speculum and the direction reflected by the speculum it
Between angle, A incides the incident angle of the refracting sphere for the light of the second wave length, θ be in the refracting sphere respectively with
The angle for the plane that first incidence zone is connected with the filtering area.
3. optical device according to claim 1, it is characterised in that the filtering area includes at least a piece of filter plate, and appoints
Filter plate described in one is arranged on a surface of the wedge-shaped medium.
4. a kind of optical device, it is characterised in that the optical device includes：Second incidence zone, filtering area, echo area and refracting sphere；
Second incidence zone, for the light of the light of the first wave length received and second wave length to be incided into the filtering area；
The filtering area, for the incident light of the first wave length and the light of the second wave length to be transmitted, into institute
State refracting sphere；It is additionally operable to be reflected the light of the second wave length reflected through the echo area；
The refracting sphere, for the light of the light of the first wave length and the second wave length to be reflected so that described second
The light of wavelength enters the echo area, and the light of the first wave length is projected after being reflected；And reflect the echo area
The light of second wave length is reflected so that the light of the second wave length incides the filtering area, after being reflected through the filtering area
The refracting sphere is entered back into, the light of the light of the second wave length after superrefraction and the first wave length exported after multiplex, its
In, the refracting sphere is constituted for the wedge-shaped medium with certain refractive index；
The echo area, after the light of the second wave length is reflected, into the refracting sphere, wherein, the reflection
The angle of filtering area is incided for adjusting the light of the second wave length after the reflection in area.
5. optical device according to claim 4, it is characterised in that the echo area includes at least a piece of speculum, any
The angle D of the speculum and vertical plane is met：
<mrow>
<mi>D</mi>
<mo>=</mo>
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
<mi>&beta;</mi>
<mo>+</mo>
<mi>A</mi>
<mo>-</mo>
<mi>&theta;</mi>
<mo>,</mo>
</mrow>
Wherein, β for the light of the second wave length incide the direction of the speculum and the direction reflected by the speculum it
Between angle, A incides the incident angle of the refracting sphere for the light of the second wave length, θ be in the refracting sphere respectively with
The angle for the plane that first incidence zone is connected with the filtering area.
6. optical device according to claim 4, it is characterised in that the filtering area includes at least a piece of filter plate, and appoints
Filter plate described in one is arranged on a surface of the wedge-shaped medium.
7. a kind of demultiplexer, it is characterised in that the demultiplexer includes any one smooth device as described in claim 1-3
Part.
8. a kind of multiplexer, it is characterised in that the multiplexer includes any one optical device as described in claim 4-6.
9. a kind of optical network system, the optical network system includes optical line terminal and optical network unit, it is characterised in that described
Optical line terminal includes any one optical device as described in claim 1-3 and any one smooth device as described in claim 4-6
Part.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/083519 WO2015035624A1 (en) | 2013-09-14 | 2013-09-14 | Optical component, apparatus and optical network system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103718486A CN103718486A (en) | 2014-04-09 |
| CN103718486B true CN103718486B (en) | 2017-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380001928.5A Active CN103718486B (en) | 2013-09-14 | 2013-09-14 | optical device, device and optical network system |
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| Country | Link |
|---|---|
| CN (1) | CN103718486B (en) |
| WO (1) | WO2015035624A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114740571A (en) * | 2022-04-08 | 2022-07-12 | 西安炬光科技股份有限公司 | Optical multiplexing system and optical filter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441272A (en) * | 2002-02-25 | 2003-09-10 | 台达电子工业股份有限公司 | Configurable optical access multiplexer |
| CN2636507Y (en) * | 2003-08-28 | 2004-08-25 | 深圳飞通光电股份有限公司 | Interleave muiltiplexing component element |
| CN1601308A (en) * | 2003-09-26 | 2005-03-30 | 日立麦克赛尔株式会社 | Wavelength on-off wave separator |
| CN2901712Y (en) * | 2006-04-14 | 2007-05-16 | 上海未来宽带技术及应用工程研究中心有限公司 | Wave division multiplexer |
| CN101056153A (en) * | 2006-04-14 | 2007-10-17 | 上海未来宽带技术及应用工程研究中心有限公司 | Wave division multiplexer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0306634D0 (en) * | 2003-03-22 | 2003-04-30 | Qinetiq Ltd | Optical wavelength division multiplexer/demultiplexer device |
| CN100495096C (en) * | 2004-05-26 | 2009-06-03 | Hoya株式会社 | Optical module and optical wavelength multiplexer/demultiplexer |
-
2013
- 2013-09-14 CN CN201380001928.5A patent/CN103718486B/en active Active
- 2013-09-14 WO PCT/CN2013/083519 patent/WO2015035624A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441272A (en) * | 2002-02-25 | 2003-09-10 | 台达电子工业股份有限公司 | Configurable optical access multiplexer |
| CN2636507Y (en) * | 2003-08-28 | 2004-08-25 | 深圳飞通光电股份有限公司 | Interleave muiltiplexing component element |
| CN1601308A (en) * | 2003-09-26 | 2005-03-30 | 日立麦克赛尔株式会社 | Wavelength on-off wave separator |
| CN2901712Y (en) * | 2006-04-14 | 2007-05-16 | 上海未来宽带技术及应用工程研究中心有限公司 | Wave division multiplexer |
| CN101056153A (en) * | 2006-04-14 | 2007-10-17 | 上海未来宽带技术及应用工程研究中心有限公司 | Wave division multiplexer |
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| Publication number | Publication date |
|---|---|
| WO2015035624A1 (en) | 2015-03-19 |
| CN103718486A (en) | 2014-04-09 |
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