CN108169858A - A kind of Multi-wavelength selector switch - Google Patents
A kind of Multi-wavelength selector switch Download PDFInfo
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- CN108169858A CN108169858A CN201810016439.1A CN201810016439A CN108169858A CN 108169858 A CN108169858 A CN 108169858A CN 201810016439 A CN201810016439 A CN 201810016439A CN 108169858 A CN108169858 A CN 108169858A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 162
- 230000003287 optical effect Effects 0.000 claims abstract description 146
- 239000006185 dispersion Substances 0.000 claims abstract description 41
- 238000003491 array Methods 0.000 claims abstract description 11
- 230000010287 polarization Effects 0.000 claims description 38
- 238000012545 processing Methods 0.000 claims description 17
- 239000013307 optical fiber Substances 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 6
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 2
- 239000000306 component Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 18
- 230000009977 dual effect Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 10
- 239000013078 crystal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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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
- G02B6/35—Optical coupling means having switching means
- G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
- G02B6/3542—Non-blocking switch, e.g. with multiple potential paths between multiple inputs and outputs, the establishment of one switching path not preventing the establishment of further switching paths
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- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The invention discloses a kind of Multi-wavelength selector switchs.The Multi-wavelength selector switch includes input/output unit, beam steering devices, dispersion means, multicenter deflection conversion equipment, focusing device and arrangement for deflecting；Wherein input/output unit includes at least two groups of input and output arrays and stacks setting along optical signal deflection dimension；Multicenter deflection conversion equipment includes at least two groups of deflection conversion sub-devices, every group of deflection conversion sub-device includes the deflection conversion equipment comprising at least one truncation surface, the truncation surface deflects dimension perpendicular with optical signal, and the truncation surface of two adjacent groups deflection conversion sub-device is disposed adjacent in optical signal deflection dimension；The quantity of deflection conversion sub-device is identical with the quantity of input and output array.Multi-wavelength selector switch provided by the invention can realize multiple independent wavelength-selective switches, have the advantages that of simple structure and low cost.
Description
Technical field
The present embodiments relate to optical communication field more particularly to a kind of Multi-wavelength selector switchs.
Background technology
With the fast development of mobile broadband, video, cloud business etc., global bandwidth demand increases explosively, to transmission
Network bandwidth brings huge pressure, and flexibly, high speed, intelligence upgrades as optical-fiber network and the direction of evolution, and wavelength selection is opened
Pass is core component therein.In general, an optical network node needs to configure multiple wavelength-selective switches, to operator into
This and cabinet space cause very big pressure.
Dual wavelength selecting switch is on the basis of single wavelength-selective switches device, by increasing a small amount of component, in fact
Existing two sets of mutually independent wavelength-selective switches devices.At present, dual wavelength selecting switch technology is mainly two input optical signals
Orthogonal polarization state is transformed into, two input optical signals are separated using different polarization state so that two input lights
Signal is located at the different height position of arrangement for deflecting, so as to which arrangement for deflecting can carry out independent process to two optical signals, realizes
Dual wavelength selecting switch.
This method needs that an additional polarization manipulation module is set to convert the input signal of two wavelength-selective switches
Two input optical signals are separated into orthogonal two polarization states, then by polarization spectro crystal, usually require that dispersion
Device is provided simultaneously with high-diffraction efficiency to two polarization states, and complicated, cost is higher.Also, input signal is converted
Into the optical signal of orthogonal two polarization states, that is, determine that this method can only realize dual wavelength selecting switch, Wu Fashi
Existing Multi-wavelength selector switch.
Invention content
The present invention provides a kind of Multi-wavelength selector switchs, and on the basis of single wavelength-selective switches, deflection is converted
Device is modified, and without changing parameter and the position of other components, realizes more mutually independent wavelength-selective switches devices of set
Part.
An embodiment of the present invention provides a kind of Multi-wavelength selector switch, including：Input/output unit, beam steering devices,
Dispersion means, multicenter deflection conversion equipment, focusing device and arrangement for deflecting；
The input/output unit is used for input/output beam；The input/output unit includes at least two groups of input and output
Array, at least two groups of input and output arrays stack setting along optical signal deflection dimension；Input and output array packet described in every group
At least one input port and at least one output port are included, the input port and the output port are inclined along the optical signal
Maintenance handover degree arranges；The optical signal deflection dimension is switched to the dimension of output port for optical signals input port；
The beam steering devices pass through the light beam of input port incidence for adjusting；
The dispersion means are used to separate the light of different wave length in the light beam in signal chromatic dispersion dimension, wherein institute
It states signal chromatic dispersion dimension and deflects dimension perpendicular with the optical signal；
The multicenter deflection conversion equipment is used to collimate the light beam in optical signal deflection dimension；It is described more
Center deflection conversion equipment includes at least two groups of deflection conversion sub-devices, and deflection conversion sub-device is included at least one described in every group
The deflection conversion equipment that a truncation surface blocks, the truncation surface and the optical signal deflect dimension perpendicular, described in two adjacent groups partially
It walks around and changes the truncation surface of sub-device and be disposed adjacent in optical signal deflection dimension；It is described deflection conversion sub-device quantity with
The quantity of the input and output array is identical；
The focusing device is used for different wave length that will be separated in signal chromatic dispersion dimension after the dispersion means
Light focus on the arrangement for deflecting；
The arrangement for deflecting is used in the optical signal deflect the light for setting wavelength in the light beam in dimension with default
Angular deflection；
Optionally, in optical signal deflection dimension, positioned at the described inclined of multicenter deflection conversion equipment both ends
Walk around change sub-device optical center distance be h；
The arrangement for deflecting includes signal processing window, and the signal processing window is in optical signal deflection dimension
Size is D；
Spot size of the light beam on the signal processing window of the arrangement for deflecting is d；
Wherein, (n-1) d≤h≤D-d, n are the quantity of the Multi-wavelength selector switch neutron wavelength selecting switch.
Optionally, the multicenter deflection conversion equipment includes the first deflection conversion sub-device and the second deflection conversion son dress
It puts, the first deflection conversion sub-device and the second deflection conversion sub-device are stacked in optical signal deflection dimension and set
It puts；
The first deflection conversion sub-device is included in blocks with the first truncation surface of optical signal deflection dimension perpendicular
Deflection conversion equipment；The second deflection conversion sub-device is included in blocks with the second of optical signal deflection dimension perpendicular
The deflection conversion equipment that face is blocked；
In optical signal deflection dimension, the optical centre of the first deflection conversion sub-device is blocked with described first
The distance between face is h1；The distance between the optical centre of the second deflection conversion sub-device and second truncation surface are
h2；Wherein, h=h1+h2.
Optionally, the multicenter deflection conversion equipment includes the first deflection conversion sub-device, the second deflection conversion son dress
It puts and deflects conversion sub-device, the first deflection conversion sub-device, third deflection conversion sub-device and described the with third
Two deflection conversion sub-devices stack setting in optical signal deflection dimension；
The first deflection conversion sub-device is included in blocks with the first truncation surface of optical signal deflection dimension perpendicular
Deflection conversion equipment；The second deflection conversion sub-device is included in blocks with the second of optical signal deflection dimension perpendicular
The deflection conversion equipment that face is blocked；Third deflection conversion sub-device is included in the with optical signal deflection dimension perpendicular
The deflection conversion equipment that three and the 4th truncation surface blocks；
In optical signal deflection dimension, the optical centre of the first deflection conversion sub-device is blocked with described first
The distance between face is h1；The distance between the optical centre of the second deflection conversion sub-device and second truncation surface are
h2；The third converts the distance between the optical centre of sub-device and described third truncation surface as h31, with the described 4th
The distance between truncation surface is h32；Wherein, h=h1+h2+h31+h32.
Optionally, the input/output unit includes at least the first input and output array and the second input and output array, institute
State multicenter deflection conversion equipment include at least corresponding with the first input and output array first deflection convert sub-device and with
The second input and output array corresponding second deflects conversion sub-device；
Optionally, it is described convert sub-device into cylindrical lens, set of cylindrical lenses, cylindrical concave mirror, concave mirror, lens with
And at least one of lens group.
Optionally, the input port and the output port include optical fiber and positioned at the fiber port pre-determined distances
Lens, for outputting and inputting light beam, the lens are used to limit beam divergence the optical fiber.
Optionally, the beam steering devices include polarization manipulation component and beam shaping component；
The polarization manipulation component includes polarization spectro sub-component and half-wave plate, and the polarization spectro sub-component is used for institute
It states light beam and is divided into orthogonal first light beam in polarization direction and the second light beam；The half-wave plate is used for second light beam
Polarization direction is changed into consistent with the polarization direction of first light beam；
The beam shaping component be used for by the light beam expanded in the signal chromatic dispersion dimension and collimation at
Reason.
Optionally, the focusing device includes at least one dioptric force direction the cylinder in the signal chromatic dispersion dimension
Lens.
Optionally, the arrangement for deflecting includes liquid crystal on silicon, space optical phase modulator, liquid crystal or MEMS.
Multi-wavelength selector switch provided in an embodiment of the present invention, by the way that input/output unit is set to include at least two groups of inputs
Output array, multicenter deflection conversion equipment include at least two groups of deflection conversion sub-devices, and every group of deflection conversion sub-device includes
Deflection conversion equipment comprising at least one truncation surface, the truncation surface deflect dimension perpendicular, two adjacent groups with the optical signal
The truncation surface of deflection conversion sub-device is disposed adjacent in optical signal deflection dimension, and every group of deflection conversion sub-device is used for input
The light beam output and input in output array turns in the optical signal beam that optical signal deflection dimension collimates and deflects arrangement for deflecting
It is changed to parallel optical axis to propagate and be coupled into output port, without changing parameter and the position of other components, in identical device
Encapsulation the inside increases the number of wavelength selection, realizes multiple wavelength-selective switches that can work independently, multi-wavelength selection
Construction of switch is simple, compared with traditional dual wavelength selecting switch, does not need to complicated polarization manipulation module, does not also require dispersion
Device all has high diffraction efficiency to two polarizations, reduces difficulty and cost, has preferable market application scenarios.
Description of the drawings
Fig. 1 is the structure diagram of Single wavelength selecting switch provided in an embodiment of the present invention；
Fig. 2 is structure diagram of the Single wavelength selecting switch optical signal in Fig. 1 in deflection dimension；
Fig. 3 is structure diagram of the Single wavelength selecting switch optical signal in Fig. 1 in dispersion dimension；
Fig. 4 is a kind of structure diagram of three wavelength-selective switches provided in an embodiment of the present invention；
Fig. 5 is the size relationship schematic diagram of three wavelength-selective switches shown in Fig. 4；
Fig. 6 is the structure diagram of dual wavelength selecting switch provided in an embodiment of the present invention；
Fig. 7 is the forming method schematic diagram of double centers deflection conversion equipment in Fig. 6；
Fig. 8 is the forming method schematic diagram of the three centers deflection conversion equipment in Fig. 4；
Fig. 9 is the structure diagram of another dual wavelength selecting switch provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Part related to the present invention rather than entire infrastructure are illustrated only in description, attached drawing.
Fig. 1 is the structure diagram of Single wavelength selecting switch provided in an embodiment of the present invention, and Fig. 2 is the Single wavelength in Fig. 1
Selecting switch deflects the structure diagram of dimension in optical signal, and Fig. 3 is that the Single wavelength selecting switch in Fig. 1 is tieed up in signal chromatic dispersion
The structure diagram of degree, below with reference to Fig. 1-3, structure and operation principle to Single wavelength selecting switch are simply introduced.Such as
Fig. 1, Single wavelength selecting switch include input/output unit 11 arranged as shown, beam steering devices 12, dispersion means 13, partially
It walks around changing device 14, focusing device 15 and arrangement for deflecting 16, wherein, input/output unit 11 includes input port 111 and defeated
Along optical signal deflection dimension arrangement, optical signal deflection dimension is optical signal for exit port 112, input port 111 and output port 112
It is switched to the dimension of output port 112, Y-direction as shown in Figure 1.111 outgoing wave of input port of input/output unit 11
Divide the beam signal of multiplexing, which is adjusted to the line polarisation of single polarization state by beam steering devices 12, and through color
In bulk to put 13 dispersion occurs in signal chromatic dispersion dimension, i.e., the optical signal dispersion of different wave length passes in the wdm light beam
It broadcasts, wherein signal chromatic dispersion dimension deflects dimension perpendicular, Z-direction as shown in Figure 1, through deflecting changing device 14 with optical signal
Afterwards, the optical signal of different wave length collimates (not shown) in optical signal deflection dimension, and then passes through focusing device 15, adjustment
The optical signal of the different wave length of critical dimensions is incident on 16 dispersion of arrangement for deflecting dimension in parallel to each other in signal chromatic dispersion dimension
The different location of degree simultaneously reflects, and arrangement for deflecting 16 sends out the light for setting wavelength in optical signal deflection dimension in corresponding position
Raw deflection, when then the light of the setting wavelength is by deflecting conversion equipment 14, the direction of propagation, which is changed into, to be parallel to initial wavelength-division and answers
With the optical axis direction of light beam, so as to which the targeted output port of optical coupling into the input/output unit of the setting wavelength realizes the wavelength
Selection output.Wherein, the light of the different wave length in the wdm light beam can by arrangement for deflecting 16 by it with respective
Deflection angle is into horizontal deflection and exports.
Single wavelength selecting switch shown in FIG. 1 can be realized selects handoff functionality to the wavelength of single set optical signal, in unicast
On the basis of long selecting switch, in the prior art by setting an additional polarization manipulation module by two wavelength-selective switches
Input signal be transformed into orthogonal two polarization states, then two input optical signals are separated by polarization spectro crystal
And independent process, so as to realize dual wavelength selecting switch on the basis of a small amount of component is increased, this method does not require nothing more than color
In bulk put is provided simultaneously with high-diffraction efficiency to two polarization states, and complicated, cost is higher, and can only realize dual wavelength
Selecting switch can not realize Multi-wavelength selector switch.A kind of most direct Multi-wavelength selector switch method is, by two or more
A Single wavelength selecting switch gathers into folds up and down, and two such or multiple former input/output units are stacked up and down with certain spacing
Come, two or more original deflection conversion equipments gather into folds, and use two or more arrangements for deflecting up and down, all other
Component height doubles, and just realizes dual wavelength selecting switch or Multi-wavelength selector switch, and still, this way is not
Device bulk is saved, also completely without saving cost.
Based on this, the embodiment of the present invention provides a kind of Multi-wavelength selector switch, including input/output unit, light beam adjustment dress
It puts, dispersion means, multicenter deflection conversion equipment, focusing device and arrangement for deflecting；Input/output unit is used for input and output
Light beam；Input/output unit includes at least two groups of input and output arrays, and at least two groups of input and output arrays are deflected along optical signal and tieed up
Degree stacks setting；Every group of input and output array includes at least one input port and at least one output port, input port and
Output port is arranged along optical signal deflection dimension；Optical signal deflection dimension is switched to output port for optical signals input port
Dimension；The light beam that beam steering devices pass through input port incidence for adjustment；Dispersion means are used for different wave length in light beam
Light separated in signal chromatic dispersion dimension, wherein signal chromatic dispersion dimension and optical signal deflect dimension perpendicular；Multicenter deflects
Conversion equipment is used to collimate light beam in optical signal deflection dimension；Multicenter deflection conversion equipment includes at least two groups of deflections and turns
Sub-device is changed, every group of deflection conversion sub-device includes the deflection conversion equipment blocked comprising at least one truncation surface, the truncation surface
Dimension perpendicular is deflected with optical signal, the truncation surface of two adjacent groups deflection conversion sub-device is adjacent in optical signal deflection dimension to be set
It puts；The quantity of deflection conversion sub-device is identical with the quantity of input and output array and corresponds；Focusing device is used to pass through
The light of different wave length separated in signal chromatic dispersion dimension is focused on arrangement for deflecting after dispersion means；Arrangement for deflecting is used for will
The light that wavelength is set in light beam is deflected in optical signal deflection dimension with predetermined angle.The technical solution of the embodiment of the present invention, nothing
Parameter and the position of other components need to be changed, increases the number of wavelength-selective switches inside identical device encapsulation, realizes
Multiple wavelet length selecting switch that can work independently, wherein, unicast in the prior art can be achieved in each wavelet length selecting switch
The institute of long selecting switch is functional.The Multi-wavelength selector switch is simple in structure, compared with traditional dual wavelength selecting switch, is not required to
Complicated polarization manipulation module is wanted, dispersion means is not required all to have high diffraction efficiency to two polarizations yet, reduce difficulty
And cost, while space is saved, have preferable market application value.
It is the core concept of the present invention above, below in conjunction with the attached drawing in the embodiment of the present invention, to the embodiment of the present invention
In technical solution be clearly and completely described.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Under the premise of making creative work, all other embodiments obtained, such as each Optical devices and context are set
Reasonability changes, and realizes the embodiment of the optical function identical with the present invention, belongs to the scope of protection of the invention.
Fig. 4 is a kind of structure diagram of Multi-wavelength selector switch provided in an embodiment of the present invention, and Fig. 4 is selected with three wavelength
It is illustrated for switch.With reference to figure 4, which includes input/output unit 41, beam steering devices 42, color
In bulk to put 43, three centers deflect conversion equipment 44, focusing device 45 and arrangement for deflecting 46；Wherein, input/output unit 41 is used
In input/output beam；Including three groups of input and output arrays 411,413,412, every group of input and output array corresponds to a wavelet length
Selecting switch, three groups of input and output arrays 411,413,412 stack setting, Y as shown in Figure 4 along optical signal deflection dimension
Direction；Every group of input and output array, such as 411, including at least one input port 4111 and at least one output port 4112,
Input port 4111 and output port 4112 are arranged along optical signal deflection dimension；Optical signal deflection dimension is optical signal from input terminal
Mouth 4111 is switched to the dimension of output port 4112；Beam steering devices 42 are for adjustment through the incident light of input port 4111
Beam；Dispersion means 43 separate the light of different wave length in light beam in signal chromatic dispersion dimension；Three centers deflect conversion equipment 44
For light beam to be collimated in optical signal deflection dimension；Multicenter deflection conversion equipment 44 includes three groups of deflections and converts sub-device
441st, 443,442, every group of deflection conversion sub-device includes the deflection conversion equipment blocked comprising at least one truncation surface, this is blocked
Face deflects dimension perpendicular with optical signal, and the truncation surface of two adjacent groups deflection conversion sub-device is adjacent in optical signal deflection dimension to be set
It puts；Deflection conversion sub-device 441,443,442 is corresponded with input and output array 411,413,412；Focusing device 45 is used for
The light of different wave length separated in signal chromatic dispersion dimension after dispersion means 43 is focused on arrangement for deflecting 46；Deflection
Device 46 is used in optical signal deflection dimension deflect the light for setting wavelength in light beam with predetermined angle.
Wherein, deflection conversion sub-device is generated after carrying out truncation to conventional deflection conversion equipment, this is blocked
Processing is that the optical centre spacing that sub-device is converted in three deflections furthers so that the signal processing window of arrangement for deflecting 46 can be same
The input optical signal of tri- wavelength-selective switches of Shi Rongna.With reference to figure 4, in optical signal deflection dimension, adjacent three groups of deflection turns
The truncation surface for changing sub-device is disposed adjacent and refers to that the truncation surface of adjacent deflection conversion sub-device is upper in optical signal deflection dimension
It puts opposite and is close to set so that reasonable layout of the optical centre of three groups of deflection conversion sub-devices in deflection dimension, in this way,
The light beam inputted from different wavelet length selecting switch is neither overlapped also on the signal processing window of arrangement for deflecting without departing from window
Range.
As shown in figure 4, input/output unit 41 includes three groups of input and output arrays 411,413,412, correspondingly, three centers
It deflects conversion equipment 44 and includes three groups of deflections conversion sub-devices 441,443,442, the quantity of deflection conversion sub-device is defeated with inputting
The quantity for going out array is identical and correspond, and ensures that three wavelength-selective switches provided in an embodiment of the present invention can be realized simultaneously
Three sets of independent wavelength-selective switches；In optical signal deflection dimension, sub-device truncation is converted into deflection, it then will be different
Deflection conversion sub-device truncation surface be affixed setting so that three deflection conversion sub-devices set it is compact, ensure from each height
When the wdm light beam of the input and output array incidence of wavelength-selective switches reaches arrangement for deflecting 46 dimension is deflected in optical signal
On will not both be overlapped will not exceed arrangement for deflecting 46 signal processing window ranges.To sum up, the embodiment of the present invention is in Single wavelength
On the basis of selecting switch, conversion equipment is deflected by the way that the deflection conversion equipment of Single wavelength selecting switch is transformed into three centers,
Parameter and the position of other function modules need not be changed, it is real under identical package dimension by sharing other function modules
Show three sets of independent wavelength-selective switches, it is simple in structure, it is of low cost, have preferable market application scenarios.
Fig. 5 is the size relationship schematic diagram of three wavelength-selective switches shown in Fig. 4, and with reference to figure 5, dimension is deflected in optical signal
On, Y-direction as shown in Figure 5, three centers are deflected between the optical centre 400 of deflection conversion sub-device at 44 both ends of conversion equipment
Distance for h, arrangement for deflecting 46 includes signal processing window 460, the prolonging in optical signal deflection dimension of signal processing window 460
Elongation is D, and spot size of the light beam 100 in optical signal deflection dimension is d at signal processing window 460, in order to ensure
The two light beams 100 in two edges position can be incident on the signal processing window of arrangement for deflecting 46 in optical signal deflection dimension
In 460, the setting positioned at the deflection conversion sub-device at three centers, 44 both ends of deflection conversion equipment need to meet h+2*d/2≤D.Except this
Except, in order to ensure not interfere with each other between inputs light beam, non-overlapping copies need to meet h >=(n-1) d, wherein, n turns for the deflection
Change the quantity of sub-device.It should be noted that the embodiment of the present invention is to pass through the light of different input and output arrays 411,413,412
Beam illustrates for having the hot spot of same size in optical signal deflection dimension.
Fig. 6 is the structure diagram of dual wavelength selecting switch provided in an embodiment of the present invention, and Fig. 6 is with dual wavelength selecting switch
For illustrate；Fig. 7 is the forming method schematic diagram of double centers deflection conversion equipment in Fig. 6, with reference to figure 6-7, optionally,
Double center deflection conversion equipments include the first deflection and convert the deflection conversion sub-device 642 of sub-device 641 and second, and the first deflection turns
It changes the deflection of sub-device 641 and second conversion sub-device 642 and stacks setting in optical signal deflection dimension；First deflection conversion son dress
It puts 641 and is included in the deflection conversion equipment blocked with the first truncation surface of optical signal deflection dimension perpendicular；Second deflection conversion
Device 642 is included in the deflection conversion equipment blocked with the second truncation surface of optical signal deflection dimension perpendicular；It is deflected in optical signal
In dimension, first converts the distance between the optical centre of sub-device 641 and the first truncation surface as h1；Second deflection conversion
The distance between the optical centre of sub-device 642 and the second truncation surface are h2；Wherein, h=h1+h2, i.e., the first deflection conversion
Device 641 is blocked by the position of the former deflection conversion equipment optical centre h1 of distance, the second deflection conversion sub-device 642 by away from
Position from former deflection conversion equipment optical centre h2 is blocked, and the first deflection conversion sub-device 641 and second deflects
The truncation surface of conversion sub-device 642 is close to set, and forms bicentric deflection conversion equipment 64.
Fig. 8 is the forming method schematic diagram of the three centers deflection conversion equipment in Fig. 4, with reference to figure 4 and Fig. 8, optionally, three
Center deflection conversion equipment 44 includes the first deflection conversion deflection of sub-device 441, second conversion sub-device 442 and third deflection turns
Change sub-device 443, the first deflection conversion sub-device 441, the third deflection conversion deflection conversion sub-device of sub-device 443 and second
442 stack setting in optical signal deflection dimension；First deflection conversion sub-device 441 is included in deflects dimension perpendicular with optical signal
The deflection conversion equipment that blocks of the first truncation surface；Second deflection conversion sub-device 442 is included in hangs down with optical signal deflection dimension
The deflection conversion equipment that the second straight truncation surface blocks；Third deflection conversion sub-device 443 is included in be deflected with the optical signal
The deflection conversion equipment that the third truncation surface and the 4th truncation surface of dimension perpendicular block；The light of first deflection conversion sub-device 441
Center is h1 with distance of first truncation surface in optical signal deflection dimension；In the optics of second deflection conversion sub-device 442
The distance between the heart and the second truncation surface are h2；Third deflection conversion the optical centre of sub-device and third truncation surface between away from
From being h32 for the distance between h31, the 4th truncation surface；Wherein, h=h1+h2+h31+h32, likewise, three center deflects
Three deflection conversion sub-devices in conversion equipment are by the deflection conversion equipment of Single wavelength selecting switch away from optical centre one
The truncation surface of set a distance carries out truncation and is formed, and is stacked in optical signal deflection dimension.
Fig. 9 is the structure diagram of the more dual wavelength selecting switch of another kind provided in an embodiment of the present invention, first with reference to figure 9
First for convenience, the wdm light beam of input is known as zero order beam along the reflected light beam of 96 geometry of arrangement for deflecting, needed
It is noted that when a certain setting wavelength is deflected through arrangement for deflecting 96, the deflection in optical signal deflection dimension is
For zero order beam.In addition, for example, when input port 9111 and the deflection being correspondingly arranged convert sub-device
When 941 optical centre is in the sustained height of deflection dimension, it is clear that zero order beam will be returned by original optical path.Optionally, it inputs
Output device 91 includes at least the first input and output array 911 and the second input and output array 912, and double centers deflect conversion equipment
94 include at least first deflection conversion sub-device 941 corresponding with the first input and output array 911 and with the second input and output
The deflection conversion sub-device 942 of array 912 corresponding second；In optical signal deflection dimension, Y-direction as shown in Figure 9, first is defeated
Enter the input port 9111 in output array 911 and be located at the first deflection conversion 941 optical centre of sub-device close to the second deflection turn
Change the side of sub-device 942, most output ports 9112 is located at the first deflection and converts sub-device in the first input and output array
Side of 941 optical centres far from the second deflection conversion sub-device 942；In optical signal deflection dimension, the second input and output battle array
Input port 9121 in row 912 is located at the second deflection and converts 942 optical centre of sub-device close to the first deflection conversion sub-device
941 side, most output ports 9122 is located at the second deflection and converts in 942 optics of sub-device in the second input and output array
Side of the heart far from the first deflection conversion sub-device 941.Multi-wavelength selector switch provided in an embodiment of the present invention, can be by dividing
With the relative altitude of the optical centre of corresponding deflection conversion sub-device, adjustment is each for port position that Tiao Zheng be in input and output array
Position from zero order beam with respect to input/output port, to optimize the performance parameter of Multi-wavelength selector switch, i.e. input and output battle array
Height and position of the input port in deflection dimension in row can be arranged on corresponding deflection conversion sub-device optical centre
Upside or downside, since arrangement for deflecting is located at the focal plane of deflection conversion sub-device, position of the light beam on arrangement for deflecting is
Position of the extended line of corresponding deflection conversion sub-device optical centre on arrangement for deflecting.It is further noted that due to
Size of the signal processing window of arrangement for deflecting in deflection dimension is limited, and the light beam inputted from different input and output arrays is inclined
Can neither be overlapped on the signal processing window of rotary device can not exceed window ranges, so each deflection conversion sub-device optics
The extended line at center needs reasonably to be distributed in the position of signal processing window.
Optionally, with continued reference to Fig. 4, sub-device provided in an embodiment of the present invention of converting can be cylindrical lens, column
At least one of face lens group, cylindrical concave mirror, concave mirror, lens and lens group.
Optionally, input port 411 and output port 412 can be optical fiber and the lens positioned at fiber port setpoint distance
Combination, wherein, for optical fiber for outputting and inputting light beam, lens are used for collimated light beam.
Optionally, beam steering devices 42 can include polarization manipulation component and beam shaping component.Polarization manipulation component
Including polarization spectro sub-component and half-wave plate, polarization spectro sub-component is used to light beam being divided into polarization direction orthogonal first
Light beam and the second light beam, illustratively, the polarization spectro component can be birefringece crystals；Half-wave plate is for the second light beam of transformation
Polarization direction it is consistent with the polarization direction of the first light beam.Light beam can be by light beam in signal chromatic dispersion by beam shaping component
It is expanded in dimension and collimation is handled.
Optionally, it is saturating can to include cylinder of at least one dioptric force direction in signal chromatic dispersion dimension for focusing device 45
At least one of mirror, set of cylindrical lenses, lens group.Arrangement for deflecting 46 can be liquid crystal on silicon, space optical phase modulator, liquid
Brilliant or MEMS etc..
Note that it above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiment described here, can carry out for a person skilled in the art various apparent variations,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
It can include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of Multi-wavelength selector switch, which is characterized in that including：Input/output unit, beam steering devices, dispersion means,
Multicenter deflects conversion equipment, focusing device and arrangement for deflecting；
The input/output unit is used for input/output beam；The input/output unit includes at least two groups of input and output battle arrays
Row, at least two groups of input and output arrays stack setting along optical signal deflection dimension；Input and output array includes described in every group
At least one input port and at least one output port, the input port and the output port are deflected along the optical signal
Dimension arranges；The optical signal deflection dimension is switched to the dimension of output port for optical signals input port；
The beam steering devices pass through the light beam of input port incidence for adjusting；
The dispersion means are used to separate the light of different wave length in the light beam in signal chromatic dispersion dimension, wherein the light
Signal dispersion dimension deflects dimension perpendicular with the optical signal；
The multicenter deflection conversion equipment is used to collimate the light beam in optical signal deflection dimension；The multicenter
It deflects conversion equipment and includes at least two groups of deflection conversion sub-devices, deflection conversion sub-device is included comprising at least one described in every group
The deflection conversion equipment of truncation surface, the truncation surface deflect dimension perpendicular with the optical signal, conversion are deflected described in two adjacent groups
The truncation surface of sub-device is disposed adjacent in optical signal deflection dimension；It is described deflection conversion sub-device quantity with it is described defeated
The quantity for entering output array is identical；
The focusing device is used for the light of different wave length that will be separated in signal chromatic dispersion dimension after the dispersion means
It focuses on the arrangement for deflecting；
The arrangement for deflecting is used in the optical signal deflect the light for setting wavelength in the light beam in dimension with predetermined angle
Deflection.
2. Multi-wavelength selector switch according to claim 1, which is characterized in that in optical signal deflection dimension, position
The deflection in multicenter deflection conversion equipment both ends converts the optical center distance of sub-device as h；
The arrangement for deflecting includes signal processing window, size of the signal processing window in optical signal deflection dimension
For D；
Size of hot spot of the light beam on the signal processing window of the arrangement for deflecting in optical signal deflection dimension
For d；
Wherein, (n-1) d≤h≤D-d, n are the quantity that sub-device is converted in the deflection.
3. Multi-wavelength selector switch according to claim 2, which is characterized in that the multicenter deflection conversion equipment includes
First deflection conversion sub-device and the second deflection conversion sub-device, the first deflection conversion sub-device and second deflection turn
It changes sub-device and stacks setting in optical signal deflection dimension；
It is described first deflection conversion sub-device be included in the optical signal deflection dimension perpendicular the first truncation surface block it is inclined
It walks around changing device；The second deflection conversion sub-device is included in cuts with the second truncation surface of optical signal deflection dimension perpendicular
Disconnected deflection conversion equipment；
In optical signal deflection dimension, optical centre and first truncation surface of the first deflection conversion sub-device it
Between distance be h1；Described second converts the distance between the optical centre of sub-device and described second truncation surface as h2；
Wherein, h=h1+h2.
4. Multi-wavelength selector switch according to claim 2, which is characterized in that the multicenter deflection conversion equipment includes
First deflection conversion sub-device, the second deflection conversion sub-device and third deflection conversion sub-device, the first deflection conversion
Device, third deflection conversion sub-device and the second deflection conversion sub-device stack in optical signal deflection dimension
Setting；
It is described first deflection conversion sub-device be included in the optical signal deflection dimension perpendicular the first truncation surface block it is inclined
It walks around changing device；The second deflection conversion sub-device is included in cuts with the second truncation surface of optical signal deflection dimension perpendicular
Disconnected deflection conversion equipment；The third deflection conversion sub-device is included in cuts with the third of optical signal deflection dimension perpendicular
The deflection conversion equipment that section and the 4th truncation surface block；
In optical signal deflection dimension, optical centre and first truncation surface of the first deflection conversion sub-device it
Between distance be h1；Described second converts the distance between the optical centre of sub-device and described second truncation surface as h2；
The third converts the distance between the optical centre of sub-device and described third truncation surface as h31, with described 4th section
The distance between section is h32；Wherein, h=h1+h2+h31+h32.
5. Multi-wavelength selector switch according to claim 1, which is characterized in that the input/output unit includes at least the
One input and output array and the second input and output array, the multicenter deflection conversion equipment include at least and the first input and output
The corresponding first deflection conversion sub-device of array and the second deflection conversion son dress corresponding with the second input and output array
It puts.
6. Multi-wavelength selector switch according to claim 1, which is characterized in that described to convert sub-device saturating into cylinder
At least one of mirror, set of cylindrical lenses, cylindrical concave mirror, concave mirror, lens and lens group.
7. Multi-wavelength selector switch according to claim 1, which is characterized in that the input port and the output port
Lens including optical fiber and positioned at the fiber port setpoint distance, the optical fiber are used to output and input light beam, the lens
For limiting beam divergence.
8. Multi-wavelength selector switch according to claim 1, which is characterized in that the beam steering devices are included at polarization
Manage component and beam shaping component；
The polarization manipulation component includes polarization spectro sub-component and half-wave plate, and the polarization spectro sub-component is used for the light
Beam is divided into orthogonal first light beam in polarization direction and the second light beam；The half-wave plate is used for the polarization of second light beam
Direction is changed into consistent with the polarization direction of first light beam；
The beam shaping component is used to be expanded the light beam in the signal chromatic dispersion dimension and collimation is handled.
9. Multi-wavelength selector switch according to claim 1, which is characterized in that the focusing device includes at least one bend
Cylindrical lens of the luminous power direction in the signal chromatic dispersion dimension.
10. Multi-wavelength selector switch according to claim 1, which is characterized in that the arrangement for deflecting include liquid crystal on silicon,
Space optical phase modulator, liquid crystal or MEMS.
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| CN201810016439.1A CN108169858B (en) | 2018-01-08 | 2018-01-08 | Multi-wavelength selection switch |
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Address after: Floor 4, Building 6, Lianchuang Industrial Park, Loufeng Street, No. 45 Dongfu Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province, 215300 Patentee after: Bennett Optical Technology (Suzhou) Co.,Ltd. Address before: 215347 room 1510, No. 1699, Zuchongzhi South Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: BENNETT OPTICAL TECHNOLOGY (KUNSHAN) CO.,LTD. |