CN106772822B - A kind of high-speed optical switch device - Google Patents
A kind of high-speed optical switch device Download PDFInfo
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- CN106772822B CN106772822B CN201710040432.9A CN201710040432A CN106772822B CN 106772822 B CN106772822 B CN 106772822B CN 201710040432 A CN201710040432 A CN 201710040432A CN 106772822 B CN106772822 B CN 106772822B
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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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Abstract
The present invention is suitable for optical network node Data Interchange Technology field, provides a kind of high-speed optical switch device, comprising: the road N input port, Digital Micromirror Device DMD, balzed grating, group and the road N output port；The road N input port is transferred to the predesignated output port of the road N output port per -1 grade of diffraction of input light beam all the way for generating N route parallel beams and being incident on corresponding N block particular sub-area on DMD with predetermined angle diffraction occurs after the balzed grating, group with 1 grade of corresponding diffraction ﹢；Particular sub-area is loaded with specific hologram, arrives preassigned output port with 1 grade of diffraction ﹢ that modulates every input light beam all the way；The glittering low-light grid group in predeterminated position, for make by -1 grade of light beam of diffraction be overlapped with the light beam on+1 grade of direction, and be coupled into output port.Technology provided by the invention can switch at high speed input signal to specified output port, and realize the promotion of photoswitch diffraction efficiency.
Description
Technical field
The invention belongs to optical network node Data Interchange Technology field more particularly to a kind of high-speed optical switch devices.
Background technique
Optical switched technology is as one of the core technology in all-optical network, the various differences in optical transfer network and data center
Exchange principle be widely used with the technology that exchanges of light is realized.The optical switched technology of different principle has different characteristics,
Suitable for different occasions.The core of optical switched technology is directly to cut signal in area of light at the node of optical network link
Different output ports is shifted to, intermediate not light to electricity, electricity arrive the process of light again.It is freely empty in existing optical switched technology
Between optical switched technology using entire optical channel as exchange granularity, it is excellent to have that high reliablity, exchange velocity are fast, exchange granularity is big etc.
Point can greatly improve switching node speed and capacity.In addition, free space optical exchange process utilizes not by the constraint of waveguide
Such as lens, the refraction of the holographic optical elements (HOE)s such as beam splitting, the equivalent light that should be able to change of diffraction are in the transmission direction in space, so that light beam
Diameter is sought to another array plane from an array plane, to realize the light exchange between different port.But due to common
Signal beams do not have ga s safety degree, so existing optical switched technology must be located each road light is spatially separated
Reason, this also just strictly limits the promotion of the expansibility of light switching port and light switching port space density, this also with future
Light exchange requires to support that more light switching ports, integrated more high density port are conflicting.
Based on optical switched technology, the research to photoswitch shows as different device materials, working principle etc. are mined
There is commercial photoswitch to show the situation of development in pluralism.It is relatively common such as MEMs mechanical optical switch, MEMs is usually to exist
The Miniature movable reflecting mirror manufactured in silicon substrate, size are mentioned in several hundred microns to several millimeters of ranges, a single silicon chip
For a large amount of reflecting mirror, and it can be produced and be packaged into array.And the technology for starting these reflecting mirrors frequently includes electromagnetism, electrostatic
Or the methods of piezoelectricity, these reflecting mirrors can be from a location deflections to another position, to realize the side to incident beam
To control, but carried out in biggish range of deflection control be it is more difficult, now then be mostly used simulation numerical control reflecting mirror,
Universal reflecting mirror or three-dimensional reflection mirror, per the switching effect for being able to achieve clog-free 1 × n all the way, although MEMs switching technique has
The potential large-scale photoswitch solution of building, but the speed of its exchange is confined to always a few tens of milliseconds magnitude, and it is right
This demand for requiring high-speed light to exchange of data center is much inadequate.Equally, the current switching on and shutting down in large data center
System, depends primarily on liquid crystal on silicon light modulation, and main device is based on liquid crystal on silicon as dynamic diffractive element, according to itself
Liquid crystal cell gap, realize switching function using polarization effect.The applied voltage in appropriately designed liquid crystal cell can make to lead to
It crosses the light polarization of liquid crystal cell and generates rotation or do not rotate, it can shape then in conjunction with the passive polarization beam apparatus of utilization and bundling device
At the unrelated photoswitch of polarization, but its switch time is still in several milliseconds of magnitudes.Light loss caused by these reconstitution times is past
Toward needing to reduce, this is also the primary demand of the following high speed optical arena switch.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of high-speed optical switch device, it is intended to by input signal high speed
Specified output port is switched to, and realizes the promotion of photoswitch diffraction efficiency.
The present invention provides a kind of high-speed optical switch devices, comprising: the road N input port, Digital Micromirror Device DMD, glittering
Grating group and the road N output port；Wherein, it is distributed on the DMD and parallel with the road N inputs light beam specific sub-district correspondingly
Domain；
The road N input port is used to be irradiated to predetermined angle generation N route parallel beams corresponding on the DMD
Particular sub-area is diffracted to 0, ± 1 level distribution per diffracted beam all the way so that diffraction occurs；Per input light beam all the way
- 1 grade of the diffraction preparatory finger for being transferred to the road N output port with+1 grade of corresponding diffraction after the balzed grating, group
Set output terminal mouth；
The particular sub-area is loaded with specific hologram, is arrived in advance with+1 grade of diffraction that modulates every input light beam all the way
Specified output port；
The balzed grating, is set to predeterminated position, for make by -1 grade of light beam of diffraction and the light on+1 grade of direction
Shu Chonghe, and it is coupled into output port.
Further, when switching the hologram in a certain particular sub-area, the defeated of the particular sub-area is exposed to
Output port corresponding with the hologram switched can be transmitted to by entering light beam.
Further, the balzed grating, group includes N × N piece balzed grating, and N × N piece balzed grating, is all set in
The matched beam direction position of -1 grade of diffracted beam, and+1 level beam direction is as channel direction；
It, should after diffraction when by input light beam is switched to any appointed output terminal mouth in the output port of the road N all the way
- 1 grade of sub-beams of road diffracted beam after 1 balzed grating, corresponding in N × N piece balzed grating, spatially with+1 grade
The upward light beam of power is overlapped, to make the energy supposition on channel direction, coincidence point is the coupling of the appointed output terminal mouth
Chalaza.
Further, the high-speed optical switch device further include: condenser lens, the condenser lens be placed in the DMD and
Between the balzed grating, for being focused to the diffracted beam exported from the DMD diffraction.
Further, the high-speed optical switch device further includes N number of parallel collimator, N number of parallel collimator
It is set to the position of the road N input port, collimated light beam, the road N can be become after the collimator per light beam all the way
Collimated light beam is parallel.
Further, the collimator aperture is 3mm.
Further, the high-speed optical switch device further includes laser, photo-coupler, and the photo-coupler passes through N item
Optical fiber is connect with N number of collimator；
The laser that the laser issues is divided into the road N signal after the photo-coupler, and the road N signal passes through light
Fibre is transferred to N number of collimator.
Compared with prior art, the present invention beneficial effect is: a kind of high-speed optical switch device provided by the invention will be put down
The laser beam of row transmission is irradiated to the particular sub-area that hologram is loaded on DMD, and laser beam passes through the hologram tune
After system ,+1 level diffracted beam is diffracted into appointed output terminal mouth as channel；And -1 level diffracted beam passes through balzed grating,
It is overlapped after group with the light beam on the corresponding 1 level direction diffraction ﹢, energy is superimposed, and is transferred to the road N output port
Predesignated output port；Technology provided by the invention, on the one hand, the DMD device used has the switching frequency of 22KHz,
Switching rate is hundred times of grades of existing available technology, and can substantially reduce the loss of data in switching limitation and handoff procedure；Separately
On the one hand, the diffraction efficiency of DMD handoff procedure is improved using balzed grating, group.
Detailed description of the invention
Fig. 1 is the schematic illustration of high-speed optical switch device provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of the high-speed optical switch device of 2 × 2 port provided in an embodiment of the present invention；
Fig. 3 (a) is the structural schematic diagram of the DMD in high-speed optical switch device provided in an embodiment of the present invention；
Fig. 3 (b) is that 0, ± 1 level distribution of the light beam of input all the way provided in an embodiment of the present invention after DMD diffraction is shown
It is intended to；
Fig. 3 (c) is expansion of the DMD provided in an embodiment of the present invention after expanding referring to schematic diagram；
Fig. 4 (a) is the surface micro-structure schematic diagram of balzed grating, group provided in an embodiment of the present invention；
Fig. 4 (b) is the signal that the light beam provided in an embodiment of the present invention exported by DMD diffraction passes through designed balzed grating,
Figure；
Fig. 5 (a) is the high-speed optical switch handoff procedure schematic diagram of 2 × 2 port provided in an embodiment of the present invention；
Fig. 5 (b) is that input 1- is defeated when the high-speed optical switch of 2 × 2 port provided in an embodiment of the present invention does not add balzed grating,
The schematic diagram presented on CCD when 1, input 1- output 2, input 2- output 2, output 1 input 2- out；
Fig. 5 (c) is input 1- output when the high-speed optical switch of 2 × 2 port provided in an embodiment of the present invention adds balzed grating,
1, the schematic diagram presented on CCD when input 1- output 2, input 2- output 2, output 1 input 2-；
When Fig. 5 (d) is that light shutter device provided in an embodiment of the present invention does not add balzed grating, and balzed grating, is added, defeated
Exit port plane with CCD received diffracted beam all the way pattern contrast schematic diagram.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Main realization thought of the invention are as follows: the collimation laser signal of the road N parallel transmission is irradiated to DMD by predetermined angle
On mirror surface panel, every light beam respectively corresponds the preset particular sub-area for being loaded with hologram on DMD, by hologram quilt
It is diffracted into the corresponding region of predesignated output port and realizes coupling；Simultaneously before coupling designed by the placement of end predeterminated position
Balzed grating, so that being spatially superimposed from ± 1 level that DMD diffraction exports, to realize the switching technology diffraction efficiency
It is promoted；Also, by switching the hologram in a certain particular sub-area, the input light for exposing to the particular sub-area can be made
Beam is transmitted to output port corresponding with the hologram switched.
Lower mask body introduces this high-speed optical switch device, and as shown in connection with fig. 1, the high-speed optical switch device includes: the road N
Input port (1 road input port is only drawn in figure as signal), Digital Micromirror Device DMD11, condenser lens 12, balzed grating,
Group 13 (1 balzed grating, is only drawn in figure as signal) and the road N output port (only draw 1 road output port and are used as and show in figure
Meaning)；Wherein, it is distributed on the DMD and parallel with the road N inputs the one-to-one particular sub-area of light beam.
The N route parallel beams inputted from the road N input port are irradiated to respectively corresponding on the DMD11 by predetermined angle
Particular sub-area after, diffraction occurs, 0, ± 1 level distribution is diffracted to per input light Shu Jun all the way, and along default optical path
Direction is transferred to the predesignated output in the output port of the road N after the condenser lens 12 and balzed grating, group 13
Port.
The particular sub-area is loaded with specific hologram, per input light beam all the way by corresponding described specific
After hologram modulates, preassigned output port is transferred to along default optical path direction.
Specifically, preassigned output port is modulated onto per+1 grade of diffraction of input light beam all the way, and per defeated all the way
- 1 grade of diffraction for entering light beam is transferred to the predesignated output with+1 grade of corresponding diffraction after the balzed grating, group
Port.
Specifically, the particular sub-area being distributed on the DMD11 is parallel with the road N to input light beam one-to-one correspondence, passes through switching
Hologram in the particular sub-area is able to achieve corresponding input light beam being switched to appointing for the road N output port
One appointed output terminal mouth.
The condenser lens is placed between the DMD and the balzed grating, and is located at the institute exported from the DMD diffraction
There is the geometric center position of diffracted beam, for being focused to the diffracted beam.
The balzed grating, 13 includes N × N sheet gration, and N × N piece balzed grating, is all set in-the 1 of diffracted beam
Level beam direction position, and+1 level beam direction is as channel direction；- 1 grade of sub-beams per diffracted beam all the way are passed through
It after corresponding 1 balzed grating, is spatially overlapped with the light beam on+1 level direction, to keep the energy on channel direction folded
Add, coincidence point is the Coupling point of output port, and output port connects optical fiber, so that light beam coupling is entered optical fiber.
It should be noted that being and the balzed grating, using the light beam on+1 level direction as channel direction shown in Fig. 1
Group 13 will be on -1 level beam combination to+1 level direction；In fact, can also be using the light beam on -1 level direction as letter
Road direction, and balzed grating, will be on+1 level beam combination to -1 level direction.
In addition, input light beam is irradiated on DMD11 by predetermined angle, the reason is that the characteristic to DMD11 itself is related.It is logical
Experimental verification is crossed, for DMD11 when with its diffraction effect, diffraction efficiency has the trend of rising with the increase of incident angle, so
And predetermined angle why is demarcated, it is because the form of diffracted beam will appear more serious when incident angle reaches the larger value
Distortion, herein, the predetermined angle that we are taken be take into account diffraction delivery efficiency and beam aberration degree is taken one relatively rationally
Minizone range.
It names a specific embodiment and introduces this high-speed optical switch device, Fig. 2 is the light path schematic diagram of this device, tool
Body includes: laser 21, the optical fiber 23,2 of photo-coupler 22,2 collimator 24, DMD25, condenser lens 26 and balzed grating, group
27；
Laser 21 by the photo-coupler 22 of one point of N be divided into the road N signal (road N signal here and be set as two-way,
Can be expanded according to actual needs, and the primary and advanced modulation signal of WDM etc. can be loaded according to actual needs), this two
Road signal connects the collimator 24 that aperture is 3mm after the optical fiber 23 of different length, generates the signal of two-way parallel transmission,
(photoswitch being actually used between data center's cabinet inputs, spacing integrated with output port to free space transmission 0.5m
Very little, here 0.5m be according to be suitble to experiment condition and set) after be radiated on the mirror surface panel of DMD25；Specifically, often
Light beam is corresponded with the particular sub-area for being loaded with computed hologram preset on DMD25 respectively all the way.By added by DMD25
The intensity modulated for carrying hologram, the level distribution that 0, ± 1 is diffracted to per incident beam all the way (are not shown 0, ± 1 in Fig. 2
Level distribution situation), and transmitted along default optical path direction, after the focusing of condenser lens 26, using the glittering of design processing
Grating group 27 is overlapped -1 grade of sub-beams spatially with the light beam on+1 level direction, to make the energy on channel direction
Superposition, coincidence point is the Coupling point of output port.A CCD camera can be disposed in the position of output port in Fig. 2, is used to
Observe the imaging contexts in output port face.
Further, to DMD25 mirror surface panel particular sub-area computed hologram corresponding to certain all the way incident beam
Switching, be able to achieve the incident beam for exposing to the particular sub-area is transmitted to it is corresponding with the computed hologram switched defeated
Exit port, i.e., certain incident beam is not that can only be output to an output port all the way, but it is corresponding by the road incident beam
The computed hologram of particular sub-area determines.
This handover mechanism of specific explanations below: the hologram loaded on DMD25 can pass through the design ginseng of setting hologram
Any regulation L of number withTwo parameters (L is the setting period of hologram,For the setting argument of hologram), that is to say, that a width
One group of hologram correspondence (L,).Four kinds of states input 1- output, the 1 (incidence inputted from input port 1 so in switching
Light beam is switched to output port 1), input 1- output 2, input 2- output 2, input 2- export 1 corresponding parameter be
(L1,), (L2,) (L3,) (L4,).DMD25 be exactly realized by the switching of hologram input 1- output 1,
The switching of 1- output 2, input 2- output 2, input 2- output 1 is inputted, this is the mechanism of switching.
Lower mask body introduces the DMD25 in high-speed optical switch device, and the DMD25 is based on micro-electromechanical system (MEMS)
What the theory and large scale integrated circuit technology of (Micro-Electro Mechanical System) designed, conceive pole
It is ingenious.DMD25 is once used for Classical correlation after being born, but since 1996, and the main application of DMD25 is Projection Display, referred to as
Digital projection shows DLP (Digital Projection Display), including forward projection machine and high definition television.Due to information
The overall process of processing is digitized, therefore is referred to as digital light processing.Such as Fig. 3 (a), the structural substrates of DMD25 are silicon, with big rule
The technology of vlsi die, produces RAM on silicon wafer, each memory has two addressing electrodes, two support columns, passes through hinge
Chain installs a minitype reflector, just like the structure of " seesaw ".Each micro-reflector can reflect light from both direction
It goes out, practical reflection direction is then depending on the state of bottom memory cell；When memory cell is in " ON " state, reflecting mirror meeting
Rotation is to+12 degree, if memory cell is in " OFF " state, reflecting mirror can be rotated to -12 degree, in addition, not adding address signal reflection
Mirror then corresponds to 0 degree, that is, there are three stable states for each unit of DMD25 :+12 degree, -12 degree, 0 degree.Cleverly design is plus collection
At the manufacturing process of circuit, it is ensured that DMD25 has reached display technology in the main indicators such as resolution ratio, brightness, contrast, grayscale
Highest level.Therefore DMD digital projection technique has the following characteristics that high-resolution, high brightness, contrast, grayscale and color are protected
True degree, high reliablity (response time is short).These important indexs are also that DMD25 is applied to establish base in terms of digital projection
Plinth.
Particularly, the upper computed hologram according to design load of DMD25, so that being irradiated to correspondence per a branch of incident light
Specified region, diffraction process such as 3 (b) are output to by default optical path direction in the form of diffraction after the upper specific subregion of DMD25
Shown, incident beam is diffracted to 0, ± 1 level distribution after specific subregion；Specifically, the meter that DMD25 is loaded
Calculating hologram is the binaryzation amplitude modulation program write according to Gerchberg-Saxton iterative algorithm, is loaded into DMD25
The folding and the modulation in arrangement realization period, angle that micro mirror array on DMD25 is controlled on memory, so that incident light is pressed
Preset direction diffraction output.What we mainly utilized here is 1 grade of light beam of diffraction output.
Particularly, the computed hologram subregion that DMD25 is loaded is the arrangement according to incident light and subregion, i.e., incident
Light beam and subregion correspond, so having splendid expansion, specific expand be can refer to shown in Fig. 3 (c).
Lower mask body introduces the balzed grating, group 27 in high-speed optical switch device, and Fig. 4 (a) is designed balzed grating, surface
Micro-structure, the balzed grating, are binary optical device, and the binary optical device is based on CAD and micron
Device made of grade processing technology, has the characteristics that light-weight, transreplication, low cost, and be able to achieve traditional optical and be difficult to complete
Small, array, the new functions such as integrated and any wavefront transformation.Specifically, balzed grating, provided in an embodiment of the present invention is eight
Step balzed grating, optical source wavelength λ=1550nm, the refractive index n=1.675 of rapidoprint used in balzed grating, group 27,
Practical blaze angle is θ, and embossment balzed grating, micro- for binary optical is exported based on the glittering of diffraction characteristic.It glares in embodiment
Grid group is divided into four sections, respectively section 1, section 2, section 3, section 4, each section is that a side length is 2mm
Square.By (n-1) d=λ, Tsin θ=λ, by the etching depth d1=d2=d3 that processed balzed grating, is calculated
=d4=2.3 μm, T1=T2=20.20 μm of screen periods, T3=T4=14.33 μm.It is that DMD diffraction is defeated as shown in Fig. 4 (b)
Light beam out pass through designed balzed grating, schematic diagram, specifically, -1 grade of sub-beams after the blaze of grating spatially with
+ 1 level is overlapped, and coincidence point is exactly the Coupling point of output end.
Fig. 5 (a) provides the schematic diagram of each handoff procedure state of 2 × 2 ports of embodiment for the present invention；It glares
Grid measure of merit is verified, and Fig. 5 (b) and Fig. 5 (c) are the pattern received in output port plane with CCD.Wherein Fig. 5 (b)
(1), (2), (3), (4) do not respectively indicate not plus input 1- output 1, input 1- output 2, input 2- output when balzed grating,
2, the pattern presented on CCD when input 2- output 1；(1), (2), (3), (4) of Fig. 5 (c) respectively indicate defeated when adding balzed grating,
The pattern presented on CCD when entering 1- output 1, input 1- output 2, input 2- output 2, output 1 input 2-.Circle in figure
The selected channel region of Qu Zewei switching.Particularly, Fig. 5 (b) also shows selected channel respectively with every beam incident light by DMD
The correspondence situation of+1 level after diffraction.And Fig. 5 (c) also shows -1 level after the balzed grating, group of corresponding design and+1
Grade is the case where output port plane is superimposed；Specifically, have the experimental results showed that, this balzed grating, group is real in design
Border is feasible, as shown in Fig. 5 (d), when not add balzed grating, group and add balzed grating, group, and the received diffraction lights all the way of CCD institute
The pattern of beam；Comparison is as can be seen that diffracted beam is after balzed grating, and there is a situation where be superimposed for energy at+1 grade of sub-beams
And can intuitively find out that energy significantly increases, by specific energy test, the design of balzed grating, group can be improved often
Energy about 2db is coupled under one switching state.
High-speed optical switch device provided by the invention, on the one hand, the DMD device used has the switching frequency of 22KHz, cuts
Throw-over rate is hundred times of grades of existing available technology, and can substantially reduce the loss of data in switching limitation and handoff procedure；It is another
Aspect improves the diffraction efficiency of DMD handoff procedure using designed micro- embossment balzed grating, to a certain extent, is data
Center and optical-fiber network can expand circuit-switched great demand to high speed and provide feasible program.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (6)
1. a kind of high-speed optical switch device characterized by comprising the road N input port, Digital Micromirror Device DMD, balzed grating,
Group and the road N output port；Wherein, it is distributed on the DMD and parallel with the road N inputs the one-to-one particular sub-area of light beam；
The road N input port is used to be irradiated to predetermined angle generation N route parallel beams corresponding specific on the DMD
Subregion is diffracted to 0, ± 1 level distribution per diffracted beam all the way, wherein -1 grade of diffraction is passed through institute so that diffraction occurs
State the predesignated output port for being transferred to the road N output port after balzed grating, group with+1 grade of corresponding diffraction；
The particular sub-area is loaded with specific hologram, and+1 grade of diffraction with modulation per input light beam all the way, which arrives, to be preassigned
Output port；
The balzed grating, is set to predeterminated position, for make by -1 grade of light beam of diffraction and the light beam weight on+1 grade of direction
It closes, and is coupled into output port；
When switching the hologram in a certain particular sub-area, the input light beam for exposing to the particular sub-area can be transmitted to
Output port corresponding with the hologram switched.
2. high-speed optical switch device as described in claim 1, which is characterized in that the balzed grating, group includes the glittering of N × N piece
Grating, N × N piece balzed grating, are all set in -1 grade of matched beam direction position of diffracted beam, and+1 grade of sub-beams
Direction is as channel direction；
When by input light beam is switched to any appointed output terminal mouth in the output port of the road N all the way, after diffraction, which spreads out
- 1 grade of sub-beams of irradiating light beam after 1 balzed grating, corresponding in N × N piece balzed grating, spatially with+1 grade of power
Upward light beam is overlapped, to make the energy supposition on channel direction, coincidence point is the Coupling point of the appointed output terminal mouth.
3. high-speed optical switch device as described in claim 1, which is characterized in that the high-speed optical switch device further include: poly-
Focus lens, the condenser lens are placed between the DMD and the balzed grating, for spreading out to from the DMD diffraction output
Irradiating light beam is focused.
4. high-speed optical switch device as described in claim 1, which is characterized in that the high-speed optical switch device further includes N number of
Parallel collimator, N number of parallel collimator are set to the position of the road N input port, pass through institute per light beam all the way
It can become collimated light beam after stating collimator, the N route parallel beams are parallel.
5. high-speed optical switch device as claimed in claim 4, which is characterized in that the collimator aperture is 3mm.
6. high-speed optical switch device as described in claim 4 or 5, which is characterized in that the high-speed optical switch device further includes
Laser, photo-coupler, the photo-coupler are connect by N optical fiber with N number of collimator；
The laser that the laser issues is divided into the road N signal after the photo-coupler, and the road N signal passes through optical fiber quilt
It is transferred to N number of collimator.
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| US20210232093A1 (en) * | 2020-01-27 | 2021-07-29 | Texas Instruments Incorporated | Projector with phase hologram modulator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000244933A (en) * | 1999-02-24 | 2000-09-08 | Dainippon Printing Co Ltd | Image pickup device |
| CN1280677A (en) * | 1997-10-24 | 2001-01-17 | 皮雷利·卡维系统有限公司 | Fabrication of optical waveguide gratings |
| CN101290215A (en) * | 2008-06-10 | 2008-10-22 | 浙江大学 | Micro-displacement sensor based on PGC demodulated interferential scanning |
| CN101303291A (en) * | 2008-06-05 | 2008-11-12 | 苏州大学 | Multi-channel multi-target ultra-optical spectrum imaging method and system based on digital micro lens device |
| CN101403608A (en) * | 2008-11-13 | 2009-04-08 | 哈尔滨工程大学 | Accurate measurement apparatus and method for workpiece surface appearance |
| CN203311035U (en) * | 2013-06-20 | 2013-11-27 | 中央民族大学 | M*N port reconfigurable optical add drop multiplexer based on liquid crystal on silicon |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6943950B2 (en) * | 2000-08-07 | 2005-09-13 | Texas Instruments Incorporated | Two-dimensional blazed MEMS grating |
| US20060262304A1 (en) * | 2005-04-22 | 2006-11-23 | Keith Carron | Apparatus for automated real-time material identification |
-
2017
- 2017-01-20 CN CN201710040432.9A patent/CN106772822B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280677A (en) * | 1997-10-24 | 2001-01-17 | 皮雷利·卡维系统有限公司 | Fabrication of optical waveguide gratings |
| JP2000244933A (en) * | 1999-02-24 | 2000-09-08 | Dainippon Printing Co Ltd | Image pickup device |
| CN101303291A (en) * | 2008-06-05 | 2008-11-12 | 苏州大学 | Multi-channel multi-target ultra-optical spectrum imaging method and system based on digital micro lens device |
| CN101290215A (en) * | 2008-06-10 | 2008-10-22 | 浙江大学 | Micro-displacement sensor based on PGC demodulated interferential scanning |
| CN101403608A (en) * | 2008-11-13 | 2009-04-08 | 哈尔滨工程大学 | Accurate measurement apparatus and method for workpiece surface appearance |
| CN203311035U (en) * | 2013-06-20 | 2013-11-27 | 中央民族大学 | M*N port reconfigurable optical add drop multiplexer based on liquid crystal on silicon |
Non-Patent Citations (4)
| Title |
|---|
| "7╳7 DMD-based diffractive fiber switch at 1550nm";A.Miles 等;《OpticsCommunications》;20140808;第334卷;第41-45页 |
| "MEMS optical switches and interconnects";Cheng-hua Tsai 等;《Displays》;20141125;第37卷;第33–40页 |
| "Micro-Grating Array-Enabled Power Efficiency Improvement for a DMD-Based Optical Switch";Chuanwu Yang 等;《IEEE PHOTONICS TECHNOLOGY LETTERS》;20180115;第30卷(第2期);第145-148页 |
| "Two Dimensional Digital Micromirror Device-based 2 x 2 Fiber-optic Switch Array";Nabeel A. Riza 等;《IEEE Lasers & Electro-optics Society Meeting》;19981204;第413-414页 |
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