CN1549607A - MXN light matrix multi-channel exchanging method - Google Patents
MXN light matrix multi-channel exchanging method Download PDFInfo
- Publication number
- CN1549607A CN1549607A CNA03117079XA CN03117079A CN1549607A CN 1549607 A CN1549607 A CN 1549607A CN A03117079X A CNA03117079X A CN A03117079XA CN 03117079 A CN03117079 A CN 03117079A CN 1549607 A CN1549607 A CN 1549607A
- Authority
- CN
- China
- Prior art keywords
- light
- optical switch
- optical
- exchange
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Optical Communication System (AREA)
Abstract
In the method, three light switches are connected to form base unit, 2XN group of base units are arranged at two sides of light exchanging region symmetrically; light connection point of output end of one side is cross-connected separately with light connection point of input end at another side through optical fibre; exchange of light channel with light path passing through or transfering is confirmed by controlling position of driving sheet in light switch, and 2n progressive increase is realized by connecting each output light node of base unit to light switch through serial connection.
Description
Technical field
The present invention relates to a kind of full light broadband communication network that is used for, the M in the all-optical network equipment * N light matrix multichannel switching method.
Background technology
Because full light switching technology is still at the experimental stage, so the Internet still adopts common telecommunications switch to connect the physical layer of network at present.Yet, from present the Internet, begun the extensive use multimedia, the network utmost point needs the situation of further dilatation, the light that existing telecommunications switch adopted-electrical-optical exchanged form, not catching up with the demand of network development far away, is restriction and " electronic bottleneck " that hinders the further expansion of network traffics.Although existing many disclosed patented technologies all attempt to solve this difficult problem, as 01116218.x, Japan Patent W000/14586 etc. once proposed or developed some optical switch switching methods, but still unresolved this difficult problem.At present, commonly used have two kinds of methods, and a kind of is optical beam splitting cross exchange method, and shortcoming is to cause the amplitude of light output to reduce a lot, another kind is that the method for taking parallel minute surface to be arranged in together is the method for typical MEMS integrated optical switch exchange, it is that a minute surface is represented a controlling organization, and correlation is strong between mirror and the mirror, and a switch is relevant with the state of other switches, light path is increased, it is big that optical loss becomes, optical texture complexity, the poor stability of optical system.Therefore even to this day, do not find as yet and a kind ofly can solve the optical switch switching method that light exchanges problems such as long-standing stability, repeatability and maintainability.
Summary of the invention
The objective of the invention is in order to overcome the shortcoming in the existing optical switch switching method, a kind of M * N light matrix multichannel switching method that is realized by the commutative optical switch of having applied for of patent 02157758.7 3 ends of using is provided.
Technical scheme of the present invention, M * N light matrix multichannel switching method characteristics are:
1, by two outputs of the commutative optical switch of first three end and failing of the commutative optical switch of latter two three end
Go into to hold to be connected and form the optical switch elementary cell that but cross exchange is arranged in the light matrix;
2, the optical switch elementary cell symmetric arrays of 2 * N group is in the both sides of light exchange area;
3, intersect with the input light contact of each optical switch elementary unit groups of light exchange area opposite side respectively by optical fiber at the output light contact of each optical switch elementary unit groups of light exchange area one side and be connected;
4, by the position of the commutative optical switch driving chip of control three ends, according to driving chip blocking position in switch, reflection or blocking-up are determined passing through of light path or are shifted, reach the mutual exchange of all optical channels;
5, each output optical node of optical switch elementary cell realizes 2 by the commutative optical switch of serial connection three ends
nIncrease progressively.
The present invention uses the MxN light matrix multichannel switching method of being made up of the commutative optical switch of having applied for of patent 02157758.7 3 ends, it not only makes the cost of manufacture of fiber-optic switch reduce, and the light exchange velocity is accelerated, switch performance is also more stable.If compare with typical MEMS integrated optical switch switching system, the work of more making its presence or power felt of its switch combination mode, superiority of effectiveness is also more obvious.Thereby can promote full optical exchanger fast development, realize full light broadband internet truly.
Description of drawings
Fig. 1 is transmission-type 4 * 4 a light exchange Pareto diagram;
Fig. 2 is reflective 4 * 4 light exchange Pareto diagram;
Fig. 3 is reflective 8 * 8 light exchange Pareto diagram.
Embodiment
But one group by three the commutative optical switch of 1 * 2 three end optical switch elementary cells of arranging as cross exchange in the light matrix independently, the commutative optical switch of 1 * 2 three end can be a transmission-type or reflective, by the collimater of one group of GRIN optical fiber coupling, but a driving chip and piezoelectricity (or magnetoelectricity) the material driver control assembly with microdisplacement of all optical communication function constitutes.Driving chip with total reflection function sets in advance in optical fiber GRIN coupling collimator surface position, and maintenance and optical axis are in vertical state.Act on when piezoelectricity (or magnetoelectricity) material is subjected to certain voltage (or magnetic field), driving chip will produce relative microdisplacement.This physical effect all exists in materials such as pottery, metal, crystal, semiconductor, nanometer powder.This patent is exactly this physics microdisplacement characteristic of utilizing in the above-mentioned material, and the path and the direction of light reflection are acquired change.But the present invention is exactly the optical switch elementary cell that connects into cross exchange arrangement in the light matrix with the commutative optical switch of three ends of this patent applied for.
By Fig. 1, shown in Figure 2 be that the exchange of transmission-type 4 * 4 light is arranged and reflective 4 * 4 light exchange arrangement, the optical switch elementary cell includes three independently commutative optical switches of 1 * 2 three end, can hand over input 2A, the 3A of two output 1B, 1C of optical switch (1) and the commutative optical switch of latter two three end (2), (3) to be connected by first three end and form; Increase progressively principle according to light path, the exchange of 2 * 2 road optical switches must have 2 * 2 groups three independently three end optical switch elementary cells.The exchange of 4 * 4 road optical switches must have 2 * 4 groups three independently three end optical switch elementary cells.The exchange of 8 * 8 road optical switches must have 2 * 8 groups three independently three end optical switch elementary cells.In like manner, M * N road optical switch exchange must have 2 * N to organize three independently three end optical switch elementary cells.All inputs, delivery channel that its reason is an optical switch must be the both sides of symmetric arrays in the light exchange area.Two embodiment of the present invention are that the exchange of 4 * 4 light is arranged, as by Fig. 1, shown in Figure 2, with 4 groups as the optical switch elementary cell symmetric arrays of above-mentioned composition both sides in the light exchange area, intersect with the input light contact of each optical switch elementary unit groups in left side, light exchange area respectively by optical fiber at the output light contact of each optical switch elementary unit groups on right side, light exchange area and to be connected, promptly the output light contact of each optical switch elementary unit groups on right side, light exchange area can only be connected with an input light contact of each optical switch elementary unit groups in left side, light exchange area.
The optical switch elementary cell is that the input by two outputs of its first commutative optical switch of three ends and the commutative optical switch of latter two three end is connected and forms, then the output of both sides, a back commutative optical switch of three ends just has 4 light contacts, if 4 outputs at latter two optical switch, be linked on the input of 8 optical switches thereafter, the output of then back 8 optical switches just becomes 16 light contacts again.In like manner, N group light shutter device elementary cell realizes that 2n increases progressively, can constitute big light matrix, as shown in Figure 3,4 three commutative optical switch optical switches of end of 4 output optical node serial connections of optical switch elementary cell, 8 output light contacts are then arranged, constitute the exchange of 8 * 8 light and arrange.
The input/output terminal of all three end light shutter devices in light matrix, finish connection according to above-mentioned rule, both can see, need the channel of light cross exchange switch, as long as the light path that makes by control reflection driving chip is passed through or shifted, promptly can reach the purpose that all optical channels exchange mutually.For example, when the reflection driving chip in the first order optical switch was worked, 1 channel just switched to 2 channels, and when the reflection driving chip in the optical switch of the second level was worked, 1 channel just switched to 3 channels.By that analogy, switch array can realize 2 * 2,4 * 4,8 * 8 or M * N road optical switch function of exchange fully.
In the light matrix exchange, be labeled as the 1st grade incident light with 1A usually, 1B and 1C represent the 1st grade reflected light path.2A represents the 2nd grade incident light, and 2B, 2C represent the 2nd grade reverberation.Equally, the light contact of other light shutter devices at different levels all by that analogy.By Fig. 1 and Fig. 2 as seen, 1B is connected with 2A, and light signal can switch to 2 channels from 1 channel.5B is connected with 7A, and light signal can switch to 3 channels from 1 channel.9B is connected with 12A, and light signal can switch to 4 channels from 1 channel.2B is connected with 3A, and light signal can switch to 3 channels from 2 channels.6B is connected with 8A, and light signal can switch from 2 channels.By that analogy, switch array can realize 2 * 2,4 * 4,8 * 8 ..., realize M * N light matrix multichannel exchange.
Claims (1)
1, plant M * N light matrix multichannel switching method, it is characterized in that,
A) be connected by the input of two outputs of the commutative optical switch of first three end and the commutative optical switch of latter two three end and form the optical switch elementary cell that but cross exchange is arranged in the light matrix;
B) the optical switch elementary cell symmetric arrays of 2 * N group is in the both sides of light exchange area;
C) intersect with the input light contact of each optical switch elementary unit groups of light exchange area opposite side respectively by optical fiber at the output light contact of each optical switch elementary unit groups of light exchange area one side and be connected;
D) by the position of the commutative optical switch driving chip of control three ends, according to driving chip blocking position in switch, reflection or blocking-up are determined passing through of light path or are shifted the mutual exchange that reaches all optical channels;
E) each output optical node of optical switch elementary cell realizes 2 by the commutative optical switch of serial connection three ends
nIncrease progressively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA03117079XA CN1549607A (en) | 2003-05-22 | 2003-05-22 | MXN light matrix multi-channel exchanging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA03117079XA CN1549607A (en) | 2003-05-22 | 2003-05-22 | MXN light matrix multi-channel exchanging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1549607A true CN1549607A (en) | 2004-11-24 |
Family
ID=34320589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA03117079XA Pending CN1549607A (en) | 2003-05-22 | 2003-05-22 | MXN light matrix multi-channel exchanging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1549607A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237294B (en) * | 2008-03-06 | 2012-04-25 | 上海交通大学 | Full-light controlled optical switch system |
| CN103823301A (en) * | 2012-11-16 | 2014-05-28 | 福州高意通讯有限公司 | N*M optical switch |
| CN105829946A (en) * | 2014-11-05 | 2016-08-03 | 华为技术有限公司 | Optical Switch For Micromotor System, And Exchanging Node |
| CN112083530A (en) * | 2020-09-27 | 2020-12-15 | 北京泛在云科技有限公司 | NxM blocked low-cost optical cross matrix |
-
2003
- 2003-05-22 CN CNA03117079XA patent/CN1549607A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237294B (en) * | 2008-03-06 | 2012-04-25 | 上海交通大学 | Full-light controlled optical switch system |
| CN103823301A (en) * | 2012-11-16 | 2014-05-28 | 福州高意通讯有限公司 | N*M optical switch |
| CN103823301B (en) * | 2012-11-16 | 2016-05-11 | 福州高意通讯有限公司 | A kind of N × M photoswitch |
| CN105829946A (en) * | 2014-11-05 | 2016-08-03 | 华为技术有限公司 | Optical Switch For Micromotor System, And Exchanging Node |
| US10061087B2 (en) | 2014-11-05 | 2018-08-28 | Huawei Technologies Co., Ltd. | Micro-electro-mechanical system optical switch and switching node |
| CN112083530A (en) * | 2020-09-27 | 2020-12-15 | 北京泛在云科技有限公司 | NxM blocked low-cost optical cross matrix |
| CN112083530B (en) * | 2020-09-27 | 2022-11-29 | 北京泛在云科技有限公司 | NxM blocked low-cost optical cross matrix |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10705295B2 (en) | Optical switch and optical switching system | |
| US7206476B2 (en) | Optical switch | |
| US5729642A (en) | N×N optical switch array using electro-optic and passive waveguide circuits on planar substrates | |
| CN104317006B (en) | A kind of wavelength-selective switches | |
| JP5913139B2 (en) | Waveguide type optical switch | |
| CN1164960C (en) | Dense tree optical switch network | |
| US20020076142A1 (en) | Optical switch and switching network | |
| CN1549607A (en) | MXN light matrix multi-channel exchanging method | |
| US6992748B2 (en) | Scalable and mass-manufacturable OXC using liquid crystal cells | |
| JP4727279B2 (en) | Matrix optical switch | |
| JPH0447804B2 (en) | ||
| CN1332242C (en) | Total fiber-optical magneto-optical shutter | |
| CN1257211A (en) | Wide band single-mode fibre 4x4 matrix optical switch | |
| KR20020028689A (en) | micro-mirror | |
| CN1222794C (en) | Non aligned wave guide for coupling light signal onto different chips | |
| WO2001043450A2 (en) | Switching device and method of fabricating the same | |
| JP2004077854A (en) | Light switch and method for using the same | |
| CN1314981C (en) | Optical switch with three-end exchange | |
| CN100395575C (en) | Photoswitch and photoswitch combination | |
| CN1395122A (en) | Multichannel extendible micromechanical optical switch array | |
| CN2557965Y (en) | Multi-light path light switch | |
| KR100417405B1 (en) | Piezoelectrically actuated optical switch | |
| CN116736449A (en) | Integrated waveguide MEMS optical switch using mechanical bistable beams and NxN array | |
| CN2507021Y (en) | Multiplex input/output beam mechanical optical switch | |
| Shen | 2D MEMS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |