CN1257211A - Wide band single-mode fibre 4x4 matrix optical switch - Google Patents
Wide band single-mode fibre 4x4 matrix optical switch Download PDFInfo
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- CN1257211A CN1257211A CN 99125743 CN99125743A CN1257211A CN 1257211 A CN1257211 A CN 1257211A CN 99125743 CN99125743 CN 99125743 CN 99125743 A CN99125743 A CN 99125743A CN 1257211 A CN1257211 A CN 1257211A
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Abstract
The present invention relates to a wide-band monomode fiber 4X4 matrix optical switch. It is an optical switch matrix formed from array modules of optical path commtating layer, translation driving layer and driving path layer, etc. Said optical path commutating layer is formed from incident collimating optical path, emergence collimating optical path and reflection rectangular prism as main member, the translation driving layer adopts the slideway array module designed according to magnetic latching principle, and can reduce power consumption, and the driving path layer adopts integrated crossed-grid arranged relay array module, and can raise the electromagnetic efficiency. Said invented optical circuit structure features small insertion loss, simple control mode, wide working bandwidth, quick response speed and small size, can be expanded towards switch matrix with medium number of arrays.
Description
The present invention relates to a kind of fiber matrix photoswitch, relate in particular to a kind of mechanical type wide band single-mode fibre 4 x 4 matrix optical switch, the light path that is applied to fiber communication link system, diverse network is switched, and systems such as optical fiber measurement, monitoring belong to the optical fiber technology field.
The develop rapidly of optical fiber technology and Internet have greatly promoted optical fiber telecommunications system, network to Terabit (10 to the communication bandwidth requirements of high capacity or bit rate
12) transfer rate and Gigabit/Terabit (10
9/ 10
12) development of exchange capacity, photoswitch then is to realize that the communication exchange capacity reaches the core devices of Gigabit even Terabit, also is one step of necessity to future full optical transparency or translucent communication, simultaneously, photoswitch also is the core devices that optical interconnection, photometry are calculated.
Photoswitch, by implementation method can be divided into that optical fiber switches, micro-optic method and slab guide technology, by control device can be divided into machinery control (or machine/electricity is in conjunction with control), electric light is controlled two big classifications.In the prior art, to the existing research of photoswitch of the micro-optic technology class of machinery control.The photoswitch driver that the clear 56-150707 of Japanese Patent Laid communique (1981) is put down in writing, by unclasp cable push away/pulling force is delivered to the optical emitting mirror, it is moved up and down form the switching of light path, the power that pushes away/draw is finished by motor or similar electromagnetic relay and so on device, is relatively independent of the light path platform.This photoswitch driver causes switching speed lower owing to unclasp the transmission damping of cable, poor repeatability, and also structural system is huge, is unfavorable for counting the switch matrix expansion to medium array.U.S. AT﹠amp; The micro-mechanical-optical switch of T Labs-Research free space of report in 1999 time communication conference Technical DigestOFC ' 99, it is a kind of IC integrated circuit technology of utilizing the planar silicon waveguide, design a miniatured hinge rotary optical transmitting mirror and finish the switching of light path, rotatablely moving of miniatured hinge is that driving by a kind of similar plane electromagnetic motor or coil is finished.Though this switch adopts IC technology, makes the drives structure miniaturization, its thermal effect highly significant, cause reliability can't obtain fine solution at present, in addition, owing to only utilize Manufacturing Process of Prec. Machinery to satisfy optics to the light precision, thereby, its present insertion loss very big (3.5dB).
The objective of the invention is at above-mentioned problems of the prior art, a kind of novel photoswitch is provided, make it to reduce and insert loss, improve switching speed and functional reliability, and can count the switch matrix expansion to medium array.
For realizing such purpose, the present invention has adopted a kind of modular construction that realizes by certain optics debugging method in technical scheme, and has implemented broadband solution and magnetic maintenance array scheme.Structurally, utilize magnetic latching relay, adopt intersection grid layout, integrated module design, reduce power consumption greatly, reduce size, be beneficial to medium array and count the switch matrix expansion.In optical design, adopt multicoating technology on right-angle prism, the bandwidth of photoswitch is strengthened, between 1.3 microns and 1.5 microns two windows, get through, reach 400 nanometers.In the optics debugging, adopt bidimensional benchmark optical flat, sextuple components and parts are pinpoint to optical tech, the loss of switch greatly reduced (less than 1.5dB), as improving the individual elements performance, can reach 0.8dB.
General structure of the present invention is divided into three layers, be respectively light path exchange layer, translation push layer and drive circuit layer from top to down, constitute 4 * 4 optical switch matrixes, light path exchange layer is a main member by incident, outgoing collimated light path and right-angle prism, it is light path exchcange core layer, collimated light path is made up of four single-mode fibers respectively, is coated with high-reflecting film on 45 ° of inclined-planes of reflection right-angle prism, and bandwidth is strengthened.The translation push layer adopts full glass positioning runner array module, and it is spacing to adopt chute limiting plate and high-precision rigid balls to realize, guarantees that translation departs from precision, to guarantee the repeatability of switching process.Drive circuit layer adopts magnetic to keep design, and the pull-type relay array module of also available common suction realizes.
In general, the useful space of optical alignment circuit distance is limited, can guarantee that the indiffusion in the designed distance scope of hot spot free area is too many, thereby the insertion loss of fiber-to-fiber can be controlled at zone of reasonableness.Technical scheme of the present invention is done optimal design and arrangement simultaneously in the constraint of functional module and optical space, and guarantee in incident optical collimated light path and the outgoing optical fiber collimated light path all optical fiber all strictness be adjusted at same optical flat.
For guaranteeing incident optical collimated light path and outgoing optical fiber collimated light path in the bidimensional surface level of strictness, the present invention realizes both strict conformances by same reference plane.First optical fiber in the incident optical collimated light path is fixed after being adjusted its level and left and right sides angle, second optical fiber then with first optical fiber as reference optical fiber, adjust its level and left and right sides angle equally, thereby realize the strict same plane of two optical fiber, the rest may be inferred.All optical fiber in the incident optical group are all by behind the strict adjustment plane, first optical fiber in the outgoing optical fiber collimated light path group with first optical fiber in the incident optical group as reference optical fiber, same its level and the left and right sides angle adjusted, thus realize that optical fiber all in outgoing optical fibre set and the incident optical group is all strict with same optical flat.
Below in conjunction with embodiment and accompanying drawing technical scheme of the present invention is described in further detail.
Fig. 1 is a general structure synoptic diagram of the present invention.
As shown in the figure, general structure of the present invention is divided into three layers, forms 4 * 4 optical switch matrixes by three layers of array modules such as light path exchange layer 1, translation push layer 2 and drive circuit layer 3 from top to down.Light path exchange layer 1 is a main member by incident collimated light path 6, outgoing collimated light path 5 and reflection right-angle prism 4, it is the core of light path exchange layer, incident collimated light path 6 is made up of four single-mode fibers 9, outgoing collimated light path 5 is made up of four single-mode fibers 7, and all optical fiber is all strict with same optical flat.Be coated with high-reflecting film on 45 ° of inclined-planes of reflection right-angle prism 4.Translation push layer 2 adopts full glass positioning runner array module, and chute upper limit plate 8 is arranged on it.
Fig. 2 is the structural representation of matrix unit among the present invention.
As shown in the figure, the present invention has adopted magnetic to keep design, and chute is made up of slide core 26, rigid balls 25 and gliding mass frame 24, and upper limit plate 8 is arranged above the gliding mass frame 24, has 10, two limiting plate strictnesses of lower limiting board parallel below.Reflection right-angle prism 4 is arranged on the chute, magnetic latching relay 12 links to each other with chute by push rod 13, between the permanent magnet 17 of push rod 13 bottoms and the pure iron 15 separation layer 16 is arranged, and upper limit 14 is arranged on the pure iron 15, be around with solenoid 19 at electromagnetic pure iron core 18, solenoid 19 connects drive electrode 27.
Matrix unit principle of work of the present invention is as follows: electric pulse produces NS or SN polarizing magnetic field by solenoid 19 fast, inhale mutually or the electromagnetic force of repelling each other with permanent magnet 17 interaction generations, thereby promoting push rod 13 and chute slide core 26 is shifted up and down, under the effect of light path upper limit plate 8 and lower limiting board 10, make right-angle prism 4 form the handoff functionality of light path up and down.Pure iron 15 and electromagnetic pure iron core 18 interact at polarizing magnetic field and the NS permanent magnet 17 that solenoid 19 produces, thereby the formation electromagnetism is inhaled mutually or is repelled each other, 16 of separation layers are not produce under the polarizing magnetic field situation at solenoid 19, make NS permanent magnet 17 and pure iron 15 and electromagnetic pure iron core 18 mutual balances.
Fig. 3 is a drive circuit layer relay array modular structure synoptic diagram of the present invention.
As shown in the figure, relay array module of the present invention adopts integrated intersection grid layout, and module is made up of divider wall 20, the outer divider wall 21 of electromagnetism in electromagnetic pure iron core array (comprising electromagnetic pure iron core 18 and solenoid 19), the electromagnetism.Be around with solenoid 19 at electromagnetic pure iron core 18, divider wall 20 in the electromagnetism is arranged between each solenoid 19, whole matrix has the outer divider wall 21 of electromagnetism outward.
This matrix form integrated design have electromagnetic efficiency height, electromagnetic crosstalk few, occupy characteristics such as size is little, except 4 * 4 matrixes, also be beneficial to very much and expand to 8 * 8 above major path ordered series of numbers battle arrays.
Fig. 4 is chute modular structure synoptic diagram among the present invention.
Among the figure, chute unit 22 embedded being installed in the chute framework 23.
Fig. 5 is the structural representation of chute unit among the present invention.
Among the figure, each chute unit is made up of slide core 26, rigid balls 25 and gliding mass frame 24.Be furnished with the high-precision rigid balls of four rows in the outside of slide core 26, guarantee that the translation of translation push layer departs from precision, be used for accurate limiting at have up and down upper limit plate 8 and 10, two parallel limiting plates of strictness of lower limiting board of gliding mass frame 24.
In this design, the occupied size of each chute is little, as 6 * 6 (millimeter * millimeters), thereby has effectively utilized optical space and optical path distance, is beneficial to expand to 8 * 8 battle arrays such as ordered series of numbers such as major path such as grade.
Characteristics such as the light channel structure that the present invention adopts has that the loss of insertion is little, control mode simple, response speed piece, size are little.The design of employing integrated module, effectively reduced the size of each driver element, each is driven relay is installed in the magnetic field units that same crossing net formats, improved electromagnetic efficiency on the one hand, reduce the frictional resistance of magnetic core, improve the response time, on the other hand, reduced crosstalking of each magnetic field units, can realize in the finite space that so medium arrays such as 4 * 4 or 8 * 8 count switch matrix; The magnetic that adopts keeps design, can reduce power consumption, improves the electromagnetic response time of switch; 45 ° of inclined-planes of reflection right-angle prism plate high-reflecting film, and width of the high reflectance zone can cover 1.3 microns and 1.5 microns two wave bands, and like this, but the utilized bandwidth of fiber switch matrix surpasses 400 nanometers, thereby has realized a kind of wideband switch.Although the broadband is to be cost to sacrifice a certain amount of loss, as 0.31B, the loss of switch on all communication wavelengths still can be less than 1.5 dB.
Below further specify effect of the present invention by specific embodiment data.
I/O optical fiber: G652 single-mode fiber
Service band: all band (1.3 μ m～1.5 μ m);
Insert loss: representative value 1dB, maximum near 1.5dB;
Response time: less than 10ms; Operating voltage: 5V or 12V; Power consumption: less than 1W;
Retroreflection: less than-40dB; Crosstalk: greater than 60dB; Repeatability: less than 0.2dB; Embodiment tests loss and sees the following form:
| Loss value dB | Exit end 1 | Exit end 2 | | |
| Incident end 1 | ????1.44 | ????1.27 | ????1.5 | ????1.61 |
| Incident end 2 | ????1.67 | ????1.44 | ????1.59 | ????1.46 |
| Incident end 3 | ????1.43 | ????1.28 | ????1.13 | ????1.55 |
| Incident end 4 | ????1.47 | ????1.1 | ????1.46 | ????1.07 |
The present invention and existing similar photoswitch relatively, advantage such as it is little obviously to have a loss of insertion, and fast and service band of response time is wide.
Claims (3)
1, a kind of wide band single-mode fibre 4 x 4 matrix optical switch, it is characterized in that by light path exchange layer 1, three layers of array module such as translation push layer 2 and drive circuit layer 3 are formed 4 * 4 optical switch matrixes, light path exchange layer 1 is by incident collimated light path 6, outgoing collimated light path 5 and reflection right-angle prism 4 are main member, incident collimated light path 6 and outgoing collimated light path 5 are made up of four single-mode fibers at same optical flat respectively, be coated with the high-reflecting film that bandwidth is strengthened on the inclined-plane of reflection right-angle prism 4, translation push layer 2 adopts the chute array module, and drive circuit layer 3 adopts the relay array module.
2, a kind of as the said wide band single-mode fibre 4 x 4 matrix optical switch of claim 1, it is characterized in that the chute array module adopts magnetic to keep design, chute unit 22 embedded being installed in the chute framework 23, the outside of slide core 26 is furnished with the high-precision rigid balls 25 of four rows, gliding mass frame 24 strict parallel upper limit plate 8 and lower limiting board 10 arranged up and down, magnetic latching relay 12 links to each other with chute by push rod 13, between the permanent magnet 17 of push rod 13 bottoms and the pure iron 15 separation layer 16 is arranged, upper limit 14 is arranged on the pure iron 15, be around with solenoid 19 at electromagnetic pure iron core 18.
3, a kind of as claim 1 or 2 said wide band single-mode fibre 4 x 4 matrix optical switch, it is characterized in that the relay array module adopts integrated intersection grid layout, be around with solenoid 19 at electromagnetic pure iron core 18, divider wall 20 in the electromagnetism is arranged between each solenoid 19, and whole matrix has the outer divider wall 21 of electromagnetism outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99125743 CN1114115C (en) | 1999-12-24 | 1999-12-24 | Wide band single-mode fibre 4x4 matrix optical switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99125743 CN1114115C (en) | 1999-12-24 | 1999-12-24 | Wide band single-mode fibre 4x4 matrix optical switch |
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| Publication Number | Publication Date |
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| CN1257211A true CN1257211A (en) | 2000-06-21 |
| CN1114115C CN1114115C (en) | 2003-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99125743 Expired - Fee Related CN1114115C (en) | 1999-12-24 | 1999-12-24 | Wide band single-mode fibre 4x4 matrix optical switch |
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| CN (1) | CN1114115C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100403080C (en) * | 2003-06-19 | 2008-07-16 | 保乐提斯有限公司 | An improved beam steering optical switch |
| CN103576245A (en) * | 2012-08-03 | 2014-02-12 | 苏州络湾电子科技有限公司 | Optical exchange platform |
| CN103926690A (en) * | 2014-03-22 | 2014-07-16 | 吉林大学 | Optical switch array and display screen with functions of scanning and interaction formed by the same |
| CN103926691A (en) * | 2014-03-22 | 2014-07-16 | 吉林大学 | Optical switch array and optical path device with the functions of projection and camera shooting |
| CN103984089A (en) * | 2014-06-13 | 2014-08-13 | 吉林大学 | Optical switch array and non-holographic real naked eye 3D display system formed from the same |
| CN109387903A (en) * | 2017-08-09 | 2019-02-26 | 中芯国际集成电路制造（天津）有限公司 | Light path coupling system and optical measuring system |
| CN115903146A (en) * | 2022-11-10 | 2023-04-04 | 西安近代化学研究所 | Optical switch based on digital driving principle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392455C (en) * | 2005-08-10 | 2008-06-04 | 上海未来宽带技术及应用工程技术研究中心有限公司 | Light path collimation method of MXN photoswitch |
| CN101866154B (en) * | 2010-05-11 | 2012-02-29 | 浙江大学 | I/O port mapping method based on simplifying relay matrix |
-
1999
- 1999-12-24 CN CN 99125743 patent/CN1114115C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100403080C (en) * | 2003-06-19 | 2008-07-16 | 保乐提斯有限公司 | An improved beam steering optical switch |
| CN103576245A (en) * | 2012-08-03 | 2014-02-12 | 苏州络湾电子科技有限公司 | Optical exchange platform |
| CN103576245B (en) * | 2012-08-03 | 2016-10-05 | 苏州络湾电子科技有限公司 | Optical exchange platform |
| CN103926690A (en) * | 2014-03-22 | 2014-07-16 | 吉林大学 | Optical switch array and display screen with functions of scanning and interaction formed by the same |
| CN103926691A (en) * | 2014-03-22 | 2014-07-16 | 吉林大学 | Optical switch array and optical path device with the functions of projection and camera shooting |
| CN103984089A (en) * | 2014-06-13 | 2014-08-13 | 吉林大学 | Optical switch array and non-holographic real naked eye 3D display system formed from the same |
| CN103984089B (en) * | 2014-06-13 | 2016-04-06 | 吉林大学 | The true bore hole 3D display system of non-holographic of a kind of array of photoswitch and formation thereof |
| CN109387903A (en) * | 2017-08-09 | 2019-02-26 | 中芯国际集成电路制造（天津）有限公司 | Light path coupling system and optical measuring system |
| CN109387903B (en) * | 2017-08-09 | 2020-11-27 | 中芯国际集成电路制造（天津）有限公司 | Optical path coupling system and optical measurement system |
| CN115903146A (en) * | 2022-11-10 | 2023-04-04 | 西安近代化学研究所 | Optical switch based on digital driving principle |
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|---|---|
| CN1114115C (en) | 2003-07-09 |
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