CN1220892C - Optical fibre bus system - Google Patents

Optical fibre bus system Download PDF

Info

Publication number
CN1220892C
CN1220892C CN 02134571 CN02134571A CN1220892C CN 1220892 C CN1220892 C CN 1220892C CN 02134571 CN02134571 CN 02134571 CN 02134571 A CN02134571 A CN 02134571A CN 1220892 C CN1220892 C CN 1220892C
Authority
CN
China
Prior art keywords
interface
optical fiber
pedestal
bus
advanced optical
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.)
Expired - Fee Related
Application number
CN 02134571
Other languages
Chinese (zh)
Other versions
CN1477415A (en
Inventor
曹学军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 02134571 priority Critical patent/CN1220892C/en
Priority to PCT/CN2003/000071 priority patent/WO2004017214A1/en
Priority to AU2003285628A priority patent/AU2003285628A1/en
Publication of CN1477415A publication Critical patent/CN1477415A/en
Application granted granted Critical
Publication of CN1220892C publication Critical patent/CN1220892C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3873Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3885Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/28Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/32Optical coupling means having lens focusing means positioned between opposed fibre ends
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/42Coupling light guides with opto-electronic elements
    • G02B6/4292Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/42Coupling light guides with opto-electronic elements
    • G02B6/43Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Multi Processors (AREA)

Abstract

The present invention relates to a physical layer with high performance of an optical fiber array bus. The bus system is applied to data processing systems with high performance, and multiple independent data components can be connected by the present invention. The present invention can complete over gigabytes of point-to-point transmission, and has the function of multipoint-to-multipoint transmission at the same time. The bus system provides control and transmission signalling which can be self-defined, broadcast passages, simple standard rapid photoelectric interfaces, structures which can be infinitely expanded, etc. The present invention is the basis of complicated parallel computer systems at high operating speed.

Description

Advanced fiber buss system
Technical field under the present invention
The present invention relates to a kind of physical arrangement of fiber buss, belong to computing machine, communication field.
Prior art before the present invention
The bus architecture that is applied to computer system at present all uses lead as signal transmission medium, and signal delivers by electric field or electric current.More common bus system has ISA, PCI, AGP, SPARC etc., and their bus frequency is all below 500 megahertzes, and that we know that the internal frequency of present universal cpu has reached Gigahertz (GHz) is above and will approach 10GHz in the several years.The internal frequency of universal cpu is the several times of external bus frequency at present.
At present network and communication field have used the optical fiber transmission technique of multiple maturation, kilomega optic fiber Ethernet for example, and its transmission frequency can reach 1GHz.And on long-distance transmission technology, proven technique is 2.5G DWDM, and the optical fiber communication product of currently reported 40Gbits/S comes out.We know that Fibre Optical Communication Technology still is not applied to the computer bus field at present.
Use lead to be as the defective of the bus system existence of transmission medium: 1) high frequency characteristics is bad, when bus frequency reaches hundreds of megahertz, in the time of a large amount of modules will being repeatedly kicked into bus system, need expend large-area circuit board and connect up, and the signal cross-talk between line loss and line makes the signal transmission almost can't carry out.2) all present bus systems have all only been stipulated the physical criterion of logical criteria and interface section, and on bus standard was implemented, people will spend great amount of manpower and material resources, time in annual every month and constantly carry out new wires design, circuit board manufacturing.All the time all have a large amount of system boards to be eliminated, during computer upgrade, it also is the computer of PCI circuit that the computer main board that people often will lose (platform) PCI standard changes another piece (platform).So waste is surprising.
Goal of the invention
The present invention seeks to replace the metal line circuit board as the bus transfer medium, replace multilayer circuit board to connect electronic component with one or more basic advanced optical fiber bus units with fiber array.
The technical solution used in the present invention
A kind of with the signal transmission bus system of high speed fibre as the physical transfer carrier, it is characterized in that: by a plurality of advanced optical fiber bus interface, the pedestal of advanced optical fiber bus interface and base plate thereof also have various connecting pieces to constitute, wherein, the pedestal of several advanced fiber busss and a base plate primordial advanced optical fiber bus unit originally, pedestal and interface all contain the fiber array that can transmit signal mutually, utilize special data channel between each pedestal respectively, the shared data broadcast channel, the high speed fibre passage of sharing three types in control signal passage is interconnected, and the effect of basic advanced optical fiber bus unit is to link with the various web members that contain advanced optical fiber bus interface, signal transmission and exchange between each web member are provided, and a plurality of web members and basic advanced optical fiber bus unit combine and can constitute the how advanced optical fiber computer bus structure with complex topology structure.In this instructions, mentioned web member has 3 kinds, is respectively independent data parts, interface conversion bridge, exchange bridge.
The present invention a kind ofly replaces wiring circuit as the bus transfer medium with fiber array, replaces multilayer circuit boards to connect the physical bus design of electronic component with one or more basic advanced optical fiber bus units.Thereby it obtains the data transmission capabilities of super any in the past computer bus standard far away by using a large amount of optical fiber.With existing dense wave division multipurpose (DWDM) technology, an optical fiber also thinner than lead can have the transmittability of per second 40Gbits, and greatly having broken through existing is the transmission frequency upper limit of the bus system of transmission medium with the lead.The use fiber buss can solve the transmission bottleneck problem of present large scale integrated chip and outer lead bus, gives full play to the data processing performance of integrated circuit (IC) chip.
Bus system involved in the present invention only relates to the very high manufacturing process of consistance, technology and flow process, do not need constantly to carry out complicated, do not have conforming circuit board wiring design, a Computer-Assisted Design, Manufacture And Test, can remove these previous calculation machine industry fully and make required flow process, improve the production efficiency of computer manufacturing, can be the user simultaneously and save great amount of cost.
Because make and use up rather than electricity connects, the present invention can provide the function of charged plug, can also provide control, the command transmitting fully can self-defining enhanced performance.These performances are difficult to realize in the system that is electrically connected.The performance that bus architecture of the present invention also provides multi-multipoint while addressing, reads and writes data, this performance are to realize by a kind of special basic advanced optical fiber bus unit BU and how advanced optical fiber bus structure based on this.
Description of drawings
It is the simple computers system on basis by basic advanced optical fiber bus unit BU (Basic Advanced Optical Fiber Bus Unit) that Fig. 1 is one.1,2,3,4 is four advanced optical fiber bus interface pedestals of (Advanced Optical Fiber Bus Interface is called for short AOFBI), and 5,6,7 is the independent data parts IDU (Independent Data Unit) that is inserted into.The 8th, interface conversion bridge T-Bridge (Translate Bridge) or exchange bridge S-Bridge (Switch Bridge), the 11st, bridge draw fibre bundle, it leads to another physical interface of bridge.9 is double walled floor of being cut open by side, and what exposed its interlayer the inside 10 is interconnected fiber buss bundles between the AOFBI pedestal.
Fig. 2 is the BU that shows from another angle, the 12nd, and fiber array, the 13rd, electric jack zone, the 14th, one of them electric jack.
Fig. 3 is the advanced optical fiber bus interface pedestal of (Advanced Optical Fiber Bus Interface is called for short AOFBI), the 12nd, and fiber array, the 13rd, electric jack zone, the 14th, electric jack, the 15th, optic fibre hole.
Fig. 4 is advanced optical fiber bus interface (Advanced Optical Fiber Bus Interface is called for short AOFBI), and corresponding to the AOFBI pedestal, 12P is a fiber array, and 13P is the electric connector zone, and 14P is an electric connector, and 15P is an optic fibre hole.
Fig. 5 is a kind of shared data broadcast channel of advanced optical fiber bus unit BU inside substantially, the logic connection layout of shared control signal passage, 1BC represents the shared data channel B in the AOFBI pedestal 1, the interface of shared control signal channel C, 2BC represents the shared data channel B in the AOFBI pedestal 2, the interface of shared control signal channel C, 3BC represents the shared data channel B in the AOFBI pedestal 3, the interface of shared control signal channel C, and 4BC represents the shared data channel B in the AOFBI pedestal 4, the interface of shared control signal channel C.Each passage is made of some positions, and the same position on optic fibre hole of each correspondence, 4 interfaces is communicated with fully by two pairs of special coupled fibers, and the light signal that send arbitrary position can arrive other interfaces of 3 simultaneously.After the coupled fiber of all gathers, just become the bus of two couple (ash one is white) " X " shape among the figure.
Fig. 6 is a kind of special data channel logic connection layout of advanced optical fiber bus unit BU inside substantially, and each AOFBI pedestal all has 3 special data channel interfaces, and they are designated as D1 respectively, D2, D3 is preced with D1 with the number of 4 AOFBI pedestals, D2, the front of D3 has addressed just can for each the special data channel interface in the BU, has 6 special data channels in BU, they are 1D1-2D1,1D2-3D2,1D3-4D3,2D2-4D2,2D3-3D3,3D1-4D1.
Fig. 7 is the AOFBI pedestal and fiber array part profile partial enlarged drawing after AOFBI is connected, and in order to see clearly, the texture ratio vertical direction of horizontal direction has been amplified ten times nearly more.The 16th, the AOFBI base part, 16P is the AOFBI part, 17 is interfaces of two interface surfaces, 15 and 15P be optic fibre hole, 18 and 18P be the major diameter transparent cylinder, 19 and 19P be the convex lens of transparent cylinder, 20 and 20P be conical cavity, 21 and 21P be optical fiber buried via hole in the interface, 22 and 22P be the outer fibre (cladding) of optical fiber, 23 and 23P be the interior fibre core (core) of optical fiber.24-25 is a light path.
Fig. 8 is a kind of interface surface structural drawing that can be applicable to advanced optical fiber bus interface AOFBI and pedestal thereof, and for seeing clearly, the diameter of optic fibre hole 15 and 15P has been exaggerated.The 26th, the interface oil of transparent high index of refraction, the 27th, the light path of passing.
Fig. 9 is 6 kinds of common logical topology figure of how advanced fiber buss Multi-AOFB, BU is a basic advanced optical fiber bus unit that 4 pedestals are arranged, S-Bridge1 is that bridge is changed in two two oral sexes, S-Bridge2 is three exchange bridges, T1 is the multiple bus architecture that a twoport S of two BU bridge is formed, it can hold 6 IDU, T2 is the multiple bus architecture that 3 mouthfuls of S bridge of 3 BU is formed, it can hold 9 IDU, T3 is 3 BU and 3 ring-like multiple bus architectures that twoport S bridge is formed, it can hold 6 IDU, T4 is 4 BU and 3 multiple bus architectures that twoport S bridge is formed, it can hold 10 IDU, T5 is 5 BU and 4 star-like multiple bus architectures that twoport S bridge is formed, it can hold 12 IDU, and T6 is 4 BU and 4 ring-like multiple bus architectures that twoport S bridge is formed, and it can hold 8 IDU.
Embodiment
What present embodiment related to is the advanced optical fiber bus unit that only contains 4 pedestals.
The BU of advanced fiber buss AOFB among Fig. 1 provides 6 road special optic fibre data channel, one road broadcast data channel (shared data passage) and one tunnel control signal passage, can insert 4 IDU parts at most.With Fig. 1 is example, the personal computer of an advanced fiber buss of typical employing can be inserted the CPU5 of AOFBI interface on the pedestal 1 of BU, on pedestal 2, insert the mass memory module 6 of AOFBI interface, illustration shape processor GPU7 on pedestal 3, inserting T bridge (T-Bridge) 8 on pedestal 4 has just become a complete high-performance individual PC like this.
For industrial community, implement the figure place that AOFB at first will determine passage, possible scheme is: 64,128 or 256.Like this, 5 of the AOFBI among Fig. 1 passages (1 shared data passage, 1 shared control signal passage, 3 special data channels) will provide the connection of 320 optical fiber, 640 optical fiber, 1280 optical fiber respectively.Correspond to the fiber array on AOFBI and the pedestal, that is exactly 18 * 18,26 * 26,36 * 36.And the diameter of optic fibre hole 15,15P can be between 0.1 millimeter ~ 0.6 millimeter on AOFBI and the pedestal.The standard that industrial community also will be made through consultation comprises: the size of AOFBI and pedestal thereof; The physical dimension of fiber array 12,12P, pitch-row, passage physics-logic corresponding relation; Divide the standard of electric interfaces, power source voltage, power standard how much of electrical areas 13,13P; At last, the most important thing is, work out a control signaling protocol or control channel use agreement.
In the system of the chip that is electrically connected-multilayer board circuit, control is to realize by the fixedly connected and signal level of chip pin lead-in wire, the fixedly coupling of sequential, the control of for example addressing, reading and writing data, interrupt request or the like, we can call hard control to this control.In the system of fiber buss, there be not the fixedly connected of chip pin lead-in wire, so the notion of control is different fully with the chip that is electrically connected-multilayer board circuit with method.In the fiber buss system, control realizes by signaling and agreement, and the control concept of this and communication field is close, for example, can send one with control channel and represent the character of control Significance or byte to realize controlling, and we call soft control to this control.Compare with soft control, hard control has that response speed is fast, the treatment circuit characteristic of simple, though soft control response speed more slowly, required circuit and software are complicated, but soft control can realize more complicated control more flexibly and better compatibility.When soft chain of command right be chunk data when transmitting, its control rate and efficient are low unlike hard control.This instructions is not discussed these formulations that realizes signaling, agreement and the method for control, and the basis of realizing these functions only is provided.
Independent data parts IDU is produced by different device production merchants, at first, they tap into one by one electric light conversion element with the internal circuit signal lead of a rule, then light signal is led into the optic fibre hole of AOFBI one by one, perhaps will import the photoelectric conversion element array that connects internal circuit from the light signal one by one of AOFBI.At last, after AOFBI and photoelectricity/electro-optical conversioning device array and internal circuit encapsulated, an IDU had just created.
Advanced optical fiber bus system has very high requirement to the manufacturing accuracy of AOFBI and pedestal thereof.Electric connector and jack not only are used to provide be electrically connected, and they also have an important function, just provide the collimation guiding, the optic fibre hole alignment of guiding AOFBI and AOFBI pedestal.The internal structure of AOFBI and pedestal thereof as shown in Figure 7, the hundreds of thousands of optic fibre holes 15 of fiber array, the axis of optical fiber buried via hole 21 are parallel with the axis in all electric holes, the angle error that allows is less than 0.005 radian, equally, the hundreds of thousands of optic fibre hole 15P of fiber array, the axis of optical fiber buried via hole 21P are parallel with the axis of all electric connectors, and the angle error of permission is less than 0.005 radian.When on-deformable electric connector and electric jack engage fully, 21,15,15P, 21P could be to directly, simultaneously, the optical fiber of imbedding 22,23,22P, 23P is to directly, imbeds the major diameter transparent column 18 of band convex lens 19 of optic fibre hole 15 and the major diameter transparent column 18P of band convex lens 19P that imbeds optic fibre hole 15P to directly.Because the light signal of micron-sized fiber core 23,23P has been amplified in the major diameter transparent column 18 and 18P in the optic fibre hole, even occurred the transmission that small horizontal shift (0.1 millimeter~0.2 millimeter magnitude) also can not influence light signal between optic fibre hole 15 and the 15P, just cause some optical losss at most more.24~25th, the optical signal transmission under a kind of perfect condition, but because 21,15,15P, 21P be to straight reasons of error, angle between them is not strict to equal 0, but small angle is arranged, light signal can depart from the lens axis through after the lens focus like this, too far away in order not make signal focus depart from fibre core, the aperture position of fibre core can be placed on before the lens focus, do like this and can reduce still will pay the costs of a large amount of decay of signal because of light signal focusing departs from the probability that causes light signal to be lost.Fortunately, light signal is closely being propagated in advanced fiber buss system, can not surpass 30 centimetres in BU, so the optical signal transmission quality can be more not of poor quality than telecommunication.When AOFBI and pedestal joint thereof, the slit that requires interface 17 is all even enough narrow.
Because light has reflex through different interface the time, one has 4 reflectings surface in 24~25 light paths of Fig. 7, the existence of reflecting surface can increase the decay that sends signal, also increases the interference (each position of advanced optical fiber bus run interface all uses an optical fiber to send simultaneously and receive) of received signal simultaneously.What Fig. 8 showed for this reason is an optional interface surface organization plan that reduces by two reflectings surface.The interface surface of AOFBI base part 16 is one the recessed sphere of little radian.The interface surface part 16P of the advanced optical fiber bus interface AOFBI of standard is a sphere that has little radian to protrude.The direction that concave surface is placed is opposite with gravity direction, and concave bottom has been placed the oil 26 of transparent high index of refraction, like this when two interface surfaces align draw close after air along with drawing close by pasta of interface surface arranges, just be full of equally distributed oil between the interface 17 of two interfaces.The light beam 27 of interface surface optical fiber battle array just can arrive the another side of interface by oil immersion interface rather than air interface, has the reflection of two reflectings surface to be eliminated greatly in this process.
The fiber array of AOFBI among Fig. 1-Fig. 4 and AOFBI pedestal can be divided into 5 channel interfaces, and each passage all has 64 or 128 or 256.These 5 passages can called after shared data broadcast channel B, shares the control signal channel C, special data channel D1, D2, D3.In the BU of Fig. 1 and Fig. 2, it is unfilled corner that base plate 9 has an angle, and near the AOFBI pedestal this unfilled corner is numbered as 1, then by clockwise direction, and number consecutively AOFBI pedestal 2,3,4.Base plate 9 is a double-decker, and interlayer is the fiber buss distribution layer.Among the figure 10 be exactly the pedestal that exposes with the pedestal optic fibre hole between be connected the optical cable bus, the fiber lengths between any a pair of optic fibre hole all equates, arrives when can guarantee the consistance of time-delay in the BU and signal like this.Base plate 9 provides being electrically connected of AOFBI pedestal.The optical synchronous signal source of using for this BU also is provided on the base plate 9, and frequency is 1G, 5G, 10GHz.These synchronizing signals will provide the synchronizing signal of control usefulness by the AOFBI pedestal to IDU and bridge.Every BU has a sequence number to read for IDU and bridge, and this sequence number is unique, plays a part very crucial in its long-range addressing in how advanced fiber buss Multi-AOFB.The basic seat number of each AOFBI pedestal all can read, and this is for providing addressing necessary.
Be numbered 1 on the BU of Fig. 2,2,3,4 AOFBI pedestal, D1 on its fiber array, D2, D3 channel interface have 12 interfaces altogether, they connect with 6 special optic fibre passages as shown in Figure 6, and concrete topological relation is: 1D1-2D1,1D2-3D2,1D3-4D3,2D2-4D2,2D3-3D3,3D1-4D1.A kind of like this structure provides very powerful data transmission capabilities, with Fig. 1 is example, the 5th, CPU, the 6th, storer, the 7th, graphic process unit GPU, the 8th, the words of T-Bridge, following a series of operation: CPU may take place in this system write data by the 2D1 interface of storer to address a1 with the 1D1 passage, another process of CPU reads from data of the a2 address that storer is sent from the 1D1 passage, GPU reads a data block by 3D3 from storer a3 address, the RGB data of GPU after with volume rending are delivered to the 4D1 interface of T-Bridge and then are sent to display by 3D1, T-Bridge will pass through 4D2 from the data block of hard disk, the disk buffer that 2D2 is sent to the a4 address of storer upgrades operation, and GPU and CPU pass through 1D2,3D2 carries out a session.In present PC, the operation of top great majority must take bus by the queuing timesharing and finish singly, but in advanced fiber buss system, top sequence of operations can be carried out simultaneously by 6 autonomous channels.Certainly, precondition is the multitask of IDU internal support, and for example the IDU storer wants to read while write the data of 4 different addresses.
Be numbered 1,2,3,4 AOFBI pedestal on the BU of Fig. 2, the B on its fiber array is to be connected by a kind of special coupled fiber structure with C-channel.First of C-channel C (0) for example, there are 4 C (0) to be respectively on the BU: 1C (0), 2C (0), 3C (0), 4C (0), the simple optical fiber of drawing in their optic fibre hole is behind the optical fiber buried via hole that has gone out the AOFBI pedestal, just be divided into two forks separately, light path also is divided into two forks simultaneously, the corresponding 8 furcation area optical fiber of 4 C (0), and 8 optical fiber are formed 4 petal-like structures of Fig. 5 then, the centre demonstrate they again more again 4 converge into an optical fiber, and the fiber distance of each light path is all strict equates.Such special construction can be so that the light signal that any one C (0) sends can both arrive 3 C (0) in addition simultaneously.A plurality of such special Coupling optical fiber gather the B that has just formed Fig. 5, the bus structure of C-channel.The shared data passage must be connected to each other with top such connected mode, because light signal is different with electric signal, it is directed the transmission, can not resemble random turning round the electric signal, and each need turn round, bifurcated, the place converged all will carry out careful special processing.This characteristic of light signal has determined that the physical arrangement of light bus and annexation definitely can not be identical with electric bus.The purposes of broadcast channel is, in case an IDU has obtained broadcast data channel by the control channel agreement, it just can be put into data on the broadcast channel, and these data arrive in addition 3 interfaces simultaneously and do not need to divide with special data channel and 3 times data are sent to 3 interfaces.
Bridge is the vitals in the advanced optical fiber bus system, and it is responsible for the work of data forwarding, conversion of signals.One provides the transponder of complete forwarding capability that extremely strong data-handling capacity and enough big data buffer will be arranged usually, it will set up the bus topology table, the address data of striding BU is put on the correct port, if the exchanges data of interdepartmental system, a conversion of signals layer will be arranged, with the signaling of advanced fiber buss and control and interface signal outside data-switching becomes system.These conversion work are undertaken by translational bridging device (T-Bridge).Exchange bridge (S-Bridge) is to serve for the how advanced fiber buss Multi-AOFB structure of advanced fiber buss, by BU is connected the topological structure that we can obtain diversified Multi-AOFB by different way with S-Bridge.What Fig. 9 showed is exactly the Multi-AOFB topological structure that several frequently seen simple 4 pedestal BU form.The operation of Multi-AOFB interior span BU has only two kinds: addressing and reading and writing data.The addressing here is meant the requirement of a specific I DU to the data channel of the IDU of another ad-hoc location and bridge.Visiting an IDU can only conduct interviews by its one of 4 passages, if the parts more than 4 are arranged in the Multi-AOFB bus, the visit failure may will occur so.Because 4 passages of possible IDU have all been taken by other IDU and bridge.In this case, the addressing originating end can be waited for, also can ask the data cached and request of S bridge, sends in the past after destination channel discharges by the time again.The S bridge of a two-port will inquire about the bus topology table and control data transmits between 6 special data channels and 2 broadcast data channels, also will analyze the signaling from 2 control channels simultaneously.Addressing in BU between the IDU does not need to wait for, and addressing speed the fastest be slow finishing the maximum speed limit that (fiber delay time) addressing between BU and BU is subjected to fiber buss distance and bridge response speed within 2 nanoseconds, and have the possibility that addressing is waited for.We call long-range addressing to the outer addressing of BU, are called a jumping through the long-range addressing of a S bridge, are called double bounce through the long-range addressing of two S bridges, are called 3 through the long-range addressing of 3 S bridges and jump, by that analogy.
Bus system previously discussed has only been considered the situation of a carrier wave of transmission in the optical fiber, in fact can transmit the carrier wave of hundreds and thousands of different frequency bands on theory of fiber.These carrier waves can be regarded a plurality of transmission channels of telling again as in an optical-fibre channel, if utilize the wavelength-division technology, operable passage just is not 5 but more between IDU and bridge and the bridge.Especially the data transmission between bridge and the bridge has and need utilize wavelength-division multiplex technique to obtain bigger data transmission capabilities most.This shows that the system transmission capacity of advanced optical fiber bus system is very huge.The potentiality of multi-multipoint transmission can also continue to excavate.
Advanced fiber buss can be widely used in concurrent computational system, neural network computing system, and it can also be applied to the personal computer system simultaneously.The electric bus of the personal computer of present PC standard can't carry the CPU of the above inner dominant frequency of following gigabit.Therefore be necessary present PC software platform is transplanted in the system of advanced optical fiber bus standard, compatible fully transplanting is possible, but will solve some technical matterss.At first to solve the problem of instruction set compatibility, OUT instruction, IN instruction, interrupt mechanism, the DMA mechanism that resembles the x86 series processors of Intel all be advanced optical fiber bus system can not be compatible.Ways of addressing this issue is that a control signal conversion layer is set under the existing framework of x86, convert the external control signal of x86 to advanced optical fiber bus signals, with in the advanced optical fiber bus signals about I/O, interrupt, the switching signal of DMA is sent to the T bridge, by the conversion layer of T bridge with the coherent signal reduction and send to corresponding interface such as interruptable controller, various external unit.

Claims (9)

1. one kind is transmitted bus system with high speed fibre as the signal of physical transfer carrier, it is characterized in that: by a plurality of advanced optical fiber bus interface, the pedestal of advanced optical fiber bus interface and base plate thereof also have various connecting pieces to constitute, wherein, the pedestal of several advanced fiber busss and a base plate primordial advanced optical fiber bus unit originally, pedestal and interface all contain the fiber array that can transmit signal mutually, utilize special data channel between each pedestal respectively, the shared data broadcast channel, the high speed fibre passage of sharing three types in control signal passage is interconnected, and the effect of basic advanced optical fiber bus unit is to link with the various web members that contain advanced optical fiber bus interface, signal transmission and exchange between each web member are provided, and a plurality of web members and basic advanced optical fiber bus unit combine and can constitute the how advanced optical fiber computer bus structure with complex topology structure.
2. according to the described bus system of claim 1, it is characterized in that: the base construction of described advanced optical fiber bus interface is a kind of interface device that can be arranged on the base plate, the optic fibre hole battle array of latticed arrangement is distributing on the upper surface of pedestal, optical fiber in the optic fibre hole of the similar interface device on the optical fiber in the optic fibre hole and other pedestals communicates, and does not have the zone of optic fibre hole battle array to have special zone that the electric jack of vertical pedestal upper surface is set at base-plates surface.
3. according to the described bus system of claim 1, it is characterized in that: described advanced optical fiber bus interface is a kind of interface structure that connects advanced optical fiber bus interface pedestal, it has the upper surface of a face and pedestal to combine closely, latticed optic fibre hole battle array distributes on this face, these optic fibre holes are corresponding one by one with optic fibre hole in the advanced optical fiber bus interface pedestal, make the light wave in every pair of optic fibre hole between two interface devices, freedom to pass through mutually, light signal in the optic fibre hole can pass through optical fiber, optical waveguide or directly lead to the photoelectricity-electric light conversion array of data module, the data of transmission light carrier, there is not the zone of optic fibre hole battle array that a special zone is arranged at advanced fiber buss interface surface, the distribution electric connector, the electric jack of all electric connectors and advanced optical fiber bus interface pedestal is corresponding one by one and engage.
4. according to the described bus system of claim 1, it is characterized in that: the structure of described basic advanced optical fiber bus unit is that the deposited copper soleplate by a plurality of advanced optical fiber bus interface pedestals and packaged fiber constitutes, copper-clad provides for advanced optical fiber bus interface pedestal and is electrically connected, can couple together by the optical fiber route of carrying out three kinds of logic functions respectively between any two interface pedestals, these three kinds of circuits are respectively: a shared data broadcast channel that is communicated with the total interface pedestal, a shared control signal passage that is communicated with the total interface pedestal, special data channel between any two interface pedestals, the fiber package that connects each pedestal is in the interlayer of base plate.
5. according to the described bus system of claim 1, it is characterized in that: also include a kind of fiber array that allows that is applied to advanced optical fiber bus interface and advanced optical fiber bus interface pedestal and aim at the structure that engages, this structure applications is in the optic fibre hole of advanced optical fiber bus interface pedestal and advanced optical fiber bus interface, form by two identical optical textures of structure, these two optical textures lay respectively in the optic fibre hole of advanced optical fiber bus interface pedestal and advanced optical fiber bus interface, middle by the connection of the interface between two interfaces light path, optical texture in the optic fibre hole contains a major diameter transparent cylinder that has convex lens structures, near the optical fiber of transmission signals opening concave lens focus, light signal is dispersed ejaculation in optical fiber, through approaching transmission abreast in the transparent cylinder in optic fibre hole behind the convex lens, pass the major diameter transparent cylinder of the laggard incoming interface another side of connection interface, converge in the optical fiber of laggard incoming interface opposite end or on photoelectricity-electro-optical conversioning device through convex lens then.
6. according to the described bus system of claim 1, it is characterized in that: a kind of interface conversion bridge that is called in the mentioned web member, it is that a kind of interface signal with advanced optical fiber bus interface converts the interface signal of other standard to so that the device that can communicate between the system of different bus architectures by photoelectricity-electric light switch technology, the interface conversion bridge has two or more interfaces, and one of them interface uses advanced optical fiber bus interface.
7. according to the described bus system of claim 1, it is characterized in that: a kind of exchange bridge that is called in the mentioned web member, it is a kind of device that will transmit between two or more advanced optical fiber bus units substantially from the signal of the fine bus interface of advanced optical, it uses photoelectricity---and one or more technology in electric light switch technology, wavelength-division multiplex technique and the routing strobe technology exchange light signal, the exchange bridge has two or more interfaces, and interface all uses advanced optical fiber bus interface.
8. according to the described bus system of claim 1, it is characterized in that: wherein a kind of independent data parts that are called of mentioned web member, it is a kind of circuit module that is connected with the advanced optical fiber bus interface pedestal of standard, the advanced optical fiber bus interface of any use interface standard, only finish the module that data send, receive, handle and can be called the independent data parts by an advanced optical fiber bus interface.
9. according to the described bus system of claim 1, it is characterized in that: also have a kind of interface surface structure that can be applied to advanced optical fiber bus interface, the interface surface of fiber array interface pedestal is one the recessed sphere of little radian, the interface surface of opposite end fiber array interface is a sphere that has little radian to protrude, the direction that concave surface is placed is opposite with gravity direction, and concave bottom has been placed the oil of transparent high index of refraction, like this when two interface surfaces align draw close after, just be full of equally distributed oil between two connection interfaces, the light beam of interface surface optical fiber battle array just can arrive the another side of interface by oil immersion interface rather than air interface.
CN 02134571 2002-08-19 2002-08-19 Optical fibre bus system Expired - Fee Related CN1220892C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN 02134571 CN1220892C (en) 2002-08-19 2002-08-19 Optical fibre bus system
PCT/CN2003/000071 WO2004017214A1 (en) 2002-08-19 2003-01-24 Advanced fiber bus system
AU2003285628A AU2003285628A1 (en) 2002-08-19 2003-01-24 Advanced fiber bus system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02134571 CN1220892C (en) 2002-08-19 2002-08-19 Optical fibre bus system

Publications (2)

Publication Number Publication Date
CN1477415A CN1477415A (en) 2004-02-25
CN1220892C true CN1220892C (en) 2005-09-28

Family

ID=31722681

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 02134571 Expired - Fee Related CN1220892C (en) 2002-08-19 2002-08-19 Optical fibre bus system

Country Status (3)

Country Link
CN (1) CN1220892C (en)
AU (1) AU2003285628A1 (en)
WO (1) WO2004017214A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7068892B1 (en) * 2005-03-29 2006-06-27 Intel Corporation Passively aligned optical-electrical interface
US8798431B2 (en) * 2012-06-01 2014-08-05 Telefonaktiebolaget L M Ericsson (Publ) Fine-grained optical shuffle interconnect topology migration

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5663901A (en) * 1991-04-11 1997-09-02 Sandisk Corporation Computer memory cards using flash EEPROM integrated circuit chips and memory-controller systems
US5423050A (en) * 1991-11-27 1995-06-06 Ncr Corporation Intermodule test across system bus utilizing serial test bus
CN1317748A (en) * 2000-04-12 2001-10-17 朱曜明 Optical fibre bus

Also Published As

Publication number Publication date
WO2004017214A1 (en) 2004-02-26
CN1477415A (en) 2004-02-25
AU2003285628A1 (en) 2004-03-03

Similar Documents

Publication Publication Date Title
US7817880B1 (en) Multi-chip systems using on-chip photonics
Nordin et al. Advanced optical interconnection technology in switching equipment
US7616889B2 (en) Byte-wide optical backplane switching method
CN102177668A (en) Methods and systems for implementing high-radix switch topologies on relatively lower-radix switch physical networks
US11100040B2 (en) Modular remote direct memory access interfaces
Schares et al. Optics in future data center networks
US5313536A (en) Modular photonic waveguide distribution system
Patterson et al. The future of packaging with silicon photonics
US5073000A (en) Optical interconnect printed circuit structure
US20230180424A1 (en) Break out module system
CN1220892C (en) Optical fibre bus system
US11561352B2 (en) High density optical I/O inside a data center switch using multi-core fibers
US20160195679A1 (en) Photonic waveguide
Berger et al. Challenges for the introduction of board-level optical interconnect technology into product development roadmaps
CN109271338A (en) A kind of restructural on-chip optical interconnection structure and communication means towards storage system
US5933608A (en) Multiway signal switching device including a WSIC and optical communication ports
Maniotis et al. Application-oriented on-board optical technologies for HPCs
JP2023549511A (en) Optical fiber connection device, optical fiber connection method, storage medium and electronic device
Duro et al. Modeling and analysis of the performance of exascale photonic networks
Taira Technology for optical co-packaging
US20240077781A1 (en) Computer architecture with disaggregated memory and high-bandwidth communication interconnects
JP5309211B2 (en) Hierarchical passive network
Kiamilev et al. Optically interconnected MCMs for gigabit ATM switches
Maniotis Computing architectures exploiting optical interconnect and optical memory technologies
Chamberlain et al. Architectures for optically interconnected multicomputers

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
DD01 Delivery of document by public notice

Addressee: Cao Xuejun

Document name: Notification of Termination of Patent Right

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20050928

Termination date: 20150819

EXPY Termination of patent right or utility model