SU1767534A1 - Optical converter for storage group - Google Patents

Abstract

The invention relates to computing. An optical converter solves the problem of switching a large group of storage devices and central processing units, as well as an associative search for the correspondence between them. The optical converter allows to increase the speed, reliability, number of switched devices and expand the functionality of such devices. The converter contains groups of spectral emitters 2 for input (L C

Description

The invention relates to computing and can be used, for example, for switching a group of storage devices with a group of central processors, as well as for associative search for a correspondence between them when transmitting information between devices.

The aim of the invention is to expand the functionality of the converter by providing switching of a group of storage devices with a group of central processing units.

Figures 1 and 2 show an optical converter circuit for a group of storage devices, orthogonal projections; Fig. 3 is a block diagram of a control unit.

The optical converter can operate, for example, in conjunction with a group of electronic central processing units 1 and a group of electronic storage devices.

The optical converter for the storage device group contains groups of 2 spectral emitters, groups of optical fibers 3, groups of spectral demultiplexers 4, groups of optical fiber multiplexers 5, groups of optical fibers 6, groups of control or passive splitters 7, groups of optical fibers 8, groups of spectral demultiplexers 9, groups of photodetectors 10, groups of storage devices 11, groups of waveguide modulators 12, light guide multiplexers 13, optical fibers 14, spectral demultiplexers 15. groups of photodetectors 16, block 17 control occurrence.

Each group 2 of spectral emitters is designed to enter information of words or associative features transmitted by the corresponding central processor 1 into the converter in

the form of optical signals. In this case, different information words of the same processor can be entered into the converter in the form of optical signals either with the same wavelength or with different wavelengths. However, all bits of the same word are inserted into the converter with the same wavelength. Associative features transmitted by each processor 1 are introduced into the converter in the form of light beams having a spectral range overlapping the spectral range of the light beams on which

processor information words 1. Each group 2 may consist, for example, of fiber optic combiners (by the maximum number of transmitted word bits), each first input of which

associated with a corresponding tunable laser diode that can emit, for example, at as many wavelengths as there are storage devices 11, and the second input is connected to a laser diode or a light emitting diode with an emission spectrum that overlaps the tuning spectrum of the tunable laser diode located at the first input of the combiner . Each fiber of a group of optical fibers 3 is designed to transmit optical signals and can be made, for example, in the form of a fiber-optic or an integrated optical fiber.

Each group of spectral demultiplexers 4 is designed to direct optical signals with different wavelengths and, therefore, the words of the corresponding processor 1 displayed by them to different storage devices 11 or to separate optical signals with a wide spectrum

radiation and, therefore, the associative features of the corresponding processor 1 displayed by them onto the spectral components and simultaneously pointing them to all the storage devices 11. Demultiplexers 4 can be made, for example, based on fused couplers from single-mode optical fibers or integrated optical fibers or corrugated waveguides structures.

Each group of fiber optic multiplexers 5 is designed to direct light beams with different wavelengths and, consequently, the layers displayed by them transmitted by different processors 1 to the same corresponding memory device 11. Multiplexer 5 can be made, for example, in the form of fiber optical or integrated optical combiner.

Groups of light guides 6 are designed to transmit optical signals and may consist, for example, of fiber optic or integrated optical fibers.

Groups of controlled or passive couplers 7 are designed to direct light beams into different processing channels and can be performed, for example, in the form of directional or passive fiber-optic or integrated optical couplers.

Groups of light guides 8 are designed to transmit optical signals and can consist, for example, of fiber optic or integrated optical fibers.

Each group of spectral demultiplexers 9 is designed to direct optical signals with different wavelengths coming from different processors 1 to this storage device to different subgroups of photodetectors of a group of photodetectors 10. Each group of spectral demultiplexers 9 can be made, for example, on the basis of float couplers from single-mode optical fibers or integral optical fibers, or corrugated waveguide structures.

Each group of photodetectors 10 serves to convert light signals into electrical signals and enter information into the jamming device 11. Each group of photoreceivers 10 can be made, for example, in the form of a typesetting or integral photodetector array.

Each group of waveguide modulators 12 is designed, for example, to display indications of interrogation of a corresponding storage device and can be performed, for example, in the form of fiber modulators or in an integral form based on an electro-optical crystal.

Each light guide multiplexer 13 is designed to combine multicolor light beams that display different sign bits and are fed to a corresponding storage device into a single multicolor beam and can be performed, for example, in the form of optical fiber or integrated optical combiner.

The optical fibers 14 are designed to transmit optical signals and can be performed, for example, in the form of

5 fiber-optic or integral-optical fibers.

Each spectral demultiplexer 15 is designed to separate the multiwave (multicolor) light beam.

n one-wave (single-color) beams making it up and can be made, for example, on the basis of alloy couplings from single-mode optical fibers or integrated optical fibers, or corrugated waveguide structures.

5 Each group of photodetectors 16 serves to determine whether the associative features match the interrogation feature and can be performed, for example, as a typesetting or integral photodetector line.

0 The control block 17 provides for the operation of the converter and may consist, for example, of a clock generator 18, control signal formers 19, 20 control signals, a buffer accumulator 21, control drivers 22,23, a control signal 5, a buffer accumulator 24,

The optical converter for a group of storage devices can operate in two modes: in the switching mode of the storage devices, i.e. transferring information from any central processor to any storage device, and in the associative search mode of the storage device to which this information should be transmitted.

5 In the mode of switching memory devices, the optical converter works as follows,

Suppose that a group of central processors consisting of n (n 1,2,3 ...,)

The processors must be switched with a group of storage devices consisting of K (K 1,2,3 ...) devices.

At the command of the sync pulse generator 18, the formers 19 send control signals to groups 2 of spectral emitters, each n of which, belonging to the corresponding nth processor 1, converts the electrical signals of the transmitted word into optical signals, for example, so that all p

five

(p 1,2,3, ... S, a S is the maximum number of bits in a word) the light beams with the same wavelength corresponded to the discharge of this word. At the same time, depending on the number (address) of the storage device in the device group 11, to which this processor 1 should be directed, it transmits information at the corresponding wavelength Aj (i 1,2,3 ... K) according to the table (see also figure 1).

The optical signal from each emitter of the 2p spectral emitter group of the processor enters through the optical fiber 3 to the nth spectral demultiplexer 4, which, depending on the wavelength of light k, sends it through its respective branch to the Kth optical fiber multiplexer 5 of the corresponding Kth a storage device with which the n-th processor 1 should communicate.

The Kth fiber optic multiplexer 5 directs (after having combined the multicolored light beams into a single multicolor beam, if several different nth processors simultaneously access the Kth memory device) the light beam 6 through the light guide 6, splitter y. the light guide 8 to the K-th spectral demultiplexer 9. This demultiplexer 9 directs the optical signal from the n-th processor 1 (after splitting, if the connection is established with several different n-th processors, a multicolor beam to the spectral components) photodetection of the p-th subgroup of photoreceivers 10 of the corresponding K-th storage device 11, containing all p x n photodetectors.

At the command of the sync pulse generator 18, the shaper 20 sends control signals to groups of photodetectors 10, which convert optical signals into electrical signals received through buffer accumulators 21 into memory devices.

Thus, each central processor can access any one, a subgroup, or all K-m storage devices simultaneously. In addition, all n processors can simultaneously access different storage devices, any of their subgroups, or a single storage device.

In the associative search mode, the optical converter operates as follows.

At the command of the sync pulse generator 18, the shaper 19 sends control signals to all groups of 2 emitters that convert electrical signals of the transmitted associative features into optical signals with a wide spectral range containing all K spectral components on which information is transmitted in the switching mode,

these optical signals display associative features, for example, in the Reed-Muller code, the binary signs of which are represented in the Manchester forward code, followed by the reference

0 signal. The reference signal is generated, for example, when all emitters 2 display 1 in a simple code, i.e. emit light.

At the command of the generator, 18 sync pulses K of the polling signs from all K memory devices through shaper 22 are sent to the corresponding groups of wave-wise modulators 12, for example, in the Reed-Muller code, the binary signs of which are represented in the reverse Manch code of the “Ster” with a time reference With a signal, Each K th indication of the poll is applied to the corresponding K th modulator group, and when the reference signal is applied to each K th group of modulators remains open, for example, only one

5 modulator (the rest are closed), i.e. in each group of modulators, only one binary 1 is displayed, the remaining O is all in simple code.

Light beams displaying each

dyi rank p-th associative feature

The information that needs to be transmitted from the nth processor 1 is transmitted through the light guide 3 to the corresponding spectral demultiplexer 4, which splits them into K spectral components, each of which sends the corresponding Kth multiplexer 5 through the corresponding branch. Each K th multiplexer 5 combines the light beams received from all of the central processing units 1 into a single n-color beam. These beams are guided through the light guides 6, the couplers 7 into groups of waveguide modulators 12, representing the bits of all the K signs of the survey.

Since multicolored light beams reflecting the binary digits of all n associative features pass through K modulator groups 12, which reflect the corresponding bits of all K polling signs, optical multiplication of all n associative signs on all K polling signs and with the optical signals of the works

spectrally separated.

Multi-color light beams, corresponding to all bits of each K-th polling attribute, are combined by multiplexer 13 into a single n-color beam, which through light guide 14 enters the corresponding K-th spectral demultiplexer 15. This demultiplexer 15 sends each The n-th spectral component of a multicolor light beam to the corresponding n-th photodetector of a group of photo-detectors 16 of the K-th storage device 11. The number of the n-th photodetector in the group of photo-receivers 16 corresponds to the n-th associative feature, t. . n-th processor.

At the command of the generator 18, the driver 23 applies voltage to groups of photoreceivers 16. The number of the nth photodetector of the Kth group of photodetectors 16, on which the optical reference signal exceeds the optical signal of the main bits, determines the nth associative feature by which a coincidence occurred. At the command of the generator 18, the code of the number of this n-th photodetector from the K-th group of photo-receivers 16 is transmitted through the accumulator 24 to the corresponding storage device 11. Thus, the correspondence between the n-th central processors and the C-th storage devices is determined. information The optical converter is switched to the switching mode.

Claims (1)

Optical converter for a group of storage devices containing n (where n 1,2,3 ... is the number of processors), groups of spectral emitters, the electrical inputs of which are information inputs of the optical converter, a group of optical fiber multiplexers, a optical fiber multiplexer , the first group of demultiplexers, k (where k 1,2,3, ..- according to the number of switched memory devices in the group) groups of waveguide modulators, each of which contains S (where S is the maximum number of simultaneously transmitted p word arrays of modulators, to optical fibers, the output of each k-th of which is optically connected to the input of the corresponding k-th spectral-year multiplexer, each output of which is optically connected with the same photodetector, the k-th group of first photodetectors, whose electrical outputs are the output outputs of the optical converter, the control unit, whose outputs from the first to the third are connected respectively to the control inputs of the groups of spectral emitters, groups of waveguide modulators and 0 the first groups of photodetectors, characterized in that, in order to expand the functionality of the converter by providing switching groups of memory devices, (k-1) groups of light-guided multiplexers, each of which contains S multiplexers, (p-1) of the first groups of spectral demultiplexers, groups with 0 of the first to third fibers, to the second groups of spectral demultiplexers, each of which contains S spectral demultiplexers, to the groups of splitters, each of which contains S 5 splitters, short circuits of the second groups of photodetectors, a group of light guide multiplexers contain S multiplexers, the light guide multiplexer has S inputs, and the first group of demultiplexers is made in the form of S spectral demultiplexers, and the outputs of each nth group of spectral emitters through the corresponding nth group of first groups of optical fibers are optically coupled to the like inputs of the corresponding nth group The first 5 groups of spectral demultiplexers, each group of different spectral outputs of the non-named n-th first groups of spectral demultiplexers, are optically coupled to the same inputs. 0 of the corresponding k-th group of optical fiber multiplexers, S outputs of which are optically connected through the corresponding optical fibers of the k-th group of second optical fibers with the corresponding inputs of the corresponding k-th 5 groups of splitters, S of the first outputs of which through the corresponding k-th group of the third groups of optical fibers are optically connected with the S-inputs of the same name with the corresponding k-th group of the second groups 0 spectral demultiplexers, the outputs of each S-ro from which are optically connected with the same inputs to the 5th group of the second groups of photodetectors, whose electrical outputs are informational outputs of the optical converter, S the second outputs of each to the k-th group of splitters are optically connected with the same The S-inputs of the corresponding k-th group of waveguide modulators, S outputs of which are optically coupled to the same-S inputs of the corresponding K-th fiber-optic multiplexer, the output of which is optically connected to the input One of the corresponding K-th fiber, the fourth output of the control unit is connected to the control inputs of the second groups of photodetectors. HZ kiO Q7lB nЈ Mtf orl MM m iiTi j nil M FIG. 3