WO1988007313A3 - Improvements in electro optical switch architectures - Google Patents

Improvements in electro optical switch architectures Download PDF

Info

Publication number
WO1988007313A3
WO1988007313A3 PCT/US1988/000612 US8800612W WO8807313A3 WO 1988007313 A3 WO1988007313 A3 WO 1988007313A3 US 8800612 W US8800612 W US 8800612W WO 8807313 A3 WO8807313 A3 WO 8807313A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical switch
switch elements
optical
networks
electro optical
Prior art date
Application number
PCT/US1988/000612
Other languages
French (fr)
Other versions
WO1988007313A2 (en
Inventor
Ronald Anthony Spanke
Original Assignee
American Telephone & Telegraph
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 American Telephone & Telegraph filed Critical American Telephone & Telegraph
Priority to DE8888904726T priority Critical patent/DE3876434T2/en
Priority to AT88904726T priority patent/ATE83115T1/en
Publication of WO1988007313A2 publication Critical patent/WO1988007313A2/en
Publication of WO1988007313A3 publication Critical patent/WO1988007313A3/en
Priority to SG608/93A priority patent/SG60893G/en
Priority to HK1169/93A priority patent/HK116993A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0037—Operation
    • H04Q2011/0049—Crosstalk reduction; Noise; Power budget
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0052—Interconnection of switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Optical Communication System (AREA)
  • Optical Integrated Circuits (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

Optical switch networks and the design rules for creating them are disclosed. The networks comprise a plurality of input (84) and output (88) stages of optical switch elements. Each input optical switch stage is comprised of a plurality of 1 by 2 optical switch elements (90 through 93) and each output stage is comprised of a plurality of 2 by 1 optical switch elements (94 through 101). Using these stages, optical switch networks are constructed where switch elements are interconnected by optical waveguides diffused in a substrate. Further, the connections between adjacent stages include optical waveguide crossovers (crossthroughs).
PCT/US1988/000612 1987-03-13 1988-02-29 Improvements in electro optical switch architectures WO1988007313A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8888904726T DE3876434T2 (en) 1987-03-13 1988-02-29 IMPROVEMENTS IN ELECTRO-OPTICAL SWITCH ARCHITECTURES.
AT88904726T ATE83115T1 (en) 1987-03-13 1988-02-29 IMPROVEMENTS IN ELECTRO-OPTICAL SWITCH ARCHITECTURES.
SG608/93A SG60893G (en) 1987-03-13 1993-05-07 Improvements in electro optical switch architectures
HK1169/93A HK116993A (en) 1987-03-13 1993-10-28 Improvements in electro optical switch architectures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/025,331 US4787692A (en) 1987-03-13 1987-03-13 Electro optical switch architectures
US025,331 1987-03-13

Publications (2)

Publication Number Publication Date
WO1988007313A2 WO1988007313A2 (en) 1988-09-22
WO1988007313A3 true WO1988007313A3 (en) 1988-10-06

Family

ID=21825399

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1988/000612 WO1988007313A2 (en) 1987-03-13 1988-02-29 Improvements in electro optical switch architectures

Country Status (9)

Country Link
US (1) US4787692A (en)
EP (1) EP0349597B1 (en)
JP (1) JPH02503850A (en)
AT (1) ATE83115T1 (en)
CA (1) CA1287391C (en)
DE (1) DE3876434T2 (en)
HK (1) HK116993A (en)
SG (1) SG60893G (en)
WO (1) WO1988007313A2 (en)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3871412D1 (en) * 1987-03-10 1992-07-02 Oki Electric Ind Co Ltd OPTICAL SWITCH MATRIX.
LU87165A1 (en) * 1987-08-20 1988-08-23 Siemens Ag MULTI-STAGE COUPLING
US4846542A (en) * 1987-10-09 1989-07-11 Oki Electric Industry Co., Ltd. Optical switch matrix
US4934775A (en) * 1989-01-18 1990-06-19 Gte Laboratories Incorporated Optical space switches using cascaded coupled-waveguide optical gate arrays
US4896934A (en) * 1989-02-03 1990-01-30 Bell Communications Research, Inc. Broadband optical multicast switch
GB8904281D0 (en) * 1989-02-24 1989-04-12 British Telecomm Optical interconnect networks
JP2675133B2 (en) * 1989-04-19 1997-11-12 日立電線株式会社 Waveguide type optical star coupler
US5023864A (en) * 1989-05-08 1991-06-11 At&T Bell Laboratories Crossover network utilizing two-dimensional arrays of nodes
US5258978A (en) * 1989-05-08 1993-11-02 At&T Bell Laboratories Space-division switching network having reduced functionality nodes
US5077483A (en) * 1989-05-08 1991-12-31 At&T Bell Laboratories Network topology for reduced blocking and photonic system implementation thereof
US5122892A (en) * 1989-05-08 1992-06-16 At&T Bell Laboratories Space-division switching network having reduced functionality nodes
US5009477A (en) * 1989-05-12 1991-04-23 At&T Bell Laboratories Optical interconnect arrangement
FR2649494B1 (en) * 1989-07-10 1991-10-11 Onera (Off Nat Aerospatiale) OPTICAL INFORMATION TRANSMISSION SYSTEM, PARTICULARLY FOR AIRCRAFT
US4932735A (en) * 1989-09-29 1990-06-12 Gte Laboratories Incorporated Integrated optical hybrid matrix switches with very low crosstalk
US4932736A (en) * 1989-09-29 1990-06-12 Gte Laboratories Incorporated High-extinction 1×2 integrated optical switch
US5002354A (en) * 1989-10-16 1991-03-26 Gte Laboratories Incorporated High-extinction 2×2 integrated optical changeover switches
US5113276A (en) * 1989-11-09 1992-05-12 Siemens Aktiengesellschaft Optical communication network using redundant waveguides and two way operation
US4997245A (en) * 1990-01-04 1991-03-05 Smiths Industries Aerospace & Defense Systems Incorporated Polarization independent optical switches
GB9007139D0 (en) * 1990-03-30 1990-05-30 British Telecomm Optical component
US5002355A (en) * 1990-05-08 1991-03-26 Amp Incorporated Optical matrix switch with coupler elements
US5050951A (en) * 1990-05-08 1991-09-24 Amp Incorporated Optical matrix switch with longitudinally configured switch elements
US5048910A (en) * 1990-05-08 1991-09-17 Amp Incorporated Optical matrix switch for multiple input/output port configurations
DE69127423T2 (en) * 1990-11-14 1998-02-19 Nec Corp Self-routing network with optical gate matrix
US5181134A (en) * 1991-03-15 1993-01-19 At&T Bell Laboratories Photonic cross-connect switch
DE4213424C2 (en) * 1991-04-26 1996-03-07 Matsushita Electric Works Ltd Device for selectively feeding a laser beam to one of several laser welding stations
US5268973A (en) * 1992-01-21 1993-12-07 The University Of Texas System Wafer-scale optical bus
FR2686754B1 (en) * 1992-01-24 1994-12-09 Alcatel Nv OPTICAL SWITCHING MATRIX AND INTERCONNECTION NETWORK IN PARTICULAR FOR THIS MATRIX.
DE4213095A1 (en) * 1992-04-21 1993-10-28 Bosch Gmbh Robert Optical switching network
JP2859112B2 (en) * 1993-11-26 1999-02-17 日本電気 株式会社 Light emitting array module
SE516732C2 (en) * 1994-06-10 2002-02-19 Ericsson Telefon Ab L M Three-step selector unit
US5524154A (en) * 1994-08-31 1996-06-04 At&T Corp. Hybrid architecture for an optical switching fabric implemented with 1×2 switching devices
US6236775B1 (en) * 1998-05-19 2001-05-22 Lynx Photonic Networks Inc. Integrated optical switch array
US6366713B1 (en) * 1998-09-04 2002-04-02 Tellabs Operations, Inc. Strictly non-blocking optical switch core having optimized switching architecture based on reciprocity conditions
US6259834B1 (en) * 1999-07-29 2001-07-10 Lynx Photonic Networks Inc. Dense tree optical switch network
SE518427C2 (en) * 2000-01-21 2002-10-08 Gunnar Karlsson Method and apparatus for multiplexing data flows
US6850662B1 (en) 2000-07-31 2005-02-01 Tellabs Operations, Inc. Optical switch for reciprocal traffic
US6363182B2 (en) 2000-07-31 2002-03-26 James D. Mills Optical switch for reciprocal traffic
US7006737B2 (en) * 2001-10-05 2006-02-28 Fiber Optics Network Solutions Corp. Integrated optical splitter system
US20050050243A1 (en) * 2003-08-29 2005-03-03 Clark Stacey A. Modified core-edge topology for a fibre channel network
CN100392450C (en) * 2005-10-27 2008-06-04 上海未来宽带技术及应用工程研究中心有限公司 8X8 array optical switch system
US9363581B2 (en) * 2013-03-28 2016-06-07 Lumentum Operations Llc Compact multicast switches, MxN switches and MxN splitters
US11441893B2 (en) * 2018-04-27 2022-09-13 Kla Corporation Multi-spot analysis system with multiple optical probes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027410A1 (en) * 1979-10-10 1981-04-22 Thomson-Csf Telephone Switching method for time division multiplex signals transmitted by a carrier wave, particularly an optical wave, and device for putting it into use
DE3423221A1 (en) * 1984-06-21 1984-11-29 Heinrich-Hertz-Institut für Nachrichtentechnik Berlin GmbH, 1000 Berlin Optical star coupler having a large number of inputs and outputs

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012113A (en) * 1975-12-17 1977-03-15 Herwig Werner Kogelnik Adjustable optical switch or modulator
JPS53144353A (en) * 1977-05-23 1978-12-15 Nippon Telegr & Teleph Corp <Ntt> Optical path switch
JPS5895330A (en) * 1981-11-30 1983-06-06 Nippon Telegr & Teleph Corp <Ntt> Optical switch
JPS5945423A (en) * 1982-09-07 1984-03-14 Nec Corp Matrix optical switch and its driving method
JPS6076722A (en) * 1983-10-04 1985-05-01 Nec Corp Matrix optical switch
JPS63197195A (en) * 1987-02-10 1988-08-16 Nec Corp Optical matrix switch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027410A1 (en) * 1979-10-10 1981-04-22 Thomson-Csf Telephone Switching method for time division multiplex signals transmitted by a carrier wave, particularly an optical wave, and device for putting it into use
DE3423221A1 (en) * 1984-06-21 1984-11-29 Heinrich-Hertz-Institut für Nachrichtentechnik Berlin GmbH, 1000 Berlin Optical star coupler having a large number of inputs and outputs

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IEEE Journal of Quantum Electronics, volume QE-22, no. 6, June 1986, IEEE, (New York, US), R.A. Spanke: "Architectures for large nonblocking optical space switches", pages 964-67 *
IEEE Transactions on Communications, volume COM-27, no 2, February 1979, IEEE (us), H. Ogiwara et al.: "Optical switching system experiment", pages 517-521 *

Also Published As

Publication number Publication date
JPH0520955B2 (en) 1993-03-22
WO1988007313A2 (en) 1988-09-22
US4787692A (en) 1988-11-29
DE3876434D1 (en) 1993-01-14
SG60893G (en) 1993-07-09
JPH02503850A (en) 1990-11-08
EP0349597B1 (en) 1992-12-02
ATE83115T1 (en) 1992-12-15
EP0349597A1 (en) 1990-01-10
CA1287391C (en) 1991-08-06
HK116993A (en) 1993-11-05
DE3876434T2 (en) 1993-04-01

Similar Documents

Publication Publication Date Title
WO1988007313A3 (en) Improvements in electro optical switch architectures
CA2036679A1 (en) Optical multiplexer/demultiplexer
GB8902746D0 (en) Communications network
WO2002001275A3 (en) Optical switch
KR960036397A (en) Optical equalizer
DK164539C (en) TOYS BUILDING TO BUILD GROWN-LIKELY MODELS
EP2273293A3 (en) Waveguide grating router having a predetermined composite amplitude spectrum
DE3884537T2 (en) Communication mediation element.
CA2349602A1 (en) Optical coupler and method of manufacturing the same
ATE184428T1 (en) MULTI WAVELENGTH SOURCE
EP0149891A3 (en) Optical waveguide coupler
EP0264239A3 (en) An arrangement for linking multistage switching matrices
JPS60200210A (en) Photocoupler
WO1995035010A3 (en) Atm-system adapted three stage switching unit
ATE145289T1 (en) OPTICAL WAVEGUIDES, ELEMENTS FOR THE PRODUCTION OF THESE DEVICES AND PROCESSES FOR THE PRODUCTION OF THESE ELEMENTS AND DEVICES
EP0813077A3 (en) Integrated optical waveguide and method for manufacturing same
DK510488D0 (en) PIN INGAS PIN INPUT / INP TYPE
CA2016519A1 (en) Multistage switching device
JPS56150706A (en) Multiple optical branching filter
CA2045149A1 (en) Injection molded star-couplers and methods of making same
JPS5497441A (en) Repeating spacing adjusting light circuit of optical communication
JPS634208A (en) Two-branch type optical unequal distributor
JPS6457210A (en) Optical input/output parts
JPH0961648A (en) Nxm splitter waveguide element
CA2256186A1 (en) Optical wavelength routing device

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE

AK Designated states

Kind code of ref document: A3

Designated state(s): JP

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LU NL SE

WWE Wipo information: entry into national phase

Ref document number: 1988904726

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1988904726

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1988904726

Country of ref document: EP