CA2092482A1 - Multistage switching facility for optical signals - Google Patents
Multistage switching facility for optical signalsInfo
- Publication number
- CA2092482A1 CA2092482A1 CA2092482A CA2092482A CA2092482A1 CA 2092482 A1 CA2092482 A1 CA 2092482A1 CA 2092482 A CA2092482 A CA 2092482A CA 2092482 A CA2092482 A CA 2092482A CA 2092482 A1 CA2092482 A1 CA 2092482A1
- Authority
- CA
- Canada
- Prior art keywords
- optical signals
- switching facility
- multistage switching
- facility
- last stage
- 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.)
- Granted
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
-
- 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
- H04Q11/0062—Network aspects
- H04Q11/0066—Provisions for optical burst or packet networks
-
- 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
- H04Q2011/0007—Construction
- H04Q2011/002—Construction using optical delay lines or optical buffers or optical recirculation
Abstract
A multistage switching facility for optical signals where time conversions are only used in the last stage while only space and frequency conversions are used in the other stages. The last stage contains space, time and frequency position converters resulting in a facility in which no signal overtaking is possible when multiple routing is provided in the switching facility.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4209790A DE4209790A1 (en) | 1992-03-26 | 1992-03-26 | Multi-stage switching device for optical signals |
DEP4209790.8 | 1992-03-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2092482A1 true CA2092482A1 (en) | 1993-09-27 |
CA2092482C CA2092482C (en) | 2001-01-09 |
Family
ID=6455043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002092482A Expired - Fee Related CA2092482C (en) | 1992-03-26 | 1993-03-25 | Multistage switching facility for optical signals |
Country Status (7)
Country | Link |
---|---|
US (1) | US5369514A (en) |
EP (1) | EP0568794B1 (en) |
AT (1) | ATE211875T1 (en) |
AU (1) | AU657606B2 (en) |
CA (1) | CA2092482C (en) |
DE (2) | DE4209790A1 (en) |
NZ (1) | NZ247164A (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5477362A (en) * | 1992-09-09 | 1995-12-19 | Hitachi, Ltd. | Optical switching system |
US5495356A (en) * | 1993-04-30 | 1996-02-27 | Nec Research Institute, Inc. | Multidimensional switching networks |
US5463486A (en) * | 1993-08-23 | 1995-10-31 | Unisys Corporation | Self-routing multi-stage photonic interconnect |
GB9317897D0 (en) * | 1993-08-27 | 1993-10-13 | Plessey Telecomm | Telecommunications switching element |
GB9410544D0 (en) * | 1994-05-26 | 1994-07-13 | Northern Telecom Ltd | Switched optical interconnect |
FR2726726A1 (en) * | 1994-11-04 | 1996-05-10 | Guillemot Christian | SWITCH SYSTEM FOR OPTICAL PACKETS |
WO1996042180A1 (en) * | 1995-06-08 | 1996-12-27 | Siemens Aktiengesellschaft | Non-blocking multi-cast wdm coupling arrangement |
US5825517A (en) * | 1995-12-06 | 1998-10-20 | Tellium, Inc. | Parametric wavelength interchanging cross-connect |
US5671304A (en) * | 1995-12-21 | 1997-09-23 | Universite Laval | Two-dimensional optoelectronic tune-switch |
KR100198936B1 (en) * | 1996-11-20 | 1999-06-15 | 정선종 | Multistage optical packet switching device using photoelectric element |
DE10010453B4 (en) * | 2000-03-03 | 2004-02-12 | Siemens Ag | Arrangement for generating a wavelength division multiplex signal with small channel spacings |
US6542655B1 (en) * | 2000-08-31 | 2003-04-01 | Lucent Technologies Inc. | N×N crossconnect switch using wavelength routers and space switches |
US20020122225A1 (en) * | 2001-03-01 | 2002-09-05 | Yigal Rappaport | Multiport wavelength division multiplex network element |
JP2016538799A (en) * | 2013-11-05 | 2016-12-08 | 華為技術有限公司Huawei Technologies Co.,Ltd. | Wavelength routing device |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6196893A (en) * | 1984-10-18 | 1986-05-15 | Fujitsu Ltd | Compound type light exchange device |
US4701907C1 (en) * | 1986-02-03 | 2002-08-27 | Collins Mary | Dynamically reconfigurable time-space-time digital switch and network |
DE3613051C2 (en) * | 1986-04-17 | 1994-09-08 | Siemens Ag | Coupling network component for optical signals |
JPH0714228B2 (en) * | 1986-08-20 | 1995-02-15 | 富士通株式会社 | Time division wavelength division merging type optical switching communication path device |
DE3853935T2 (en) * | 1987-09-30 | 1995-10-12 | Nec Corp | Time and wavelength division multiplexed switching system. |
JPH0834479B2 (en) * | 1987-10-22 | 1996-03-29 | 国際電信電話株式会社 | Optical packet switching system |
JPH025663A (en) * | 1988-06-23 | 1990-01-10 | Nec Corp | Optical packet exchange |
DE4008544A1 (en) * | 1990-01-22 | 1991-07-25 | Siemens Ag | Optical frequency switching appts. with noise elimination - for frequency channel selection in frequency-division multiplexing system, has 2nd order optical non-linear material for wave mixing |
DE4019225A1 (en) * | 1990-06-15 | 1991-12-19 | Standard Elektrik Lorenz Ag | OPTICAL SWITCHING ELEMENT |
JP2927897B2 (en) * | 1990-06-29 | 1999-07-28 | 日本電気株式会社 | Wavelength division / time division composite channel |
DE4108213A1 (en) * | 1991-03-14 | 1992-09-17 | Standard Elektrik Lorenz Ag | OPTICAL INTERFACE AND SWITCHING MODULE DAFUER |
-
1992
- 1992-03-26 DE DE4209790A patent/DE4209790A1/en not_active Withdrawn
-
1993
- 1993-03-10 DE DE59310256T patent/DE59310256D1/en not_active Expired - Lifetime
- 1993-03-10 AT AT93103832T patent/ATE211875T1/en not_active IP Right Cessation
- 1993-03-10 EP EP93103832A patent/EP0568794B1/en not_active Expired - Lifetime
- 1993-03-16 NZ NZ247164A patent/NZ247164A/en unknown
- 1993-03-19 AU AU35315/93A patent/AU657606B2/en not_active Ceased
- 1993-03-25 CA CA002092482A patent/CA2092482C/en not_active Expired - Fee Related
- 1993-03-25 US US08/036,675 patent/US5369514A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0568794B1 (en) | 2002-01-09 |
AU657606B2 (en) | 1995-03-16 |
EP0568794A2 (en) | 1993-11-10 |
EP0568794A3 (en) | 1995-02-22 |
AU3531593A (en) | 1993-09-30 |
US5369514A (en) | 1994-11-29 |
ATE211875T1 (en) | 2002-01-15 |
CA2092482C (en) | 2001-01-09 |
DE4209790A1 (en) | 1993-09-30 |
NZ247164A (en) | 1995-10-26 |
DE59310256D1 (en) | 2002-02-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |