Title:
WAVELENGTH-SELECTIVE OPTICAL SWITCHING APPARATUS
Document Type and Number:
WIPO Patent Application WO1999014879
Kind Code:
A3
Abstract:
An optical switching apparatus is designed to implement a serial switching architecture for wavelength division multiplexed (WDM) optical communication systems. The design allows for add/drop switching of a selected wavelength channel without switching a non-selected wavelength channel, thereby avoiding potential data loss on the non-selected channel during the add/drop switching interval. Exemplary implementations utilize fiber-optics and free-optics based approaches. The serial architecture readily accommodates new wavelength plans and/or the addition of new wavelength channels.
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Inventors:
DAILEY MICHAEL J JR (US)
HARRIS J MICHAEL (US)
KROL MARK F (US)
NOLAN DANIEL A (US)
HARRIS J MICHAEL (US)
KROL MARK F (US)
NOLAN DANIEL A (US)
Application Number:
PCT/US1998/019457
Publication Date:
September 10, 1999
Filing Date:
September 18, 1998
Export Citation:
Assignee:
CORNING INC (US)
DAILEY MICHAEL J JR (US)
HARRIS J MICHAEL (US)
KROL MARK F (US)
NOLAN DANIEL A (US)
DAILEY MICHAEL J JR (US)
HARRIS J MICHAEL (US)
KROL MARK F (US)
NOLAN DANIEL A (US)
International Classes:
G02B26/00; G02B6/293; G02B6/34; H04B10/27; H04B10/275; H04B10/29; H04B10/291; H04B10/80; H04J14/02; H04Q11/00; (IPC1-7): H04Q11/00; H04J14/02
Foreign References:
| EP0838918A1 | 1998-04-29 | |||
| EP0716521A2 | 1996-06-12 |
Other References:
TACHIKAWA Y ET AL: "ARRAYED-WAVEGUIDE GRATING MULTIPLEXER WITH LOOP-BACK OPTICAL PATHS AND ITS APPLICATIONS", JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 14, no. 6, 1 June 1996 (1996-06-01), pages 977 - 984, XP000598501
TOBA H ET AL: "DEMONSTRATION OF OPTICAL FDM BASED SELF-HEALING RING NETWORK EMPLOYING ARRAYED-WAVEGUIDE-GRATING ADM FILTERS AND EDFAS", PROCEEDINGS OF THE EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (EC, FIRENZE, SEPT. 25 - 29, 1994, vol. 1, no. CONF. 20, 25 September 1994 (1994-09-25), ISTITUTO INTERNAZIONALE DELLE COMUNICAZIONI, pages 263 - 266, XP000671739
JONES K P ET AL: "OPTICAL WAVELENGTH ADD-DROP MULTIPLEXER IN INSTALLED SUBMARINE WDM NETWORK", ELECTRONICS LETTERS, vol. 31, no. 24, 23 November 1995 (1995-11-23), pages 2117/2118, XP000548194
CHANG G -K ET AL: "MULTIWAVELENGTH RECONFIGURABLE WDM/ATM/SONET NETWORK TESTBED", JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 14, no. 6, 1 June 1996 (1996-06-01), pages 1320 - 1340, XP000598536
SENIOR J M ET AL: "DEVICES FOR WAVELENGTH MULTIPLEXING AND DEMULTIPLEXING", IEE PROCEEDINGS J. OPTOELECTRONICS, vol. 136, no. 3, PART J, 1 June 1989 (1989-06-01), pages 183 - 202, XP000119571
KAWAI S ET AL: "OPTICAL SWITCHING NETWORKS USING FREE-SPACE WAVELENGTH-DIVISION MULTIPLEXING INTERCONNECTIONS", IEICE TRANSACTIONS ON ELECTRONICS, vol. E78-C, no. 1, 1 January 1995 (1995-01-01), pages 81 - 84, XP000495087
KOJI SASAYAMA ET AL: "PHOTONIC FDM HIGHWAY SWITCH USING PLC RING RESONATORS", PROCEEDINGS OF THE EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (EC, MONTREUX, SEPT. 12 - 16, 1993 REGULAR PAPERS, vol. 2, no. CONF. 19, 12 September 1993 (1993-09-12), SWISS ELECTROTECHNICAL ASSOCIATION, pages 545 - 548, XP000492273
WILLNER A E ET AL: "OPTICALLY-AMPLIFIED WDM RING NETWORK INCORPORATING CHANNEL -DROPPINGFILTERS", IEEE PHOTONICS TECHNOLOGY LETTERS, vol. 6, no. 6, 1 June 1994 (1994-06-01), pages 760 - 763, XP000457241
TOBA H ET AL: "DEMONSTRATION OF OPTICAL FDM BASED SELF-HEALING RING NETWORK EMPLOYING ARRAYED-WAVEGUIDE-GRATING ADM FILTERS AND EDFAS", PROCEEDINGS OF THE EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (EC, FIRENZE, SEPT. 25 - 29, 1994, vol. 1, no. CONF. 20, 25 September 1994 (1994-09-25), ISTITUTO INTERNAZIONALE DELLE COMUNICAZIONI, pages 263 - 266, XP000671739
JONES K P ET AL: "OPTICAL WAVELENGTH ADD-DROP MULTIPLEXER IN INSTALLED SUBMARINE WDM NETWORK", ELECTRONICS LETTERS, vol. 31, no. 24, 23 November 1995 (1995-11-23), pages 2117/2118, XP000548194
CHANG G -K ET AL: "MULTIWAVELENGTH RECONFIGURABLE WDM/ATM/SONET NETWORK TESTBED", JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 14, no. 6, 1 June 1996 (1996-06-01), pages 1320 - 1340, XP000598536
SENIOR J M ET AL: "DEVICES FOR WAVELENGTH MULTIPLEXING AND DEMULTIPLEXING", IEE PROCEEDINGS J. OPTOELECTRONICS, vol. 136, no. 3, PART J, 1 June 1989 (1989-06-01), pages 183 - 202, XP000119571
KAWAI S ET AL: "OPTICAL SWITCHING NETWORKS USING FREE-SPACE WAVELENGTH-DIVISION MULTIPLEXING INTERCONNECTIONS", IEICE TRANSACTIONS ON ELECTRONICS, vol. E78-C, no. 1, 1 January 1995 (1995-01-01), pages 81 - 84, XP000495087
KOJI SASAYAMA ET AL: "PHOTONIC FDM HIGHWAY SWITCH USING PLC RING RESONATORS", PROCEEDINGS OF THE EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (EC, MONTREUX, SEPT. 12 - 16, 1993 REGULAR PAPERS, vol. 2, no. CONF. 19, 12 September 1993 (1993-09-12), SWISS ELECTROTECHNICAL ASSOCIATION, pages 545 - 548, XP000492273
WILLNER A E ET AL: "OPTICALLY-AMPLIFIED WDM RING NETWORK INCORPORATING CHANNEL -DROPPINGFILTERS", IEEE PHOTONICS TECHNOLOGY LETTERS, vol. 6, no. 6, 1 June 1994 (1994-06-01), pages 760 - 763, XP000457241
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