Method and system for communication between optical and SONET la

Details Method and system for communication between optical and SONET la Method and system for communication between optical and SONET la

1998-01-20

2000-09-19

Chan, Jason

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359119, 359123, 359124, 359128, H04B 1020, H04J 400, H04J 1402

Patent

active

061220825

ABSTRACT:
In a mixed WDM/SONET network having optical and SONET layers, the communication between these layers is provided by optoelectronic units. The optical layer of the mixed network is presented by a WDM equipment and a service restoration system which utilizes optical switches and protects the mixed network from loss of the WDM traffic. The optoelectronic units monitor WDM and SONET traffic and control optical switches by utilizing a WDM/SONET adapter for communicating information between WDM and SONET equipment. The WDM/SONET adapter generates temporary SONET signals and passes these signals through the WDM and SONET equipment, and a service channel for transmitting control signals from the WDM/SONET adapter to the optical switches.

REFERENCES:
patent: 5406549 (1995-04-01), Kremer
patent: 5550818 (1996-08-01), Brackett et al.
patent: 5870212 (1999-02-01), Nathan et al.
patent: 5920412 (1999-07-01), Chang
patent: 5978113 (1999-11-01), Kight
patent: 5982517 (1999-11-01), Fishman
U.S. Patent Application S/N 08/867,346 "Method and System for Service Restoration in Optical fiber communication Networks", filed on Jun. 2, 1997 by Fishman, I.M.
U.S. Patent Application "System and Method for Protection of WDM/SONET Networks", filed on Dec. 4, 1997 by Fishman, I.M.
B. Kumar "Broadband Communications": a professional Guide to ATM, Frame Relay, SMDS, SONET and BISDN, McGraw-Hill, NY, 1995, pp. 164-181.
T.H.Wu "Fiber Network service Survivability" Norwood, MA, Artech House, 1992, pp. 38-53, and pp. 75-109.

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