Bidirectional multi-channel optical ring network using WDM techn

Details Bidirectional multi-channel optical ring network using WDM techn Bidirectional multi-channel optical ring network using WDM techn

1994-11-07

1996-08-20

Boudreau, Leo

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359125, 359137, 370 8515, H04B 1020, H04J 1400

Patent

active

055484310

ABSTRACT:
A bidirectional multi-channel all-optical ring network is provided, this network comprising a number of nodes linked by optical cables, each of the node comprising two of WDM/WDDM, packet switching devices, and a node controller, in which network a first optical signal group of wavelength channel signals (for example, .lambda.1, .lambda.3, .lambda.5, . . . ) are transferred in a counter-clockwise direction, and a second optical signal group of wavelength channel signals (for example, .lambda.2, .lambda.4, .lambda.6, . . .) are transferred in a clockwise direction, thereby allowing an optical data signal to be transmitted through the channel of shorter distance.

REFERENCES:
patent: 5369515 (1994-11-01), Majima
patent: 5406401 (1995-04-01), Kremer
Fortenberry, et al.: Optical Transparent Node For A Multiple-Bit-Rate Photonic Packet-Switched Local Area Network: Apr. 7-8, 1994, Proceedings of the EOS & SPIE, vol. 1974; EurOpts Series.

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