Gigabit per-second optical packet switching with electronic cont

Details Gigabit per-second optical packet switching with electronic cont Gigabit per-second optical packet switching with electronic cont

1993-02-19

1994-01-11

Chilcot, Jr., Richard E.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359139, 359140, 370 84, 370 941, H04J 1408

Patent

active

052786897

ABSTRACT:
Currently, with optical time division multiplexing, a switching node is operated at the peak transmission rate. For example, if the data transmission rate is 10 Gbps, the line cards in the switching circuit are also required to operate at this rate despite the fact that the switching node does not actually need to access the data at this rate. Thus, the electronics, which includes the line cards at the switching node, is expensive and less reliable than a low-speed design. In this invention the requirement of operating the switching node electronics at the high speed link bit rate is eliminated by encoding the packet header field at a lower rate than the information in the data field. As a result, the line cards need only operate at the lower header rate. This is possible because the switching node does not need to process the data portion of the packet, but only the header information. The high-speed data portion of the packet is not optically to electrically converted at the switching node, but it passes almost transparently through the switching node. The invention also discloses overlapping several logical networks on the same physical network.

REFERENCES:
patent: 4641303 (1987-02-01), Vogl
patent: 4788679 (1988-11-01), Kataoka et al.
patent: 4816820 (1989-05-01), Davis
patent: 4858112 (1989-08-01), Puerzer et al.
patent: 4860003 (1989-08-01), DeLuca et al.
patent: 4939721 (1990-07-01), De Bosio
patent: 4972408 (1990-11-01), Le Bihan Herve et al.
patent: 5189669 (1993-02-01), Nunokawa
"Blazenet: A Packet-Switched Wide-Area Network with Photonic Data Path" IEEE Transactioins on Communications; vol. 38, No. 6, Jun. 1990, Haas et al.
"Ultrafast All-Optical Synchronous Multiple Access Fiber Networks" IEEE Journal on Selected Areas in Communications, vol. SAC-4, No. 9, Dec. 1986, P. R. Prucnal et al.
"20 Gbit/s 100 Km Non-Linear Transmission With Semiconductor Source" British Telecom Research Labs, I. W. Marshall et al.; OFC 1990 Postconference Edition, San Francisco, Calif., Jan. 22-25, 1990.
"Terabit Lightwave Networks: The Multihop Approach" AT&T Technical Journal; A. S. Acompora et al.
"Loop Concatenation and Loop Replication to Improve Blazelan Performance" IEEE Journal on Selected Areas in Communications; vol. 8, No. 8, Oct. 1990, Z. Haas.

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