Optical wavelength selection control system in optical networks

Details Optical wavelength selection control system in optical networks Optical wavelength selection control system in optical networks

1994-06-08

1996-05-28

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359123, 359125, 359133, 359136, 359137, H04B 10207, H04J 1402, H04J 1408

Patent

active

055217320

ABSTRACT:
An optical wavelength selection control system in an optical network includes an optical center node device and a plurality of terminal devices each comprised of a work station and an interface. The optical center node device includes a control circuit, a plurality of optical switches and a plurality of tunable wavelength filters. When there occurs a collision among the plurality of terminal devices wherein a plurality of terminal devices send simultaneously optical packets to the same terminal device, the control circuit operates to control the optical switches and the tunable wavelength filters such that they select only one optical packet, based on information relating to, for example, a data length to be transferred. The control circuit sends out an acknowledgment (ACK) signal to the terminal device whose optical packet has been selected. To each of the terminal devices whose optical packets have not been selected, the control circuit sends out, in addition to a not-acknowledgement (NACK) signal, a signal indicating a resending time schedule. There are no possibilities any more for at least these optical packets to be involved in the collision problems, and this ensures an enhancement of the throughput of the network system.

REFERENCES:
patent: 4723309 (1988-02-01), Mochizuki et al.
patent: 4781427 (1988-11-01), Husbands et al.
patent: 4797879 (1989-01-01), Habbab et al.
patent: 4809362 (1989-02-01), Claus et al.
patent: 4873681 (1989-10-01), Arthurs et al.
patent: 5018130 (1991-05-01), Suzuki et al.
patent: 5365344 (1994-11-01), Eda et al.
"A Media-Access Protocol for Packet-Switched Wavelength Division Multiaccess Metropolitan Area Networks", by Mon-Song Chen et al, IEEE Journal on Selected Areas in Communications, vol. 8, No. 6, Aug. 1990, pp. 1048-1057.

Affiliated with

Also associated with

Rating

Optical wavelength selection control system in optical networks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical wavelength selection control system in optical networks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical wavelength selection control system in optical networks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-791112