Photonic frequency routing type time division highway switch

Details Photonic frequency routing type time division highway switch Photonic frequency routing type time division highway switch

1994-07-14

1996-04-09

Boudreau, Leo

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359139, 359135, 359124, 370 50, H04J 1400, H04J 1408

Patent

active

055067123

ABSTRACT:
A photonic frequency routing type time division highway switch which requires no conflict control at the input side, and incorporates no inherent splitting loss of the optical signal power. The switch is formed by a plurality of tunable frequency convertors for allocating frequency channels to the optical signals on the input highways at each timeslot; a frequency router for connecting the optical signals outputted from the frequency convertors to its outputs according to the frequency channels allocated to the optical signals at each timeslot; and a plurality of frequency multiplexed output buffers for outputting the optical signals outputted from the frequency router to the output highways such that a plurality of optical signals with different frequency channels which are in an identical timeslot are outputted at different timeslots.

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patent: 5274487 (1993-12-01), Fujimoto
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patent: 5303078 (1994-04-01), Brackett et al.
patent: 5319484 (1994-06-01), Jacob et al.
G. R. Hill, "A Wavelength Routing Approach to Optical Communications Network," IEEE Infocom '88, 1988, pp. 0354-0362.
Richard A. Thompson, "Optimizing Photonic Variable-Integer-Delay Circuits" pp. 141 to 143 from Topical Meeting on Photonic Switching, Tech*ical Digest Series, vol. 13, Mar. 18-20, 1987.
Charles A. Brackett, "Dense Wavelength Division Multiplexing Networks: Principles and Applications", pp. 948 to 963, from IEEE Journal on Selected Areas in Communications dated Aug. 1990.

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