Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1991-09-03
1992-05-19
Coles, Sr., Edward L.
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359139, 359140, H04J 1400
Patent
active
051153319
ABSTRACT:
An optical crossbar switch includes a plurality of input integrated optical couplers connected to a star coupler at one end of an optical cable and a star coupler coupled to the other end of the optical cable connected to plurality of output integrated optical couplers. Discrete parallel optical input signals are fed to each of the input integrated optical switches and clock signals in a time division multiplexed switching sequence switch the parallel optical signals to serial form for transmission over the cable. Clock signals are connected to actuate the output integrated optical couplers in a synchronized, time division multiplexed switching sequence at GHz rates to assure the responsive transfer of a number of signals without the consequences associated with the excessive losses attendant conventional spatial light modulator interconnections.
REFERENCES:
patent: 3849604 (1974-11-01), Benes
patent: 4700339 (1987-10-01), Gordon
patent: 4726644 (1986-02-01), Mathias
Frenkel, "Multiple Angel Tuned Etalon Filters . . . Systems", Optics Lett, vol. 1 #8, 1988, pp. 684-686.
Dias et al., "Fiber Optic Crossbar Switch with Broadcast Capability" Optical Engineering, vol. 27 #11, pp. 955-960, Nov. 1988.
Berry Mark H.
Gookin Debra M.
Lasher Markham E.
Coles Sr. Edward L.
Fendelman Harvey
Keough Thomas Glenn
Pascal L.
The United States of America as represented by the Secretary of
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