Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Patent
1997-12-31
1999-11-09
Epps, Georgia
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
359618, G02B 2710, G02B 2714
Patent
active
059825545
ABSTRACT:
A bridging apparatus is used with an optical matrix crossconnect mechanism that has an array of reflective panels that are disposed in a plurality of columns and rows and are selectively operative between reflective states and non-reflective states. The bridging apparatus includes at least one light beam splitting device that is peripherally disposed in the array of reflective panels adjacent to an entry position of a light beam. The at least one light beam splitting device is operative in a retracted state to permit the light beam to enter into the optical matrix crossconnect mechanism in an undivided manner. The at least one light beam splitting device is operative in a beam splitting state so that the light beam entering into the optical matrix crossconnect mechanism can be divided into a first light beam portion and a second light beam portion which are directed into the optical matrix crossconnect mechanism in different directions.
REFERENCES:
patent: 3648050 (1972-03-01), Koo
patent: 4283115 (1981-08-01), Fraissl
Hiroshi Toshiyoshi and Hiroyuki Fujita, "Electrostatic Micro Torsion Mirrors for an Optical Switch Matrix", Journal of Microelectromechanical Systems, vol. 5, No. 4, Dec., 1996, pp. 231-237.
Goldstein Evan Lee
Lin Lih-Yuan
Simmons Jane Marie
AT&T Corp
Epps Georgia
Seyrafi Saeed
LandOfFree
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