Modulators – Amplitude modulator – Nonlinear device controlled by modulating signal
Patent
1987-03-26
1988-08-16
Tarcza, Thomas H.
Modulators
Amplitude modulator
Nonlinear device controlled by modulating signal
342376, 350 9614, G02B 5174, H01S 302
Patent
active
047647388
ABSTRACT:
An agile beam control for optical phased array wherein a great multiplicity of substantially identical wave guides are employed, each of which comprises a plurality of electrodes along the length thereof, and wherein electrical voltages are applied to such electrodes in a predetermined pattern so as to effect the necessary control without creating a totally unworkable arrangement of different voltages and wiring arrangements which are intolerable. More specifically, a binary voltage distribution is provided to such electrodes, whereby alternate ones of the electrodes in a first electrode position of such wave guides are interconnected and have a given voltage applied thereto. The remaining electrodes at that position are energized with the same magnitude of voltage but of reverse polarity. Each successive electrode position of such wave guides are arranged in blocks of adjacent electrodes wherein each block comprises twice the number of electrodes in each block of the adjacent electrode position closest to said first electrode position. Alternate blocks of electrodes are connected together and voltage is applied to each block in accordance with the number of electrodes in the respective blocks, with alternate blocks having reverse polarity.
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D. L. Fried Associates, Inc.
Hellner Mark
Nienow Harvey C.
Tarcza Thomas H.
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