Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1992-10-01
1996-01-30
Lopez, F. Daniel
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359295, 348759, G02F 129
Patent
active
054885051
ABSTRACT:
An electrostatic shutter mosaic modulator contains a substrate, said substrate contains a first face and a second face. A plurality of first electrodes are arranged in a matrix of p rows an q columns. Each first electrode is affixed to the substrate by a suitable means. Each first electrode is overlapped by a respective deformable reflective conductor. Each conductor is affixed to the first face by a suitable means. Every conductor in each column is electrically connected by a respective column buss. Each first electrode is electrically connected to a respective third switch terminal of a respective switching element by a suitable feedthrough means. Each switching element is affixed by a suitable means to the second face. Each first electrode overlapps the respective switching element. A suitable means is provided to control the potential difference between each first electrode and the respective conductor, in accordance with an information bearing signal. The potential difference influences a deformation in the respective conductor, thereby enabling a wavefront incident on the modulator to be phase modulated in accordance with the information bearing signal.
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