Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1996-02-05
1997-08-19
Ben, Loha
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359291, 359295, 25022723, G02B 2600
Patent
active
056594186
ABSTRACT:
An improved micromechanical modulator that incorporates a mechanical transmission line for damping membrane vibration is disclosed. The modulator comprises a transmission line mechanically communicating with a vertically-movable membrane for receiving an optical signal. The membrane is supported over a substrate. Under the action of bias, the membrane moves toward the substrate, which causes a change in an optical property of the modulator. The transmission line receives and dissipates a sufficient amount of the energy developed in the membrane as it moves to prevent the membrane from vibrating. In one configuration, the modulator incorporates two strip-line transmission lines. In another configuration, the modulator incorporates two clamped-plate transmission lines.
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Ben Loha
Lucent Technologies - Inc.
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