Phase modulating device

Details Phase modulating device Phase modulating device

1996-04-22

1999-02-02

Epps, Georgia

Optical: systems and elements

Optical modulator

Light wave temporal modulation

G02B 2600

Patent

active

058673016

ABSTRACT:
A surface deformation type wavefront phase modulator (36) utilizes a transmissive deformable conductor (30) affixed to a single layer of transmissive deformable media (24). Media (24) is affixed to a substrate (12). A dielectric reflector (18) is affixed to the substrate (12). Conductor (30) is opposite the substrate (12). Electrostatic forces are applied to the conductor (30) to vary the deformation of media (24) and conductor (30) to phase modulate a wavefront which is incident on conductor (30), traverses media 24 and is reflected by reflector (18) to again traverse the media (24). Several advantages are inherent in my invention. Utilizing a transmissive deformable conductor (30) avoids the compromises involving reflectivity and conductor thickness which has plagued prior art devices.

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