A new liquid crystal field effect electro-optic device is described. Light transmission induced by voltage pulses across two electrodes is modulated or gated by voltage on a third electrode. The three-terminal gating characteristics are applicable to scanning and multiplexing arrays of devices for displays or light valves. A novel enhancement mode is also demonstrated.
Gain saturation is introduced into the laser-coupled rate equations. Numerical and analytical solutions show considerable damping of relaxation oscillations for small amounts of saturation.
Devices are demonstrated for modulating light in optical waveguides using nematic liquid crystals. 100% modulation and response times of 35 μsec are achieved. Coupling of light into waveguide modes of a liquid layer is demonstrated.
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