Wide-range and high-resolution variable optical delay

Details Wide-range and high-resolution variable optical delay Wide-range and high-resolution variable optical delay

2005-10-25

2005-10-25

Spector, David N. (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S250000

Reexamination Certificate

active

06958843

ABSTRACT:
Variable optical delay (VOD) systems are provided that include optical switching techniques, and optical manifold techniques, and/or index switching techniques. In certain embodiments, liquid crystal cells are used to impart fine delay in a VOD system. Medium delay may be provided with index switching systems. Course delay may be provided with total-internal-reflection or polarization based optical manifold systems, or micro-fluidic based optical manifold systems. These fine, medium and course delays may be integrated in a single VOD system to provide a wide range and high resolution delay.

REFERENCES:
patent: 5978125 (1999-11-01), Yao

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