High signal to noise ratio optical signal processing system

Details High signal to noise ratio optical signal processing system High signal to noise ratio optical signal processing system

1992-09-25

1995-03-21

Issing, Gregory C.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

342368, H01Q 322

Patent

active

054000386

ABSTRACT:
An optical signal processing system includes a number of optical time delay units to generate differentially time-delayed optical signals. Each optical time delay unit includes at least an in put polarizing beam splitter (PBS) system having an input system Thompson prism and an output PBS system including an output Thompson prism. Each Thompson prism has a high extinction ratio and is positioned to act as a polarizing beam splitter, providing a high signal to noise ratio optical signal processing system. Selectively polarized light beams are deflected by the polarizing beam splitters onto predetermined paths that cause the respective light beams to be differentially time delayed dependent on the path that they follow through the optical signal processing system.

REFERENCES:
patent: 5048030 (1991-09-01), Hiiro
patent: 5117239 (1992-05-01), Riza
patent: 5187487 (1993-02-01), Riza
patent: 5191339 (1993-03-01), Riza
patent: 5223911 (1993-06-01), Suchoski, Jr. et al.
patent: 5231405 (1993-07-01), Riza
patent: 5274385 (1993-12-01), Riza

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