Photonic time-delay beamsteering system using fiber bragg prism

Details Photonic time-delay beamsteering system using fiber bragg prism Photonic time-delay beamsteering system using fiber bragg prism

1997-10-30

2000-09-05

Hellner, Mark

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

Directive

Including a steerable array

342375, H01Q 0322

Patent

active

061149942

ABSTRACT:
A one-laser technique for optical time-delay beamsteering of a microwave phased-array antenna in transmit-and- receive modes. Arrays of reflective, fiber Bragg gratings are employed and a modulated, wavelength-tuned laser excites prism-shaped arrays of chirped or single-frequency gratings deployed inside a set of N parallel fibers. The fiber gratings can be replaced by waveguided gratings within a semiconductor chip for operation at high microwave frequencies.

REFERENCES:
patent: 4717918 (1988-01-01), Finken
patent: 4962382 (1990-10-01), Lee
patent: 5140651 (1992-08-01), Soret et al.
patent: 5461687 (1995-10-01), Brock
patent: 5583516 (1996-12-01), Lembo
patent: 5852687 (1998-12-01), Wickham

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