High repetition rate, linear, true time optical delay line

Details High repetition rate, linear, true time optical delay line High repetition rate, linear, true time optical delay line

2007-07-03

2007-07-03

Healy, Brian M. (Department: 2883)

Optical waveguides

With optical coupler

Movable coupler

C385S031000, C385S015000, C385S039000, C385S146000, C398S053000, C359S868000, C359S872000, C359S869000, C359S863000

Reexamination Certificate

active

10537626

ABSTRACT:
An optical delay line for use with an optical source including input/output optics optically coupled to the optical source and a curved mirror with a reflective surface that is centered about an evolute curve of the delay line to retro-reflect light traveling along a delay line beam path tangent to the edge of the evolute curve. The input/output optics direct light from the optical source along the delay line beam path and direct delayed light from the delay line beam path out of the optical delay line along an output beam path. The input/output optics and/or the curved mirror rotate about the evolute curve at a selected angular speed. The reflective surface has a curvature based on a parametric curve that is calculated from the evolute curve such that the delay of the delay line varies according to a predetermined function as the input/output optics and/or the curved mirror rotate.

REFERENCES:
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patent: 5109446 (1992-04-01), Kaltschmidt
patent: 5264971 (1993-11-01), Lammers et al.
patent: 5852687 (1998-12-01), Wickham
patent: 7043108 (2006-05-01), Olsen
patent: 2007/0009207 (2007-01-01), Xu et al.
International Search Report for PCT International Application No. PCT/US05/07500 mailed Aug. 24, 2005.

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