Time delay device for optical signals

Details Time delay device for optical signals Time delay device for optical signals

1997-03-25

1998-10-13

Bovernick, Rodney B.

Optical waveguides

With optical coupler

Particular coupling function

359124, 359140, G02B 626

Patent

active

058224769

ABSTRACT:
A time delay device for an optical signal wherein an optical frequency comb is generated by a comb generation device. The optical frequency comb consists of a plurality of discrete and temporally spaced optical channels or carriers. The separation of the channels is dictated by the shifting frequency applied to the comb generation device and the temporal spacing is defined by the length of fiber used so that a time delay is created for each traverse of the fiber loop by the optical frequency comb. A filter connected to the comb generation device is used for tuning to a particular frequency or channel in the optical comb to obtain an optical signal having a desired time delay.

REFERENCES:
patent: 5101291 (1992-03-01), Jopson
patent: 5153933 (1992-10-01), Smith et al.
patent: 5663822 (1997-09-01), Fee

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