Microbend optical fiber tapped delay line

Details Microbend optical fiber tapped delay line Microbend optical fiber tapped delay line

1981-11-19

1985-12-10

Sikes, William L.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250227, 350 9619, G02B 5172

Patent

active

045575525

ABSTRACT:
A fiber optic tapped delay line is disclosed in which a number of bends in a single optical fiber are formed to obtain taps of an optical signal traveling in that fiber at each bend location. Light removed at the bends is directed to a focusing lens, which focuses the light onto a photodetector acting as a summing device to produce a frequency-filtered output of the light signal traveling in the fiber. The device's response as a transversal filter is enhanced by weighting the taps either by use of a cylindrical lens, or by selectively masking a portion of light emitted by selected individual taps.

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