Non-intrusive fibre optic tap

Details Non-intrusive fibre optic tap Non-intrusive fibre optic tap

1989-02-08

1990-02-06

Sikes, William L.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

350 9616, 350 9618, 350 9619, 350 9629, 250227, G02B 626, H01J 516

Patent

active

048984426

ABSTRACT:
A ribbed structure (60a), co-operating with an unribbed surface of a coupling element 64, is employed to introduce microbending in an optical fibre (51) intermediate its two ends with a periodicity which couples the fundamental bound mode of the fibre into a cladding mode from which optical power is tapped into the optical coupling element (64) provided with a conical reflecting surface (63a) for collimating the extracted light. Light injection is achieved by a reciprocal process using a ribbed structure (60b) and a conical reflecting surface 63b.

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patent: 4807954 (1989-02-01), Oyamada et al.
patent: 4834482 (1989-05-01), Campbell et al.

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