Reciprocating variable optical attenuator filter

Details Reciprocating variable optical attenuator filter Reciprocating variable optical attenuator filter

1984-08-16

1987-10-27

Lee, John

350 9620, G02B 626

Patent

active

047025492

ABSTRACT:
A simple variable optical attenuator or the like suitable for printed circuit board mounting has an optical filter slab positionable between the arc-rounded aligned ends of two optical fibres. The filter slab is mounted on the wiper carrying reciprocating part of an adjustable potentiometer. The resistance value corresponds to the position of the filter slab, i.e. to the attenuation or other optical index as the case may be, once the unit has been calibrated.

REFERENCES:
patent: 3910677 (1975-10-01), Becker et al.
patent: 4591231 (1986-05-01), Kaiser et al.

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