Optical waveguides – Accessories – Attenuator
Patent
1991-04-03
1992-06-30
Lee, John D.
Optical waveguides
Accessories
Attenuator
385114, G02B 640
Patent
active
051270846
ABSTRACT:
A variable light attenuator for use with multiple-fiber ribbons consisting of optical fiber elements. The attenuator consists of movable and fixed ferrule assemblies, each of which is fabricated by inserting a plurality of optical fiber elements arranged in line with equal pitch into a plurality of through holes arranged in line with equal pitch in a block of the substrate, and by polishing the end of the substrate together with the ends of the plurality of optical fiber elements so that the ends are finished to be eight degrees or more inclined with respect to a plane perpendicular to the optical axis of the movable and fixed ferrule assemblies. The movable ferrule assembly is shifted toward the sidewall of the substrate in a direction perpendicular to the optical axis of the optical fiber elements by means of a micrometer spindle or by means of a screw rod connected to a miniature motor so that the optical power passing through the optical fiber elements is concurrenlty attenuated or cut by changing the common area shared by the optical fiber elements of the movable and fixed ferrule assemblies on the substrate.
REFERENCES:
patent: 4987946 (1991-02-01), Williams et al.
patent: 5024505 (1991-06-01), Junji et al.
patent: 5035482 (1991-07-01), Berge et al.
patent: 5066094 (1991-11-01), Takahashi
Heartney Phan T.
Lee John D.
Seikoh Giken Co. Ltd.
LandOfFree
Variable light attenuator of multiple-fiber ribbons does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable light attenuator of multiple-fiber ribbons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable light attenuator of multiple-fiber ribbons will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1871366