Method of forming an optical fiber

Details Method of forming an optical fiber Method of forming an optical fiber

1996-09-16

1997-04-15

Pianalto, Bernard D.

Coating processes

Direct application of electrical, magnetic, wave, or...

Pretreatment of substrate or post-treatment of coated substrate

427128, 427129, 427131, 427132, 4271632, 427165, 427178, 427299, 427404, 4274072, 427598, H01F 100

Patent

active

056207530

ABSTRACT:
An optical fiber is releasably held in coil or skein form by a magnetized in film coating on the fiber. Adjacent convolutions are held together by a magnetic field to prevent unintended unravelling of the coil, but the fiber can be rapidly played out at high speed without rupture and with a constant release tension force. The magnetic field has a radial and axial component relative to the coil cylinder. A magnetizing apparatus is disclosed for magnetizing the film. A sensor feedback loop can dynamically adjust the reel-out drag force to dampen vibration modes during reel out which can cause tangle.

REFERENCES:
patent: 4950049 (1990-08-01), Darsey et al.
patent: 5179613 (1993-01-01), Cronk

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