Monitoring fiber bend loss characteristics during manufacture

Details Monitoring fiber bend loss characteristics during manufacture Monitoring fiber bend loss characteristics during manufacture

1988-04-27

1990-02-20

Thurlow, Jeffery

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 2, 65 29, 264 15, 264 402, 264 407, 356 731, 425135, 425174, C03B 3707, C03B 3702, C03B 37028, C03B 37025

Patent

active

049023276

ABSTRACT:
Forming an optical fiber so as to have a relatively constant bend loss characteristic includes apparatus for continuously bending the optical fiber downstream from a preform from which it is drawn and continuously detecting light withdrawn from the fiber at the bend so created to determine the fiber bend loss characteristic, the fiber bend loss characteristic being maintained constant by using feedback control to vary a drawing speed of the fiber and hence a diameter of a core of the fiber.

REFERENCES:
patent: 4081258 (1978-03-01), Goell et al.
patent: 4163370 (1979-08-01), Kurth
patent: 4227806 (1980-10-01), Watkins
patent: 4236904 (1980-12-01), Lazay
patent: 4280827 (1981-07-01), Murphy et al.
patent: 4343637 (1982-08-01), Shofner et al.
patent: 4557550 (1985-12-01), Beals et al.
patent: 4636070 (1987-01-01), Ide

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