Method for forming optical fiber preform

Details Method for forming optical fiber preform Method for forming optical fiber preform

1975-12-24

1976-09-28

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 18, 65 30R, 65 60D, 65DIG7, 350 96WG, 427116, C03B 2304, C03B 3702

Patent

active

039829162

ABSTRACT:
A process for manufacturing preforms from which clad optical fibers having longitudinal, eccentric, azimuthal index inhomogeneities may be drawn. In one embodiment, the known CVD process for making preforms is modified by the use of asymmetric heating to produce circumferentially alternating deposits of doped and undoped glass which act as the fiber core when the preform is subsequently collapsed and drawn into a fiber.

REFERENCES:
patent: 3666348 (1972-05-01), Marcatili
patent: 3687514 (1972-08-01), Miller
patent: 3711262 (1973-01-01), Keck et al.
patent: 3737292 (1973-06-01), Keck et al.
patent: 3737293 (1973-06-01), Maurer
patent: 3932160 (1976-01-01), Camlibel

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