Optical attenuator and manufacturing method for making same

Details Optical attenuator and manufacturing method for making same Optical attenuator and manufacturing method for making same

1988-08-15

1989-12-05

Sikes, William L.

350 9610, 350 9629, 350320, 65 2, 65 42, 65 101, 65 12, G02B 626, C03B 37025

Patent

active

048848590

ABSTRACT:
A simple method of manufacturing optical attenuators comprises heating a part of an optical fiber composed of a core and a cladding to a temperature around the softening point of the materials of the optical fiber and applying a tension and/or a twist to the optical fiber at a predetermined speed to form an optical attenuation area having fine cracks in the heated part of the optical fiber.

REFERENCES:
patent: 4557556 (1985-12-01), Decker, Jr.
patent: 4557557 (1985-12-01), Gleason et al.
patent: 4584464 (1986-04-01), Myer
patent: 4697869 (1987-10-01), So et al.
patent: 4721351 (1988-01-01), Goepfert et al.
patent: 4728170 (1988-03-01), Robertson
patent: 4803353 (1989-02-01), Moorehead
patent: 4804248 (1989-02-01), Bhagavatula

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