Optical fiber alignment and retention device

Details Optical fiber alignment and retention device Optical fiber alignment and retention device

1985-01-07

1987-05-19

Lee, John

350 9618, G02B 636

Patent

active

046662383

ABSTRACT:
A fiber alignment and retention device having an optical lens with a forwardly directed curved surface molded to a rearward extension having a vee-shaped groove for supporting an optical fiber. An abutment means comprises a vertical stop for positioning the fiber at a focal point of the lens and also includes an abutment gap containing an index matching adhesive for reducing refraction and attenuation of a transmitted optical signal. A heat sensitive shrink sleeve secures the fiber within the vee-shaped groove such that a terminal end of the fiber is aligned with the focal point of the lens. A clamp or spring finger may replace the shrink sleeve, and a first alternative embodiment includes a holding means having a cylindrical shaped rearward extension with longitudinal cutaway sections providing a spring tension for securing the fiber. A second alternative embodiment includes a lens with a rearwardly directed radiused surface for guiding and retaining the fiber. A third alternative embodiment includes a modified abutment means for terminating the optical fiber.

REFERENCES:
patent: 4078852 (1978-03-01), Lebduska
patent: 4129932 (1978-12-01), Stancati
patent: 4196032 (1980-04-01), Eggleston
patent: 4421383 (1983-12-01), Carlsen
patent: 4534616 (1985-08-01), Bowen et al.
L. A. Price, II and J. R. Statkevicus "Fiber-Optic Male Connector" IBM Technical Disclosure Bulletin, vol. 22, No. 10 (Mar. 1980) p. 4475.

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