Optical fibre terminations

Details Optical fibre terminations Optical fibre terminations

1977-10-18

1981-04-14

Levy, Stewart J.

G02B 514

Patent

active

042616425

ABSTRACT:
A modification of the hot crimp technique described in U.S. application Ser. No. 701,240 filed 30th June 1976. In that case a bundle of fibres was inserted into a glass sleeve and the sleeve and fibres were thrust into a hot conical bore to compress the sleeve and fibres to remove interstitial dead space.
In an incidental feature of that technique, the compressed bundle is maintained concentric with the outer sleeve surface, and in fact, with the outer surface of a metal sleeve which may provide the conical bore. This feature is adapted for the present invention in which a single fibre is inserted into a close fitting glass sleeve through a tapered lead-in ferrule, the sleeve and ferrule are thrust through an outer metal sleeve having a conical end so that the glass sleeve and fibre are compressed concentrically. The assembly then provides an accurately concentric single fibre termination pin.

REFERENCES:
patent: 3912362 (1975-10-01), Hudson
patent: 4116655 (1978-09-01), Lewis
J. N. Stallard, W. E. Steel, "Stuffing of Optical Fibers", IBM Technical Disclosure Bulletin, vol. 9, No. 11, Apr. 1967, p. 1581.

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