Optical fiber coupling

Details Optical fiber coupling Optical fiber coupling

1987-08-06

1988-07-05

Sikes, William L.

G02B 638

Patent

active

047550198

ABSTRACT:
To permit operation of the light guide under widely varying temperature conditions, for example varying between -50.degree. C. to +70.degree. C., plug elements (5,7), for example of synthetic rubies or sapphires and retained within a hard metal sleeve (4) are formed, essentially throughout their entire cross-sectional area, with facing matching engagement surfaces. The exit or coupling plug element (5) is formed with a polished surface (15) at the side remote from the entrance plug element (7), the polished surface extending at right angles to the axis of a central duct or channel (9) which retains an optical fiber light guide. The exit or coupling plug element (5) is so positioned in the holding sleeve (4) that the polished surface (15) is located at a projecting portion beyond the terminal end (16) of the sleeve, to define a projecting distance (17). Two couplings are connected together by a housing (20). Even under contraction of the plug elements, which due to their higher temperature, coefficient than of the hard metal sleeve contract more, the facing end surfaces will remain in engagement so that no separation will occur due to a possible premature engagement of the holding sleeves of aligned couplings.

REFERENCES:
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patent: 4183619 (1980-01-01), Makuch
patent: 4220398 (1980-09-01), Dalgoutte
patent: 4519672 (1985-05-01), Rogstadius
patent: 4632505 (1986-12-01), Allsworth

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