Optical fiber connecting means

Details Optical fiber connecting means Optical fiber connecting means

1988-08-15

1989-08-15

Lee, John D.

350 962, G02B 638

Patent

active

048568660

ABSTRACT:
Disclosed are aligned plug optical fiber connectors that can accommodate larger differences in plug diameter and/or a wider range of plug diameters than is possible in prior art connectors, resulting inter alia in increased economy. The first of these advantages is attained through the use of bilaterally decoupled plug alignment means, i.e., means in which radial deformation of one half of the alignment means does not result in analogous deformation of the other half. A simple example of bilaterally decoupled alignment means is an alignment sleeve with a centrally located lateral slit. The second of the above advantages is attained through use of limited contact bilaterally decoupled alignment means, i.e., bilaterally decoupled alignment means shaped such that only a limited portion of the plug surface is in contact with the alignment means. A simple example of such alignment means is a transversely split alignment sleeve whose bore has roughly ellipsoidal cross-section. A preferred embodiment of the inventive connector comprises two cylindrical glass plugs, a glass alignment block of L-shaped cross-section, and a bifurcated metal spring clip that separately urges each plug against the two reference surfaces formed by the arms of the alignment block. The presence of a recessed portion of one of the reference surfaces is optional and can facilitate rotational tuning of the fiber connector.

REFERENCES:
patent: 4250898 (1980-06-01), Matthews et al.
patent: 4274708 (1981-06-01), Cocito et al.
patent: 4353619 (1982-10-01), Parr
patent: 4541685 (1985-09-01), Anderson
patent: 4545644 (1986-10-01), DeVeau et al.

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