Method of and device for aligning an optical fiber with respect

Details Method of and device for aligning an optical fiber with respect Method of and device for aligning an optical fiber with respect

1990-01-25

1991-02-05

Ullah, Akm

350 9620, G02B 632

Patent

active

049899406

ABSTRACT:
The invention relates to a device and method of aligning an optical fibre (4) with respect to the lens (2) of a connector, the optical fibre (4) being positioned such that a beam issuing from the optical fibre (4) and passing through the lens (2) is directed concentrically at a four-quadrant measuring device (8). A very simple method is obtained in that the four-quadrant measuring device (8) is provided with a focussing lens (10) at a distance equal to the focal length, and in that the axial distance between the front face of the optical fibre (4) and the lens (2) of the connector is adjusted such that the sum of the light intensities measured by the four elements (9) of the four-quadrant measuring device (8) has a minimum value.

REFERENCES:
patent: 3938895 (1976-02-01), Bridger et al.
patent: 4452506 (1984-06-01), Reeve et al.

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