Optical module with stress compensated ferrule-clip assembly

Details Optical module with stress compensated ferrule-clip assembly Optical module with stress compensated ferrule-clip assembly

1998-04-01

1999-10-05

Palmer, Phan

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

385 90, 385 92, 385 94, G02B 636

Patent

active

059636955

ABSTRACT:
An optical module that compensates for a stress induced displacement is realized by employing asymmetric ferrule and clip assemblies. In one embodiment, the optical module includes a ferrule and clip assembly having posts or vertical members joined thereto with welds positioned along the longitudinal or center axes of the posts. Importantly, however, the effective axis of rotation about which one of the welds rotates under an applied axial displacement is offset along the longitudinal axis. This offset causes the welds to rotate asymmetrically with respect to the rotational axes which are orthogonal to the stress induced displacement, and is advantageously used to compensate for any stress induced displacement of the fiber that is quadratic in nature. In another embodiment, the optical module includes an asymmetric ferrule and clip assembly wherein at least one weld is offset along from the post's longitudinal or center axis, breaking the left-right symmetry of the assembly. Likewise, the welds rotate asymmetrically with respect to the axes orthogonal to the stress induced displacement. This latter rotation is used to compensate for any stress induced displacement, but one that is linear and not quadratic in nature.

REFERENCES:
patent: 4752109 (1988-06-01), Gordon et al.
patent: 5111522 (1992-05-01), Chaoui et al.
patent: 5793915 (1998-08-01), Joyce
patent: 5854869 (1998-12-01), Joyce
W.B. Joyce et al., "Alignment of Gaussian Beams," Applied Optics, vol. 23 No. 23, Dec. 1, 1984, pp. 4187-4196.

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