Miniature fiberoptic bend device and method

Details Miniature fiberoptic bend device and method Miniature fiberoptic bend device and method

1990-06-15

1992-08-11

Ullah, Akm E.

Optical waveguides

With optical coupler

Input/output coupler

385123, 385 31, 385 43, G02B 626

Patent

active

051386763

ABSTRACT:
Bends in optical fibers can be miniaturized by reducing the diameter of a section of the fiber in the region where bending is desired to a condition in which the optical properties of the fiber have reduced bend-loss sensitivity. In one aspect of the invention, radii of curvature less than 100 microns (.mu.) and very low optical power loss are achieved. A fiber with such specially reduced diameter may also be twisted about its longitudinal axis to a greater degree than a comparable length of larger diameter fiber. Any optical fiber can be processed by redrawing and/or chemical means to allow such bending or twisting. Bend or twist tolerant regions thus formed may be packaged separately or built integrally into a wide range of fiber optic components, networks, or systems with significant space savings, added performance features and mechanical flexibility.

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