G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 6/44 (2006.01)
Patent
CA 2053596
An optical fiber cable (20) ideally suited for aerial distribution use, for example, includes in a preferred embodiment at least one bundle (23) of optical fibers (25-25). The at least one bundle is disposed in a tubular member (30) which is made of a plastic material suitable for use in a relatively wide temperature range and which is enclosed by a sheath system (32). A predetermined excess length of fiber is caused to be disposed in the tubular member. The excess length of each fiber is such that it is sufficient to avoid undue strains on the fiber as the cable core is exposed to the elements and to forces imparted during handling such as during installation. On the other hand, the excess fiber length must not be so great as to result in undue curvature of the fiber or excessive interactive engagement of the fiber with an inner wall of the tubular member. As a result of the magnitude of the excess length of the opical fiber, the requirements which must be met by the sheath system are not as demanding as for prior art cables, thereby resulting in a significant reduction in cable diameter and weight.
Panuska Andrew John
Patel Parbhubhai Dahyabhai
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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