Patent ID: 11960132
Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical fiber cable comprising:
an optical fiber;
a tight buffer layer that surrounds the optical fiber;
a strengthening element that surrounds the tight buffer layer;
an inner jacket that surrounds the strengthening element, the inner jacket comprising a first material having a first coefficient of thermal expansion and a first Shore D hardness, the first coefficient of thermal expansion being no more than 20 ppm/° C.; and
an outer jacket that surrounds the inner jacket, the outer jacket comprising a second material having a second coefficient of thermal expansion and a second Shore D hardness, the second Shore D hardness being at least 40, wherein the first material is different from the second material;
wherein the first coefficient of thermal expansion is less than the second coefficient of thermal expansion and the first Shore D hardness is less than the second Shore D hardness.