Optical communication cable

Details Optical communication cable Optical communication cable

G - Physics

02

B

88/97

G02B 1/00 (2006.01) G02B 5/14 (1980.01) G02B 5/16 (1980.01)

Patent

CA 1144793

A B S T R A C T In an optical communication cable for the transmission of light, the or each optical fibre is so housed that it is capable of limited movement relative to the cable when the cable is flexed, thereby reducing risk of fracture of the optical fibre. The optical fibre is loosely housed in, and has a diameter less than the diameter of, a bore in an extruded elongate body of insulating material, which body has a transverse cross-sectional shape of elongate form. The bore has a smooth continuous boundary wall and is of uniform transverse cross-section throughout its length. To provide reinforcement for the cable, two separate elongate reinforcing members are embedded in the extruded body throughout its length and are arranged on opposite sides of and parallel to the bore. Because limited movement of the optical fibre can take place within the cable, there is substantially no risk of fracture of or damage to the optical fibre during manufacture and installation of the cable and, as compared with optical communication cables hitherto proposed, the optical cable is simple and inexpensive because no unnecessary material is employed.

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