S-Z stranded optical cable with optimized short ROL pitch

Details S-Z stranded optical cable with optimized short ROL pitch S-Z stranded optical cable with optimized short ROL pitch

1998-08-26

2000-04-11

Ngo, Hung N.

Optical waveguides

Optical transmission cable

Loose tube type

385112, G02B 644

Patent

active

060496487

ABSTRACT:
Loose tube fiber optic cable containing a core of S-Z stranded strands comprising optical fibers having first and second alternatively repeating first and second sections, and a sheath circumscribing the core. The ROL transition points defined by the junctures of first and second strand sections along the length of the cable have been provided at an optimized reduced distance therebetween that is approximately 1/2 of the longitudinal length of the sheath entry window created during mid-span entry of the loose tube fiber optic cable. Thus, at least one (1) ROL transition point will be located within the sheath entry window during mid-span entry access to the cable, and most suitably either two (2) or three (3) ROL transition points will be located.

REFERENCES:
patent: 4408443 (1983-10-01), Brown et al.
patent: 4828352 (1989-05-01), Kraft
patent: 5703983 (1997-12-01), Beasley, Jr.
patent: 5905834 (1999-05-01), Anderson et al.
Raychem, "AIR FOSC.TM. Aerial Fiber Optic Cable Closure System" (Sep., 1994).
Siecor, "If You're not Using ALTOS.TM. Cable You're Shooting Blanks" (Sep. 9-12, 1996).

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