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AssigneeFurukawa Electric Co., Ltd.
InventorsHiroki Tanaka, Yutaka Hoshino, Hirotaka Watanabe, Yoshihiro Arashitani, Kenji Yokomizo, Tomohiro Ishimura
Estimating the term…
An optical fiber ribbon is intermittently connected in a length direction by an intermittent connection which includes a polyol having a weight-average molecular weight of 3000 to 4000 in a specific amount relative to the entire intermittent connection and which has Young's modulus at 23° C. within a specific range. When collectively unitizing optical fiber ribbons to form an optical fiber cable, an optical fiber ribbon is formed which maintains advantages of the optical fiber ribbon and which prevents cracks of the intermittent connection and detachment of the intermittent connection from a colored optical fiber core when the cable is subjected to repetitive ironing.
An optical fiber ribbon comprising colored optical fiber cores arranged in parallel, wherein each of the colored optical fiber cores is formed with at least two cladding layers whose outermost layer is colored and which are formed around an optical fiber to cover the optical fiber, and the adjacent colored optical fiber cores are intermittently connected to each other both in a length direction and in a width direction,
Dependencies are inferred from the claim text.