Patent ID: 8469604

Claim:
A tape-like optical fiber, comprising: single-layer coated optical fibers disposed in parallel, each of the single-layer coated optical fibers comprising an optical bare fiber including a core and a clad formed around the core, and a single coating layer provided around an outer periphery of the optical bare fiber; an inner coating layer provided around an outer periphery of the single-layer coated optical fibers disposed in parallel, the inner coating layer contacting with the single coating layer; and a collective coating layer comprising an outer coating layer formed around an outer side of the inner coating layer, wherein an outer diameter of each of the single-layer coated optical fibers is the same as an arrangement pitch of optical coupling objects, wherein the single coating layer has a Young modulus El, the inner coating layer has a Young modulus E 2 , and the outer coating layer has a Young modulus E 3 , and wherein E 2 <El and E 2 <E 3 are established.