Optical fiber canister with ablative coating

Abstract

An optical fiber payout canister (36) comprises a bobbin (42) upon which an optical fiber (34) is wound. A shroud (50) overlies the bobbin (42), and a layer (54) of an ablative material is coated onto at least a portion of the inside wall (48) of the shroud (50) adjacent to the bobbin (42), so that the optical fiber (34) may contact the ablative material (54) during payout. Desirably, the ablative material (54) has a hardness equal to or less than that of the buffer layer of the optical fiber (34). In one embodiment, the ablative material (54) has a composition similar to that of the polymer buffer layer, such as an urethane acrylate. The ablative material (54) removes energy from the optical fiber during payout, and in particular reduces the circumferential component of the energy, permitting the optical fiber (34) to be dispensed through a dispensing opening (58) in an end wall (60) of the shroud (50).

Dependencies are inferred from the claim text.