Optical waveguides – Optical fiber waveguide with cladding
Patent
1991-12-19
1993-01-12
Lee, John D.
Optical waveguides
Optical fiber waveguide with cladding
244 312, 244 316, 385134, G02B 616
Patent
active
051796120
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).
REFERENCES:
patent: 4995698 (1991-02-01), Myers
patent: 5005930 (1991-04-01), Schotter
patent: 5029960 (1991-07-01), Hulderman et al.
patent: 5042907 (1991-08-01), Bell et al.
Barnes Richard B.
Rochester James R.
Brown C. D.
Denson-Low W. K.
Heald R. M.
Heartney Phan T.
Hughes Aircraft Company
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