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US 5,493,627 AGranted
Waveguide pack
AssigneeSippican, Inc.
InventorsJ. J. Pan, Richard W. Lancaster, Wesley Libby, Michael Manning, William Pauplis
Life of this patent
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Abstract
A waveguide pack for transmission of information that includes a length of a dielectric waveguide wound into a free-standing coil with an inner diameter of less than three inches and coated with a binder suited to maintaining the waveguide in the coil, and a method for preparing the pack.
Claims16
A waveguide pack for transmission of information, said pack comprising
- a length of dielectric, unreinforced, single mode fiber said fiber being coated with a binder and said fiber wound into a coil having multiple layers positioned at varying radius distances from the cylindrical axis of the coil and having an inner diameter of less than three inches,
- said binder having a tack level permitting said fiber to be unwound at velocities less than 100 knots as a single strand from said coil, and
- said binder having a setting rate and tack level suited to permit said coil to relax, after being wound, into a state in which microbending losses due to stresses imposed on said fiber during winding are reduced to the extent that the optical transmission of the wound fiber in said free-standing configuration is substantially the same as the optical transmission of the fiber before it is wound.
Dependencies are inferred from the claim text.