Inventors:
J. Thomas Chapin - Alpharetta GA
Addison G. Hardee - Dunwoody GA
Charles M. Leshe - Lawrenceville GA
Bob J. Overton - Lawrenceville GA
John W. Shea - Chamblee GA
Carl R. Taylor - Lawrenceville GA
John M. Turnipseed - Lilburn GA
Assignee:
AT&T Bell Laboratories - Murray Hill NJ
International Classification:
G02B 644
Abstract:
An optical fiber transmission medium (30) ) includes optical fiber (21) provided with a coating system (31) typically including two layers each of a different coating material. An inner layer (32) of a first coating material is called the primary coating and an outer layer is termed the secondary. In order to achieve desired performance characteristics, performance is related to properties of a coating system. The coating materials have well defined moduli and the second coating material has an elongation which is substantially less than in prior secondary coating materials. Adhesion levels which are optimized rather than maximized are substantially stable with respect to time. Curing of the coating materials may be accomplished simultaneously or in tandem with the application separately of the coating materials.