US 11,886,009 B2
Coating fusion spliced optical fibers and subsequent processing methods thereof
Anil Bastola, Fort Worth, TX (US); Wei Liu, Sterling, TX (US); Randy LaRue McClure, Corning, NY (US); Chad Charles Terwilliger, Lindley, NY (US); Elizabeth Tran, Painted Post, NY (US); Chanh Cuong Vo, Fort Worth, TX (US); and Qi Wu, Painted Post, NY (US)
Assigned to Corning Research & Development Corporation, Corning, NY (US)
Filed by CORNING RESEARCH & DEVELOPMENT CORPORATION, Corning, NY (US)
Filed on Sep. 22, 2021, as Appl. No. 17/481,626.
Claims priority of provisional application 63/086,325, filed on Oct. 1, 2020.
Prior Publication US 2022/0107462 A1, Apr. 7, 2022
Int. Cl. G02B 6/255 (2006.01); C03C 25/105 (2018.01); C03C 25/26 (2018.01)
CPC G02B 6/2558 (2013.01) [C03C 25/105 (2013.01); C03C 25/26 (2013.01); G02B 6/2551 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A fiber optic cable assembly comprising:
first and second optical fibers each including a pre-coated section and a stripped section;
a fusion splice including a splice joint joining ends of the stripped sections of the first and second optical fibers; and
a polymeric overcoating extending over the stripped section of each of the first and the second optical fibers, the splice joint, and at least a portion of the pre-coated section of each of the first and the second optical fibers;
wherein the polymeric overcoating has an elongation at break of greater than 100% as measured by ASTM D638;
wherein the polymeric overcoating has a UV curing time of between 1 second and 1 minute at a temperature of about 25° C.; and
wherein the polymeric overcoating has a viscosity of between 10,000 centipoise (cP) and 50,000 cP as measured by DSTM502.