US 11,054,583 B2
Optical fiber alignment device with self-healing refractive index-matching gel
Richard J. Drapeau, Victoria, MN (US); Gary William Adams, Holly Springs, NC (US); and Steven C. Zimmel, Minneapolis, MN (US)
Assigned to CommScope Technologies LLC, Hickory, NC (US)
Appl. No. 16/620,215
Filed by COMMSCOPE TECHNOLOGIES LLC, Hickory, NC (US)
PCT Filed Jun. 6, 2018, PCT No. PCT/US2018/036323
§ 371(c)(1), (2) Date Dec. 6, 2019,
PCT Pub. No. WO2018/226872, PCT Pub. Date Dec. 13, 2018.
Claims priority of provisional application 62/515,942, filed on Jun. 6, 2017.
Prior Publication US 2020/0116947 A1, Apr. 16, 2020
Int. Cl. G02B 6/38 (2006.01); C08G 77/00 (2006.01); C08L 83/04 (2006.01)
CPC G02B 6/382 (2013.01) [C08G 77/80 (2013.01); C08L 83/04 (2013.01); G02B 6/3809 (2013.01); G02B 6/3839 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An optical fiber alignment system comprising:
an alignment device defining a fiber insertion axis extending between first and second ends of the alignment device, the alignment device also defining a fiber alignment region positioned along the fiber insertion axis; and
a cured refractive index-matching gel composition positioned within the fiber alignment region, wherein an optical fiber to be aligned penetrates through the gel, wherein the cured refractive index-matching gel composition comprises
a crosslinked polysiloxane, and
a nonreactive polysiloxane diluent,
wherein the nonreactive polysiloxane diluent comprises a cyclosiloxane having at least one phenyl substituent, optionally wherein the diluent is selected from the group consisting of a diphenyl cyclotrisiloxane (D3), triphenyl cyclotrisiloxane (D3), diphenyl cyclotetrasiloxane (D4), tetraphenyl cyclotetrasiloxane (D4), hexaphenyl cyclotetrasiloxane (D4), diphenyl cyclopentasiloxane (D5), tetraphenyl cyclopentasiloxane (D5), hexaphenyl cyclopentasiloxane (D5), diphenyl cyclohexasiloxane (D6), tetraphenyl cyclohexasiloxane (D6), hexaphenyl cyclohexasiloxane (D6), diphenyl cycloheptasiloxane (D7), tetra phenyl cycloheptasiloxane (D7), and hexaphenyl cycloheptasiloxane (D7).