US 11,675,141 B2
Optical connector ferrule, optical connector, and composite fiber connecting assembly
Daisuke Komada, Omihachiman (JP); Hiroki Tachibana, Kitami (JP); Ko Matsui, Sendai (JP); and Yuanyuan Guo, Sendai (JP)
Assigned to KYOCERA Corporation, Kyoto (JP); and TOHOKU UNIVERSITY, Miyagi (JP)
Appl. No. 17/270,888
Filed by KYOCERA Corporation, Kyoto (JP); and TOHOKU UNIVERSITY, Sendai (JP)
PCT Filed Aug. 30, 2019, PCT No. PCT/JP2019/034287
§ 371(c)(1), (2) Date Feb. 24, 2021,
PCT Pub. No. WO2020/045669, PCT Pub. Date Mar. 5, 2020.
Claims priority of application No. JP2018-163950 (JP), filed on Aug. 31, 2018.
Prior Publication US 2021/0181434 A1, Jun. 17, 2021
Int. Cl. G02B 6/38 (2006.01)
CPC G02B 6/3882 (2013.01) [G02B 6/3817 (2013.01); G02B 6/3885 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An optical connector ferrule, comprising:
a first ferrule being tubular and having a first end face, a second end face opposite to the first end face, and a first through-hole extending from the first end face to the second end face;
a composite fiber including a first optical fiber and a plurality of electrically conductive signal wires along the first optical fiber, the composite fiber having a first end portion extending to the second end face and placed in the first through-hole; and
a second ferrule including a ferrule body being tubular and a linear portion, the ferrule body having a third end face, a fourth end face opposite to the third end face, and a second through-hole extending from the third end face to the fourth end face, the linear portion extending from the third end face along the second through-hole,
wherein the second end face and the third end face abut each other,
the plurality of electrically conductive signal wires and the linear portion are connected to each other wherein the plurality of electrically conductive signal wires are inside resin which surrounds the optical fiber, such that the plurality of electrically conductive signal wires and the optical fiber are separated, and
wherein an exterior of the second ferrule includes a plurality of grooves which extend axially around the second through-hole and the linear portion is inside each of the plurality of grooves.