US 11,747,577 B2
Waveguide connection structure, waveguide chip, connector, and method of manufacturing waveguide connection component, and waveguide connecting method
Norio Sato, Tokyo (JP); and Kota Shikama, Tokyo (JP)
Assigned to Nippon Telegraph and Telephone Corporation, Tokyo (JP)
Appl. No. 17/607,326
Filed by Nippon Telegraph and Telephone Corporation, Tokyo (JP)
PCT Filed May 22, 2019, PCT No. PCT/JP2019/020254
§ 371(c)(1), (2) Date Oct. 28, 2021,
PCT Pub. No. WO2020/235041, PCT Pub. Date Nov. 26, 2020.
Prior Publication US 2022/0206233 A1, Jun. 30, 2022
Int. Cl. H04B 10/00 (2013.01); G02B 6/42 (2006.01)
CPC G02B 6/4219 (2013.01) [G02B 6/4257 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A waveguide connection structure, comprising of
a waveguide chip comprising a waveguide and
a connector comprising a groove dug in a thickness direction,
wherein the waveguide chip comprises a first concave-convex portion and the connector comprises a second concave-convex portion,
wherein the first concave-convex portion extends continuously from a top surface of the waveguide chip to a bottom surface of the waveguide chip, the first concave-convex portion being located at the top surface of the waveguide chip and the bottom surface of the waveguide chip,
wherein the second concave-convex portion extends continuously from a top surface of the connector to a bottom surface of the connector, the second concave-convex portion being located at the top surface of the connector and the bottom surface of the connector,
wherein the groove is disposed in the top surface of the connector,
wherein the groove is configured to hold a fiber cable, and
wherein the first concave-convex portion and the second concave-convex portion fit into each such that the waveguide chip and the connector are adjacent to each other on a same plane.