US 11,921,365 B2
Isolator, method of manufacturing isolator, electromagnetic wave transmitter, and light transmitter
Hiromichi Yoshikawa, Yokohama (JP); Naoki Matsui, Tokyo (JP); and Tomoya Sugita, Machida (JP)
Assigned to KYOCERA Corporation, Kyoto (JP)
Appl. No. 17/597,806
Filed by KYOCERA Corporation, Kyoto (JP)
PCT Filed Jul. 20, 2020, PCT No. PCT/JP2020/028158
§ 371(c)(1), (2) Date Jan. 24, 2022,
PCT Pub. No. WO2021/020218, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 2019-138296 (JP), filed on Jul. 26, 2019; application No. 2019-138300 (JP), filed on Jul. 26, 2019; application No. 2019-138309 (JP), filed on Jul. 26, 2019; and application No. 2019-138310 (JP), filed on Jul. 26, 2019.
Prior Publication US 2022/0260867 A1, Aug. 18, 2022
Int. Cl. G02F 1/095 (2006.01); H04B 10/50 (2013.01)
CPC G02F 1/0955 (2013.01) [H04B 10/50 (2013.01); H04B 10/501 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An isolator comprising:
a first core and a second core, the first core and the second core extending in a first direction and positioned side by side with a cladding therebetween in a second direction that intersects the first direction;
a nonreciprocal member, the nonreciprocal member in contact with at least a part of the second core while being positioned side by side with the second core in the second direction; and
a magnetic body that generates a magnetic field,
wherein, in a magnetic field generated by the magnetic body in a portion where the nonreciprocal member is positioned, a component in a third direction perpendicular to the first direction and the second direction is greater than any component in directions other than the third direction.