Patent ID: 11953742
Assignee: TDK CORPORATION
Field: Optics (Instruments)
Classification: CPC G  H | IPC G

Claim 0:
1. An optical device comprising:
at least one magnetic element including a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer;
a laser diode; and
a waveguide, wherein
the waveguide includes at least one input waveguide optically connected to the laser diode and an output waveguide connected to the input waveguide,
at least some of light propagating in at least one of the input waveguide and the output waveguide is applied to the magnetic element, and
at least part of the waveguide is between the laser diode and the magnetic element along a direction of propagation of light emitted from the laser diode.