Isolator, light source apparatus, optical transceiver, optical switch, optical amplifier, and data center
AssigneeKYOCERA Corporation
InventorsNaoki MATSUI, Hiromichi YOSHIKAWA, Tomoya SUGITA
Life of this patent
Estimating the term…
Abstract
An isolator includes a first waveguide with a linear shape and a second waveguide with an annular shape on a substrate including a substrate surface, the first waveguide being positioned along the substrate surface. The first waveguide and the second waveguide each include a core and a cladding. The first waveguide includes a first end, a second end, and a port at each of the first end and the second end for input and output of electromagnetic waves. The core of the second waveguide includes a non-reciprocal member in at least a portion of a cross-section intersecting a direction in which the second waveguide extends.
Claims27
An isolator comprising:
- a first waveguide with a linear shape positioned on a substrate surface of a substrate, and a second waveguide with an annular shape positioned adjacent the first waveguide, wherein
- the first waveguide and the second waveguide each include a core and a cladding,
- the first waveguide includes a first end, a second end, and a port at each of the first end and the second end for input and output of electromagnetic waves, and
- the core of the second waveguide includes a non-reciprocal member in at least a portion of a cross-section intersecting a direction in which the second waveguide extends.
-6. (canceled)
(canceled)
(canceled)
(canceled)
An isolator comprising:
- a first waveguide including a first end, a second end, and a port at each of the first end and the second end for input and output of electromagnetic waves;
- and
- a second waveguide with an annular shape positioned along the first waveguide, wherein
- the first waveguide and the second waveguide are coupled so that, at any operating frequency, a coupling coefficient when electromagnetic waves inputted from the second end propagate towards the first end is greater than a coupling coefficient when electromagnetic waves inputted from the first end propagate towards the second end.
-23. (canceled)
(canceled)
(canceled)
Dependencies are inferred from the claim text.