Integrated high-extinction ratio unbalanced Mach Zehnder interferometers and integrated Mach Zehnder interferometers incorporating coil resonators
AssigneeThe Regents of the University of California
InventorsKaikai Liu, Jiawei Wang, Andrei Isichenko, Nitesh Chauhan, Daniel J. Blumenthal
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Abstract
A device may include a first waveguide with an optical input at a first port. A device may include a second waveguide. A device may include a first coupler that optically couples the first waveguide to the second waveguide at a first position. A device may include a waveguide delay arm. A device may include a second coupler that optically couples the first waveguide to the second waveguide at a second position, the second position different from the first position.
Claims18
A photonic integrated circuit forming part of a Mach Zehnder interferometer, the photonic integrated circuit comprising:
- a first waveguide with an optical input at a first port and comprising a waveguide delay arm;
- a second waveguide;
- a first coupler that optically couples the first waveguide to the second waveguide at a first position;
- a waveguide coil resonator;
- and
- a second coupler that optically couples the first waveguide to the second waveguide at a second position, the second position different from the first position.
A photonic integrated circuit forming part of a Mach Zehnder interferometer, the photonic integrated circuit comprising:
- a resonator, wherein the resonator is a coil resonator;
- a first waveguide comprising an optical input at a first port and a delay arm;
- a second waveguide, the second waveguide coupled to the resonator at a first position;
- a first coupler that optically couples the first waveguide to the second waveguide at a second position;
- and
- a second coupler that optically couples the first waveguide to the second waveguide at a third position,
- wherein the waveguide delay arm is positioned between the first coupler and the second coupler.
Dependencies are inferred from the claim text.