Four-port circulator with frequency conversion based on nondegenerate three waving mixing Josephson devices

Patent metadata

Field	Value
Publication number	US-10686115-B2
Application number	US-201916245425-A
Country	US
Kind code	B2
Filing date	Jan 11, 2019
Priority date	Apr 18, 2017
Publication date	Jun 16, 2020
Grant date	Jun 16, 2020

Abstract

A technique relates to a superconducting device. A first mixing device has a first mixing port and a second mixing port. A second mixing device has another first mixing port and another second mixing port. The first and second mixing devices are superconducting nondegenerate three-wave mixing devices. The first mixing port and the another first mixing port are configured to couple to a first coupler. The second mixing port and the another second mixing port are configured to couple to a second coupler.

First claim

What is claimed is:

1. A superconducting device comprising:
a first device comprising at least one Josephson junction, the first device having a first port, a second port, and a pump port; and
a second device having another first port, another second port, and another pump port, the first port and the another first port being associated by wave interference, the second port and the another second port being associated by the wave interference, the wave interference being configured based on a difference associated with the pump port and the another pump port.

2. The superconducting device of claim 1 , wherein the first device and the second device are coupled in parallel.

3. The superconducting device of claim 1 , wherein the first port and the another first port are configured to couple to a first coupler.

4. The superconducting device of claim 3 , wherein the second port and the another second port are configured to couple to a second coupler.

5. The superconducting device of claim 1 , wherein the first port of the first device and the another first port of the second device are configured to have a first functionality.

6. The superconducting device of claim 5 , wherein the second port of the first device and the another second port of the second device are configured to have a second functionality.

7. The superconducting device of claim 1 , wherein the second device comprises another at least one Josephson junction.

8. The superconducting device of claim 1 , wherein the first device comprises a first resonator.

9. The superconducting device of claim 8 , wherein the second device comprises a second resonator.

10. The superconducting device of claim 9 , wherein the first and second resonators are configured to interact.

11. A superconducting device comprising:
a first coupler;
a second coupler;
a first device comprising a first part, a second part, and a pump port; and
a second device comprising another first part, another second part, and another pump port, the first part and the another first part being coupled to the first coupler and associated by wave interference, the second part and the another second part being coupled to the second coupler and associated by the wave interference, the wave interference being based on a difference associated with the pump port and the another pump port.

12. The superconducting device of claim 11 , wherein a combination of the first coupler and the second coupler comprises input/output ports.

13. The superconducting device of claim 12 , wherein input of a signal in one of the input/output ports is configured to be blocked from output through another one of the input/output ports according to wave interference.

14. The superconducting device of claim 12 , wherein input of a signal in one of the input/output ports is configured to pass as output through another one of the input/output ports according to wave interference.

15. The superconducting device of claim 11 , wherein a combination of the first coupler, the second coupler, the first device, and the second device are configured to pass a signal or block the signal according to wave interference.

16. The superconducting device of claim 11 , wherein the first part and the another first part have an analogous functionality.

17. The superconducting device of claim 11 , wherein the second part and the another second part have an analogous functionality.

18. The superconducting device of claim 11 , wherein the first coupler and the second coupler are hybrid couplers.

19. The superconducting device of claim 11 , wherein the first device comprises at least one Josephson junction.

20. The superconducting device of claim 11 , wherein the second device comprises at least one Josephson junction.

Assignees

• IBM

Inventors

• Abdo Baleegh

Classifications

• H03D7/005 Primary

  by means of superconductive devices · CPC title

• H10N60/0912

  of Josephson-effect devices · CPC title

• H10N60/805 Primary

  for Josephson-effect devices · CPC title

• H01P5/12

  Coupling devices having more than two ports (H01P5/04 takes precedence) · CPC title

• H01P1/38

  Circulators · CPC title