Method and apparatus for providing power to waveguide systems

• US 10,371,889 B1
• Filed: 11/29/2018
• Issued: 08/06/2019
• Est. Priority Date: 11/29/2018
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Barzegar, Farhad, Vannucci, Giovanni, Henry, Paul Shala, Willis, III, Thomas M., Gerszberg, Irwin, Bennett, Robert, Barnickel, Donald J.
• Primary Examiner(s): Mooney, Michael P
• Application Number:
  US16/204,114
• Time in Patent Office: 250 Days
• Field of Search: 385 24, 385 49- 50, 385 88- 92, 385123, 398141, 398182, 375258
• CPC Class Codes: G02B 2006/12147 Coupler
• CPC Class Codes: G02B 2006/12164 Multiplexing; Demultiplexing
• CPC Class Codes: G02B 6/02 Optical fibres with cladding with or without a coating
• CPC Class Codes: G02B 6/12007 forming wavelength selective elements, e.g. multiplexer, demultiplexer
• CPC Class Codes: G02B 6/28 having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
• CPC Class Codes: G02B 6/30 for use between fibre and thin-film device
• CPC Class Codes: G02B 6/4201 Packages, e.g. shape, construction, internal or external details
• CPC Class Codes: G02B 6/4246 Bidirectionally operating package structures
• CPC Class Codes: H04B 10/25 Arrangements specific to fibre transmission
• CPC Class Codes: H04B 10/807 Optical power feeding, i.e. transmitting power using an optical signal
• CPC Class Codes: H04B 3/56 Circuits for coupling, blocking, or by-passing of signals
• CPC Class Codes: H04J 14/02 Wavelength-division multiplex systems
• CPC Class Codes: H04J 14/0227 Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation

Abstract

Aspects of the subject disclosure may include, a system for receiving first optical power signals via an optical fiber connected with a light source of a network device, converting the first optical power signals to electrical energy utilizing an optical power converter where the electrical energy is utilized as power by the system, and transmitting or receiving electromagnetic waves that propagate along a transmission medium without requiring an electrical return path, and wherein the electromagnetic waves convey data. Other embodiments are disclosed.

Claims

1. A waveguide system, comprising:

an optical power converter;

a coupler;

a processing system including a processor; and

a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations comprising;

receiving, via an optical fiber, first optical power signals, wherein the optical fiber is connected with a light source of a network device;

converting, by the optical power converter, the first optical power signals to electrical energy, wherein the electrical energy is utilized as power by the waveguide system;

receiving, via the optical fiber, second optical communication signals from the network device, wherein the second optical communication signals convey data; and

transmitting, via the coupler, electromagnetic waves that are generated according to the second optical communication signals, wherein the electromagnetic waves propagate along a transmission medium without requiring an electrical return path, and wherein the electromagnetic waves convey the data.

2. The waveguide system of claim 1, wherein the network device is mounted on a utility structure supporting the transmission medium, wherein the network device comprises one or more modems, and wherein the transmission medium comprises a power line of a power grid.

3. The waveguide system of claim 2, wherein the first optical power signals and the second optical communication signals have different wavelengths.

4. The waveguide system of claim 1, wherein the second optical communication signals conform to an Ethernet protocol, and wherein the network device comprises an Ethernet switch.

5. The waveguide system of claim 1, wherein the transmission medium comprises a power line of a power grid, and wherein the waveguide system does not obtain any power via a direct electrical connection with the power line.

6. The waveguide system of claim 1, wherein the transmission medium comprises a power line of a power grid, and wherein the waveguide system does not obtain any power via an inductive coupling with the power line.

7. The waveguide system of claim 1, further comprising a plurality of components that includes the optical power converter, the coupler, the processing system, and the memory, wherein the electrical energy converted from the first optical power signals powers only a subset of the plurality of components.

8. The waveguide system of claim 1, further comprising an energy storage device, wherein the energy storage device comprises a supercapacitor, a battery, or a combination thereof.

9. The waveguide system of claim 1, further comprising an inductive coupler, wherein the transmission medium conducts current, and wherein energy is obtained by the inductive coupler via an inductive coupling with the transmission medium.

10. A waveguide system, comprising:

an optical power converter;

a coupler;

a processing system including a processor; and

a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations comprising;

receiving, via an optical fiber, first optical power signals, wherein the optical fiber is connected with a light source of a network device;

converting, by the optical power converter, the first optical power signals to electrical energy, wherein the electrical energy is utilized as power by the waveguide system;

receiving, via the coupler, electromagnetic waves that convey data, wherein the electromagnetic waves propagate along a transmission medium without requiring an electrical return path; and

transmitting signals to the network device, wherein the signals convey the data.

11. The waveguide system of claim 10, wherein the network device and a wireless access point device are mounted on a utility structure supporting the transmission medium, wherein the signals comprise second optical communication signals that are transmitted to the network device via the optical fiber, wherein the network device comprises an Ethernet switch, and wherein the Ethernet switch provides the data to the wireless access point device.

12. A method, comprising:

transmitting, by a network device via a first optical fiber, first optical power signals to a first waveguide system, wherein the first optical fiber is connected with a light source of the network device, wherein the first waveguide system converts the first optical power signals to electrical energy to be utilized as power by the first waveguide system; and

transmitting, by the network device via the first optical fiber, second optical communication signals to the first waveguide system, wherein the second optical communication signals convey first data, wherein the first waveguide system generates first electromagnetic waves according to the second optical communication signals, wherein the first electromagnetic waves propagate along a transmission medium without requiring an electrical return path, and wherein the first electromagnetic waves convey the first data.

13. The method of claim 12, further comprising:

transmitting, by the network device via a second optical fiber, third optical power signals to a second waveguide system, wherein the second optical fiber is connected with the light source of the network device, wherein the second waveguide system converts the third optical power signals to electrical energy to be utilized as power by the second waveguide system; and

transmitting, by the network device via the second optical fiber, fourth optical communication signals to the second waveguide system, wherein the fourth optical communication signals convey second data, wherein the second waveguide system generates second electromagnetic waves according to the second optical communication signals, wherein the second electromagnetic waves propagate along the transmission medium without requiring the electrical return path, and wherein the second electromagnetic waves convey the second data.

14. The method of claim 13, wherein the first waveguide system is coupled to a first span of the transmission medium, and wherein the second waveguide system is coupled to a second span of the transmission medium.

15. The method of claim 14, wherein the first electromagnetic waves propagate along the first span, wherein second electromagnetic waves propagate along the second span, and wherein the first electromagnetic waves propagating along the first span are substantially isolated from the second electromagnetic waves propagating along the second span.

16. The method of claim 13, wherein the network device is mounted on a utility structure supporting the transmission medium, wherein the network device comprises one or more modems, and wherein the transmission medium comprises a power line of a power grid.

17. The method of claim 13, wherein the first optical power signals and the second optical communication signals have different wavelengths, and wherein the third optical power signals and the fourth optical communication signals have different wavelengths.

18. The method of claim 12, comprising:

receiving, by the network device via the first optical fiber, third optical communication signals from the first waveguide system, wherein the third optical communication signals convey second data, wherein the second and third optical communication signals conform to an Ethernet protocol.

19. The method of claim 12, wherein the transmission medium comprises a power line of a power grid, and wherein the first waveguide system does not obtain any power via a direct electrical connection with the power line.

20. The method of claim 12, wherein the transmission medium comprises a power line of a power grid, and wherein the first waveguide system does not obtain any power via an inductive coupling with the power line.