Systems, devices and methods for transmitting and receiving signals on an optical network

• US 7,440,699 B1
• Filed: 06/28/2004
• Issued: 10/21/2008
• Est. Priority Date: 06/28/2004
• Status: Active Grant

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Stewart, William L. II, Kim, Kyung K.
• Primary Examiner(s): Chan; Jason
• Assistant Examiner(s): Curs; Nathan M
• Application Number:
  US10/878,593
• Time in Patent Office: 1,576 Days
• Field of Search: 398115-117, 398/171, 398/135
• US Class Current: 398/116
• CPC Class Codes: H04B 10/25756 Bus network topology
• CPC Class Codes: H04B 10/504 using direct modulation

Abstract

Systems, devices and methods for transmitting and receiving signals on an optical network are disclosed. In one aspect, a micro device for connecting an electronic device to an optical transmission system is disclosed. The micro device can comprise optical components for receiving optical signals and converting the optical signals to electrical signals, a phase shifter for controlling the phase of the electrical signals, and an attenuator for controlling power level of the electrical signals, wherein the micro device is of a size having low electromagnetic interference susceptibility and emissivity.

Claims

1. A micro device for connecting an electronic device to an optical transmission system, comprising:

optical components for receiving optical signals from the optical transmission system and converting the optical signals to electrical signals or for receiving electrical signals from the electronic device and converting the electrical signals to optical signals or both;

a phase shifter for controlling the phase of the electrical signals, the phase shifter being operably located between the optical components and the electronic device; and

an attenuator for controlling power level of the electrical signals, the attenuator being operably located between the optical components and the electronic device,

wherein the micro device is of a size wherein each dimension is less than 10 millimeters

and wherein the optical components of the micro device receive wave division multiplexed control signals from an optical bus and health monitoring signals from one or more couplers in the micro device.

2. A micro device for connecting an electronic device to an optical transmission system, comprising:

a limiter for receiving electrical signals from the electronic device;

a phase shifter for controlling the phase of the electrical signals, the phase shifter being operably located between the optical transmission system and the electronic device;

an attenuator for controlling power level of the electrical signals, the attenuator being operably located between the optical transmission system and the electronic device; and

optical components for receiving the electrical signals from the electronic device and converting the electrical signals to optical signals and transmitting the optical signals to the optical transmission system or for receiving optical signals from the optical transmission system and converting the optical signals to electrical signals or both;

wherein the optical components of the micro device receive wave division multiplexed control signals from an optical bus and health monitoring signals from one or more couplers in the micro device, and

wherein the micro device is of a size wherein each dimension is less than 10 millimeters.

3. The micro device of claim 2, wherein the electronic device is an RF antenna.

4. The micro device of claim 3, wherein the micro device is mounted in an RF antenna connector.

5. The micro device of claim 2, wherein the micro device receives photonics power from a photonics power supply, wherein the photonics power at least in part powers the micro device.

6. The micro device of claim 2, further comprising a drive amplifier and a low noise amplifier each of the drive amplifier and the low noise amplifier being operably located between the optical transmission system and the electronic device.

7. The micro device of claim 2, wherein the micro device is a one millimeter by one-millimeter by three-millimeters module.

8. An optical network, comprising:

an optical bus;

a plurality of optical bus interface modules connected to the optical bus, wherein each optical bus interface module inputs optical signals on the optical bus and outputs optical signals from the optical bus;

an array of micro devices where each micro device receives RF electrical signals from an RF antenna and converts the RF electrical signals to optical signals, transmits the optical signals to the optical bus via an optical bus interface module, receives photonics power from a photonics power supply, wherein the photonics power at least in part powers the device, and receives wave division multiplexed control signals from the optical bus via an optical bus interface module, and wherein each micro device is of a size wherein each dimension is less than 10 millimeters.

9. The network of claim 8, wherein optical components of each micro device receive optical signals and convert the optical signals to RF electrical signals.

10. The network of claim 9, wherein each micro device further comprises a limiter for receiving RF electrical signals from the RF antenna and transmit/receive switches for switching the micro device between a transmit mode and a receive mode.

11. The network of claim 8, wherein each micro device is mounted in an RF antenna connector.

12. The network of claim 8, wherein each micro device is a one millimeter by one-millimeter by three-millimeters module.