Photonic interconnect system

• US 20080112665A1
• Filed: 01/11/2008
• Published: 05/15/2008
• Est. Priority Date: 10/11/2003
• Status: Active Grant

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: Philip Kuekes, Raymond Beausoleil, R Williams, Sean Barrett, Timothy Spiller, William Munro
• Inventors: Williams, R., Beausoleil, Raymond, Spiller, Timothy, Munro, William, Kuekes, Philip, Barrett, Sean
• Granted Patent: US 7,657,137 B2
• Time in Patent Office: Days
• US Class Current: 385/14
• CPC Class Codes: B82Y 20/00 Nanooptics, e.g. quantum optics or photonic crystals
• CPC Class Codes: G02B 6/12007 forming wavelength selective elements, e.g. multiplexer, demultiplexer
• CPC Class Codes: G02B 6/1225 comprising photonic band-gap structures or photonic lattices
• CPC Class Codes: G02B 6/43 Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections
• CPC Class Codes: G02F 2202/32 Photonic crystals
• CPC Class Codes: G02F 2203/585 Add/drop devices
• CPC Class Codes: H04B 10/801 using optical interconnects, e.g. light coupled isolators, circuit board interconnections

Abstract

A photonic interconnect system avoids high capacitance electric interconnects by using optical signals to communicate data between devices. The system can provide massively parallel information output by mapping logical addresses to frequency bands, so that modulation of a selected frequency band can encode information for a specific location corresponding to the logical address. Wavelength-specific directional couplers, modulators, and detectors for the photonic interconnect system can be efficiently fabricated at defects in a photonic bandgap crystal. The interconnect system can be used for both classical and quantum information processing.

Claims

1. A device comprising:

a waveguide for an optical signal;

a plurality of drop filters positioned to respectively extract a plurality of frequency components from an optical signal in the waveguide; and

a plurality of mosaics, each mosaic containing one or more tiles and an interface coupled to a corresponding one of the drop filters, wherein the interface directs an information signal base on the frequency component that the corresponding drop filter extracts from the waveguide.

2. The device of claim 1, further comprising a detector that generates an electrical signal indicating a modulation of the frequency component that the corresponding drop filter extracts from the waveguide.

3. The device of claim 1, wherein each tile comprises memory.

4. The device of claim 3, wherein each tile comprises moletronic memory.

5. The device of claim 3, wherein each tile comprises quantum memory.

6. The device of claim 1, wherein each tile comprises logic.

7. The device of claim 6, wherein each tile comprises molecular logic.

8. The device of claim 6, wherein each tile comprises quantum logic.

9. The device of claim 1, wherein each tile comprises a sensor.

10. The device of claim 9, wherein each tile comprises a molecular sensor.

11. The device of claim 9, wherein each tile comprise a quantum sensor.

12. The device of claim 1, wherein each tile comprises a computational core in a multicore processor chip.

13. The device of claim 1, wherein each tile comprises a computational core in a quantum processor.

14. The device of claim 1, wherein each tile comprises a device for embodying quantum information.

15. The device of claim 14, wherein the quantum information is selected from a group consisting of a qubit, a qudit, and a qunit.

16. The device of claim 14, wherein each tile comprises a quantum dot.

17. The device of claim 14, wherein the information signal comprises the frequency component that the corresponding drop filter extracts from the waveguide.