Optical interconnection system and method

Patent metadata

Field	Value
Publication number	US-9832553-B2
Application number	US-201615189746-A
Country	US
Kind code	B2
Filing date	Jun 22, 2016
Priority date	Dec 23, 2013
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

An optical interconnection system and method are provided. The system includes two or more basic components that are stacked and interconnected. The basic component includes an optical network layer and an electrical layer, where in each basic component, the optical network layer is electrically interconnected with the electrical layer, and the optical network layer of each basic component is optically interconnected with an optical network layer of an adjacent basic component, and through optical interconnection in three-dimensional space, a limitation on a quantity of stacked electrical layers is reduced, and efficiency of signal transmission is increased.

First claim

What is claimed is:

1. An optical interconnection system, comprising:
two or more basic components that are interconnected,
wherein each basic component comprises an optical network layer and an electrical layer,
wherein the optical network layer of the basic component comprises an optical transceiver and an optical switch,
wherein the optical transceiver comprises an optical receiver,
wherein the optical switch comprises an arbitration logic device and an inter-layer optical switch,
wherein the optical network layer of the basic component is electrically interconnected with the electrical layer,
wherein the optical network layer of the basic component is optically interconnected with an optical network layer of another basic component,
wherein an arbitration logic device of a first basic component is configured to:
receive a first optical signal;
transmit the first optical signal to an optical receiver of the first basic component when the destination of the first optical signal is the first basic component; and
transmit the first optical signal to an inter-layer optical switch of the first basic component when the destination of the first optical signal is not the first basic component,

wherein the inter-layer optical switch of the first basic component is configured to transmit the first optical signal to an optical network layer of an adjacent basic component of the first basic component when the inter-layer optical switch of the first basic component receive the first optical signal transmitted by the arbitration logic device of the first basic component, and
wherein the optical receiver of the first basic component is configured to:
convert the first optical signal into a first electrical signal when the optical receiver of the first basic component receive the first optical signal transmitted by the arbitration logic device of the first basic component; and
transmit the first electrical signal to an electrical layer of the first basic component.

2. The system according to claim 1 , wherein the arbitration logic device of the first basic component is configured to receive the first optical signal that is forwarded by an inter-layer optical switch of the adjacent basic component of the first basic component.

3. The system according to claim 1 , wherein the optical transceiver of the basic component further comprises an optical transmitter, wherein an optical transmitter of the first basic component is configured to:
receive the first electrical signal of the electrical layer of the first basic component;
convert the first electrical signal into the first optical signal; and
transmit the first optical signal to the arbitration logic device, and
wherein the arbitration logic device of the first basic component is configured to receive the first optical signal that is transmitted by the optical transmitter of the first basic component.

4. The system according to claim 1 , wherein the electrical layer comprises N subcomponents, wherein the optical receiver of the basic component comprises N optical receiving subcomponents, wherein the N optical receiving subcomponents are in a one-to-one correspondence with the N subcomponents of the electrical layer, wherein the N is an integer greater than 2, wherein the optical switch of the basic component further comprises an intra-layer optical switch of the basic component, wherein the arbitration logic device of the first basic component is configured to transmit the first optical signal to an intra-layer optical switch of the first basic component when the arbitration logic device determines that the destination of the first optical signal is the first basic component, and wherein the intra-layer optical switch of the first basic component is configured to:
parse the first optical signal to know a subcomponent which is the destination of the first optical signal; and
transmit the first optical signal to an optical receiving subcomponent corresponding to the subcomponent which is the destination of the first optical signal.

5. The system according to claim 1 , wherein the electrical layer comprises N subcomponents, wherein the optical receiver of the basic component comprises N optical receiving subcomponents, wherein the N optical receiving subcomponents are in a one-to-one correspondence with the N subcomponents of the electrical layer, wherein the N is an integer equal to 2, wherein the optical switch of the basic component further comprises an intra-layer optical switch of the basic component, wherein the arbitration logic device of the first basic component is configured to transmit the first optical signal to an intra-layer optical switch of the first basic component when the arbitration logic device determines that the destination of the first optical signal is the first basic component, and wherein the intra-layer optical switch of the first basic component is configured to:
parse the first optical signal to know a subcomponent which is the destination of the first optical signal; and
transmit the first optical signal to an optical receiving subcomponent corresponding to the subcomponent which is the destination of the first optical signal.

6. The system according to claim 1 , wherein the inter-layer optical switch of the first basic component is an optical reflector.

7. The system according to claim 1 , wherein the arbitration logic device of the first basic component comprises an optical micro-ring resonator.

8. The system according to claim 1 , wherein the arbitration logic device of the first basic component comprises an array waveguide grating.

9. The system according to claim 1 , wherein the arbitration logic device of the first basic component comprises a grating coupler.

10. The system according to claim 1 , wherein an optical network layer of the first basic component is optically interconnected with the optical network layer of the adjacent basic component of the first basic component through free space.

11. The system according to claim 1 , wherein the optical network layer of the first basic component is optically interconnected with the optical network layer of the adjacent basic component of the first basic component using a through silicon optical wave guide (TSOWG).

12. An optical interconnection system, wherein the system comprises:
two or more basic components that are interconnected,
wherein each basic component comprises an optical network layer and an electrical layer,
wherein the optical network layer is electrically interconnected with the electrical layer,
wherein the optical network layer of the basic component is optically interconnected with an optical network layer of another basic component,
wherein an optical network layer of a first basic component is configured to:
receive a first optical signal;
determine, according to a band of the first optical signal, whether a destination of the first optical signal is the first basic component;
transmit the first optical signal to an optical network layer of an adjacent basic component of the first basic component when the destination of the first optical signal is not the first basic component;
convert the first optical signal into a first electrical signal when the destination of the first optical signal is the first basic component; and
transmit the first electrical signal to an electrical layer of the first basic component.

13. The system according to claim 12 , wherein the optical network layer of the first basic component is further configured to receive the first optical signal that is forwarded by the optical network layer of the adjacent basic component of the first basic component.

Assignees

• Huawei Tech Co Ltd

Inventors

• Zhang Jiayong
• Hao Qinfen
• Liu yaoda

Classifications

• H10W90/00

  Package configurations · CPC title

• H10W90/295

  optical coupling · CPC title

• G02B6/4274 Primary

  Electrical aspects (G02B6/4263 and G02B6/4265 take precedence) · CPC title

• G02B6/3588

  of the processed beams, i.e. controlling during switching of orientation, alignment, or beam propagation properties such as intensity, size or shape · CPC title

• G02B6/428

  containing printed circuit boards [PCB] · CPC title