Data center

Patent metadata

Field	Value
Publication number	US-10509260-B2
Application number	US-201916241380-A
Country	US
Kind code	B2
Filing date	Jan 7, 2019
Priority date	Aug 22, 2016
Publication date	Dec 17, 2019
Grant date	Dec 17, 2019

Abstract

A data center includes a wavelength source, a first optical component, a first communications device, and a second communications device. The wavelength source is configured to generate an N-wavelength laser beam. The first port of the first optical component is configured to receive an M-wavelength laser beam from the wavelength source. The second port of the first optical component is configured to send the M-wavelength laser beam to the first communications device. The M-wavelength laser beam includes at least a first-wavelength laser beam. The second port of the first optical component is further configured to receive a modulated first optical signal from the first communications device, the modulated first optical signal is obtained after the first communications device modulates a service signal onto the first-wavelength laser beam. The third port of the first optical component is configured to send the modulated first optical signal to the second communications device.

First claim

What is claimed is:

1. A data center, comprising:
a wavelength source, configured to generate an N-wavelength laser beam, wherein N is an integer greater than or equal to 1;
a first optical component, comprising a first port, a second port, and a third port;
a first communications device, comprising a first server or a first switch; and
a second communications device, comprising a second server or a second switch;
wherein the first port of the first optical component is configured to receive an M-wavelength laser beam from the wavelength source, wherein M is an integer greater than or equal to 1 and less than or equal to N;
wherein the second port of the first optical component is configured to send the M-wavelength laser beam to the first communications device, wherein the M-wavelength laser beam comprises a first-wavelength laser beam;
wherein the second port of the first optical component is further configured to receive a modulated first optical signal from the first communications device, wherein the modulated first optical signal is obtained by the first communications device by modulating a first service signal onto the first-wavelength laser beam; and
wherein the third port of the first optical component is configured to send the modulated first optical signal to the second communications device.

2. The data center according to claim 1 , wherein the first communications device further comprises a first port, wherein the first port of the first communications device is configured to receive the M-wavelength laser beam from the first optical component, and the first port of the first communications device is further configured to send the modulated first optical signal to the first optical component.

3. The data center according to claim 1 , wherein the first communications device comprises a second optical component and the first server, and the second optical component comprises a first port and a second port;
wherein the first port of the second optical component is configured to receive the M-wavelength laser beam from the first optical component;
wherein the second port of the second optical component is configured to send the first-wavelength laser beam to the first server;
wherein the first server is configured to modulate the first service signal onto the first-wavelength laser beam to obtain the modulated first optical signal, and to send the modulated first optical signal to the second optical component;
wherein the second port of the second optical component is further configured to receive the modulated first optical signal from the first server; and
wherein the first port of the second optical component is further configured to send the modulated first optical signal to the first optical component.

4. The data center according to claim 3 , wherein the second optical component is an arrayed waveguide grating.

5. The data center according to claim 3 , wherein the first server comprises a first port, and wherein the first port of the first server is configured to:
receive the first-wavelength laser beam from the second optical component; and
send the modulated first optical signal to the second optical component.

6. The data center according to claim 3 , wherein the first server comprises a third optical component and a first modulator, and the third optical component comprises a first port, a second port, and a third port;
wherein the first port of the third optical component is configured to receive the first-wavelength laser beam from the second optical component;
wherein the second port of the third optical component is configured to send the first-wavelength laser beam to the first modulator;
wherein the first modulator is configured to modulate the first service signal onto the first-wavelength laser beam to obtain the modulated first optical signal, and to send the modulated first optical signal to the third optical component;
wherein the third port of the third optical component is configured to receive the modulated first optical signal from the first modulator; and
wherein the first port of the third optical component is further configured to send the modulated first optical signal to the second optical component.

7. The data center according to claim 1 , wherein the first communications device comprises a fourth optical component and the first switch, and the fourth optical component comprises a first port and a second port;
wherein the first port of the fourth optical component is configured to receive the M-wavelength laser beam from the first optical component;
wherein the second port of the fourth optical component is configured to send the first-wavelength laser beam to the first switch;
wherein the first switch is configured to modulate the first service signal onto the first-wavelength laser beam, to obtain the modulated first optical signal, and send the modulated first optical signal to the fourth optical component;
wherein the second port of the fourth optical component is further configured to receive the modulated first optical signal from the first switch; and
wherein the first port of the fourth optical component is further configured to send the modulated first optical signal to the first optical component.

8. The data center according to claim 7 , wherein the first switch comprises a first port, wherein the first port of the first switch is configured to receive the first-wavelength laser beam from the fourth optical component, and the first port of the first switch is further configured to send the modulated first optical signal to the fourth optical component.

9. The data center according to claim 7 , wherein the first switch comprises a fifth optical component and a second modulator, and the fifth optical component comprises a first port, a second port, and a third port;
wherein the first port of the fifth optical component is configured to receive the first-wavelength laser beam from the fourth optical component;
wherein the second port of the fifth optical component is configured to send the first-wavelength laser beam to the second modulator;
wherein the second modulator is configured to modulate the first service signal onto the first-wavelength laser beam to obtain the modulated first optical signal, and to send the modulated first optical signal to the fifth optical component;
wherein the third port of the fifth optical component is configured to receive the modulated first optical signal from the second modulator; and
wherein the first port of the fifth optical component is further configured to send the modulated first optical signal to the fourth optical component.

10. The data center according to claim 1 , further comprising a sixth optical component, wherein the sixth optical component comprises a first port, a second port, and a third port;
wherein the first port of the sixth optical component is configured to receive an O-wavelength laser beam from the wavelength source, wherein 0 is an integer greater than or equal to 1 and less than or equal to N;
wherein the second port of the sixth optical component is configured to send the O-wavelength laser beam to the second communications device, wherein the O-wavelength laser beam comprises the first-wavelength laser beam;
wherein the second communications device is configured to receive the O-wavelength laser beam, and to modulate a second service signal onto the first-wavelength laser beam to obtain a modulated second optical signal, and send the modulated second optical signal to the second port of the sixth optical component; and
wherein the third port of the sixth optical component is configured to send the modulated second optical signal to the first communications devic

Assignees

• Huawei Tech Co Ltd

Inventors

• Xiao Xinhua
• Shen Xiao Andy
• Wang Yan

Classifications

• H04J14/0267

  Optical signaling or routing · CPC title

• H04Q11/0003

  Details · CPC title

• H04Q2011/0016

  using wavelength multiplexing or demultiplexing · CPC title

• H04Q11/0005

  Switch and router aspects · CPC title

• G02F1/0353 Primary

  involving an electro-optic TE-TM mode conversion · CPC title