US 2026/0032364 A1Published application

Wavelength conversion system and wavelength conversion method

AssigneesPeng Cheng Laboratory, Huawei Technologies Co., Ltd.

InventorsYuping Wu, Jianfeng Chen

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Abstract

Embodiments of this application provide a wavelength conversion system and a wavelength conversion method. Specifically, the wavelength conversion system includes a first wavelength conversion module, a second wavelength conversion module, and a third wavelength conversion module. The first wavelength conversion module and the third wavelength conversion module are configured to perform cross-band wavelength conversion on input optical signals, and the second wavelength conversion module is configured to perform intra-band wavelength conversion on an input optical signal. In different scenarios, at least one wavelength conversion module may be selected from the foregoing three wavelength conversion modules according to actual requirements, to perform wavelength conversion, so that both intra-band conversion of any wavelength and cross-band conversion of any wavelength can be implemented. Therefore, the wavelength conversion system provided in this application can implement conversion of any wavelength in a wide spectrum range, to meet a requirement of a future wide-spectrum communication system.

Claims20

Dependent claims

A wavelength conversion system, comprising:

a first optical switch;
a second optical switch;
a first wavelength conversion module;
a second wavelength conversion module;
and
a third wavelength conversion module;
wherein the first optical switch comprises a first input port, a second input port, a first output port, and a second output port;
wherein the second optical switch comprises a third input port, a fourth input port, a third output port, and a fourth output port;
wherein an original optical signal is input to the first input port, the second input port is connected to the fourth output port, the first output port is connected to an input end of the first wavelength conversion module, the second output port is connected to an input end of the second wavelength conversion module, the third input port is connected to an output end of the first wavelength conversion module, the fourth input port is connected to an output end of the second wavelength conversion module, the third output port is connected to an input end of the third wavelength conversion module, and a target optical signal is output from an output end of the third wavelength conversion module;
wherein the first optical switch is configured to control a connection between the input port and the output port of the first optical switch;
wherein the second optical switch is configured to control a connection between the input port and the output port of the second optical switch;
wherein the first wavelength conversion module is configured to perform cross-band wavelength conversion on an optical signal from the first optical switch;
wherein the second wavelength conversion module is configured to perform intra-band wavelength conversion on the optical signal from the first optical switch;
and
wherein the third wavelength conversion module is configured to perform cross-band wavelength conversion on an optical signal from the second optical switch.

12 more elements

A wavelength conversion method, wherein the wavelength conversion method is applied to a wavelength conversion system that includes a first optical switch, a second optical switch, a first wavelength conversion module, a second wavelength conversion module, and a third wavelength conversion module, wherein the first optical switch comprises a first input port, a second input port, a first output port, and a second output port, and wherein the second optical switch comprises a third input port, a fourth input port, a third output port, and a fourth output port, wherein the method comprises:

controlling a connection between the first and second input ports and the first and second output ports of the first optical switch by using the first optical switch;
controlling a connection between the third and fourth input ports and the third and fourth output ports of the second optical switch by using the second optical switch, wherein an original optical signal is input to the first input port, the second input port is connected to the fourth output port, the first output port is connected to an input end of the first wavelength conversion module, the second output port is connected to an input end of the second wavelength conversion module, the third input port is connected to an output end of the first wavelength conversion module, the fourth input port is connected to an output end of the second wavelength conversion module, the third output port is connected to an input end of the third wavelength conversion module, and a target optical signal is output from an output end of the third wavelength conversion module;
performing, by using the first wavelength conversion module, cross-band wavelength conversion on an optical signal from the first optical switch;
performing, by using the second wavelength conversion module, intra-band wavelength conversion on the optical signal from the first optical switch;
and
performing, by using the third wavelength conversion module, cross-band wavelength conversion on an optical signal from the second optical switch.

3 more elements

Dependencies are inferred from the claim text.