Light-emitting assembly and optical communication apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsXiaokang Xiao, Yuejing Qin, Ying Guo
Life of this patent
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Abstract
A light-emitting assembly includes a laser, an optical isolator, and a polarization maintaining device. The laser is configured to emit a first optical signal; the polarization maintaining device is configured to receive a second optical signal; and the optical isolator includes a polarizer and an optical rotator. The laser, the polarizer, the optical rotator, and the polarization maintaining device are sequentially arranged, a polarization direction of the polarizer is the same as a polarization direction of the first optical signal, and the optical rotator is configured to deflect the first optical signal into the second optical signal.
Claims18
A light-emitting assembly, comprising:
- a laser configured to emit a first optical signal;
- a polarization maintaining device configured to receive a second optical signal;
- and
- an optical isolator comprising a polarizer and an optical rotator, wherein the laser, the polarizer, the optical rotator, and the polarization maintaining device are sequentially arranged, a polarization direction of the polarizer is the same as a polarization direction of the first optical signal, and the optical rotator is configured to deflect the first optical signal into the second optical signal.
An optical communication apparatus, comprising:
- a board;
- a receive port;
- a transmit port;
- an onboard optical component;
- and
- a light-emitting assembly comprising:
- a laser configured to emit a first optical signal,
- a polarization maintaining device configured to receive a second optical signal, and
- an optical isolator comprising a polarizer and an optical rotator, wherein the laser, the polarizer, the optical rotator, and the polarization maintaining device are sequentially arranged, a polarization direction of the polarizer is the same as a polarization direction of the first optical signal, and the optical rotator is configured to deflect the first optical signal into the second optical signal, wherein
- the receive port, the transmit port, the onboard optical component, and the light-emitting assembly are all connected to the board, and the receive port, the transmit port, and the light-emitting assembly are separately coupled to the onboard optical component.
A method for operating a light-emitting assembly, the light-emitting assembly comprising a laser, an optical isolator, and a polarization maintaining device, the method comprising:
- emitting, by the laser, a first optical signal;
- receiving, by the polarization maintaining device, a second optical signal;
- and
- deflecting, by an optical rotator of the optical isolator, the first optical signal into the second optical signal, wherein
- the optical isolator comprises a polarizer and the optical rotator,
- the laser, the polarizer, the optical rotator, and the polarization maintaining device are sequentially arranged, and
- a polarization direction of the polarizer is the same as a polarization direction of the first optical signal.
Dependencies are inferred from the claim text.