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US 11,916,600 B2Granted
Receiver optical sub-assembly, combo bi-directional optical sub- assembly, combo optical module, OLT, and PON system
AssigneeHuawei Technologies Co., Ltd.
InventorsShu Li, Rixiang Cao, Zelin Wang, Sulin Yang
Life of this patent
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Abstract
A receiver optical sub-assembly, a combo bi-directional optical sub-assembly, a combo optical module, an optical line terminal, and a passive optical network system, where the receiver optical sub-assembly includes a first transistor-outline can, where a light incident hole is disposed on the first transistor-outline can, and where a first demultiplexer, a first optical receiver, a second optical receiver, and an optical lens combination are packaged in the first transistor-outline can.
Claims19
A receiver optical sub-assembly comprising:
- a first demultiplexer disposed on a direction in which light enters the receiver optical sub-assembly and configured to:
- transmit a first optical signal of a first wavelength through a body of the first demultiplexer;
- and
- reflect a second optical signal of a second wavelength from a surface of the first demultiplexer;
- a first optical receiver disposed on a transmission optical path of the first demultiplexer and configured to receive the first optical signal of the first wavelength;
- an optical lens combination disposed on a reflection optical path of the first demultiplexer and configured to:
- receive the second optical signal of the second wavelength reflected by the first demultiplexer;
- and
- guide the second optical signal of the second wavelength;
- a second optical receiver configured to receive the second optical signal of the second wavelength from the optical lens combination;
- a header;
- and
- a cap disposed on the header,
- wherein the first demultiplexer, the first optical receiver, the second optical receiver, and the optical lens combination are disposed inside the cap, and
- wherein the first optical receiver and the second optical receiver are coupled to the header.
12 more elements
A combo bi-directional optical sub-assembly, comprising:
- a housing;
- an optical transmission channel disposed in the housing;
- a second demultiplexer disposed on the optical transmission channel, wherein an optical receive port, an optical transmit port, and an optical fiber connection port are in communication with the optical transmission channel and disposed in the housing;
- and
- a receiver optical sub-assembly comprising:
- a first demultiplexer disposed on a direction in which light enters the receiver optical sub-assembly and configured to:
- transmit a first optical signal of a first wavelength through a body of the first demultiplexer;
- and
- reflect a second optical signal of a second wavelength from a surface of the first demultiplexer;
- a first optical receiver disposed on a transmission optical path of the first demultiplexer and configured to receive the first optical signal of the first wavelength;
- an optical lens combination disposed on a reflection optical path of the first demultiplexer and configured to:
- receive the second optical signal of the second wavelength reflected by the first demultiplexer;
- and
- guide the second optical signal of the second wavelength;
- a second optical receiver configured to receive the second optical signal of the second wavelength from the optical lens combination;
- a header;
- and
- a cap disposed on the header,
- wherein the first demultiplexer, the first optical receiver, the second optical receiver, and the optical lens combination are disposed inside the cap, and
- wherein the first optical receiver and the second optical receiver are coupled to the header.
17 more elements
An optical line terminal (OLT), comprising:
- a receiver optical sub-assembly, wherein the receiver optical sub-assembly comprises:
- a first demultiplexer disposed on a direction in which light enters the receiver optical sub-assembly and configured to:
- transmit a first optical signal of a first wavelength through a body of the first demultiplexer;
- and
- reflect a second optical signal of a second wavelength from a surface of the first demultiplexer;
- a first optical receiver disposed on a transmission optical path of the first demultiplexer and configured to receive the first optical signal of the first wavelength;
- an optical lens combination disposed on a reflection optical path of the first demultiplexer and configured to:
- receive the second optical signal of the second wavelength reflected by the first demultiplexer;
- and
- guide the second optical signal of the second wavelength;
- a second optical receiver configured to receive the second optical signal of the second wavelength from the optical lens combination;
- a header;
- and
- a cap disposed on the header,
- wherein the first demultiplexer, the first optical receiver, the second optical receiver, and the optical lens combination are disposed inside the cap, and
- wherein the first optical receiver and the second optical receiver are coupled to the header.
13 more elements
Dependencies are inferred from the claim text.