Back to results
US 11,184,088 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
Estimating the term…
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.
Claims20
A receiver optical sub-assembly comprising:
- a first transistor-outline can, wherein a light incident hole is disposed on the first transistor-outline can,
- wherein a first demultiplexer, a first optical receiver, a second optical receiver, and an optical lens combination are packaged in the first transistor-outline can,
- wherein light enters the first demultiplexer through the light incident hole,
- wherein the first demultiplexer is configured to transmit an optical signal of a first wavelength and reflect a second optical signal of a second wavelength,
- wherein the first optical receiver is disposed on a transmission optical path of the first demultiplexer,
- wherein the first optical receiver is configured to receive the optical signal of the first wavelength,
- wherein the optical lens combination is disposed on a reflection optical path of the first demultiplexer,
- wherein the optical lens combination is configured to guide, to the second optical receiver, the second optical signal of the second wavelength,
- wherein the second optical receiver is configured to receive the second optical signal of the second wavelength, and
- wherein a light receiving surface of the first optical receiver and a light receiving surface of the second optical receiver both face the light incident hole of the first transistor-outline can.
7 more elements
A combo bi-directional optical sub-assembly, comprising:
- a housing, wherein an optical transmission channel is disposed in the housing, wherein a second demultiplexer is disposed on the optical transmission channel, and 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 coupled to the housing, wherein the receiver optical sub-assembly comprises a first transistor-outline can,
- wherein a light incident hole is disposed on the first transistor-outline can,
- wherein a first demultiplexer, a first optical receiver, a second optical receiver, and an optical lens combination are packaged in the first transistor-outline can,
- wherein the receiver optical sub-assembly is packaged at the optical receive port,
- wherein a light receiving surface of the first optical receiver and a light receiving surface of the second optical receiver both face the light incident hole of the first transistor-outline can,
- wherein the first demultiplexer is configured to transmit a first optical signal of a first wavelength and reflect a second optical signal of a second wavelength, and
- wherein the second demultiplexer is configured to reflect, to the optical receive port, the first optical signal and the second optical signal that enter from the optical fiber connection port.
6 more elements
A passive optical network system, comprising:
- an optical line terminal (OLT) comprises an receiver optical sub-assembly, wherein the receiver optical sub-assembly comprises a first transistor-outline can, wherein a light incident hole is disposed on the first transistor-outline can, wherein a first demultiplexer, a first optical receiver, a second optical receiver, and an optical lens combination are packaged in the first transistor-outline can and wherein a light receiving surface of the first optical receiver and a light receiving surface of the second optical receiver both face the light incident hole of the first transistor-outline can;
- an optical distribution network (ODN) connected to the OLT;
- and
- a plurality of optical network units (ONUs) connected to the ODN.
1 more element
Dependencies are inferred from the claim text.