Optical splitting device and optical splitting system
An optical splitting device is provided, which includes a housing, at least one first optical splitter which is disposed in the housing, a multi-core input optical interface, a multi-core output optical interface, and at least one single-core output optical interface. The multi-core input optical interface, the multi-core output optical interface, and the at least one single-core output optical interface are disposed on an outer wall of the housing, and each first optical splitter includes an input end, a first output end, and at least one second output end. The multi-core input optical interface is connected to an input end of the at least one first optical splitter, the first output end of each first optical splitter is connected to the multi-core output optical interface, and the second output end of each first optical splitter is connected to the single-core output optical interface in a one-to-one correspondence.
1 . An optical splitting device comprising:
a housing,
at least one first optical splitter,
a multi-core input optical interface,
a multi-core output optical interface, and
at least one single-core output optical interface,
wherein the multi-core input optical interface, the multi-core output optical interface, and the at least one single-core output optical interface are disposed on an outer wall of the housing,
wherein the at least one first optical splitter is disposed in the housing, and each first optical splitter comprises an input end, a first output end, and at least one second output end;
wherein the multi-core input optical interface is connected to an input end of the at least one first optical splitter, the first output end of each first optical splitter is connected to the multi-core output optical interface, wherein the multi-core output optical interface is connected to a multi-core input optical interface of an another optical splitting device at a next lower level,
the second output end of each first optical splitter is connected to the at least one single-core output optical interface in a one-to-one correspondence, wherein the at least one single-core output optical interface is connect to at least one optical network terminal (ONT) in a one-to-one correspondence; and
wherein the multi-core input optical interface supports a plurality of optical fibers, and each of the plurality of optical fibers is connected to the input end of an optical splitter of the at least one first optical splitter.
2 . The optical splitting device according to claim 1 , wherein a first multi-core adapter is disposed on the multi-core input optical interface, a second multi-core adapter is disposed on the multi-core output optical interface, and a single-core adapter is disposed on each single-core output optical interface.
3 . The optical splitting device according to claim 2 , wherein an in-housing port of the first multi-core adapter is connected to one end of at least one first single-core fiber connector, and the other end of the at least one first single-core fiber connector is connected to the input end of the at least one first optical splitter in a one-to-one correspondence by using an optical fiber:
wherein an in-housing port of the second multi-core adapter is connected to one end of at least one second single-core fiber connector, and the other end of the at least one second single-core fiber connector is connected to the first output end of the at least one first optical splitter in a one-to-one correspondence by using an optical fiber; and
wherein an in-housing port of each single-core adapter is connected to one end of each third single-core fiber connector in a one-to-one correspondence, and the other end of each third single-core fiber connector is connected to each second output end of the first optical splitter by using an optical fiber.
4 . The optical splitting device according to claim 2 , wherein a quantity of fiber cores supported by the first multi-core adapter and a quantity of fiber cores supported by the second multi-core adapter are greater than or equal to a quantity of the first optical splitters.
5 . The optical splitting device according to claim 2 , wherein an out-of-housing port of the first multi-core adapter is configured to connect to a first multi-core fiber connector, an out-of-housing port of the second multi-core adapter is configured to connect to a second multi-core fiber connector, and an out-of-housing port of each single-core adapter is configured to connect to a fourth single-core fiber connector.
6 . The optical splitting device according to claim 2 , wherein an optical cable connected to a first multi-core fiber connector and an optical cable connected to a second multi-core fiber connector are distribution cables.
7 . The optical splitting device according to claim 1 , wherein at least one second optical splitter is further disposed in the housing, the second output end of the at least one optical splitter is connected to an input end of the at least one second optical splitter in a one-to-one correspondence, and an output end of the at least one second optical splitter is connected to the single-core output optical interface in a one-to-one correspondence.
8 . The optical splitting device according to claim 1 , wherein the at least one first optical splitter is an uneven optical splitter, and output optical power of the first output end is higher than output optical power of the second output end.
9 . The optical splitting device according to claim 1 , wherein the housing comprises a base and an upper cover, wherein the base and the upper cover are detachably and fixedly connected, and
wherein the multi-core input optical interface, the multi-core output optical interface, and the at least one single-core output optical interface are disposed on an end face of the base.