Optical splitting device and optical splitting system

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.