Patent ID: 11947170
Assignee: FUJIKURA LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A connector system comprising:
a first ferrule that holds end parts of multi-core fibers;
a second ferrule that holds end parts of single-core fibers; and
an optical connection member that:
is disposed between the first ferrule and the second ferrule, and
comprises an optical system that optically connects respective cores of the multi-core fibers and the corresponding single-core fibers, wherein

one of the first ferrule and the second ferrule comprises a guide pin, and the other of the first ferrule and the second ferrule has a guide hole,
the first ferrule, the optical connection member, and the second ferrule are aligned by fitting the guide pin in the guide hole through a through hole of the optical connection member,
the optical connection member further comprises:
a first lens plate disposed on an end face of the first ferrule;
a second lens plate disposed on an end face of the second ferrule; and
a relay plate disposed between the first lens plate and the second lens plate,

the first lens plate comprises first lenses corresponding to the multi-core fibers,
the second lens plate comprises second lenses corresponding to the single-core fibers,
the relay plate comprises:
first optical elements corresponding to the first lenses; and
second optical elements corresponding to the second lenses,

the relay plate propagates an optical signal between the first optical elements and the second optical elements,
the first optical elements face a corresponding first lens such that collimated light propagates between the respective first lenses and the corresponding first optical elements, and
the second optical elements face a corresponding second lens such that collimated light propagates between the respective second lenses and the corresponding second optical elements.