| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical device which has improved practicality and reduced coupling loss. <P>SOLUTION: A multi-core fiber coupling device 100 is an optical device for coupling a multi-core fiber 10 to a single-core fiber 20 and includes: a first optical system S1 which is located on optical axes of a plurality of beams emitted from the multi-core fiber 10 and makes optical axes of respective beams non-parallel with each other to separate respective beams from each other; and a second optical system S2 which makes optical axes of the plurality of beams, which are non-parallel with each other on the side of the first optical system S1, approximately parallel with each other. <P>COPYRIGHT: (C)2013,JPO&INPIT |
