| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical circulator array which is small-sized and inexpensive and is efficiently manufactured. SOLUTION: With respect to the optical circulator array, a first common optical element which traverses all first optical waveguides, a common Farady rotator which traverses all first and second optical waveguides, and a second common optical element which traverses all second optical waveguides are integrally joined into an assembly, and the assembly is inserted to a groove.
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