OPTICAL SPATIAL COUPLING MODULE

PROBLEM TO BE SOLVED: To easily manufacture an optical spatial coupling module by easily arranging and fixing an optical component. SOLUTION: The optical spatial coupling module comprises an incident end 12 where light is made incident, an emission end 14 where the light made incident from the incident end 12 is emitted, an optical path shift part 20 arranged between the incident end 12 and the emission end 14, for which the optical components 18 such as double refraction crystal, a Faraday rotator and an optical filter are arranged on a positioning unit 16, and an external case 22 provided on the outer side of the optical path shift part 20. For the positioning unit 16, the one molded with thermosetting and thermoplastic engineering plastic is used. COPYRIGHT: (C)2004,JPO