| 摘要 |
PROBLEM TO BE SOLVED: To provide an air tight sealing method suitable to an optical module using a comparatively inexpensive resin optical waveguide which can be mass produced, and remove the drawbacks of the resin optical waveguide, such as the water absorption/ moisture absorption problems. SOLUTION: An optical waveguide device 1 made of resin 17 and an optical fiber 3 are connected in an optical waveguide module fixed in a case. The inlet 5 on the case 4 for the optical fiber is sealed air-tightly by filling a thermoplastic sealant. The thermoplastic sealant desirably contains polyisobutylene as the main ingredient. The air-tight sealant has been less common in the optical waveguide module to be used in conventional communication devices, since it is comparatively expensive. This problem can be solved in this way. COPYRIGHT: (C)2006,JPO&NCIPI
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