| 摘要 |
PROBLEM TO BE SOLVED: To provide a fiber wiring sheet in which increase in loss due to lateral pressure or the like can be prevented. SOLUTION: An erbium dope fiber(EDF) is laid on sheet base materials 11a, 11b on which adhesive layers 12a, 12b are laminated, with single layers of fiber wiring 13a, 13b formed respectively. The sheet base material 11a is reversed in the direction R and, with the adhesive layers 12a, 12b inside, both base sheets 11a, 11b are superimposed. In this case, both base sheets 11a, 11b are superimposed so that an air layer 14 relaxing the lateral pressure to an essentially permissible degree is interposed between the fiber wirings 13a, 13b in each layer. |
