Rare-earth doped optical fiber module and manufacturing method therefor

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A rare-earth doped optical fiber module including a resin reel having elasticity and a rare-earth doped optical fiber wound around the resin reel. The rare-earth doped optical fiber module further includes a single-mode optical fiber spliced to the rare-earth doped optical fiber and wound around the resin reel. The resin reel is formed of silicone rubber, fluororubber, or soft PVC.