| 摘要 |
The method consists of first splicing (FIG. 2) one short length of a single-mode fiber (3, 4) into each of the optical fibers (1, 2) of fibers lying parallel to each other (FIG. 1), then fusing the two spliced-in single-mode fibers (3, 4) together (FIG. 3) and pulling them to form a coupler (6) (FIG. 4), and then embedding the coupler (6) in a protective housing (7) up to points beyond the splices (5).
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