Abstract

Splicing and bending losses are compared among step, power-law, W, ring-shaped, and M·W index single-mode optical fibers. A product of normalized offset and tilt misalignments DNΦN is introduced to compare the permissible offset and tilt misalignments among these fibers. Permissible offset misalignment can be evaluated by DN/B1/3 under constant bending loss condition. Here, B denotes the bending loss parameter. Numerical calculations on these parameters reveal that the required splicing accuracy is nearly identical for step, power-law, and W fibers. An index dip at the core center seems to cause deleterious effects on the splicing loss, provided that the fiber bending loss is kept constant. The effects of profile parameters on DNΦN and DN/B1/3 are investigated in detail.

© 1978 Optical Society of America

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