| 摘要 |
A single-mode optical fiber has a prescribed mode field diam 1 (µm)) at a first wavelength » 1 , in which a bending loss when measured at a second wavelength » 2 (µm) and wound with a bending radius r (mm) is L b (dB) for one bending, a connector/splice loss with an optical fiber that has a prescribed mode field diameter MFD 2 (µm) at the first wavelength » 1 is L s (dB) for one connection/splice point at the second wavelength » 2 (µm), and an mode field diameter dependence of a total loss coefficient calculated by a f 1 ± 0.5 µm, with the formula (1) being as follows: L = w s ‹ L s + w b ‹ L b , w s + w b = 1 , w s > 0 , w b > 0 ,
where w s and w b in the formula (1) represent dimensionless weighting factors and are set within a range that satisfies th
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