| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method of evaluating an effectual specific refractive index difference of a single mode optical fiber, and evaluating its property distribution in the direction of propagation of the optical fiber with high precision, and its evaluation apparatus. <P>SOLUTION: An effective Raman gain rate distribution C<SB>reff</SB>(λ, z) at an evaluation wavelengthλand at a position z in the propagation direction of a measured single mode optical fiber, and a normalized light intensity distribution I<SB>n</SB>(λ, z) caused by a structural mismatching are evaluated. By evaluating an effective specific refractive index difference distributionΔ<SB>eff</SB>(λ, z) of the measured single mode optical fiber, from the relation between the gain distribution C<SB>reff</SB>(λ, z) and the intensity distribution I<SB>n</SB>(λ, z), the distribution of a property of the measured single mode optical fiber in the direction of its propagation is evaluated. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
