RESONANCE TYPE NONLINEARITY MEASURING METHOD AND RESONANCE TYPE NONLINEARITY MEASURING DEVICE OF NONLINEAR OPTICAL FIBER

摘要

PROBLEM TO BE SOLVED: To provide a resonance type nonlinearity measuring method and resonance type nonlinearity measuring device capable of precisely measuring the nonlinearity of a nonlinear optical fiber with a simple measuring structure at a low cost.;SOLUTION: The nonlinear optical fiber 20 is arranged between a pair of a first optical fiber long period lattice 10a and a second optical fiber length period lattice 10b, and a pumping light source 30 for generating resonance type nonlinearity and a measuring wavelength light emitting source 40 for emitting a light to be measured for nonlinearity are connected to the first length period lattice 10a. The light emitted from the two light sources are passed through the nonlinear optical fiber 20 and the second length period lattice 10b, and the change in interference pattern of the wavelength light formed by the first and second optical fiber length period lattices 10a and 10b is measured by an optical spectrum analyzer 60.;COPYRIGHT: (C)2003,JPO