| 摘要 |
When ld0 denotes an initial optical path length that is a length of an optical path, along which the signal light travels, as converted using a refractive index in vacuum, lm0 denotes an initial optical path length that is a length of an optical path, along which the reference light travels, as converted using a refractive index in vacuum, Deltal denotes a fluctuation width of a difference in optical path lengths between the signal light and the reference light as converted using a refractive index in vacuum, lambda0 denotes a central oscillation wavelength of the wavelength-variable laser, and Deltalambda denotes an oscillation wavelength variable range of the wavelength-variable laser, then an initial optical path difference |ld0-lm0| satisfies |ld0-lm0|>(Deltal/Deltalambda)lambda0. |
