title: Nonlinear strain response of two-mode fiber-optic interferometer.
abstract: Experimental and theoretical investigation of a nonlinear response of a two-mode fiber interferometer to axial strain is described. It is discovered that the nonlinearity dramatically increases as the wavelength approaches the cutoff wavelength of the second-order mode (LP(11)).
authors.forename: B K
authors.initials: BK
authors.lastname: Kim
authors.forename: S H
authors.initials: SH
authors.lastname: Yun
authors.forename: I K
authors.initials: IK
authors.lastname: Hwang
authors.forename: B Y
authors.initials: BY
authors.lastname: Kim