A technique for the determination of the wavelength-dependent attenuation coefficient of the LP11 mode in single-mode fibers is presented. Knowledge of the magnitude of this coefficient is required, e.g., for the quantitative prediction of modal noise in an optical-fiber communication system. An effective cutoff wavelength of the LP11 mode can be unambiguously defined as the wavelength at which the attenuation coefficient equals a specified value.
© 1984 Optical Society of America
Original Manuscript: February 15, 1984
Manuscript Accepted: March 20, 1984
Published: June 1, 1984
K. A. H. van Leeuwen and H. T. Nijnuis, "Measurement of higher-order mode attenuation in single-mode fibers: effective cutoff wavelength," Opt. Lett. 9, 252-254 (1984)