Measured loss for the LP11 mode in a dual-mode fiber subjected to a uniform bend shows a strong dependence on the orientation of the mode-field pattern relative to the plane of the fiber bend. Wavelength and bend-radius dependence of the loss indicates that operation within ~40 nm of cutoff is feasible in dispersion compensators based on dual-mode fibers operated in the LP11 spatial mode near cutoff.
© 1993 Optical Society of America
Original Manuscript: April 27, 1993
Published: October 15, 1993
C. D. Poole and S.-C. Wang, "Bend-induced loss for the higher-order spatial mode in a dual-mode fiber," Opt. Lett. 18, 1712-1714 (1993)