Abstract

The coupling of an ultrashort laser pulse into a single-mode optical communication fiber gives rise to two propagating pulses as a result of the excitation of two guided modes, the fundamental, ${\mathrm{LP}}_{01}$, and the leaky, ${\mathrm{LP}}_{11}$. Such a phenomenon provides a new approach to the study of the propagation properties of the ${\mathrm{LP}}_{11}$ mode. An experiment with tunable 110-fs pulses at a wavelength near 1550 nm is described. Information about the group velocity, the polarization-rotation length, the attenuation coefficient, and the cutoff wavelength of the ${\mathrm{LP}}_{11}$ mode is obtained in a simple and direct way for various fibers.

© 2001 Optical Society of America

Efficient broadband intracore grating LP₀₁–LP₀₂ mode converters for chromatic-dispersion compensation

Nguyen Hong Ky, H. G. Limberger, R. P. Salathé, and F. Cochet
Opt. Lett. 23(6) 445-447 (1998)

Cutoff-wavelength determination in single-mode fibers by mode interference

E. Brinkmeyer and S. Heckmann
Opt. Lett. 9(1) 28-30 (1984)

Study of spatial–temporal characteristics of optical fiber based on ultrashort-pulse interferometry

R. Rokitski, P.-C. Sun, and Y. Fainman
Opt. Lett. 26(15) 1125-1127 (2001)

Adaptive control of femtosecond pulse propagation in optical fibers

Fiorenzo G. Omenetto, Antoinette J. Taylor, Mark D. Moores, and David H. Reitze
Opt. Lett. 26(12) 938-940 (2001)

Four-wave mixing in microstructure fiber

Jay E. Sharping, Marco Fiorentino, Ayodeji Coker, Prem Kumar, and Robert S. Windeler
Opt. Lett. 26(14) 1048-1050 (2001)