Experimental results of measurement of the beat length and the differential group delay of several types of long single-mode fiber are presented. The proposed measurement technique is based on a polarization-sensitive analysis of the backscattered signal and allows one to calculate the correlation length of the random birefringence affecting the fiber.
© 2000 Optical Society of America
Andrea Galtarossa, Luca Palmieri, Marco Schiano, and Tiziana Tambosso, "Measurements of beat length and perturbation length in long single-mode fibers," Opt. Lett. 25, 384-386 (2000)