The dynamics of the state of polarization in multimode fiber amplifiers is presented. The experimental results reveal that although the state of polarizations at the output can vary over a large range when changing the temperatures of the fiber amplifiers, the variations are significantly reduced when resorting to the principal states of polarization in single-mode fiber amplifiers and principal modes in multimode fiber amplifiers.
© 2011 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: October 27, 2010
Revised Manuscript: December 21, 2010
Manuscript Accepted: December 23, 2010
Published: January 28, 2011
Moti Fridman, Micha Nixon, Mark Dubinskii, Asher A. Friesem, and Nir Davidson, "Principal modes in fiber amplifiers," Opt. Lett. 36, 388-390 (2011)