Abstract

Demonstration of highly birefringent single-mode fibers^[1,2] that maintain linear polarization points to the use of single-mode fibers together with polarization sensitive optical devices as well as other applications such as fiber gyros^[3] non-linear optics^[4] etc. The output polarization and its orientation at the end of long length low birefringence fibers^[5,6], vary erratically due to minor stresses and changes in ambient conditions that couple energy between the nearly degenerate orthogonal modes.

© 1980 Optical Society of America