This book presents up to date information and latest developments in optical fiber research. It discusses various topics such as new applications for optical fibers; and nonlinear and polarization effects in optical fibers. It presents detailed study of nonlinear effects in optical fibers in terms of experiments, applications and theoretical analysis. It further discusses fiber birefringence effects, chromatic dispersion and polarization dependent losses in optical fibers, spun fibers and polarization mode dispersion. This book includes contributions by eminent scientists and practitioners having vast knowledge and experience in the field of optics. The book provides latest developments in optical fiber research for the benefit of researchers, students and industrial users associated with the field of optical fiber technologies.