Title :
Leaky-mode loss in coated depressed-cladding fibers
Author_Institution :
Sektion Informationstech., Bereich Bauelemente und Syst., Tech. Univ., Dresden, East Germany
Abstract :
A simple formula for the leaky-mode loss in realistic depressed-cladding (DC) fibers is presented. It takes the finite dimension of the substrate cladding and the presence of the coating into account. The losses show oscillations versus both the wavelength and the width of the substrate cladding. Additional small humps occurring in the transmission curves of cutoff measurements are well explained.<>
Keywords :
claddings; optical fibres; optical films; optical losses; optical waveguide theory; coated depressed-cladding fibers; cutoff measurements; finite dimension; leaky-mode loss; oscillations; substrate cladding; substrate cladding width; transmission curves; Absorption; Coatings; Degradation; Loss measurement; Optical fiber theory; Performance loss; Propagation constant; Propagation losses; Refractive index; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
