RARE-EARTH DOPED OPTICAL FIBER, METHOD OF PRODUCING THE SAME, AND FIBER LASER

文件类型：PDF文档
文件大小：650K
A rare-earth doped optical fiber that includes a core and one or more clad layers surrounding the core, in which the core has a rare earth dopant, and a relationship of Equation (1) is satisfied : 0 < ∫ r 0 r c  D  ( r ) · P p 2  ( r ) · P s 2  ( r )  r    r ∫ r 0 r c  D  ( r ) · P p 2  ( r )  r    r ≤ 0.35 ( 1 ) where Pp(r) represents an electric field distribution in an exciting wavelength, Ps(r) represents an electric field distribution in wavelengths of spontaneous emission and/or stimulated emission carried in the core, D(r) (mass %) represents a rare-earth dopant distribution, ro represents a core center, and rc represents a core diameter.