Patent ID: 6594423
Filing Date: 2003-07-15
Classification: G02B

Abstract:
A fiber type optical component comprising:a core; a cladding; and a refractive index enhancing section, wherein the core and the cladding have light sensitivity, the refractive index enhancing section is formed by emitting ultraviolet light on an optical fiber, the density of germanium in a layer having light sensitivity on the core and the cladding in the optical fiber satisfies formula 1 such as 24&af;[Âµm&CenterDot;wt&it;â€ƒ&it;%]<&Sum;k&it;Î²k&it;dk<100&af;[Âµm&CenterDot;wt&it;â€ƒ&it;%],the amount of change of refractive index of the core and the cladding by the emission of ultraviolet light is less than 0.002 at 674.9 nm wavelength.