Patent ID: 6393188
Filing Date: 2002-05-21
Classification: G02B

Abstract:
An apparatus, for use in an optical transmission link having a single-mode optical fiber, for simultaneously compensating a dispersion value and a dispersion slope in the single-mode optical fiber, comprising:a dispersion compensating module comprising N number of component optical fibers arranged in a serial fashion, N being a positive integer more than one, wherein each of the slope per a unit length and a different length, wherein each length of the component optical fibers is described as: &Sum;i=1n&it;â€ƒ&it;(LiÃ—â€ƒ&it;Di)+LsmfÃ—â€ƒ&it;Dsmf&TildeFullEqual;0&it;&NewLine;&it;SsmfDsmf&TildeFullEqual;&Sum;i=1n&it;â€ƒ&it;LiÃ—â€ƒ&it;Si&Sum;i=1n&it;â€ƒ&it;(LiÃ—â€ƒ&it;Di)where, Dsmf is a dispersion value per a unit length of the single-mode optical fiber, Ssmf is a dispersion slope per a unit length of the single-mode optical fiber, Lsmf is a length of the single-mode optical fiber, Di (1&lE;I&lE;n, n is a positive integer) is a dispersion value per a unit length of the i-th optical fiber, S is a dispersion slope per a unit length of the i-th optical fiber, and Li is a length of the i-th optical fiber.