Abstract: A method of fabricating a poled fiber and a dispersion compensator. The method including patterning to cover an etching-resistant material on the body portions of the cladding and on one end or both ends of the optical fiber excluding the portions to be grooved in the longitudinal direction, etching the bare portions of the cladding excluding the portions covered with the etching-resistant material, evaporating electrodes on the etched portions and applying a voltage to the electrodes, and inducing periodic poling generating optical phenomenon of the second-order nonlinearity to the optical fiber through the patterned electrodes. The compensator including a periodic poled fiber to generate a phase conjugate wave of a difference frequency between a pump light and a signal light received from a fiber coupler, and a filter to pass the phase conjugate wave coming out from the periodic poled fiber.

Abstract: The present invention includes a poled fiber using the second-order nonlinear optical phenomenon, a method of fabricating the poled fiber, and a dispersion compensator to compensate for the chromatic dispersion of an optical fiber. The method of fabricating the poled fiber according to the present invention comprises, a step of covering an etching-resistant material on the portions of the cladding excluding the portions to be grooved in the longitudinal direction of the fiber, a step of etching the bare portions of the cladding excluding the portions covered with the etching-resistant material, a step of evaporating electrodes on the etched portions, and a step of applying voltage to the evaporated electrodes. According to the fabrication method of the poled fibre as described above, along with the use of a general optical fibre instead of a special fiber, since the distance between electrodes around the core can be appropriately controlled, a high electro-optic coefficient can be induced to the poled fibre.