Patent ID: 8406584
Filing Date: 2013-03-26
Classification: G02B,G02F

Abstract:
1. A fiber optic device for generating an idler lightwave having a wavelength λ 2 from a signal lightwave of wavelength λ 1 that has been input into the fiber optic device, the wavelength λ 1 being an arbitrary wavelength included in a first wavelength band between a wavelength λ x and a wavelength λ y , and the wavelength λ 2 being an arbitrary wavelength included in a second wavelength band and being different from the wavelength λ 1 , wherein the fiber optic device comprises: a wavelength tunable pump light source for outputting a pump lightwave having a wavelength of 2×(λ an optical coupler for coupling and outputting the pump lightwave and the signal lightwave; and an optical fiber having a length of 450 m or less, the zero-dispersion wavelength thereof being in the first wavelength band, the dispersion slope thereof at the zero-dispersion wavelength being +0.01 ps/nm