Wavelength conversion element and method for using same

Details Wavelength conversion element and method for using same Wavelength conversion element and method for using same

H - Electricity

04

J

H04J 14/02 (2006.01) G02F 1/00 (2006.01) G02F 1/35 (2006.01) G02F 1/37 (2006.01) G02F 1/377 (2006.01) G02F 2/02 (2006.01)

Patent

CA 2479328

A wavelength conversion element which can set the wavelength of a pump light to a wavelength longer or shorter than the wavelength of a plurality of signal lights and a wavelength of a plurality of conversion lights present in an optical communication band, and a method for using such a wavelength conversion element are provided. A first pump light with a wavelength .lambda.1 of 1.51 µm, a second pump light with a wavelength .lambda.2 of 1.57 µm, and a signal light with a wavelength of .lambda.S of 1.55 µm are multiplexed in a multiplexer and introduced as an incident light into an optical waveguide of a wavelength conversion element. In the optical waveguide, an SF light with a wavelength .lambda.SF of 0.77 µm is generated by the SFG of the first pump light with a wavelength .lambda.1 of 1.51 µm and the second pump light with a wavelength .lambda.2 of 1.57 µm, the signal light is wavelength converted as a DF light (wavelength 1.53 µm) by the DFG of the SF light and signal light, and this DF light is outputted as the converted light (wavelength .lambda.C = 1.53 µm).

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