Patent ID: 7215856

Claim:
A reconfigurable optical device for wavelength division multiplexing networks, comprising at least two waveguides (A, B, 14 ) with two-dimensional confinement, reached by at least one wavelength division multiplexing, or WDM, input signal ( 1 ) and at least one first optical pumping beam ( 11 ) characterized in that it comprises said waveguides (A, B) being produced with a material presenting non-linerity of the second order, said waveguides (A, B) being produced on at least one substrate (S 1 ), on which in a first portion (L 1 ) of said substrate (S 1 ) on a first waveguide (A) of said waveguides is used in a way to generate a sum frequency signal (WSMF) using a “phase-matching” technique between a predetermined channel (WS) of WDM signals and said pumping beam (WP), in a second portion (L 2 ) of said substrate, a bidirectional optical coupler (C) connecting said two waveguides is provided, said directional optical coupler (C) having a cut-off frequency between the frequency of said WDM input signal and a sum frequency (WSF) in a way to extract the signal from said first waveguide (A) at sum frequency (WSMF) and sending it to a second waveguide (B), and in a third portion (L 3 ) of said substrate on the second waveguide (B) of said waveguides (A, B) at least one “phase-matching” technique is used in a way to reconvert the sum frequency signal into one of the wavelength of the WDM signal.