Patent ID: 6959124

Claim:
An electro-optical device, comprising two plane optical substrates ( 100 , 400 ) each having at least one optical waveguide ( 110 , 410 ), and a nematic liquid crystal ( 200 ) inserted between them, in which the liquid crystal ( 200 ) is split into two separate active zones ( 210 , 220 ) serving to control coupling and decoupling of a respective one of the TE and TM polarizations of a light signal injected into the waveguides ( 110 , 410 ) wherein a first waveguide provided in one of the two substrates defines an inlet port and an outlet port and a second waveguide provided in the other of the two substrates defines at least one outlet port, so that a signal injected in the inlet port of the first waveguide outputs by the outlet port of one of the first waveguide and the second waveguide.