Patent ID: 8761549

Claim:
An electrooptical component for modulating a light flux as a function of a control electrical signal, the component comprising: a wave guide including disconnected opposing ends, an input at one of said ends and an output at another of said ends, wherein the light flux is provided to the input and travels once through said wave guide from said input to said output; a modulation area in which the light flux is propagated in said wave guide and is subjected to the action of at least one first element and at least one second element of semi-conducting materials forming a pair of electric control elements receiving said control electric signal, said wave guide being arranged so that, in said modulation area, from at least one first region to at least one second region of interaction between the light flux and said pair of electric control elements a length of a path travelled by the light flux is different from a length of a path travelled by the control electric signal, said length difference being determined to decrease or compensate for the difference between the light flux velocity of propagation and the electric signal velocity of propagation in the electric control elements between said first and second regions of interaction; said wave guide is arranged so that the path travelled by the light flux in the modulation area passes at least twice from one electric control element to the other electric control element; and said wave guide has, in at least one part of the modulation area, a shape wound on itself and successively passing through at least two indentations emanating from at least two of said electric control elements.