Electro-optical element used in an electro-optical modulator comprises a front surface for the introduction of a light beam, an outlet surfaces, a base surface, electrode surfaces each with an electrical electrode, and a covering surface

摘要

Electro-optical element comprises a front surface (5A) for the introduction of a light beam (o), an outlet surface (5B), a base surface (6B) running at an angle to and between the front and outlet surfaces, electrode surfaces (7A, 7B) each with an electrical electrode (8, 9) arranged on the front and outlet surfaces for applying an electrical voltage, and a covering surface (6A). At least one of the surfaces forms an angle deviating from zero or from a right angle with a light beam falling onto the front surface.