Patent ID: 6944102
Filing Date: 2005-09-13
Classification: G11B

Abstract:
1. A magnetooptic read device comprising: a magnetooptic transducer configured to cooperate with a magnetized medium to be read; a light source configured to apply, through an upstream first polarizer, an excitation beam to the magnetooptic transducer; and a photodetector lying on an optical path of a reflected beam coming from the magnetooptic transducer to deliver an electrical read signal, in which the magnetooptic transducer produces, in response to the excitation beam, the reflected beam that includes a reflected part of the excitation beam and, owing to an effect of a principal component of an electric field of an incident wave, a magnetooptic component containing the read information; wherein the first polarizer is configured to let through both the principal component and its orthogonal component, the orthogonal component having a lower amplitude than an amplitude of the principal component.