Measurement of linear and circular diattenuation in optical elements

摘要

A system for measuring linear or circular diattenuation in an optical element includes a sample rotation stage for securing an optical element sample; a light source module for generating a source light beam and a detector module. The light source module and detector module are arranged with the sample rotation stage between them, thereby permitting the source light beam to propagate through a sample that may be secured in the sample stage and to the detector module. Linear motion control of the light source module and the detector module, as well as tilt control of the light source module, the sample rotation stage and the detector module is provided, thereby to facilitate detection, by the detector module of the modulated light intensity information corresponding to a diattenuation characteristic of the optical sample secured in the sample stage.

主权项

1. A system for measuring diattenuation in an optical element comprising:
a sample rotation stage for securing an optical element sample; a light source module for generating a source light beam; a detector module; the light source module and detector module being arranged with the sample rotation stage between them, thereby permitting the source light beam to propagate through a sample that may be secured in the sample stage and to the detector module; linear motion means for controlled linear motion of the light source module and for controlling linear motion of the detector module; first tilt means for controlled tilt of the light source module and source beam, rotation means for rotating the sample rotation stage and second tilt means for tilting the detector module, thereby to facilitate detection, by the detector module, of light intensity information corresponding to diattenuation characteristics of the optical sample secured in the sample stage.