APPARATUS AND METHODS FOR POLARIZATION MEASUREMENTS

摘要

Apparatus and methods for polarimetric measurements across a spectral range, such as determining the polarimetric state acrosS a wavelength band in a wavelength-division multiplexed fiber optic channel. A variable phase delay is introduced between orthogonal polarization components in an incident light. The resulting intensity changes are used to compute parameters indicative of the polarimetric state of the light. These measurements may be used, for example, for polarimetric imaging, polarimetric component characterization, and measuring polarization states in a fiber link.