Extinction ratio measurements on high purity linear polarizers

Summary This paper discusses the challenges and methods for measuring high extinction ratio polarizers (exceeding 10^6), particularly in systems where precise measurement is crucial. The extinction ratio of a polarizer is significantly influenced by test system geometry, which complicates accurate assessments for high-performance polarizers. The authors present techniques for measuring high purity polarizers without relying […]

Basic Polarization Techniques and Devices

Summary This application note provides an overview of light polarization, retardation, and key optical components used to manipulate polarization states. It explains how optical isolators, light attenuators, polarization rotators, and variable beam splitters function by using combinations of polarizers and retarders. Quarter wave and half wave retarders play crucial roles in modifying polarization by shifting […]