Lamda 2 Waveplate

The λ/2 waveplate utilizes precisely controlled birefringent crystals to induce 180-degree phase retardation, enabling rotation of linear polarization by specific angles or conversion between left/right circular polarization states. This component plays a critical role in laser modulation, polarization detection, and optical communication systems, with its retardation accuracy typically exceeding λ/300@632.8nm.