Significant strides have been made in waveguide-based ... elements that record the polarization information of two interfering beams comprising a right-handed circular polarization (RCP) and ...

In addition, dual polarization and circular polarization may be needed ... One such antenna is the slotted waveguide antenna array (SWAA), which has been used since World War II in various radar ...

Over the years, several waveguides and structured materials have been developed to preserve linear and circular polarization over long distances and analyze these states with a sufficient degree ...

The new devices enable electro-optical control of polarization, which could open new possibilities for chip-based devices and complex photonic circuits based on femtosecond-written waveguides.