Liquid-crystal- (LC-) based rotatable wave plates exhibiting phase retardation that is electrically controllable through more than 2π and rotatable azimuthal orientation of the optical axis have been achieved. One outer surface of the LC cell is coated with a transparent electrode; this controls the phase retardation. A single wave plate of this type is shown to be capable of converting an arbitrary input polarization to any desired polarization, and its applicability to feedback polarization control is demonstrated.
© 2005 Optical Society of America
Original Manuscript: May 18, 2004
Revised Manuscript: July 20, 2004
Manuscript Accepted: July 20, 2004
Published: June 10, 2005
Katsuhiko Hirabayashi, "Electrically controllable liquid-crystal rotatable wave plate with variable phase retardation," Appl. Opt. 44, 3552-3559 (2005)