Madamopoulos, Nicholas; Riza, Nabeel A.

Proceedings of SPIE, 3388, Advances in Optical Information Processing VIII, Aerospace/Defense Sensing and Controls, 1998

Photonic delay lines using polarization selective holograms for optical signal routing.

1998

April

Published

1

()

Phased array antennas Polarization-selective holograms Polymer dispersed liquid crystal (PDLC) Ferroelectric liquid crystal (FLC) Photonic beamformer Delay lines Microwave radar Signal to noise ratio Polarization Optical filters Switches Liquid crystals Holograms Interference (communication)

120

128

Orlando, Florida, United States

The use of polarization selective holograms for the implementation of photonic delay lines (PDLs) is proposed. A single bit PDL using FLC devices as active polarization switches and polymer dispersed liquid crystal (PDLC) devices as polarization selective optical path routing components is experimentally demonstrated and characterized. Different within-channel leakage noise filters are discussed and experimentally demonstrated, and high signal-to-leakage noise ratios (>45 dB) are obtained for both PDL settings.The use of polarization selective holograms for the implementation of photonic delay lines (PDLs) is proposed. A single bit PDL using FLC devices as active polarization switches and polymer dispersed liquid crystal (PDLC) devices as polarization selective optical path routing components is experimentally demonstrated and characterized. Different within-channel leakage noise filters are discussed and experimentally demonstrated, and high signal-to-leakage noise ratios (>45 dB) are obtained for both PDL settings.

10.1117/12.319413