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Updated: Jul 9, 2026

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
Published on: February 27, 2019
Low-V(pi) electro-optic modulator with a high-microbeta chromophore and a constant-bias field
Abstract:
A low half-wave voltage V(pi) of 1.57 V was obtained with a 2-cm-long birefringent polymer waveguide modulator at a wavelength of 1.3 microm by use of a modulator design with a constant-bias electric field and a high-microbeta chromophore. The design allows the maximum achievable electro-optic coefficient of the material to be utilized. This electro-optic coefficient can be more than twice as high as the residue value that is used by conventional modulator designs, after fast partial relaxation following poling.
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