1 March 2000 Highly efficient linear waveguide modulator based on domain-inverted electro-optic polymers
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Abstract
A Y-branch waveguide directional coupler modulator based on domain-inverted electro-optic polymers is demonstrated for highly efficient analog modulation. A detailed theoretical analysis is given to show its working principles based on coupled-mode theory. Domain-inverted electro-optical polymers are obtained by using a high-voltage pulsed poling technique. The demonstrated domain-inverted polymers represent a promising technology for creating a new class of electro-optic modulators with superior performance over conventional counterparts. By using domain inversion in a /-branch waveguide directional coupler, the polymeric electro-optic waveguide modulator provides a highly linear modulation transfer curve that shows a ~100% modulation efficiency with an intermodulation distortion less than -30 dB. The demonstrated modulator also features a switching voltage of 10 V and an extinction ratio of -28 dB at operation wavelength of 1.32 ?m. A linear modulation transfer curve and a 3-dB operating point are obtained without a bias voltage or an asymmetric device structure through a single uniform electrode.
Suning Tang, Suning Tang, Zan Shi, Zan Shi, Dechang An, Dechang An, Lin Sun, Lin Sun, Ray T. Chen, Ray T. Chen, } "Highly efficient linear waveguide modulator based on domain-inverted electro-optic polymers," Optical Engineering 39(3), (1 March 2000). https://doi.org/10.1117/1.602414 . Submission:
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