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Loychik, C.
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Publications (3/3 displayed)
- 2007Hybrid polymer/sol-gel waveguide modulators with exceptionally large electro-optic coefficientscitations
- 2006Low half-wave voltage and high electro-optic effect in hybrid polymer/sol-gel waveguide modulatorscitations
- 2006Pockel's coefficient enhancement of poled electro-optic polymers with a hybrid organic-inorganic sol-gel cladding layercitations
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article
Hybrid polymer/sol-gel waveguide modulators with exceptionally large electro-optic coefficients
Abstract
Electro-optic (EO) modulators are typically made from inorganic materials such as LiNbO3, but replacing them with organic EO materials, that is, ones with optical properties that change in response to an electric field, could be a promising alternative because they offer large bandwidth, ease of processing and relatively low cost. Here we incorporate a doped, crosslinked organic EO polymer into hybrid polymer/sol-gel waveguide modulator devices with exceptional performance. The half-wave voltages of the resulting Mach-Zehnder (MZ) and phase modulators at 1550nm are 1V and 2.5V, respectively. The unique properties of the sol-gel cladding materials used in the hybrid structure result in a 100 device poling efficiency, leading to respective in-device EO coefficients of 138pmV<sup>-1</sup> and 170pmV<sup>-1</sup> in the MZ and phase modulators. These results are the first to show in-device EO coefficients that are five to six times larger than those of the benchmark inorganic material.