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High-frequency operation of very low voltage, 1.55 μm single-mode optical waveguide modulator based on Wannier-Stark localisation

High-frequency operation of very low voltage, 1.55 μm single-mode optical waveguide modulator based on Wannier-Stark localisation

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The first realisation of a singlemode waveguide modulator based on Wannier-Stark localisation exhibiting a 0.75 V drive voltage and a 2 GHz cutoff frequency is reported. The extinction ratio is 10 dB for an on-state loss of 4.2 dB. The performance variation with optical power is presented.

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