Modelling of an intersubband quantum confined Stark effect in Ge quantum wells for mid-infrared photonics
In this work we theoretically investigate quantum confined Stark effect of intersubband transitions in asymmetric Ge/SiGe quantum wells for intensity modulation in the mid-infrared. Our calculations show that extinction ratios up to 1 dB and modulation speeds of several tens of GHz could be obtained...
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Veröffentlicht in: | Optics express 2022-12, Vol.30 (26), p.46710-46721 |
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creator | Barzaghi, A Falcone, V Calcaterra, S Marris-Morini, D Virgilio, M Frigerio, J |
description | In this work we theoretically investigate quantum confined Stark effect of intersubband transitions in asymmetric Ge/SiGe quantum wells for intensity modulation in the mid-infrared. Our calculations show that extinction ratios up to 1 dB and modulation speeds of several tens of GHz could be obtained in 100 µm long waveguides. |
doi_str_mv | 10.1364/OE.476735 |
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subjects | Optics Physics |
title | Modelling of an intersubband quantum confined Stark effect in Ge quantum wells for mid-infrared photonics |
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