Realization of efficient electroabsorption using intersubband transitions in step quantum wells
| dc.creator | Holmström, P. | |
| dc.creator | Jänes, P. | |
| dc.creator | Ekenberg, U. | |
| dc.creator | Thylén, L. | |
| dc.date | 2007-10-31 | |
| dc.date.accessioned | 2026-07-07T08:39:43Z | |
| dc.date.available | 2026-07-07T08:39:43Z | |
| dc.description | We have demonstrated efficient intersubband electroabsorption in InGaAs/InAlGaAs/InAlAs step quantum wells grown by metal-organic vapor phase epitaxy (MOVPE). An absorption modulation of 6 dB at $λ=6.0 μ$m due to Stark shift of the IS absorption was achieved at a low voltage swing of $\pm 0.5$ V in a multipass waveguide structure. Based on the experimental results it is estimated that an electroabsorption modulator with a low peak-to-peak voltage of $V_{pp}=0.9$ V can yield a modulation speed of $f_{3dB} \approx 120$ GHz with the present material by using a strongly confining surface plasmon waveguide of 30 $μ$m length. | |
| dc.description | 3 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0710.5851 | |
| dc.identifier | http://arxiv.org/abs/0710.5851 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/141168 | |
| dc.subject | Optics | |
| dc.title | Realization of efficient electroabsorption using intersubband transitions in step quantum wells | |
| dc.type | text |