Enhanced electro-optic phase shifts in suspended waveguides

Enhanced electro-optic phase shifts in suspended waveguides

We demonstrate enhanced electro-optic phase shifts in suspended InGaAs/InGaAsP quantum well waveguides compared to attached waveguides. The enhancement stems from an improved overlap between the optical mode and the multiple quantum well layers in thin waveguides when the semiconductor material bene...

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Veröffentlicht in:Optics express 2010-01, Vol.18 (2), p.885-892
Hauptverfasser: Stievater, T H, Park, D, Rabinovich, W S, Pruessner, M W, Kanakaraju, S, Richardson, C J K, Khurgin, J B
Format: Artikel
Sprache:eng
Schlagworte:
Equipment Design
Equipment Failure Analysis
Light
Quantum Dots
Refractometry - instrumentation
Scattering, Radiation
Transducers
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Zusammenfassung:We demonstrate enhanced electro-optic phase shifts in suspended InGaAs/InGaAsP quantum well waveguides compared to attached waveguides. The enhancement stems from an improved overlap between the optical mode and the multiple quantum well layers in thin waveguides when the semiconductor material beneath the waveguide is selectively etched. The measured voltage length product is 0.41 V-cm and the measured propagation loss is 2.3 +/- 0.7 dB/cm for the TE mode in the optical L-band.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.18.000885