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Proceedings Paper

Microresonator modulators: design, fabrication, and fine tuning the performance
Author(s): Gareth Parry; Marco Ghisoni; P. Zouganeli; R. Mottahedeh; A. Rivers; M. A. Pate; Geoff Hill; John Stuart Roberts; Chris C. Button
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Paper Abstract

Micro-resonator modulators exploiting the quantum confined Stark shift and incorporating the asymmetric Fabry-Perot have been fabricated which exhibit high contrast (15 - 20 dB), and large reflectivity changes (> 50%) at low voltages (3V - 4V). This paper will review progress made in the development of these devices and will consider how the performance can be modified, post growth, by use of intermixing techniques to modify the shape of the quantum wells. The asymmetric Fabry Perot structure is also a convenient configuration to investigate the intermixing process itself. Measurement of the lateral extent of the intermixing process promoted by vacancies in GaAs/AlGaAs structures obtained using this structure are reported.

Paper Details

Date Published: 3 September 1992
PDF: 8 pages
Proc. SPIE 1675, Quantum Well and Superlattice Physics IV, (3 September 1992); doi: 10.1117/12.137637
Show Author Affiliations
Gareth Parry, Univ. College London (United Kingdom)
Marco Ghisoni, Univ. College London (United Kingdom)
P. Zouganeli, Univ. College London (United Kingdom)
R. Mottahedeh, Univ. College London (United Kingdom)
A. Rivers, Univ. College London (United Kingdom)
M. A. Pate, Univ. of Sheffield (United Kingdom)
Geoff Hill, Univ. of Sheffield (United Kingdom)
John Stuart Roberts, Univ. of Sheffield (United Kingdom)
Chris C. Button, Univ. of Sheffield (United Kingdom)

Published in SPIE Proceedings Vol. 1675:
Quantum Well and Superlattice Physics IV
Gottfried H. Doehler; Emil S. Koteles, Editor(s)

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