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Proceedings Paper

Contrast ratio enhancement in a saturable absorber-based photonic analog-to-digital converter
Author(s): Michael J. Hayduk; Rebecca Jane Bussjager; Steven T. Johns; Cheryl M. Gerhardstein; Gary W. Wicks
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Paper Abstract

Optical processing techniques are expected to play a key role in the next generation of advanced high-speed analog- to-digital converters (ADCs). These techniques will alleviate the current limitations inherent in conventional electronic ADCs. We are currently developing a novel photonic ADC module that incorporates the use of semiconductor saturable absorbers to perform the data quantization at speeds in the tens of GHz regime. Results will be presented for the experimental material characterization of the semiconductor saturable absorbers used in the data conversion process. Enhancement of the contrast ratio of the saturable absorber between the 'on' state and the 'off' state can also be greatly enhanced by the use of an asymmetric Fabry-Perot etalon. Initial experimental results for a saturable absorber contained within an etalon will also be presented.

Paper Details

Date Published: 1 August 2002
PDF: 7 pages
Proc. SPIE 4732, Photonic and Quantum Technologies for Aerospace Applications IV, (1 August 2002); doi: 10.1117/12.477436
Show Author Affiliations
Michael J. Hayduk, Air Force Research Lab. (United States)
Rebecca Jane Bussjager, Air Force Research Lab. (United States)
Steven T. Johns, Air Force Research Lab. (United States)
Cheryl M. Gerhardstein, Air Force Research Lab. (United States)
Gary W. Wicks, Univ. of Rochester (United States)

Published in SPIE Proceedings Vol. 4732:
Photonic and Quantum Technologies for Aerospace Applications IV
Eric Donkor; Michael J. Hayduk; Andrew R. Pirich; Edward W. Taylor; Andrew R. Pirich; Eric Donkor, Editor(s)

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