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Proceedings Paper

High-speed programmable optical attenuator
Author(s): Nabeel A. Riza; Zahid Yaqoob
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Paper Abstract

A high-speed programmable optical attenuator is introduced that can provide high dynamic range and high resolution attenuation control. An acousto-optic Bragg cell has been used to realize the desired attenuator. Various practical architectures have been proposed to prove the concept. A typical acousto-optic deflector (AOD) based design offers a dynamic range of 46.11 dB. The average resolution is 3.08 dB/volt whereas the best resolution achieved is 0.39 dB/volt. The response time of the AO attenuator is in the sub microsecond(s) regime, and was observed as low as 0.175 microsecond(s) . The polarization dependent loss was about 0.7 dB, whereas the excess losses were about 1.5 dB.

Paper Details

Date Published: 13 July 2000
PDF: 5 pages
Proc. SPIE 4046, Advances in Optical Information Processing IX, (13 July 2000); doi: 10.1117/12.391937
Show Author Affiliations
Nabeel A. Riza, CREOL/Univ. of Central Florida (United States)
Zahid Yaqoob, CREOL/Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 4046:
Advances in Optical Information Processing IX
Dennis R. Pape, Editor(s)

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