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Proceedings Paper

Properties of integrated acousto-optic tunable filters in multiwavelength operation for WDM system
Author(s): Hong Zhang Hu; Y. N. Li; Jisheng Yang; F. Geng
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Paper Abstract

Integrated Acoustooptical Tunable Filters (AOTF) have great potential application in WDM optical networks because of some advanced properties, especially the unique property of simultaneous multiwavelength filtering. In this paper, we have developed time-dependent coupling mode equations with multiple acoustic waves travelling simultaneously. Take four acoustic waves as an example, we have shown some numerical results of conversion characteristics based on the developed coupling mode equations. We have also analyzed the fluctuation of the main peak, the center wavelength and the full width of half-maximum (FWHM) with respect to time. After discussing the drawbacks of the collinear AOTF in multiwavelength operation, especially the serious distort of conversion characteristics and the high crosstalk for narrow channel spacing, we propose for the first time that the conversion characteristics of AOTF can be improved by using quasi-collinear acoustooptical filters.

Paper Details

Date Published: 16 October 2001
PDF: 6 pages
Proc. SPIE 4603, Fiber Optics and Optoelectronics for Network Applications, (16 October 2001); doi: 10.1117/12.444532
Show Author Affiliations
Hong Zhang Hu, Tianjin Univ. (China)
Y. N. Li, Tianjin Univ. (China)
Jisheng Yang, Tianjin Univ. (China)
F. Geng, China Aerospace Corp. (China)

Published in SPIE Proceedings Vol. 4603:
Fiber Optics and Optoelectronics for Network Applications

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