Weighted coupling to reduce sidelobe of the integrated acousto-optic tunable filters

Jianmin Cui; Lihui Feng; Wei Liu; Yaguang Tian; Fang Cui; Yunan Sun

doi:10.1117/12.521491

30 April 2004 Weighted coupling to reduce sidelobe of the integrated acousto-optic tunable filters

Jianmin Cui, Lihui Feng, Wei Liu, Yaguang Tian, Fang Cui, Yunan Sun

Proceedings Volume 5279, Optical Fibers and Passive Components; (2004) https://doi.org/10.1117/12.521491
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China

Abstract

The Integrated acousto-optic tunable filter have the potential to perform the OADM or OXC functions, which play significant role in WDM optical network. The characteristic of the acousto-optic mode conversion is sinc²-like functions with high sidelobe intrinsic. The high sidelobe level lead to serious crosstalk in the WDM optical network. The theory of weighted coupling for IAOTF has been presented. And the filter response using four suggested weighted functions has been calculated with the matrix methods. Significant suppression of sidelobe level has been achieved by employing the techniques of weighted coupling. It is a valid approach to reduce the sidelobe of IAOTF by choosing propriety weighted function and a realized way.

Citation Download Citation

Jianmin Cui, Lihui Feng, Wei Liu, Yaguang Tian, Fang Cui, and Yunan Sun "Weighted coupling to reduce sidelobe of the integrated acousto-optic tunable filters", Proc. SPIE 5279, Optical Fibers and Passive Components, (30 April 2004); https://doi.org/10.1117/12.521491

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