Suppression sidelobes of AOTF with different weighting functions

AOTF has sidelobe as well as other filters and sidelobe level reaches to some extent, cross-talk will occur, then sidelobe suppression becomes essential. Ways of Apodization are birefringent apodization, weighted coupling, etc. The optimal optical filter responses of AOTF with weighting function is...

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Bibliographic Details
Main Authors: Yue-hong, Zhu, Hai, Qi, Ji-hua, Wen, Qiang, Liu, Yuan, Wang
Format: Conference Proceeding
Language:English
Subjects:
Acoustic waveguides
Acoustic waves
Directional couplers
Equations
Frequency
Optical filters
Optical surface waves
Optical tuning
Optical waveguides
Surface acoustic waves
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Summary:AOTF has sidelobe as well as other filters and sidelobe level reaches to some extent, cross-talk will occur, then sidelobe suppression becomes essential. Ways of Apodization are birefringent apodization, weighted coupling, etc. The optimal optical filter responses of AOTF with weighting function is gained, which is lower than −41dB.
ISSN:2162-108X
2162-1098