Wet etching techniques for the realisation of novel electrode structures on X and Z-cut lithium niobate

H.W. Chong1, A. Mitchell1, M.W. Austin1
1Australian Photonic CRC, RMIT University, Melbourne, Australia

Tóm tắt

Lithium niobate (LiNbO/sub 3/) is a popular material for the implementation of many photonic devices, but most often for broadband electro-optic (EO) modulators. Effective modulators may be realised through careful design of the RF electrodes. The most successful electrode designs incorporate some form of surface machining and thus in order to explore novel practical electrode structures, it has been necessary to develop means of etching the LiNbO/sub 3/ surface precisely. In this paper, we present the etching of LiNbO/sub 3/ using a proton exchange (PE) wet etching method including a detailed comparison of the etch properties of X and Z-cut LiNbO/sub 3/.

Từ khóa

#Wet etching #Electrodes #Protons #Optical modulation #Optical attenuators #Australia #Photonics #Hafnium #Lithium niobate #Electrooptic modulators

Tài liệu tham khảo

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