Mode conversion of acoustooptic interaction in crossed channel waveguide

研究成果: Article同行評審

摘要

In order to study the mechanisms of acoustooptic interactions in a channel waveguide structure, multimode crossed channel waveguides are fabricated on YZ LiNbO3 substrate. Besides, an intedigital transduce centered at 320 MHz is made on the same substrate for AO interaction by its generated surface acoustic wave. Butt coupling is used for the coupling between Helium-Neon Laser and channel waveguide. The mode conversion due to the AO interaction in multimode channel waveguide is found. This mode conversions only occur among harmonic modes but not TE to TM modes. Those phenomena are studied and demonstrated theoretically and experimentally. In conclusion, the mode conversion of AO interaction in channel waveguide structure is caused by the acoustic beam spread. This result can be explained by phase matching condition.

原文English
頁(從 - 到)136-138
頁數3
期刊Proceedings of SPIE - The International Society for Optical Engineering
463
DOIs
出版狀態Published - 1984 5月 31

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 電腦科學應用
  • 應用數學
  • 電氣與電子工程

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