Abstract
Photonic crystal (PhC) structure is useful for fabrication of highly integrated optical circuit on single substrate. However, it was reported that repetition of chemical etching process to mount various functions damages the structure itself. Then, a new assembly process of functional units is proposed in this paper. For the assembly of butt joint, transmission and reflection on joint surface is critical. Then, measurement results of butt joint in PhC waveguide is evaluated to show the transmission and reflection characteristics. The waveguide shift \(\varDelta \) was situated in the middle of PhC waveguide by composing two separated basement plate of aluminum. It was found that the waveguide shift \(\varDelta \) up to half of waveguide width is not seriously critical for the transmission and reflection. Application of proposed assembly technique by butt joint is hopeful for fabrication of PhC integrated circuit.
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Acknowledgment
Authors express our appreciation to Mr. H. Ono and Mr. S Furuie of Fukuoka Institute of Technology as part of their undergraduate research under supervision by H. Maeda in 2017–18.
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Maeda, H., Haari, K., Meng, X.Z., Higashinaka, N. (2019). Butt-Joint Assembly of Photonic Crystal Waveguide Units for Large Scale Integration of Circuits with Variety of Functions. In: Barolli, L., Kryvinska, N., Enokido, T., Takizawa, M. (eds) Advances in Network-Based Information Systems. NBiS 2018. Lecture Notes on Data Engineering and Communications Technologies, vol 22. Springer, Cham. https://doi.org/10.1007/978-3-319-98530-5_71
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DOI: https://doi.org/10.1007/978-3-319-98530-5_71
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