Photonic crystals in proton-exchanged LiNbO3 waveguides for photonic applications
Jun, D. Jia Wei Kumar, V.S. Png, C.E. Bettiol, A.A. Danner, A.J.
Jun, D.
Jia Wei
Kumar, V.S.
Png, C.E.
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Abstract
Photonic crystals realized in LiNbO3 have a great potential to reduce the size and increase the functionality of integrated optical devices. In order to accomplish these aims, fabrication know-how must be mastered yet it remains relatively uncharted. In this work we report the fabrication and optical characterization of photonic crystal structures in annealed proton exchanged (APE) LiNbO3 waveguides. In our work, channel waveguides were fabricated by photolithography patterning followed by immersing LiNbO 3 wafers in molten benzoic acid at 235°C for 5 h. The thickness and the composition profiles of the APE waveguides were measured using the secondary ion mass spectroscopy (SIMS) method. The experimental characterization of the photonic crystal waveguides was performed and a photonic stop band with good sharpness can be observed from the transmission spectra. © 2012 IEEE.
Keywords
lithium niobate, photonic band gap, photonic crystals, SIMS
Source Title
2012 Photonics Global Conference, PGC 2012
Publisher
Series/Report No.
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Date
2012
DOI
10.1109/PGC.2012.6458000
Type
Conference Paper