Relationship between Propagation Loss and Crystallinity in Proton-Exchanged and Annealed LiNbO_3 Optical Waveguides

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概要

• 論文の詳細を見る

• The propagation loss of proton-exchanged and annealed LiNbO_3 optical waveguides was studied in relation to the change in the crystal phase. With annealing at relatively low temperatures (≤325℃) or for a short time (at 375 or 400℃, ≤15min), the propagation loss increases. Annealing at relatively high temperatures (375 to 400℃) for a longer time (30 to 45 min) greatly reduces the propagation loss. The reasons for the increase in propagation loss with insufficient annealing is the deterioration of crystallinity due to changes in the crystal phase and the coexistence of two different crystal phases.

• 社団法人応用物理学会の論文
• 1998-07-15

著者

• ITO Kenchi

  Advanced Research Laboratory, Hitachi, Ltd.

• Ito Kenchi

  Advanced Research Laboratory Hitachi Ltd.

• Kawamoto Kazumi

  Production Engineering Research Laboratory Hitachi Ltd.

• Ito Kenichi

  Advanced Research Laboratory Hitachi Ltd.

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• An Optical Deflector Using Collinear Acoustooptic Coupling Fabricated on Proton-Exchanged LiNbO_3
• Relationship between Propagation Loss and Crystallinity in Proton-Exchanged and Annealed LiNbO_3 Optical Waveguides

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