Relationship between propagation loss and crystallinity in proton-exchanged and annealed LiNbO3 optical waveguides

Kenchi Ito, Kazumi Kawamoto

研究成果: Article査読

6 被引用数 (Scopus)

抄録

The propagation loss of proton-exchanged and annealed LiNbO3 optical waveguides was studied in relation to the change in the crystal phase. With annealing at relatively low temperatures (≤325°C) or for a short time (at 375 or 400°C, ≤15 min), the propagation loss increases. Annealing at relatively high temperatures (375 to 400°C) 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.

本文言語English
ページ(範囲)3977-3982
ページ数6
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
37
7
DOI
出版ステータスPublished - 1998 7月
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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