2011年1月
Optical Properties of a Waveguide Written Inside a LiTaO3 Crystal by Irradiation with Focused Femtosecond Laser Pulses
OPTICAL REVIEW
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- 巻
- 18
- 号
- 1
- 開始ページ
- 166
- 終了ページ
- 170
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/s10043-011-0017-z
- 出版者・発行元
- OPTICAL SOC JAPAN
Optical waveguides were fabricated by modifying the optical properties inside a LiTaO3 crystal by irradiation with femtosecond laser pulses, and the performance and optical properties of the waveguide were investigated. On the basis of near-field pattern of the light guided through the waveguides, the optimum writing conditions such as the pulse energy and the pulse duration were determined. The waveguide written inside a LiTaO3 crystal had a strong polarization dependence of guided light. Observation by a polarized microscope suggested that the stress distribution around the photoexcited region should be responsible for the polarization dependence of guided light. In addition, the second harmonic generation from a laser beam passing through the waveguide was observed, which suggests that the ferroelectric properties of LiTaO3 were preserved after the photoexcitation. (C) 2011 The Japan Society of Applied Physics
- リンク情報
- ID情報
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- DOI : 10.1007/s10043-011-0017-z
- ISSN : 1340-6000
- Web of Science ID : WOS:000287248800035