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Effect of subgrain boundaries on domain-inverted structure in periodically poled near-stoichiometric LiTaO3 crystal

✍ Scribed by Masaru Nakamura; Kazuya Terabe; Shunji Takekawa; Somu Kumaragurubaran; Yu Nan-Ei; Sunao Kurimura; Kenji Kitamura

Book ID: 104075400
Publisher: Elsevier Science
Year: 2008
Tongue: English
Weight: 989 KB
Volume: 31
Category: Article
ISSN: 0925-3467
DOI: 10.1016/j.optmat.2008.04.011

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✦ Synopsis

We investigated the effect of subgrain boundaries on periodic domain-inverted structures with a period of $30 lm in near-stoichiometric LiTaO 3 (SLT) crystals and found that they negligibly affected the structures. Using SLT crystals having subgrain boundaries and a quasi-phase matching technique, we fabricated a 2-mm-thick, 60-mm-long periodically poled SLT frequency converter with a domain-inverted structure with a 30.5-lm period and demonstrated optical parametric oscillation.

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