1.5 μm emission characteristics of Er3+-doped stoichiometric LiNbO3

被引：15
作者：
Kang, JG
Lee, M
Lee, S
Lim, K
Somu, K
Takekawa, S
Kitamura, K
机构：
[1] Yonsei Univ, Dept Mat Sci & Engn, Seoul 120749, South Korea
[2] Chungbuk Natl Univ, Dept Phys, Cheongju 361763, Chungbuk, South Korea
[3] Natl Inst Mat Sci, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan
来源：
APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 19期
关键词：
D O I：
10.1063/1.1818348
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The 1.5 mum emission characteristics of stoichiometric LiNbO3 crystals with different Er3+ doping levels of 0.2, 0.5, 1.0, and 2.0 mol % were investigated. All of the emission decays could be fitted by a single exponential curve. The lifetimes of the 1.5 mum transition (I-4(13/2)-->I-4(15/2)) were measured to be 3.0-3.2 ms, which are about 25% longer than those reported for conventional Er-doped congruent LiNbO3. Our analysis showed that the longer lifetime in stoichiometric LiNbO3 is likely to originate from the reduced density of intrinsic defects. (C) 2004 American Institute of Physics.
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页码：4367 / 4369
页数：3
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