Nonlinear measurement of mid-infrared absorption in AlOx waveguides

被引：10
|
作者：
Ravaro, M. [1 ]
Guillotel, E. [1 ]
Le Du, M. [1 ]
Manquest, C. [1 ]
Marcadet, X. [2 ]
Ducci, S. [1 ]
Berger, V. [1 ]
Leo, G. [1 ]
机构：
[1] Univ Paris Diderot, Lab Mat & Phenomenes Quant, CNRS, UMR 7162, F-75205 Paris 13, France
[2] Alcatel Thales III V Lab, Route Dept 128, F-91767 Palaiseau, France
来源：
APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 15期
关键词：
D O I：
10.1063/1.2911747
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report a quantitative study on the absorption of oxidized-AlAs (AlOx) integrated thin layers in the mid-infrared range (2-4 mu m). An AlOx absorption coefficient of 1600 cm(-1) is measured in a nonlinear waveguide, by investigating the phase-matching bandwidth of parametric fluorescence. Since mid-infrared optical losses of the idler mode are inferred from the corresponding signal features in the 1-2 mu m range, our technique takes advantage of common near-infrared sources and detectors. (C) 2008 American Institute of Physics.
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页数：3
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