Lu, Gd codoped KY(WO4)2:Yb epitaxial layers:: towards integrated optics based on KY(WO4)2

被引：46
|
作者：
Gardillou, Florent [1 ]
Romanyuk, Yaroslav E. [1 ]
Borca, Camelia N. [1 ]
Salathe, Rene-Paul [1 ]
Pollnau, Markus [1 ]
机构：
[1] Ecole Polytech Fed Lausanne, Inst Imaging & Appl Opt, Adv Photo Lab, CH-1015 Lausanne, Switzerland
来源：
OPTICS LETTERS | 2007年 / 32卷 / 05期
关键词：
D O I：
10.1364/OL.32.000488
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Codoping KY(WO4)(2):Yb layers with optically inert Lu and Gd ions allows a large increase of the refractive index contrast with respect to KY(WO4)(2) substrates. This paves the way for the realization of integrated optical circuits based on this very promising material. First riblike waveguide structures have been fabricated and propagation losses below 1 dB/cm have been evaluated. A Y-junction with a splitting ratio close to 1:1 and additional losses of 1.4 dB has also been demonstrated. (c) 2007 Optical Society of America.
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页码：488 / 490
页数：3
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