Journal
OPTICS EXPRESS
Volume 21, Issue 9, Pages 11506-11515Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.011506
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Funding
- European project Clarity [288304]
- European project Doggies [285446]
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SiGe alloys present a large Infra-Red transparency window and a full compatibility with the standard Complementary Metal Oxide Semiconductor processing making them suitable for applications in integrated optics. In this paper we report on Mlines characterization of Si1-xGex graded index waveguides at 2.15 mu m. First, a law giving the refractive index of a Si1-xGex alloy as a function of the Ge content x: n = 1.342x(2) + 0.295x + 3.451, has been experimentally established in the 0 < x < 0.4 range. Then, we have demonstrated that our methodology based on Mlines measurements can be used as short-loop non-destructive technique to provide feedback for sample growth. (C) 2013 Optical Society of America
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