Characterization of mid-infrared optical loss and nonlinear refractive index in InP based waveguides

被引：0
|
作者：
Zhang, K. [1 ]
Boehm, G. [1 ]
Belkin, M. A. [1 ]
机构：
[1] Tech Univ Munich, Walter Schottky Inst, Coulombwall 4, D-85748 Garching, Germany
来源：
INTEGRATED OPTICS: DEVICES, MATERIALS, AND TECHNOLOGIES XXVII | 2023年 / 12424卷
关键词：
mid-infrared; InP; optical loss; nonlinear refractive index; photonic integration; CASCADE LASERS;
D O I：
10.1117/12.2647891
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We report experimental measurements of optical loss and n(2) nonlinearity in two possible InP-based mid-IR waveguiding platforms with waveguide cores made of In0.53Ga0.47As and GaAs0.51Sb0.49, both lattice-matched and grown on InP. We report the first broadband (5-11 mu m) characterization and optimization of optical losses within InP/InGaAs and InP/GaAsSb based waveguides with losses as low as 0.5 dB/cm at shorter wavelengths and 4-5 dB/cm at longer wavelengths of this wavelength range. In addition, we measure the values of Kerr nonlinearity in these waveguides to be approximately an order of magnitude higher than that reported for Si- and SiGe-based waveguides in mid-IR.
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页数：4
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