期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 30, 期 24, 页码 2123-2126出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2018.2878288
关键词
Direct laser writing; mid-infrared; chalcogenide glass
资金
- French National Research Agency (ANR) through the COMI Project [ANR-17-CE24-0002]
- Ministry of Higher Education and Research
- Hauts de France Council
- European Regional Development Fund (ERDF) through the Contrat de Projets Etat-Region (CPER Photonics for Society P4S)
We present the realization of mid-infrared waveguide by ultrafast laser inscription technique in a chalco-genide glass. Our approach is based on multicore waveguide that consists in an alignment on a mesh of positive refractive index channels placed parallel to each other. Two different meshes are investigated with different refractive index contrasts between the channel and the glass matrix. A detailed analysis of the performances at a wavelength of 4.5 mu m shows propagation losses of 0.20 +/- 0.05 dB/cm and coupling efficiencies higher than 60%.
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