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High-efficiency and easy-to-fabricate integrated plasmonic grating couplers for the telecommunication wavelength range
D.S. Zemtsov 1,2, A.K. Zemtsova 1,2, A.S. Smirnov 1, K.N. Garbuzov 1, R.S. Starikov 2, S.S. Kosolobov 1, V.P. Drachev 1

1 Skolkovo Institute of Science and Technology (Skoltech),
121205, Russian Federation, Moscow, Bolshoy boulevard, 30, 1;
2 National Research Nuclear University «MEPhI»,
115409, Russian Federation, Moscow, Kashirskoe rd., 31

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DOI: 10.18287/2412-6179-CO-1168

Pages: 224-229.

Full text of article: Russian language.

Abstract:
The paper describes results of the numerical simulation and experimental characterization of plasmonic gratings and waveguides in the optical range of 1520 – 1630 nm. Gold structures were coated with a 630-nm thick tetraethylorthosilicate layer to achieve higher coupling efficiency for plasmonic gratings using lensed optical probes. We experimentally demonstrated gold input/output plasmonic gratings with an efficiency of about – 3.8 ± 0.2 dB per grating. The measured loss of the plasmonic mode propagating over the surface of the gold waveguide was 0.14 ± 0.02 dB / μm. The work was carried out with the aim of studying integrated plasmonic structures for the development of a hybrid photonic-plasmonic integrated technology.

Keywords:
integrated optics, integrated plasmonics, diffraction and gratings, waveguides, optical telecommunication range.

Citation:
Zemtsov DS, Zemtsova AK, Smirnov AS, Garbuzov KN, Starikov RS, Kosolobov SS, Drachev VP. High-efficiency and easy-to-fabricate integrated plasmonic grating couplers for the telecommunication wavelength range. Computer Optics 2023; 47(2): 224-229. DOI: 10.18287/2412-6179-CO-1168.

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