Abstract
This paper introduces a novel design of a tapered rib waveguide utilizing Hybrid Chalcogenide material. The waveguide is 4 mm in length and has a core of GAP-Se. GAP-Se is a combination of GeSe2, As2Se3, and PbSe. The upper and lower cladding are made of SiO2. The varying height of the rib layer results in a reduced effective mode area and an increased nonlinear coefficient. To achieve a desirable and intended supercontinuum spectrum in this waveguide, we utilize a pump pulse with a pulse duration of 100 fs and a power of 1 kW at a wavelength of 3.1 µm. We can change the waveguide dimensions to control and engineer the dispersion properties, which give us two zero dispersion wavelengths at 2.81 µm and 4.91 µm. As a result, we get a supercontinuum spectrum from 2.2 to 5 µm with a bandwidth of 2.8 µm. This design can be useful for different purposes such as biomedical, sensors, and optical coherence tomography.
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This manuscript has associated data in a data repository. [Authors’ comment: This work is theoretical research and the data used to support the findings of the study are available within the article.]
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This work was supported by Shahid Rajaee Teacher Training University under grant number 4975.
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M.S. and M.R.A. designed and simulated the structure, and drafted the manuscript. S.O. reviewed, and edited the manuscript. M.S. supervised, reviewed, and edited the manuscript. All authors read and approved the final manuscript. During the preparation of this work, the author(s) used ChatGPT in order to improve language. After using this tool/service, the author(s) reviewed and edited the content as needed and take(s) full responsibility for the content of the publication.
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Sheikhmolaee, M., Alizadeh, M.R., Olyaee, S. et al. Supercontinuum generation in tapered planar rib waveguide based on GAP-Se hybrid chalcogenide. Opt Quant Electron 56, 4 (2024). https://doi.org/10.1007/s11082-023-05666-z
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DOI: https://doi.org/10.1007/s11082-023-05666-z