Enhanced Nonlinearity and Engineered Anomalous Dispersion in TeO<sub>2</sub>-coated Si<sub>3</sub>N<sub>4</sub> Waveguides
We propose designs of silicon nitride (Si<sub>3</sub>N<sub>4</sub>) waveguides with enhanced nonlinear parameter and engineered anomalous group velocity dispersion (GVD) by addition of tellurium oxide (TeO<sub>2</sub>) top-coating layers of various thicknesses. Th...
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IEEE
2020-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8995642/ |
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| author | Hamidu M. Mbonde Henry C. Frankis Jonathan D. B. Bradley |
| author_facet | Hamidu M. Mbonde Henry C. Frankis Jonathan D. B. Bradley |
| author_sort | Hamidu M. Mbonde |
| collection | DOAJ |
| description | We propose designs of silicon nitride (Si<sub>3</sub>N<sub>4</sub>) waveguides with enhanced nonlinear parameter and engineered anomalous group velocity dispersion (GVD) by addition of tellurium oxide (TeO<sub>2</sub>) top-coating layers of various thicknesses. The proposed waveguides have calculated nonlinear parameters of up to three times that of stoichiometric Si<sub>3</sub>N<sub>4</sub> and exhibit anomalous GVD at near infrared wavelengths. The GVD of such waveguides can be tuned between the normal and anomalous regime with different zero dispersion wavelengths by adjusting the thickness of TeO<sub>2</sub> coating. These designs offer promise of higher performance nonlinear devices on a standard low-loss Si<sub>3</sub>N<sub>4</sub> platform with the possibility of integration of active functionalities owing to higher solubility of rare earth dopants in tellurium oxide. |
| format | Article |
| id | doaj-art-a43e6587dc8b42cd8335629bd45fcd2d |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-a43e6587dc8b42cd8335629bd45fcd2d2025-08-20T03:15:50ZengIEEEIEEE Photonics Journal1943-06552020-01-0112211010.1109/JPHOT.2020.29732978995642Enhanced Nonlinearity and Engineered Anomalous Dispersion in TeO<sub>2</sub>-coated Si<sub>3</sub>N<sub>4</sub> WaveguidesHamidu M. Mbonde0https://orcid.org/0000-0003-1738-121XHenry C. Frankis1Jonathan D. B. Bradley2Department of Engineering Physics, McMaster University, Hamilton, Ontario, CanadaDepartment of Engineering Physics, McMaster University, Hamilton, Ontario, CanadaDepartment of Engineering Physics, McMaster University, Hamilton, Ontario, CanadaWe propose designs of silicon nitride (Si<sub>3</sub>N<sub>4</sub>) waveguides with enhanced nonlinear parameter and engineered anomalous group velocity dispersion (GVD) by addition of tellurium oxide (TeO<sub>2</sub>) top-coating layers of various thicknesses. The proposed waveguides have calculated nonlinear parameters of up to three times that of stoichiometric Si<sub>3</sub>N<sub>4</sub> and exhibit anomalous GVD at near infrared wavelengths. The GVD of such waveguides can be tuned between the normal and anomalous regime with different zero dispersion wavelengths by adjusting the thickness of TeO<sub>2</sub> coating. These designs offer promise of higher performance nonlinear devices on a standard low-loss Si<sub>3</sub>N<sub>4</sub> platform with the possibility of integration of active functionalities owing to higher solubility of rare earth dopants in tellurium oxide.https://ieeexplore.ieee.org/document/8995642/Integrated opticssilicon nitridetellurium oxidenonlinear opticsdispersion engineering |
| spellingShingle | Hamidu M. Mbonde Henry C. Frankis Jonathan D. B. Bradley Enhanced Nonlinearity and Engineered Anomalous Dispersion in TeO<sub>2</sub>-coated Si<sub>3</sub>N<sub>4</sub> Waveguides IEEE Photonics Journal Integrated optics silicon nitride tellurium oxide nonlinear optics dispersion engineering |
| title | Enhanced Nonlinearity and Engineered Anomalous Dispersion in TeO<sub>2</sub>-coated Si<sub>3</sub>N<sub>4</sub> Waveguides |
| title_full | Enhanced Nonlinearity and Engineered Anomalous Dispersion in TeO<sub>2</sub>-coated Si<sub>3</sub>N<sub>4</sub> Waveguides |
| title_fullStr | Enhanced Nonlinearity and Engineered Anomalous Dispersion in TeO<sub>2</sub>-coated Si<sub>3</sub>N<sub>4</sub> Waveguides |
| title_full_unstemmed | Enhanced Nonlinearity and Engineered Anomalous Dispersion in TeO<sub>2</sub>-coated Si<sub>3</sub>N<sub>4</sub> Waveguides |
| title_short | Enhanced Nonlinearity and Engineered Anomalous Dispersion in TeO<sub>2</sub>-coated Si<sub>3</sub>N<sub>4</sub> Waveguides |
| title_sort | enhanced nonlinearity and engineered anomalous dispersion in teo sub 2 sub coated si sub 3 sub n sub 4 sub waveguides |
| topic | Integrated optics silicon nitride tellurium oxide nonlinear optics dispersion engineering |
| url | https://ieeexplore.ieee.org/document/8995642/ |
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