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Optical loss reduction in high-index-contrast chalcogenide glass waveguides via thermal reflow.
Content Provider | Semantic Scholar |
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Author | Hu, Juejun Feng, Ning-Ning Carlie, Nathan A. Petit, Laeticia C. Agarwal, Anu Richardson, Kathleen Kimerling, Lionel C. |
Copyright Year | 2010 |
Abstract | A thermal reflow technique is applied to high-index-contrast, sub-micron waveguides in As(2)S(3) chalcogenide glass to reduce the sidewall roughness and associated optical scattering loss. We show that the reflow process effectively decreases sidewall roughness of chalcogenide glass waveguides. A kinetic model is presented to quantitatively explain the sidewall roughness evolution during thermal reflow. Further, we develop a technique to calculate waveguide optical loss using the roughness evolution model, and predict the ultimate low loss limit in reflowed high-index-contrast glass waveguides. Up to 50% optical loss reduction after reflow treatment is experimentally observed, and the practical loss limiting factors are discussed. |
File Format | PDF HTM / HTML |
DOI | 10.1364/OE.18.001469 |
PubMed reference number | 20173975 |
Journal | Medline |
Volume Number | 18 |
Issue Number | 2 |
Alternate Webpage(s) | http://web.mit.edu/hujuejun/www/My%20Papers/Journal%20Papers/Optical%20loss%20reduction%20in%20high-index-contrast%20chalcogenide%20glass%20waveguides%20via%20thermal%20reflow.pdf |
Alternate Webpage(s) | https://doi.org/10.1364/OE.18.001469 |
Journal | Optics express |
Language | English |
Access Restriction | Open |
Content Type | Text |
Resource Type | Article |