Laser structuring, stress modification and Bragg grating inscription in silicon-core glass fibers
| Autor: | Seunghan Song, Kyriacos Kalli, Michael Fokine, Antreas Theodosiou, Ursula J. Gibson, Thomas Hawkins, John Ballato |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
All-silica fiber
PHOSFOS Materials science Optical fiber Cladding (coating) 02 engineering and technology 01 natural sciences law.invention 010309 optics Optics Fiber Bragg grating law 0103 physical sciences Plastic optical fiber Semiconductor lasers business.industry Bragg gratings Electrical Engineering - Electronic Engineering - Information Engineering 021001 nanoscience & nanotechnology Cladding (fiber optics) Electronic Optical and Magnetic Materials Fibers Engineering and Technology 0210 nano-technology business Hard-clad silica optical fiber Photonic-crystal fiber |
| Zdroj: | Optical Materials Express |
| Popis: | Semiconductor core fibers have numerous potential applications in optoelectronics and photonics, and the key to realizing these opportunities is controlled processing of the material. We present results on laser treatments for manipulating the core structure as well as the glass cladding. More specifically, using quasi-CW 10.6 µm radiation, the clad glass can be softened and the core can be controllably melted. This is shown to permit tapering, localized formation of optical resonators, and stress modification of the as-drawn fiber and structures within it. Shown for the first time to the authors' knowledge are Bragg gratings written by modification of the silicon/glass interface using fs laser illumination at 517 nm. The cores of these fibers show stress alterations, with indications of quasi-periodic stress relief in the glass. © 2017 Optical Society of America |
| Databáze: | OpenAIRE |
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