Chromatic Dispersion in Ge-Doped SiO2-Based Single Mode Fibres due to Temperature Dependence of the Ultraviolet Absorption: Numerical and Experimental Results
| Autor: | Paulo P. Monteiro, Rute A. S. Ferreira, Sónia S. Nobre, João L. Pinto, Luís D. Carlos, Armando N. Pinto, Paulo André |
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| Rok vydání: | 2006 |
| Předmět: |
Materials science
Optical fiber business.industry Mechanical Engineering Doping Optical communication Single-mode optical fiber Condensed Matter Physics Molecular physics law.invention Wavelength Mechanics of Materials Absorption band law Dispersion (optics) Optoelectronics General Materials Science business Absorption (electromagnetic radiation) |
| Zdroj: | Materials Science Forum. :369-376 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.514-516.369 |
| Popis: | The main information transmission limitation in optical communications employing SiO2 optical fibres is imposed by the optical pulses temporal broadening, resulting from the dispersive properties of the transmission medium (chromatic dispersion). Usually, this dispersion is modelled assuming a -0.4 meV/°C dependence of the 11 eV gap energy. We have monitored the 4.3 eV absorption band, with temperature and obtained a thermal dependence of -0.026 meV/°C. With this value we can predict the first and second order chromatic dispersion for a wavelength of 1550 nm. |
| Databáze: | OpenAIRE |
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