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Design of Er3+-doped chalcogenide glass laser for MID-IR application |
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| Authors: | F Prudenzano L Mescia LA Allegretti M De Sario T Palmisano F Smektala V Moizan V Nazabal J Troles |
| Institution: | 1. DIASS – Dipartimento di Ingegneria dell’Ambiente e per lo Sviluppo Sostenibile, Politecnico di Bari, Viale del Turismo 8, Taranto, Italy;2. DEE – Dipartimento di Elettrotecnica ed Elettronica – Politecnico di Bari Via E. Orabona 4, 70125 Bari, Italy;3. Institut Carnot de Bourgogne UMR 5209 CNRS – Université de Bourgogne, Dpt OMR/Equipe SLCO, 9 Av. Alain Savary, BP 47870, 21078 Dijon, France;4. Sciences Chimiques de Rennes, UMR 6226 CNRS – Université de Rennes 1, Equipe Verres et Céramiques, 35042 Rennes, France |
| Abstract: | The feasibility of a photonic crystal fiber laser (PCF laser), made of a novel Er3+-doped chalcogenide glass and operating at the wavelength λs = 4.5 μm is investigated. The design is performed on the basis of spectroscopic and optical parameters measured on a fabricated Er3+-doped Ga5Ge20Sb10S65 chalcogenide bulk sample. The simulations have been performed by employing a home made numerical code that solves the multilevel rate equations and the power propagation equations via a Runge-Kutta iterative method. The numerical results indicate that a laser exhibiting slope efficiency close to the maximum theoretical one and a wide tunability in the wavelengths range where the atmosphere is transparent can be obtained. |
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