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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Lancaster, D. G.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2013Direct-write depressed cladding waveguide bragg-gratings in ZBLAN glass
- 2011Fifty percent internal slope efficiency femtosecond direct-written Tm 3+:ZBLAN waveguide lasercitations
- 2011Fabrication of depressed cladding waveguide Bragg-gratings in rare-earth doped heavy-metal fluoride glass
- 2010High power, narrow bandwidth and broadly tunable Tm3+, Ho 3+-co-doped aluminosilicate glass fibre lasercitations
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document
Fabrication of depressed cladding waveguide Bragg-gratings in rare-earth doped heavy-metal fluoride glass
Abstract
<p>Heavy-metal fluoride glass is well known for its high infrared transparency, especially in its most common composition ZrF<sub>4</sub>-BaF <sub>2</sub>-LaF<sub>3</sub>-AlF<sub>3</sub>-NaF (ZBLAN), which makes it an attractive host for mid-infrared emitting rare-earth ions. The mid-infrared wavelength region is of particular interest for many applications like molecular spectroscopy, process monitoring and infrared countermeasures, which demand a robust, simple and cheap laser source. We recently demonstrated a Tm <sup>3+</sup>:ZBLAN waveguide laser emitting at 1.9 m with a slope efficiency approaching 40% [1]. The device is based on novel laser-written depressed cladding waveguides with butt-coupled bulk mirrors. However to obtain a highly integrated and robust laser system a different approach to providing the resonator feedback must be applied. A significant innovation would be the integration of Bragg-gratings into the waveguide in the form of distributed feedback (DFB) or distributed Bragg reflector (DBR) structures, thereby resulting in a monolithic device with narrow line width output [2].</p>