Ayodele Oladeji

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We discuss the modelling and design of mid-infrared fibre lasers for realisation in a chalcogenide glass host doped with lanthanide ions. Three lanthanide dopant ions are considered: terbium, dysprosium and praseodymium. The laser configuration exploits the advantages of a cascade lasing scheme, which allows for a reduction in both the side effects of the(More)
Lanthanide ion doped glass materials find many applications in photonics. In recent years a particular attention has been drawn to lanthanide ion doped low phonon energy glasses and their potential application as amplifiers and lasers delivering mid-infrared coherent light. We present a comprehensive study of the photoluminescence measured from chalcogenide(More)
Erbium doped silicon dioxide (Er<sup>3+</sup>: SiO<sub>2</sub>) was obtained by the sol-gel method. Efficient green and red upconversion luminescence was observed using 488 nm (70 mW, continuous wave) and 800 nm (25 ns pulsed) excitation. Upconversion study of luminescence was done for 3 different samples (1%, 4%, 10%: Er<sup>3+</sup>) of sol-gel(More)
We consider the modelling and design of high power ZBLAN glass based erbium (III) doped fibre lasers operating in the Q-switched regime. The detailed description of all models used is given. The results are calculated for a standard set of modelling parameters used in the literature, which correspond to a commercially available erbium doped ZBLAN fibre. We(More)
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