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EPRC is a leading institute in Europe for comparative research on public policy, with a particular focus on regional development policies. Spanning 30 European countries, EPRC research programmes have a strong emphasis on applied research and knowledge exchange, including the provision of policy advice to EU institutions and national and sub-national government authorities throughout Europe.

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Experimental observation of localized structures in medium size VCSELs

Averlant, Etienne E. and Tlidi, Mustapha M. and Thienpont, Hugo H. and Ackemann, Thorsten T. and Panajotov, Krassimir P. K.P. (2014) Experimental observation of localized structures in medium size VCSELs. Optics Express, 22 (1). pp. 762-772. ISSN 1094-4087

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Abstract

We report experimental evidence of spontaneous formation of localized structures in a 80μm diameter Vertical-Cavity Surface-Emitting Laser (VCSEL) biased above the lasing threshold and under optical injection. Such localized structures are bistable with the injected beam power and the VCSEL current. We experimentally investigate the formation of localized structures for different detunings between the injected beam and the VCSEL, and different injection beam waists.