Abstract
The role of the taper angle in the performance of tapered semiconductor optical amplifiers emitting at 1.57 \(\upmu \)m is analyzed by means of simulations with a self-consistent steady state electro-optical and thermal simulator. The results indicate that the self-focusing caused by carrier lensing is delayed to higher output powers for devices with taper angle slightly higher than the free diffraction angle and therefore a higher power with beam quality is attainable with these devices at the expenses of a lower efficiency.
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This work was supported by the European Commission through the project BRITESPACE under Grant Agreement No. 313200 and by Ministerio de Economía y Competitividad of Spain under project TEC2012-38864-C03-02.
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Tijero, J.M.G., Borruel, L., Vilera, M. et al. Analysis of the performance of tapered semiconductor optical amplifiers: role of the taper angle. Opt Quant Electron 47, 1437–1442 (2015). https://doi.org/10.1007/s11082-014-0108-8
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DOI: https://doi.org/10.1007/s11082-014-0108-8