High-brightness quantum well and quantum dot tapered lasers

N. Michel^a, M. Krakowski^a, I. Hassiaoui^a, M. Calligaro^a, M. Lecomte^a, O. Parillaud^a, P. Weinmann^b, C. Zimmermann^b, W. Kaiser^b, M. Kamp^b, A. Forchel^b, E.-M. Pavelescu^c, J.-P. Reithmaier^c, B. Sumpf^d, G. Erbert^d, M. Kelemen^e, R. Ostendorf^e, J.-M. García-Tijero^f, H. Odriozola^f, I. Esquivias^f

^a Alcatel-Thales III-V Lab, Route Départementale 128, 91767 Palaiseau, France
^b Technische Physik, Universitä´ Wuerzburg (UWUERZ), 97070 Wuerzburg, Germany
^c Institute of Nanostructure Technologies and Analytics, Universität Kassel, Heinrich-Plett-Str. 40, D-34132, Kassel, Germany
^d Ferdinand-Braun-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, D-12489 Berlin, Germany
^e Fraunhofer Institut f?ewandte Festk?rpohysik (IAF), Tullastraß¥ 72, 79108, Freiburg, Germany
^f Universidad Polité£®ica de Madrid (UPM), ETSI Telecomunicací¯®, Madrid 28040, Spain

Published in:
Proc. SPIE, vol. 6909, no. 690918 (2008).
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Abstract:
Several types of high-brightness near-infrared tapered quantum well and quantum dots tapered lasers are reviewed and compared. Recent developments include record-high brightness quantum well tapered lasers at 810 nm and 975 nm (up to 8.3 W CW, diffraction limited), high wall-plug efficiency gain-guided and index-guided tapered lasers (up to 57%), narrow slow axis far-field (2.5° FWHM) index-guided tapered lasers at 975 nm, wavelength-stable (down to 0.09 nm/K), high-brightness quantum dots tapered lasers at 920 and 975 nm, and quantum dots tapered laser bars (up to 14 W CW) at 920 nm, with narrow far-field in the slow axis (3° FWHM).

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