Asymmetric Al-free active region laser structure for high-brightness tapered lasers at 975 nm - Michel, N.; Calligaro, M.; Lecomte, A.; Parillaud, O.; Krakowski, M.; Tijero, J. M. G.; Odriozola, H.; Esquivias, I.; (Proceedings Of Spie - The International Society For Optical Engineering, 2008)