Michel, N. and Ruiz, M. and Calligaro, M. and Robert, Y. and Lecomte, M. and Parillaud, O. and Krakowski, M. and Esquivias Moscardo, Ignacio and Odriozola Franco, Helena and Garcia Tijero, Jose Manuel and Kwok, C. H. and Penty, R. V. and White, I. H.
Two-sections tapered diode lasers for 1 Gbps free-space optical communications with high modulation efficiency..
In: "Novel In-Plane Semiconductor Lasers IX", 23/01/2010 - 28/01/2010, San Francisco, EEUU. ISBN 9780819480125.
High-power (more than 500 mW) and high-speed (more than 1 Gbps) tapered lasers at 1060 nm are required in freespace optical communications and (at lower frequencies of around 100 MHz) display applications for frequency doubling to the green. On a 4 mm-long tapered laser, we have obtained an open eye diagram at 700 Mbps, together with a high extinction ratio of 19 dB, a high optical modulation amplitude of 1.6 W, and a very high modulation efficiency of 19 W/A. On a 3 mm long tapered laser, we have obtained an open eye diagram at 1 Gbps, together with a high extinction ratio of 11 dB, an optical modulation amplitude of 530 mW, and a high modulation efficiency of 13 W/A.