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High-speed quantum dot lasers and amplifiers for optical data communication

: Kuntz, M.; Fiol, G.; Szewc, C.; Lämmlin, M.; Meuer, C.; Bimberg, D.; Kovsh, A.; Ledentsov, N.; Ferber, S.; Schubert, C.; Jacob, A.; Steffan, A.; Umbach, A.


6th IEEE Conference on Nanotechnology, IEEE-NANO 2006. Vol.2
Piscataway, NJ: IEEE Operations Center, 2006
ISBN: 1-424-40078-3
IEEE Conference on Nanotechnology <6, 2006, Cincinnati>
Conference Paper
Fraunhofer HHI ()

Quantum dot based 1.3 m fiber-coupled laser and amplifier modules show 10 Gb/s and 40 Gb/s operation, respectively, with bit error rates below 10 -11. Amplifier chip gain up to 26 dB has been demonstrated. Mode-locked quantum dot lasers show optical pulses with widths below 1 ps and repetition frequencies up to 80 GHz. 710 fs pulses were amplified with 10 dB net gain and without pulse broadening.