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56 Gbit/s InGaAlAs-MQW 1300 nm Electroabsorption-Modulated DFB-Lasers with Impedance Matching Circuit

: Klein, H.; Bornholdt, C.; Przyrembel, G.; Sigmund, A.; Molzow, W.-D.; Bach, H.-G.; Moehrle, M.

Institution of Engineering and Technology -IET-:
39th European Conference and Exhibition on Optical Communication, ECOC 2013
ISBN: 978-1-84919-759-5
European Conference and Exhibition on Optical Communication (ECOC) <39, 2013, London>
Conference Paper
Fraunhofer HHI ()

We have developed electroabsorption modulated DFB Lasers at 1305 nm using an identical InGaAlAs MQW core in the DFB and the EAM section. A 50Omega matching circuit is realized on-chip giving an f 3dB of 39.4 GHz. We present 56 Gbit/s eyes with a dynamic extinction ratio of 9.5 dB. The fiber coupled output power under modulation is +5 dBm at 45degC.