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High-speed digital-to-analog converter concepts

: Schmidt, C.; Kottke, C.; Jungnickel, V.; Freund, R.


Li, G. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Next-Generation Optical Communication: Components, Sub-Systems, and Systems VI : 31 January-2 February 2017, San Francisco, California, United States
Bellingham, WA: SPIE, 2017 (Proceedings of SPIE 10130)
ISBN: 978-1-5106-0701-9
ISBN: 978-1-5106-0702-6
Paper 101300N, 9 S.
Conference "Next-Generation Optical Communication - Components, Sub-Systems, and Systems" <6, 2017, San Francisco/Calif.>
Fraunhofer HHI ()

In todays fiber-optic communication systems, the bandwidth of the photonic components, i.e. modulators and photo diodes, is way greater than that of their electrical counterparts, i.e. digital-to-analog converters (DACs) and analog-to-digital converters (ADCs). In order to increase the transmission capacity, the bandwidth limitations need to be overcome. We review the progress and the recent results in the field of high-speed DACs, which are desirable for software-defined transmitters. Furthermore, we evaluate interleaving concepts regarding their ability to overcome the above mentioned limitations and demonstrate recent experimental results for a bandwidth interleaved DAC with 40 GHz analog electrical bandwidth.