Title :
Real-Time Software-Defined Multiformat Transmitter Generating 64QAM at 28 GBd
Author :
Schmogrow, R. ; Hillerkuss, D. ; Dreschmann, M. ; Huebner, M. ; Winter, M. ; Meyer, J. ; Nebendahl, B. ; Koos, C. ; Becker, J. ; Freude, W. ; Leuthold, J.
Author_Institution :
Karlsruhe Inst. of Technol. (KIT), Karlsruhe, Germany
Abstract :
We demonstrate a software-defined real-time optical multiformat transmitter. Here, eight different modulation formats are shown. Data rate and modulation formats are defined through software accessible look-up tables enabling format switching in the nanosecond regime without changing the transmitter hardware. No data are lost during the switching process. SP-64 quadrature amplitude modulation at 28 Gbd has been generated and tested. This allows us to generate a 336-Gb/s real-time pseudorandom bit sequence in a dual polarization setup.
Keywords :
optical modulation; optical transmitters; quadrature amplitude modulation; 64QAM; data rate; modulation formats; real-time software-defined multiformat transmitter; Bit error rate; Field programmable gate arrays; Optical modulation; Optical polarization; Optical transmitters; Real time systems; Advanced modulation formats; field-programmable gate array (FPGA); real-time; software defined transmitter;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2073698
