Title :
Real-time adaptive 4–64 QAM coherent optical transmission over 320 km with FPGA-based transmitter and receiver
Author :
Yoshida, Manabu ; Hirooka, Toshihiko ; Kasai, Keisuke ; Nakazawa, Masataka
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
Abstract :
We demonstrate real-time adaptive optical coherent QAM transmission with variable multiplicities (4-, 16- and 64-QAM) using an FPGA-based transmitter and receiver. Rate-variable transmission (20~60 Gbit/s) was successfully achieved at 5 Gsymbol/s over 320 km.
Keywords :
adaptive modulation; field programmable gate arrays; optical modulation; optical receivers; optical transmitters; quadrature amplitude modulation; FPGA-based receiver; FPGA-based transmitter; bit rate 20 Gbit/s to 60 Gbit/s; distance 320 km; rate-variable transmission; real-time adaptive 4-64 QAM coherent optical transmission; Optical fibers; Optical polarization; Optical receivers; Optical transmitters; Quadrature amplitude modulation; Real-time systems;
Conference_Titel :
Optical Communication (ECOC), 2014 European Conference on
Conference_Location :
Cannes
DOI :
10.1109/ECOC.2014.6963904
