TY - JOUR
T1 - Single-Channel 400-Gb/s OTDM-32 RZ/QAM Coherent Transmission Over 225 km Using an Optical Phase-Locked Loop Technique
AU - Kasai, Keisuke
AU - Omiya, Tatsunori
AU - Guan, Pengyu
AU - Yoshida, Masato
AU - Hirooka, Toshihiko
AU - Nakazawa, Masataka
PY - 2010/4/15
Y1 - 2010/4/15
N2 - A single-channel 400-Gb/s transmission with a polarization-multiplexed, 10-Gsymbol/s, four-optical time-division multiplexed (OTDM) 32 return-to-zero/quadrature amplitude modulation (RZ/QAM) scheme is demonstrated for the first time. By using an optical phase-locked loop technique and a clock recovery circuit, we have successfully obtained a very stable pulsed-local oscillator whose phase was locked to the transmitter, and achieved precise demultiplexing and demodulation simultaneously. As a result, 400-Gb/s data were transmitted over 225 km with a bit-error-rate performance below the forward-error correction limit. Furthermore, we also realized a 320-Gb/s to 450-km transmission with an OTDM 16 RZ/QAM scheme.
AB - A single-channel 400-Gb/s transmission with a polarization-multiplexed, 10-Gsymbol/s, four-optical time-division multiplexed (OTDM) 32 return-to-zero/quadrature amplitude modulation (RZ/QAM) scheme is demonstrated for the first time. By using an optical phase-locked loop technique and a clock recovery circuit, we have successfully obtained a very stable pulsed-local oscillator whose phase was locked to the transmitter, and achieved precise demultiplexing and demodulation simultaneously. As a result, 400-Gb/s data were transmitted over 225 km with a bit-error-rate performance below the forward-error correction limit. Furthermore, we also realized a 320-Gb/s to 450-km transmission with an OTDM 16 RZ/QAM scheme.
KW - Coherent transmission
KW - optical phase-locked loop (OPLL)
KW - optical time-division multiplexing (OTDM)
KW - polarization-multiplexing (PM)
KW - quadrature amplitude modulation (QAM)
UR - http://www.scopus.com/inward/record.url?scp=85008043349&partnerID=8YFLogxK
U2 - 10.1109/LPT.2010.2042708
DO - 10.1109/LPT.2010.2042708
M3 - Article
AN - SCOPUS:85008043349
SN - 1041-1135
VL - 22
SP - 562
EP - 564
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 8
ER -