Huawei Marine Networks has announced it has achieved another distance record over unrepeatered systems, achieving a transmission distance of 648.5km during a laboratory trial.
During the trial in Beijing, Huawei used its self-developed enhanced raman amplifier (ERPC) and remote optical pump amplifier (ROPA) technology on a 100G channel over an ultra-low loss optical fiber, to improve pump optical power and performance.
Huawei Marine used the same technology to set an unrepeatered distance record of 627km in April, but has now pushed this further using coding gain optimizations.
The operator’s 100G transmission technology combines new technologies including polarization mode dispersion combined with single-carrier binary phase shift keying (PDM-BPSK) and third-generation soft decision technology.
“Huawei Marine has achieved another breakthrough in unrepeatered system design which demonstrates our continuous commitment to investing in high-performance technology,” Huawei Marine VP of technology Zhang Shigui said.
“When used commercially, this technology will broaden the range of unrepeatered system applications and create value for our customers.”