225-Gb/s PAM4 Operation Using Lumped-Electrode-Type EA-DFB Laser for 5- and 10-km Transmission with Low TDECQ
Kazuki Nishimura, Hideaki Asakura, Syunya Yamauchi, Takanori Suzuki, Yoshihiro Nakai, Yoriyoshi Yamaguchi, Takeo Kageyama, Masatoshi Mitaki, Yuma Endo, Kazuhiko Naoe
Abstract
Both 5-km and 10-km transmission was demonstrated under 225-Gb/s PAM4 operation using EA-DFB lasers. We confirmed low TDECQ values of 2.0~3.2 dB for 5 km in the CWDM range and 10 km at 1293.5 nm.
Topics & Concepts
Transmission (telecommunications)LaserMaterials scienceOptoelectronicsOpticsElectrodeDistributed feedback laserWavelength-division multiplexingPhysicsElectrical engineeringEngineeringWavelengthQuantum mechanicsSemiconductor Lasers and Optical DevicesOptical Network TechnologiesPhotonic and Optical Devices