[WD2] Advanced Transceiver

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[WD2-1] Behavior Model and Nonlinearity Characterization of Coherent Optical DAC Transmitters

○Tong Ye¹, Xiaofei Su¹, Ke Zhang¹, Jingnan Li¹, Shiyu Shi¹, Yangyang Fan¹, Shinsuke Tanaka², Yohei Sobu², Motoyuki Nishizawa², Hisao Nakashima², Takeshi Hoshida², Zhenning Tao¹ (1.Fujitsu Research & Development Center Co. Ltd., 2.Fujitsu Ltd.)

Keywords:

Transmission impairments and their mitigation,Optical transmitter and receiver subsystems

The nonlinearity of coherent optical DAC transmitters is characterized using proposed bit-dependent impulse model, considering Rx-side DSPs with and without IQ imbalance compensation. Theoretical nonlinear SNRs and simulated ones align within 0.1dB across 25dB range.