[WB2] Fiber Nonlinearity

11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)

[WB2-2] Fast and Accurate Nonlinear Distortion Measurement Using Probability-Maintained Multi-Notch Sequence

○Jingnan Li^1,2, Tong Ye², Xiaofei Su², Yangyang Fan², Ke Zhang², Shiyu Shi², Qiulu Yang², Hisao Nakashima³, Takeshi Hoshida³, Zhenning Tao², Yojiro Mori^1,4, Hiroshi Hasegawa¹ (1. Nagoya University (Japan), 2. Fujitsu Research & Development Center Co., Ltd. (China), 3. Fujitsu Ltd. (Japan), 4. Toyota Technological Institute (Japan))

Keywords:

Digital signal processing algorithms for optical communications,Optical transmitter and receiver subsystems

Probability-maintained multi-notch sequence, as a universal stimulus, enables fast and accurate nonlinear distortion measurement. Experiments demonstrate 0.5 dB measurement accuracy in nonlinear noise power ratio for PAM4/8 with arbitrary probabilistic shaping.