Multilevel Amplitude Regeneration of PAM-4 Signals using a Nonlinear Optical Loop Mirror
- Wen, Feng
- Tsekrekos, Christos P.
- Zhou, Xingyu
- Geng, Yong
- Wu, Baojian
- Qiu, Kun
- Turitsyn, Sergei K.
- Sygletos, Stylianos
Publication date
April 2018
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE) Language
EnglishAbstract
Multilevel amplitude regeneration of return-to-zero PAM-4 signals is experimentally demonstrated using a single NOLM unit. The noise suppression capability at each amplitude level is characterized, and Q2-factor improvement of 0.92dB is achieved by optimizing input signal power and distortion strengt
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