Abstract
A level optimization method for the 4-level pulse-amplitude modulation format is proposed. This optimization method is applicable to signal-dependent noise conditions such as the relative intensity noise and amplified spontaneous noise. The proposed optimization was verified by simulation results and an experimental demonstration at 53 Gbaud, showing an improvement of 4 dB.
Original language | English |
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Article number | 8579524 |
Journal | IEEE Photonics Journal |
Volume | 11 |
Issue number | 1 |
DOIs | |
State | Published - 1 Feb 2019 |
Externally published | Yes |
Keywords
- ASE.
- PAM-4
- RIN
- data center
- signal-dependent noise
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering