Low-Complexity MIMO Carrier Phase Recovery for Carrier-Phase-Asynchronous SDM-MIMO Transmission Based on the Unscented Kalman Filter
Conference: ECOC 2024 - 50th European Conference on Optical Communication
09/22/2024 - 09/26/2024 at Frankfurt, Germany
Proceedings: ITG-Fb. 317: ECOC 2024
Pages: 4Language: englishTyp: PDF
Authors:
Shibahara, Kohki; Hoshi, Megumi; Mori, Takayoshi; Imada, Ryota; Sakamoto, Taiji; Yamada, Yusuke; Nakajima, Kazuhide; Kobayashi, Takayuki; Miyamoto, Yutaka
Abstract:
We propose simplified unscented-Kalman-filter-based MIMO-structured phase estimation technique, handling multiple phase errors in carrier-phase-asynchronous SDM-MIMO transmission. It improved tolerance against sum-linewidth-symbol-duration product by >15% while attaining up to 90%-reduced complexity. We also present useful SDM-MIMO applications under Tx/Rx-laser-asynchronous scenarios with transmission results over coupled-multicore-fibre cable.