Acta Optica Sinica, Volume. 39, Issue 8, 0806005(2019)
Reducing Signal Crosstalk in IM-DD-Mode-Division Multiplexing Transmission via Digital Orthogonal Filtering
This study proposes a method for reducing signal crosstalk between LP11a and LP11b spatial modes via digital orthogonal filtering. The experimental results of testing the intensity-modulation direct-detection (IM-DD)-mode-division multiplexing transmission based on mode-selective photonic lanterns demonstrate that the bit error rate of the PAM8 signal can be reduced by at least two orders of magnitude via digital orthogonal filtering and conventional interference cancellation in back-to-back, 500-m few-mode fiber transmission. With respect to signal processing, this method provides a solution for modal crosstalk mitigation in low-cost, short-distance IM-DD-mode-division multiplexing transmission.
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Jian Chen, Fang Wang, Zhengxuan Li, Huiwen Fu. Reducing Signal Crosstalk in IM-DD-Mode-Division Multiplexing Transmission via Digital Orthogonal Filtering[J]. Acta Optica Sinica, 2019, 39(8): 0806005
Category: Fiber Optics and Optical Communications
Received: Mar. 14, 2019
Accepted: Apr. 22, 2019
Published Online: Aug. 7, 2019
The Author Email: Li Zhengxuan (zhengxuanli@shu.edu.cn)