TY - JOUR
T1 - Fiber Vector Eigenmode Multiplexing based High Capacity Transmission over 5-km FMF with Kramers-Kronig Receiver
AU - Zhang, Jianbo
AU - Wu, Xiong
AU - Li, Jianping
AU - Lu, Linyue
AU - Tu, Jiajing
AU - Li, Zhaohui
AU - Lu, Chao
N1 - Funding Information:
Manuscript received October 8, 2020; revised January 22, 2021 and April 21, 2021; accepted May 3, 2021. Date of publication May 11, 2021; date of current version August 2, 2021. This work was supported in part by the National Key R&D Program of China under Grant 2018YFB1801701, in part by the National Natural Science Foundation of China (NSFC) under Grants U1701661 and 62022029, in part by the Program for Guangdong Introducing Innovative and Enterpreneurial Teams under Grant 2019ZT08X340, in part by the Research and Development Plan in Key Areas of Guangdong Province under Grant 2018B010114002, and in part by the State Key Laboratory of Advanced Optical Communication Systems and Networks, China under Grant 2019GZKF1. (Corresponding authors: Jianping Li; Xiong Wu.) Jianbo Zhang, Xiong Wu, and Chao Lu are with Photonics Research Center, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China, and also with Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China (e-mail: [email protected]; [email protected]; [email protected]).
Publisher Copyright:
© 1983-2012 IEEE.
PY - 2021/8/1
Y1 - 2021/8/1
N2 - Vector modes (VMs) with spatially nonhomogeneous polarization patterns, combining polarization and spatial-mode degrees of freedom together, are regarded as the eigenmodes of optical fiber. Such eigenmodes have potential to be used to implement the high capacity spatial division multiplexing (SDM)/mode division multiplexing (MDM) based optical fiber communication systems. Here, we respectively demonstrate 2 VMs of the same order (<i>l</i> = +2, EH11o and EH11e modes) and 2 VMs of different orders (<i>l</i> = 0, HE11o mode and <i>l</i> = +2, EH11e mode) multiplexing transmissions over 5-km few-mode fiber (FMF). The mode crosstalk after FMF transmission has been minimized to prepare high capacity signal transmission without multiple-input-multiple-output (MIMO) digital signal processing (DSP). To increase the transmission capacity and decrease the system cost, the Kramers-Kronig (KK) receiver has been employed and the single-wavelength two sets of eigenmodes multiplexed 360 Gbit/s and 400 Gbit/s signal transmissions over 5-km FMF link are realized, respectively. Then, to further burst the transmission capacity, 2 vector-mode-division-multiplexing channels (HE11o and EH11e modes) in combination of 5 wavelength-division-multiplexing (WDM) channels with a total of 10 parallel channels have been demonstrated. A total data rate of 1.12 Tbit/s with 28 GBaud 16-state quadrature amplitude modulation (QAM) signal has been realized over the 5-km FMF. In all data-carrying experimental demonstrations, the bit-error rate (BER) performance of each VM channel is below the 7 % hard decision forward error correction threshold (FEC) at BER of 3.810<sup>-3</sup>. The experimental results highlight that the VMDM-based optical transmission technology could find enormous potential in huge-capacity short-reach optical interconnects.
AB - Vector modes (VMs) with spatially nonhomogeneous polarization patterns, combining polarization and spatial-mode degrees of freedom together, are regarded as the eigenmodes of optical fiber. Such eigenmodes have potential to be used to implement the high capacity spatial division multiplexing (SDM)/mode division multiplexing (MDM) based optical fiber communication systems. Here, we respectively demonstrate 2 VMs of the same order (<i>l</i> = +2, EH11o and EH11e modes) and 2 VMs of different orders (<i>l</i> = 0, HE11o mode and <i>l</i> = +2, EH11e mode) multiplexing transmissions over 5-km few-mode fiber (FMF). The mode crosstalk after FMF transmission has been minimized to prepare high capacity signal transmission without multiple-input-multiple-output (MIMO) digital signal processing (DSP). To increase the transmission capacity and decrease the system cost, the Kramers-Kronig (KK) receiver has been employed and the single-wavelength two sets of eigenmodes multiplexed 360 Gbit/s and 400 Gbit/s signal transmissions over 5-km FMF link are realized, respectively. Then, to further burst the transmission capacity, 2 vector-mode-division-multiplexing channels (HE11o and EH11e modes) in combination of 5 wavelength-division-multiplexing (WDM) channels with a total of 10 parallel channels have been demonstrated. A total data rate of 1.12 Tbit/s with 28 GBaud 16-state quadrature amplitude modulation (QAM) signal has been realized over the 5-km FMF. In all data-carrying experimental demonstrations, the bit-error rate (BER) performance of each VM channel is below the 7 % hard decision forward error correction threshold (FEC) at BER of 3.810<sup>-3</sup>. The experimental results highlight that the VMDM-based optical transmission technology could find enormous potential in huge-capacity short-reach optical interconnects.
KW - Kramers-Kronig (KK) receiver
KW - mode division multiplexing (MDM)
KW - Optical crosstalk
KW - Optical fiber communication
KW - Optical fiber networks
KW - Optical fiber polarization
KW - Optical fibers
KW - Optical polarization
KW - Optical receivers
KW - vector mode (VM)
KW - wavelength division multiplexing (WDM)
UR - http://www.scopus.com/inward/record.url?scp=85105870921&partnerID=8YFLogxK
U2 - 10.1109/JLT.2021.3078893
DO - 10.1109/JLT.2021.3078893
M3 - Journal article
AN - SCOPUS:85105870921
SN - 0733-8724
VL - 39
SP - 4932
EP - 4938
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 15
M1 - 9428576
ER -