- 标题
- 摘要
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Intercore Crosstalk Mitigation in Multicore Fiber Transmission with Optical Space Coding
摘要： We have demonstrated crosstalk mitigation in single-mode MCFs using optical space coding. Four types of single-mode multicore fiber (MCF) models were evaluated by our scheme with the modified prime code and differential detection. Typically, intercore crosstalk was improved by 7–20 dB in 9-core fibers with an original crosstalk of 10–20 dB.
关键词： OCDM,multicore fiber,crosstalk,intercore coupling
更新于2025-09-23 15:23:52
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Label Stacking Scenarios in Hybrid Wavelength and Code-Switched GMPLS Networks
摘要： Multi-protocol label switching (MPLS) is a promising solution to implement high-speed internet protocol (IP) networks by reducing the layer number. To meet the increasing demand for data traffic, optical packet switching (OPS) is integrated under IP to provide high bandwidth to end users. Generalized MPLS (GMPLS) is perfectly compatible with the routing algorithm in IP/MPLS as it supports packet-switching functions. In this paper, we investigate the label stacking scenarios in GMPLS networks. In GMPLS, label stacking is done to reduce the node complexity by appending multiple labels to a single packet. Wavelength-division multiplexing (WDM) and optical code-division multiplexing (OCDM) signals have been widely used as identifying labels. As the labels can be permutated among the wavelengths or code dimensions, the structure of a label stack can be varied. However, studies on the relationship between label stacking scenarios and network performance are limited. To investigate this issue, we propose three label stacking models: sequential code distribution; sequential wavelength distribution, and random label distribution. The simulation results show that the sequential wavelength assignment, wherein the labels are uniformly distributed among the wavelengths, exhibits the best system performance in terms of the label-error rate (LER).
关键词： label stacking,generalized multi-protocol label switching (GMPLS),wavelength-division multiplexing (WDM),optical code-division multiplexing (OCDM)
更新于2025-09-23 15:21:21
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[IEEE 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC) - Fukuoka, Japan (2019.7.7-2019.7.11)] 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC) - Sub-Picosecond Optical Switch over Entire C-Band by Using Nonlinear Optical Loop Mirror
摘要： We describe 650 fs optical switching over the entire C-band using a low walk-off nonlinear optical loop mirror (NOLM). Error-free 320 Gbaud OTDM demultiplexing was successfully demonstrated from 1528 to 1565 nm.
关键词： Multiplexing and demultiplexing techniques including OTDM,OCDM and SDM,OFDM,Optical transmitter and receiver subsystems
更新于2025-09-16 10:30:52
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[IEEE 2019 18th International Conference on Optical Communications and Networks (ICOCN) - Huangshan, China (2019.8.5-2019.8.8)] 2019 18th International Conference on Optical Communications and Networks (ICOCN) - Volterra-based fiber nonlinearity impairment modeling for OFDM/OQAM systems
摘要： In this paper, we have reported for the first time the fiber nonlinearity application of Volterra-based impairment modeling for OFDM/OQAM systems. Based the proposed model, a novel compensation method can be presented by simulations later.
关键词： Digital signal processing techniques for optical communications,transmission impairments and their mitigations,multiplexing and demultiplexing techniques including OTDM, OFDM, OCDM and SDM
更新于2025-09-16 10:30:52