Optical access system by Y-00 protocol at 2.5-Gb/s data rate for secure optical fiber communication

Author(s):  
Fumio Futami ◽  
Osamu Hirota
2020 ◽  
Vol 2 (1) ◽  
pp. 7-11
Author(s):  
Auwalu Usman ◽  
Nadiatulhuda Zulkifli ◽  
Mohd Rashidi Bin Salim ◽  
Kharina Khairi

Fault detection and localization in optical fiber communication links are important in the optical access network (OAN) due to the passive nature of the network elements involved. Any failure in the link can resort to a huge amount of data loss in the network. However, deployment of fault detection and localization devices is extremely limited due to the reliability and financial implications of the devices. Several fault monitoring solutions in the OAN domain have been investigated by the researchers over the decades; the challenges for these monitoring techniques are the cost and complexity of their deployment. Thus, this work proposes a cost-effective solution for the detection and localization of a fault in the OAN based on Fiber-to-the-x (FTTx) network using optical reflectors. The reflected signal from the monitors in the network will be utilized to detect and locate the optical link with fault. Experimental results obtained show the techniques capability to detect and localized fault in the network, in-service over a distance of 20 km.


2012 ◽  
Vol 429 ◽  
pp. 159-164
Author(s):  
Zhang Qin ◽  
Qing Sheng Hu

This paper presents a design of 10Gb/s BCH decoder which is compatible with the protocol of G.975 and can be applied in optical fiber communication. The main blocks of this decoder include syndrome calculator, key-equation solver, Chien search and error correction. In order to achieve high speed, 8-bit parallel syndrome calculator and Chien search block are adopted. By sharing the key-equation solver, the numb er of key-equation solver is reduced and the hardware resources are saved. This decoder has been implemented in Virtex-5 FPGA and the verification results show that the decoder can work properly under the clock of 166MHz and the data rate can be up to 10Gb/s.


2021 ◽  
pp. 127107
Author(s):  
Zhanqiang Hui ◽  
Tianshu Zhang ◽  
Meizhi Zhang ◽  
Deng Pan ◽  
Dongdong Han ◽  
...  

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