scholarly journals Asymmetric optical signal noise ratio in passive optical networks using Raman amplification

2014 ◽  
Vol 3 (10) ◽  
pp. 300-304
Author(s):  
Norio Kashima
Keyword(s):  
Optical Networks ◽  
Optical Signal ◽  
Passive Optical Networks ◽  
Raman Amplification ◽  
Signal Noise ◽  
Noise Ratio

Systematic Studies of Distributed and Hybrid Raman Amplification in 10G-EPON and TWDM-PON

2016 ◽  
Vol 37 (1) ◽  
pp. 1-7 ◽  
Author(s):  
N. Kashima
Keyword(s):  
Case Studies ◽  
Central Office ◽  
Optical Signal ◽  
Access Networks ◽  
Signal Power ◽  
Raman Amplification ◽  
Signal Noise ◽  
Noise Ratio

AbstractWe have studied distributed Raman amplification (DRA) and hybrid Raman amplification to apply both 10G-EPON and TWDM-PON systems. Two types of access networks, 50 km and 10 km, are assumed for case studies. Using the calculated optical received signal power Ps and optical signal noise ratio (OSNR), we consider the cases where the hybrid Raman amplification is necessary or not. In the case of coexistence of both systems, co-use of lumped Raman amplification (LRA) located at a central office (CO) may be possible. The co-use of LRA for both systems is discussed using the calculated Ps and OSNR.

Modified Optical-Signal-Noise-Ratio Monitoring Method Based on High Order Statistical Moment in PM-QPSK Coherent Optical System

2014 ◽  
Vol 41 (5) ◽  
pp. 0505004
Author(s):  
张磊 Zhang Lei ◽  
张晓光 Zhang Xiaoguang ◽  
席丽霞 Xi Lixia ◽  
赵东鹤 Zhao Donghe ◽  
唐先锋 Tang Xianfeng ◽  
...  
Keyword(s):  
Optical System ◽  
Optical Signal ◽  
Statistical Moment ◽  
High Order ◽  
Monitoring Method ◽  
Signal Noise ◽  
Noise Ratio

A Novel Restoration Algorithm Based on Optical Signal-to-Noise Ratio for Transparent Optical Networks

2011 ◽  
Author(s):  
Rodrigo Freitas ◽  
Rodrigo Silva ◽  
Helder Pereira ◽  
Daniel Chaves ◽  
Carmelo Bastos-Filho ◽  
...  
Keyword(s):  
Optical Networks ◽  
Signal To Noise Ratio ◽  
Optical Signal ◽  
Signal To Noise ◽  
Transparent Optical Networks ◽  
Restoration Algorithm ◽  
Noise Ratio

Raman Amplification in the Context of Next-Generation Passive Optical Networks

2008 ◽  
Author(s):  
Joao Andrade ◽  
Berta Neto ◽  
Ana M. Rocha ◽  
Claudia Reis ◽  
Antonio Teixeira ◽  
...  
Keyword(s):  
Optical Networks ◽  
Passive Optical Networks ◽  
Raman Amplification ◽  
Next Generation
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