Beat Noise Mitigation via Hybrid 1D/2D-OCDM: Application to Monitoring of High Capacity PONs

2008 ◽  
Author(s):  
Mohammad M. Rad ◽  
Habib Fathallah ◽  
Leslie A. Rusch
Keyword(s):  
High Capacity ◽  
Noise Mitigation ◽  
Beat Noise

Hybrid WDM free space optical system using CSRZ and Rayleigh backscattering noise mitigation

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Rupinder Kaur ◽  
Charanjit Singh ◽  
Rajbir Kaur
Keyword(s):  
Wavelength Division Multiplexing ◽  
Free Space ◽  
Free Space Optical ◽  
Power Budget ◽  
Noise Mitigation ◽  
Wavelength Division ◽  
Rayleigh Backscattering ◽  
Beat Noise ◽  
Optical Line ◽  
Insertion Losses

Abstract Hybrid wavelength-division-multiplexing (WDM) and free space optical (FSO) access networks are getting great attention due to numerous advantages. In this work, hybrid WDM-FSO system is demonstrated for 55 km at capacity of 5 × 10 Gbit/s using compressed spectrum return to zero (CSRZ) WDM-FSO in downstream and nonreturn to zero (NRZ) in upstream for demonstrating transmitter diversity which inturn decrease the interchannel interference. For the suppression of Rayleigh backscattering (RB) interferometric beat noise, bidirectional cyclic multiplexer is employed. Cyclic multiplexer provide λ 1 to λ 5 wavelengths for optical line terminal (OLT) to ONU transmission and λ 2 to λ 6 for ONU to OLT transmission. Insertion losses of each component are considered and in the end, power budget is also calculated. Results revealed that FSO length of 780–1050 m are obtained using various WDM-FSO downstream signals and their power budget, redundant budget, maximum distance, and insertion losses also calculated.

Beat Noise Mitigation of Spectral Amplitude Coding OCDMA Using Heterodyne Detection

2008 ◽  
Vol 26 (8) ◽  
pp. 962-970 ◽  
Author(s):  
Manabu Yoshino ◽  
Shin Kaneko ◽  
Tomohiro Taniguchi ◽  
Noriki Miki ◽  
Kiyomi Kumozaki ◽  
...  
Keyword(s):  
Heterodyne Detection ◽  
Spectral Amplitude ◽  
Noise Mitigation ◽  
Beat Noise ◽  
Spectral Amplitude Coding

CuS2 sheets: a hidden anode material with a high capacity for sodium-ion batteries

2021 ◽  
Author(s):  
Shaohua Lu ◽  
Weidong Hu ◽  
Xiaojun Hu
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Low Cost ◽  
High Capacity ◽  
Lithium Ion ◽  
Sodium Ion ◽  
Sodium Ion Batteries

Due to their low cost and improved safety compared to lithium-ion batteries, sodium-ion batteries have attracted worldwide attention in recent decades.

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