Rayleigh Noise Mitigation in Channel-reuse 10Gb/s/λ DWDM-PON Employing Optical Beat Noise-based Self Wavelength Managed Tunable Laser

2014 ◽  
Author(s):  
Zhiguo Zhang ◽  
Xu Jiang ◽  
Yanfei Sun ◽  
Xue Chen ◽  
Liqian Wang ◽  
...  
Keyword(s):  
Tunable Laser ◽  
Noise Mitigation ◽  
Beat Noise ◽  
Channel Reuse

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

scholarly journals Channel-reuse bidirectional transmission at 10Gb/s/λ in long-reach DWDM-PON employing self wavelength managed tunable laser

2015 ◽  
Vol 343 ◽  
pp. 107-114 ◽  
Author(s):  
Zhiguo Zhang ◽  
Jiahe Wang ◽  
Xu Jiang ◽  
Xue Chen ◽  
Liqian Wang
Keyword(s):  
Tunable Laser ◽  
Channel Reuse ◽  
Bidirectional Transmission
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