Flexible broadband optical frequency comb generation for dense wavelength-division multiplexing passive optical networks

Author(s):  
Siyuan Yu ◽  
Zhongtian Ma ◽  
Jing Ma ◽  
Liying Tan ◽  
Fangdi Bao ◽  
...  
2015 ◽  
Vol 26 ◽  
pp. 100-107 ◽  
Author(s):  
Ali Shahpari ◽  
Ricardo Ferreira ◽  
Vitor Ribeiro ◽  
Artur Sousa ◽  
Somayeh Ziaie ◽  
...  

2013 ◽  
Vol 760-762 ◽  
pp. 255-259
Author(s):  
Na Na Zhang ◽  
Xian Zhou ◽  
Xiao Yun Wu ◽  
Li Min Xia ◽  
Dong Yan ◽  
...  

The letter proposes a novel Optical Network Units (ONUs) source-free scheme for Orthogonal Frequency Division Multiple (OFDM)-based passive optical networks (PON), in which an optical frequency comb generator built by a conventional Mach-Zehnder modulator (MZM) is used to generate ultra-flat optical frequency comb spectra for the downstream and upstream transmission. The proposed architecture is presented and simulated to achieve simultaneously upstream transmission from multiple ONUs over the fiber. Simulation results show the receiver sensitivity reaches-18dBm for upstream transmission and-18.75dBm for downstream transmission.


Photonics ◽  
2020 ◽  
Vol 7 (4) ◽  
pp. 127
Author(s):  
Zichen Liu ◽  
Chao Li ◽  
Jin Tao ◽  
Shaohua Yu

The flexible photonics spectral processor (PSP) is an indispensable element for elastic optical transmission networks that adopt wavelength division multiplexing (WDM) technology. The resolution and system cost are two vital metrics when developing a PSP. In this paper, a high-resolution 1 × 6 programmable PSP is investigated and experimentally demonstrated by using low-cost compact spatial light paths, which is enabled by a 2 K (1080p) liquid crystal on silicon (LCoS) and two cascaded transmission gratings with a 1000 line/mm resolution. For each wavelength channel, the filtering bandwidth and power attenuation can be manipulated independently. The total insertion loss (IL) for six ports is in the range of 5.9~9.4 dB over the full C-band. The achieved 3-dB bandwidths are able to adjust from 6.2 GHz to 5 THz. Furthermore, multiple system experiments utilizing the proposed PSP, such as flexible spectral shaping and optical frequency comb generation, are carried out to validate the feasibility for the WDM systems.


Optik ◽  
2021 ◽  
pp. 166948
Author(s):  
Vishal Sharma ◽  
Surinder Singh ◽  
Lovkesh ◽  
Elena A. Anashkina ◽  
Alexey V. Andrianov

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