Full-Duplex 20/10 Gb/s WDM-PON with Remodulation of Chirped ASK and Multi-level Quaternary PAM and OFDM

Author(s):  
Jose A. Lazaro ◽  
Bernhard Schrenk ◽  
Alexandras Maziotis ◽  
Ivan Cano ◽  
Paraskevas Bakopoulos ◽  
...  
Keyword(s):  
2018 ◽  
Vol 427 ◽  
pp. 54-60 ◽  
Author(s):  
Qi Ding ◽  
Muguang Wang ◽  
Hongqian Mu ◽  
Yu Tang ◽  
Jing Zhang ◽  
...  

2019 ◽  
Vol 40 (3) ◽  
pp. 255-260
Author(s):  
Binoy Das ◽  
Rahul Mukherjee ◽  
Gour Chandra Mandal ◽  
Ardhendu Sekhar Patra

Abstract A full duplex WDM-PON system is designed and demonstrated based on carrier reusing scheme and by employing differential quadrature phase shift keying (DQPSK) modulation in downlink and inverse return-to-zero modulation in the uplink to transmit 40 Gbps and 20Gbps data-rate respectively. Three Mach-Zehnder modulators are used sequentially to realize the 67 % carrier suppressed return to zero (CS-RZ) DQPSK modulation in the downlink transmission. Very low bit error rate values @10‒9 and clear eye-diagrams are observed over a 40 km single-mode-fiber transmission in our proposed full-duplex configuration.


Optik ◽  
2014 ◽  
Vol 125 (14) ◽  
pp. 3473-3475 ◽  
Author(s):  
Harpreet Singh ◽  
Maninder Lal Singh ◽  
Rajandeep Singh
Keyword(s):  

2015 ◽  
Vol 36 (3) ◽  
Author(s):  
Anindya Sundar Das ◽  
Ardhendu Sekhar Patra

AbstractWe have proposed and demonstrated a full-duplex wavelength division multiplexed passive optical network (WDM-PON) configuration based on reflective semiconductor optical amplifier (RSOA). RSOA is used for reusing and remodulate the downlink signal in the uplink. We have used external modulation scheme for transmitting 20 Gbps data rates in two channels over a 40 km single mode fiber (SMF). The uplink and the downlink performances are checked by the bit error rate (BER) and the eye diagrams.


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