scholarly journals Experimental demonstration of joint OSNR monitoring and modulation format identification using asynchronous single channel sampling

2015 ◽  
Vol 23 (23) ◽  
pp. 30337 ◽  
Author(s):  
Faisal Nadeem Khan ◽  
Yi Yu ◽  
Ming Chieng Tan ◽  
Waled Hussein Al-Arashi ◽  
Changyuan Yu ◽  
...  
Author(s):  
Faisal Nadeem Khan ◽  
Yi Yu ◽  
Ming Chieng Tan ◽  
Changyuan Yu ◽  
Alan Pak Tao Lau ◽  
...  

2010 ◽  
Vol 22 (12) ◽  
pp. 905-907 ◽  
Author(s):  
David J. Geisler ◽  
Nicolas K. Fontaine ◽  
Ryan P. Scott ◽  
Tingting He ◽  
Loukas Paraschis ◽  
...  

2009 ◽  
Vol 23 (11) ◽  
pp. 2479-2489
Author(s):  
XIAOJUN LI ◽  
AIJUN WEN ◽  
ZENGJI LIU ◽  
TAO SHANG

The influence of extinction ratio (ER) on the performance of 120 Gbps return-to-zero octal differential phase-amplitude-shift keying (RZ-ODPASK) modulation format in single-channel transmission is investigated. Based on the modulation and demodulation schemes, the structures of RZ-ODPASK transmitter and receiver are presented; and expressions for the output optical fields and electrical currents of amplitude and phase tributaries are analytically acquired. As ER is a tradeoff for good performance of the two tributaries, the optimal ER for back-to-back configuration is theoretically derived as 2.32 dB for the first time, which is verified by simulation. Then the tolerances to residual chromatic dispersion (CD) and fiber nonlinearity of RZ-ODPASK transmission are numerically studied, respectively. The results indicate that phase tributary is more robust against both dispersion and nonlinearity impairment than the amplitude tributary. To balance the performance of the two tributaries, curves of the optimal ER values with the change of residual CD and fiber nonlinearity are also obtained, respectively. The results can be useful for the design of RZ-ODPASK systems; in the meantime, the analytical methodology described in this paper is applicable to other multilevel RZ-DPASK modulation formats.


2011 ◽  
Author(s):  
Zhixue He ◽  
Ming Luo ◽  
Zhu Yang ◽  
Shaohua Yu ◽  
Qi Yang

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