Multilevel amplitude-differential phase shift keying (MADPSK) modulation formats for long-haul optical transmission systems

2006 ◽  
Author(s):  
Tran. D. Dung ◽  
Huynh. T. Liem ◽  
Le N. Binh
Keyword(s):  
Phase Shift ◽  
Optical Transmission ◽  
Phase Shift Keying ◽  
Transmission Systems ◽  
Modulation Formats ◽  
Differential Phase Shift ◽  
Differential Phase ◽  
Differential Phase Shift Keying ◽  
Shift Keying ◽  
Optical Transmission Systems

Design and Performance Analysis of 2D OCDMA System with Polarization States

2016 ◽  
Vol 37 (4) ◽  
Author(s):  
Manisha Bharti ◽  
Ajay K. Sharma ◽  
Manoj Kumar
Keyword(s):  
Phase Shift ◽  
Polarization State ◽  
Phase Shift Keying ◽  
Modulation Formats ◽  
Differential Phase Shift ◽  
Differential Phase ◽  
Differential Phase Shift Keying ◽  
Shift Keying ◽  
Polarization States ◽  
Code Division Multiple

AbstractThis paper focuses on increasing the number of subscribers in optical code-division multiple access (OCDMA) system by using one of the features of light signal that it can be propagated in two polarization states. The performance of two-dimensional (2D) OCDMA system based on wavelength-time coding scheme by adding polarization state is investigated at varying data rates from 1 GHz to 6 GHz and for various modulation formats. It is reported that with increase in data rate of system, the performance of the system deteriorates due to polarization mode dispersion. Non-return to-zero (RZ), return to-zero (RZ), carrier suppressed return-to-zero (CSRZ) and differential phase shift keying (DPSK) modulation formats are simulated for a single user system with polarization. Investigations reveal that differential phase shift keying (DPSK) modulation format suits best to the proposed system and exhibit the potential to improve the flexibility of system for more number of users. The investigations are reported in terms of Q-factor, BER, received optical power (ROP) and eye diagrams.

Four Serial Differential Phase-Shift Keying Modulation Formats for 100 Gbit/s Tansmission Aplications

2009 ◽  
Vol 36 (3) ◽  
pp. 574-580 ◽  
Author(s):  
邵宇丰 Shao Yufeng ◽  
李佳 Li Jia ◽  
程黎黎 Cheng Lili ◽  
皮雅稚 Pi Yazhi ◽  
文双春 Wen Shuangchun ◽  
...  
Keyword(s):  
Phase Shift ◽  
Phase Shift Keying ◽  
Modulation Formats ◽  
Differential Phase Shift ◽  
Differential Phase ◽  
Differential Phase Shift Keying ◽  
Shift Keying

Analysis of Nonlinearity in High Speed Differential Phase Shift Keying Optical Transmission System

2011 ◽  
Vol 130-134 ◽  
pp. 3595-3598
Author(s):  
Ju Cai ◽  
Qiu Jian Bai
Keyword(s):  
Phase Shift ◽  
High Speed ◽  
Optical Transmission ◽  
Transmission System ◽  
Phase Shift Keying ◽  
Differential Phase Shift ◽  
Differential Phase ◽  
Differential Phase Shift Keying ◽  
Shift Keying ◽  
The Relationship

The nonlinear effect in high speed differential phase shift keying (DPSK) optical transmission system is analyzed in this paper. The fine dispersion management can mitigates the system performance degrade induced by nonlinearity. The relationship between Q-factor and dispersion precompensation distance are discussed detailed, and an optimized dispersion precompensation distance where has a maximum Q value is reached through simulating the 40Gbit/s DPSK dispersion pre-compensation transmission system.

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