Optical label switching by using differential phase shift keying and in-band subcarrier multiplexing modulation format

2004 ◽  
Vol 43 (7) ◽  
pp. 1476 ◽  
Author(s):  
I. Tafur Monroy
Keyword(s):  
Phase Shift ◽  
Phase Shift Keying ◽  
Label Switching ◽  
Differential Phase Shift ◽  
Differential Phase ◽  
Modulation Format ◽  
Differential Phase Shift Keying ◽  
Subcarrier Multiplexing ◽  
Shift Keying

scholarly journals A staggered differential phase-shift keying modulation format for 100Gbit/s applications

2008 ◽  
Vol 16 (17) ◽  
pp. 12937 ◽  
Author(s):  
Yufeng Shao ◽  
Shuangchun Wen ◽  
Lin Chen ◽  
Ying Li ◽  
Huiwen Xu
Keyword(s):  
Phase Shift ◽  
Phase Shift Keying ◽  
Differential Phase Shift ◽  
Differential Phase ◽  
Modulation Format ◽  
Differential Phase Shift Keying ◽  
Shift Keying

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.

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