Chromatic dispersion tolerance in optimized NRZ-, RZ- and CSRZ-DPSK demodulation.
We present the results of a comprehensive analysis optimizing the performance of DPSK systems with increased FSR and narrow optical filtering, establishing improved chromatic dispersion tolerance of NRZ-DPSK by 20%, RZ-DPSK by 71% and CSRZ-DPSK by 74% approximately. Transmitting a 40Gb/s signals on a spectrally efficient 50GHz DWDM grid still exhibit improvements of 7% for NRZ-DPSK, 37% for RZ-DPSK and 22% for CSRZ-DPSK, relative to a typical DPSK receiver. The optimized delay and optical filtering scale with the amount of chromatic dispersion. We also demonstrate the impact of limited transmitter bandwidth on optimal optical filtering and bit delay parameters.
ITF Laboratories, Montreal, Canada. yannick.lize@gmail.com
Yannick Keith
YK
Lizé
Xiaoxia
X
Wu
Moshe
M
Nazarathy
Yuval
Y
Atzmon
Louis
L
Christen
Scott
S
Nuccio
Mathieu
M
Faucher
Nicolas
N
Godbout
Alan E
AE
Willner
D003116:Color; D003142:Communication; D003198:Computer Simulation; D008962:Models, Theoretical; D055095:Optics and Photonics; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted