Title :
PMD and CD sensitivity enhancement in directly modulated transmission systems through RZ DM-DPSK
Author :
Christen, L. ; Fazal, I. ; Giltrelli, M. ; Wang, Y. ; Yan, L. ; Willner, Alan E. ; Paraschis, L. ; Yao, S.
Author_Institution :
Dept. of Electr. Eng., Southern California Univ., Los Angeles, CA, USA
Abstract :
We compare PMD and CD tolerances of 10 Gb/s directly-modulated transmission formats, including directly-modulated RZ-DPSK, RZ-OOK and NRZ-OOK, using a 1.55 μm commercially-available DML. Along with an increased receiver sensitivity of 3 dB, we show experimentally that RZ DM-DPSK is more robust than directly-modulated RZ-OOK and NRZ-OOK to both PMD and CD.
Keywords :
delay-differential systems; differential phase shift keying; laser beams; light transmission; optical fibre communication; optical fibre dispersion; optical fibre polarisation; optical modulation; optical receivers; 1.55 micron; 10 Gbit/s; RZ DM-DPSK; chromatic dispersion; differential group delay; directly modulated laser; directly-modulated transmission format; first-order polarisation mode dispersion; receiver sensitivity enhancement;
Conference_Titel :
Optical Communication, 2005. ECOC 2005. 31st European Conference on
Conference_Location :
IET
Print_ISBN :
0-86341-543-1
