Title :
40-Gb/s RZ signal transmission in a transparent network based on wavelength-selective optical cross connect
Author :
Su, Yikai ; Raybon, Greg ; Zheng, Zheng ; Chandrasekhar, S. ; Ryf, Roland ; Moller, Lothar
Author_Institution :
Lucent Technol. Bell Labs, Holmdel, NJ, USA
Abstract :
We investigate 40-Gb/s return-to-zero signal transmission in a transparent optical network equipped with wavelength-selective optical cross connects (WSOXCs). The investigation is performed in a recirculating loop setup consisting of 4100-km spans of transmission fiber. A WSOXC is placed inside the loop to mimic cascaded WSOXCs with a spacing of 400 km. We study various degradation effects in the system, particularly those of node loss and optical filtering. Q value measurements of the received signal were carried out at different transmission distances and WSOXC loss conditions. A Q value of 15.5 dB was measured at 1200-km distance with two cascaded WSOXCs of which the node loss is 17 dB.
Keywords :
nonlinear optics; optical distortion; optical fibre filters; optical fibre losses; optical fibre networks; optical fibre polarisation; optical interconnections; optical switches; 1200 km; 17 dB; 40 Gbit/s; 40-Gb/s RZ signal transmission; 4100 km; Q value measurements; WSOXC loss conditions; cascaded WSOXCs; degradation effects; filter distortion; node loss; nonlinear optics; optical fiber polarization; optical filtering; optical noise; optical switches; recirculating loop setup; return-to-zero signal transmission; transmission distances; transmission fiber; transparent optical network; wavelength-selective optical cross connect; Fiber nonlinear optics; Intelligent networks; Nonlinear optics; Optical distortion; Optical fiber networks; Optical filters; Optical receivers; Optical transmitters; Repeaters; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.818249
