Title :
All-optical TDM-to-WDM data format conversion in a dynamically reconfigurable WDM network
Author :
Norte, D. ; Park, E. ; Willner, A.E.
Author_Institution :
Dept. of Electr. Eng. Syst., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
We demonstrate both single-stage and two-stage all-optical TDM-to-WDM data format convertors based on cross-gain compression in an SOA. Our method simultaneously time demultiplexes and wavelength shifts each channel´s data within a TDM packet. We convert a 2-Gb/s 4-channel TDM data stream at 1552 mn into four 500-Mb/s WDM channels at 1535, 1537, 1540, and 1571 mm. Moreover, we extend this single-stage approach by demonstrating a two-stage TDM-to-WDM convertor that selectively time demultiplexes and wavelength shifts a 2-Gb/s TDM input data stream into two 500-Mb/s WDM channels after the second stage. We find that low power penalties (<2 dB) can be achieved by using this scheme for both the single- and two-stage cases. This conversion scheme may be quite useful in WDM switching nodes.<>
Keywords :
data compression; demultiplexing equipment; optical communication equipment; optical fibre LAN; time division multiplexing; wavelength division multiplexing; wide area networks; 1535 nm; 1537 nm; 1540 nm; 1552 nm; 1571 nm; 2 Gbit/s; 500 Mbit/s; WDM switching nodes; all-optical TDM-to-WDM data format conversion; cross-gain compression; data format conversion; dynamically reconfigurable WDM network; input data stream; low power penalties; single-stage approach; time demultiplexing; wavelength shift; Converters; Demultiplexing; Intelligent networks; Nonlinear optics; Optical mixing; Optical pumping; Semiconductor optical amplifiers; Time division multiplexing; WDM networks; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
