Effect of in-line filtering in WDM optical access networks

Abstract:

A study of inline optical filtering in wavelength division multiplexing access networks based on intensity modulation and direct-detection is presented. The system was experimentally tested with several bitrates and filter bandwidths representing the effect of passing through an arrayed waveguide grating. A minimum filter bandwidth of 0.08nm was required to avoid penalties higher than ldB at BER=2·10 -4 for 10Gb/s bitrate. In addition, the influence of neighbor channels and filter bandwidth was also evaluated. In a splitter-based network the minimum wavelength separation to keep penalty below ldB between users was 0.25nm whereas it reduced to 0.1nm with filters improving the spectral efficiency by 2.5 times.

Año de publicación:

2015

Keywords:

Fuente:

google