ALL OPTICAL DEMULTIPLEXING FROM 4×2.5GHz OTDM SIGNALS USING NOLM

摘要

1 Introduction With the greatly increased demand for high communication capacity,optical time division multiplexing (OTDM) technology attracts more and more attention. In recent few years,a great deal of efforts have been put in OTDM research.In OTDM system,demultiplexing is a key step. Since the bit rates in OTDM systems can be as high as hundreds Gb/s [1],it is extremely difficult,or even not possible to use electronic technology to demultiplex. Thus,all optical ways are widely studied by scientists in the world [2][3]. Among these methods,nonlinear optical loop mirror (NOLM) is a very important one.