Title :
Q-factor monitoring of optical signal-to-noise ratio degradation in optical DPSK transmission
Author :
Jong, K.-C. ; Tsao, H.W. ; Lee, S.-L.
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei
Abstract :
An asynchronous sampling monitor for optical DPSK signals by using a two-tap histogram is proposed. By means of statistical analysis, a parameter is defined to measure the Q-factor to indicate the OSNR degradation. Compared to traditional monitoring methods, this method requires no synchronisation before sampling and is thus cost-effective.
Keywords :
Q-factor; differential phase shift keying; optical information processing; signal sampling; statistical analysis; Q-factor monitoring; asynchronous sampling monitor; optical DPSK transmission; optical signal-to-noise ratio degradation; statistical analysis; two-tap histogram;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20080443
