Title :
Low-Cost PMD-Insensitive and Dispersion Tolerant In-Band OSNR Monitor Based on Uncorrelated Beat Noise Measurement
Author_Institution :
Dept. of Electr. & Electron. Eng., Victorian Res. Lab., Nat. ICT Ausatralia (NICTA), Melbourne, VIC
fDate :
6/1/2008 12:00:00 AM
Abstract :
A polarization-mode-dispersion-insensitive and dispersion tolerant in-band optical signal-to-noise-ratio monitor based on uncorrelated beat noise measurement is proposed and demonstrated. The proposed technique uses an optical delay line interferometer in recovering symmetrical signal samples and exploits the benefits of low-speed balanced receivers and digital signal processing in measuring the uncorrelated beat noise.
Keywords :
light interferometers; noise measurement; optical dispersion; optical variables measurement; photodetectors; PMD insensitive; dispersion tolerant; in band OSNR monitor; low cost; optical delay line interferometer; polarization mode; uncorrelated beat noise measurement; Delay lines; Dispersion; Monitoring; Noise measurement; Optical interferometry; Optical noise; Optical polarization; Optical receivers; Optical signal processing; Signal to noise ratio; Balanced photodetector (PD); chromatic dispersion; correlated beat noise; delay line interferometer (DLI); in-band optical signal-to-noise ratio (OSNR); polarization-mode dispersion (PMD); uncorrelated beat noise;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.922355
