Real-time first- and second-order PMD characterization using averaged state-of-polarization of filtered signal and polarization scrambling

Author

Phua, P.B. ; Fini, John M. ; Haus, Hermann A.

Author_Institution

Dept. of Electr. Eng., Massachusetts Inst. of Technol., Cambridge, MA, USA

Volume

21

Issue

4

fYear

2003

fDate

4/1/2003 12:00:00 AM

Firstpage

982

Lastpage

989

Abstract

A real-time estimation technique for first- and second-order polarization-mode dispersion (PMD) is presented. It makes use of the spectrum of telecommunication signals. At the output of the transmission fiber, the signal is tapped and filtered. Three filters are used: a high-pass filter, a low-pass filter, and a narrow-band filter. The averaged states of polarization (SOPs) of the filtered signals are then measured using a polarimeter. We repeat the measurement for several different input SOPs using a polarization scrambler at the input of the fiber. From these measurements, we deduce the first-order PMD and, subsequently, the second-order PMD.

Keywords

compensation; high-pass filters; low-pass filters; optical fibre communication; optical fibre dispersion; optical fibre polarisation; optical filters; polarimeters; averaged state-of-polarization; filtered signal; filtered signals; first-order PMD characterization; high-pass filter; low-pass filter; narrow-band filter; polarization scrambler; polarization scrambling; real-time estimation technique; second-order PMD characterization; telecommunication signals; transmission fiber; Delay estimation; Ellipsoids; Feedback loop; Life estimation; Low pass filters; Optical fiber polarization; Optical filters; Polarization mode dispersion; Pulse measurements; Student members;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2003.810094

Filename

1207347