Ultra-Fast Adaptive Digital Polarization Control in a Realtime Coherent Polarization-Multiplexed QPSK Receiver

Author

Pfau, Timo ; Wordehoff, C. ; Peveling, R. ; Ibrahim, Selwan K. ; Hoffmann, S. ; Adamczyk, O. ; Bhandare, S. ; Porrmann, Mario ; Noe, Reinhold

Author_Institution

Univ. of Paderborn, Paderborn, Germany

fYear

2008

fDate

24-28 Feb. 2008

Firstpage

1

Lastpage

3

Abstract

A digital polarization control system integrated in a 2.8 Gbit/s realtime polarization-multiplexed coherent QPSK system compensates for endless polarization changes having a maximum gradient of 3.5 krad/s (12 krad/s) with 1 dB (3.9 dB) loss in receiver sensitivity.

Keywords

compensation; digital control; high-speed optical techniques; multiplexing; optical control; optical fibre communication; optical fibre polarisation; optical modulation; optical receivers; quadrature phase shift keying; telecommunication control; QPSK receiver sensitivity; bit rate 2.8 Gbit/s; digital polarization control system; endless polarization change; realtime coherent polarization-multiplexing; ultra-fast adaptive digital polarization control; Adaptive control; Control systems; Digital control; Optical fiber communication; Optical fiber polarization; Optical polarization; Optical receivers; Optical retarders; Programmable control; Quadrature phase shift keying;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber communication/National Fiber Optic Engineers Conference, 2008. OFC/NFOEC 2008. Conference on

Conference_Location

San Diego, CA

Print_ISBN

978-1-55752-856-8

Type

conf

DOI

10.1109/OFC.2008.4528638

Filename

4528638