Experimental demonstration of crosstalk compensation for super high-density multi-carrier PDM-QPSK signal by MIMO processing

Author

Hamaoka, Fukutaro ; Saito, Kazuyuki ; Yamamoto, Seiichi ; Matsuda, Tadamitsu ; Naka, Akira

Author_Institution

NTT Network Service Syst. Labs., Nippon Telegraph & Telephone Corp., Musashino, Japan

Volume

50

Issue

21

fYear

2014

fDate

October 9 2014

Firstpage

1538

Lastpage

1540

Abstract

It has been experimentally demonstrated that the proposed multiple-input and multiple-output (MIMO) processing compensated for the crosstalk of a super high-density multi-carrier signal consisting of two optical polarisation division multiplexing (PDM) quadrature phase shift keying (QPSK) sub-carriers. Precise frequency spacing of synthesised optical local oscillators has been applied to the proposed MIMO processing. The experimental results show that the sub-carrier spacing can be reduced to 78% of the baud rate of the PDM-QPSK sub-carriers.

Keywords

optical crosstalk; oscillators; quadrature phase shift keying; MIMO processing; cross-talk compensation; multiple-input and multiple-output processing; optical polarisation division multiplexing quadrature phase shift keying sub-carriers; precise frequency spacing; super high-density multicarrier PDM-QPSK signal; synthesised optical local oscillators;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2014.2296

Filename

6926978