Open AccessExperimental demonstration of crosstalk compensation for super high‐density multi‐carrier PDM‐QPSK signal by MIMO processing
Author(s) -
Hamaoka F.,
Saito K.,
Yamamoto S.,
Matsuda T.,
Naka A.
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2014.2296
Subject(s) - crosstalk , phase shift keying , signal processing , mimo , compensation (psychology) , electronic engineering , computer science , physics , engineering , telecommunications , digital signal processing , bit error rate , beamforming , channel (broadcasting) , psychology , psychoanalysis
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.