Open Access64 and 128 coherent QAM optical transmission over 150 km using frequency-stabilized laser and heterodyne PLL detection
Author(s) -
Masato Yoshida,
Hiroki Goto,
Keisuke Kasai
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.000829
Subject(s) - quadrature amplitude modulation , optics , heterodyne detection , heterodyne (poetry) , phase locked loop , optical modulation amplitude , qam , phase modulation , physics , frequency modulation , amplitude modulation , phase noise , modulation (music) , laser , optical amplifier , telecommunications , bandwidth (computing) , bit error rate , computer science , channel (broadcasting) , acoustics
We describe 1 Gsymbol/s, 64 and 128 coherent quadrature amplitude modulation (QAM) transmissions over 150 km, in which we employ a frequency-stabilized C(2)H(2) fiber laser, an optical phase-looked loop (OPLL), and a heterodyne detection circuit.