Answers are grounded in this paper and cite their sources.
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.
No takes yet. Share an insight, caveat, or question.
Yoshida et al. (2008) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: