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Updated: Jul 4, 2026

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Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
64 and 128 coherent QAM optical transmission over 150 km using frequency-stabilized laser and heterodyne PLL
Masato Yoshida1, Hiroki Goto, Keisuke Kasai
1Research Institute of Electrical Communication, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi, Miyagi-ken, 980-8577 Japan. masato@riec.tohoku.ac.jp
Optics Express
|June 11, 2008
Abstract:
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.

