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24 October 2018 Up to 384 Gbit/s based on dense wavelength division multiplexing of 100-GHz channel spacing free space laser transmission performance in a simulated atmosphere channel with adjusted turbulence
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Abstract
The transmission characteristics of 384  Gbit  /  s free-space laser link with dense wavelength division multiplexing (DWDM) are demonstrated, with channel spacing of 100 GHz. We use a simulated atmosphere channel with a tunable weak turbulence, and bit error rate (BER) curves of back-to-back transmission, which are measured and contrasted, respectively. To our knowledge, it is the first demonstration in the research of DWDM-DP-QPSK high-speed free-space optical (FSO) transmission in an atmospheric channel with tunable turbulence. For 100 GHz channel spacing, receiving sensitivities can be −33.6, −32.7, and −32.1  dBm for 300, 336, and 384  Gbit  /  s DWDM-PM-QPSK signals, respectively, at BER of 3.8  ×  10  −  3 (FEC limit). In comparison with −37.6, −36.1, and −35.1  dBm for B2B case, the power penalties are 4, 3.4, and 3.0 dB, respectively. This study indicates that high-speed coherent DWDM-DP-QPSK FSO transmission is feasible.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2018/$25.00 © 2018 SPIE
Xianzhu Liu, Tianshu Wang, Peng Lin, Junda Chen, Xinmeng Zhang, Haifeng Yao, Qiang Fu, Jinhua Yang, and Huilin Jiang "Up to 384 Gbit/s based on dense wavelength division multiplexing of 100-GHz channel spacing free space laser transmission performance in a simulated atmosphere channel with adjusted turbulence," Optical Engineering 57(10), 106109 (24 October 2018). https://doi.org/10.1117/1.OE.57.10.106109
Received: 11 May 2018; Accepted: 27 September 2018; Published: 24 October 2018
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