20 September 2017 Investigation into constant envelope orthogonal frequency division multiplexing for polarization-division multiplexing coherent optical communication
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Abstract
Benefiting from the high spectral efficiency and low peak-to-average power ratio, constant envelope orthogonal frequency division multiplexing (OFDM) is a promising technique in coherent optical communication. Polarization-division multiplexing (PDM) has been employed as an effective way to double the transmission capacity in the commercial 100  Gb/s PDM-QPSK system. We investigated constant envelope OFDM together with PDM. Simulation results show that the acceptable maximum launch power into the fiber improves 10 and 6 dB for 80- and 320-km transmission, respectively (compared with the conventional PDM OFDM system). The maximum reachable distance of the constant envelope OFDM system is able to reach 800 km, and even 1200 km is reachable if an ideal erbium doped fiber amplifier is employed.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Yupeng Li, Ding Ding, "Investigation into constant envelope orthogonal frequency division multiplexing for polarization-division multiplexing coherent optical communication," Optical Engineering 56(9), 096108 (20 September 2017). https://doi.org/10.1117/1.OE.56.9.096108 . Submission: Received: 18 June 2017; Accepted: 6 September 2017
Received: 18 June 2017; Accepted: 6 September 2017; Published: 20 September 2017
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