Abstract
We experimentally assess the bit error rate (BER) performance of an intensity modulation/direct detection (IM/DD) optical orthogonal frequency division multiplexing (OFDM) system based on discrete Hartley transform (DHT) precoding in single-mode fiber (SMF) link for 2.5 Gbit/s quadrature phase shift keying (QPSK) OFDM symbol rate. The experimental results show that for the optical OFDM system based on DHT-precoding, the receiver sensitivity at the BER of 10−4 after 100 km SMF transmission is about 1.5 dBm better than that of the original QPSK OFDM signal, and the DHT-precoded OFDM QPSK signal can achieve approximately 1.3 dB of peak-to-average power ratio (PAPR) reduction.
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This work has been supported in part by the National Natural Science Foundation of China (No.61302112), the Open Fund of the State Key Laboratory of Millimeter Waves (Southeast University, Ministry of Education, China) (No.K201214), the Zhejiang Provincial Natural Science Foundation of China (No.LY13F050005), and the Key Industrial Project of Special Major Science and Technology of Zhejiang Province (No.2012C11016-2).
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Wang, Zp., Chen, Fn., Wu, Mw. et al. Experimental evaluation of the BER performance in optical OFDM system based on discrete Hartley transform precoding. Optoelectron. Lett. 10, 224–227 (2014). https://doi.org/10.1007/s11801-014-4044-4
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DOI: https://doi.org/10.1007/s11801-014-4044-4