13 October 2017 PAM-4 signal delivery in one radio-over-fiber system
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Abstract
We propose and experimentally demonstrate four-level pulse-amplitude-modulation (PAM-4) signal delivery in a radio-over-fiber system for the first time. Over 8 - Gbit / s PAM-4 signals have been transmitted over 20-km single-mode fiber-28 and 1-m wireless distance. The signal after transmission is detected directly by an envelope detector at the receiver side. The maximal bit rate could be increased if the bandpass amplifier and envelope detector have more bandwidth.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Hada Wang, Wen Zhou, Jianjun Yu, "PAM-4 signal delivery in one radio-over-fiber system," Optical Engineering 56(10), 106107 (13 October 2017). https://doi.org/10.1117/1.OE.56.10.106107 . Submission: Received: 3 June 2017; Accepted: 13 September 2017
Received: 3 June 2017; Accepted: 13 September 2017; Published: 13 October 2017
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