Tsai, C.-T.C.-T.TsaiLi, C.-C.C.-C.LiChen, C.-W.C.-W.ChenChi, Y.-C.Y.-C.ChiLin, C.-T.C.-T.LinChi, S.S.ChiGONG-RU LIN2021-03-292021-03-292021https://www.scopus.com/inward/record.url?eid=2-s2.0-85087437534&partnerID=40&md5=d0ef68b9bdff54e1f9c6efe102a235b7https://scholars.lib.ntu.edu.tw/handle/123456789/555723By remotely heterodyning two independent laser carriers, the long-reach 60-GHz millimeter-wave-over-fiber (MMWoF) link is demonstrated for the Volterra series filtered quadrature amplitude modulation orthogonal frequency division multiplexing (QAM-OFDM) transmission with nonlinear noise suppression, which enables 13-Gbps data delivery through 50-km single-mode fiber (SMF) and 3-m free-space links. A wavelength tunable colorless laser diode transmits the Volterra filter equalized QAM-OFDM data to remotely couple with a localized single-mode laser carrier at the optical receiving end of the MMWoF system. Such an incoherently coupled dual-mode carrier facilitates the optical single-carrier modulation to suppress chromatic dispersion induced power fading effect of the SMF transmitted QAM-OFDM data. The 2nd+3rd-order nonlinear noise induced by direct modulation, heterodyne conversion, and phase fluctuation of the incoherently coupled dual-mode carrier is corrected with the Volterra filter equalization to upgrade the decoded signal-to-noise ratio (SNR) by >2 dB. After remotely heterodyning the downstream and the localized carriers with mutual incoherence in between, the 16-QAM OFDM transmission at a data rate up to 13.2 Gbps is successfully delivered over 3-m wireless link, which reveals the FEC certificated error vector magnitude of 14.1%, SNR of 17 dB, and bit error rate of 1.7 × 10-3. © 1995-2012 IEEE.and Volterra filter equalization; colorless laser diode (CLD); incoherent optical heterodyne; Millimeter-wave over fiber (MMWoF); QAM-OFDM; wavelength-locked modulator[SDGs]SDG7Bit error rate; Chromatic dispersion; Heterodyning; Millimeter waves; Nonlinear filtering; Optical fiber communication; Orthogonal frequency division multiplexing; Signal to noise ratio; Single mode fibers; Direct modulation; Error vector magnitude; Localized carriers; OFDM transmission; Phase fluctuation; Single carrier modulation; Single-mode lasers; Wavelength tunable; Quadrature amplitude modulationjournal article10.1109/JSTQE.2020.29917362-s2.0-85087437534