120 Gbit/s high‐speed WDM‐QPSK free‐space optical transmission through 1 km atmospheric channel. Issue 18 (1st September 2018)

• Record Type: Journal Article
• Authors: Feng, Xianglian; Wu, Zhihang; Wang, Tianshu; Jiang, Huilin; Su, Yuwei; Jiang, Hexin; Gao, Shiming
• Is Part Of: Electronics letters. Volume 54:Issue 18(2018)
• Page Start: 1082
• Page End: 1084
• Publication Date: 2018-09-01
• Subjects: wavelength division multiplexing -- free‐space optical communication -- quadrature phase shift keying -- optical modulation -- error statistics -- Weibull distribution -- atmospheric turbulence -- wireless channels; high‐speed WDM‐QPSK free‐space optical transmission -- atmospheric channel -- free‐space optical communication -- high‐speed wavelength‐division multiplexing QPSK signals -- outdoor atmospheric channel -- optical terminal systems -- power fluctuation -- atmospheric turbulence -- exponentiated Weibull distribution -- WDM channels; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2018.5450
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : The free‐space optical communication of high‐speed 120 Gbit/s wavelength‐division multiplexing (WDM) QPSK signals is demonstrated in an outdoor atmospheric channel with a distance of about 1 km. A pair of optical terminal systems with the capture and tracking functions is used to establish the atmospheric channel. The power fluctuation through the atmospheric turbulence agrees well with the exponentiated Weibull distribution. At the BER of 3.8 × 10 −3, the required receiving powers for the three WDM channels are similar, which are all <−15.4 dBm.