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We experimentally demonstrate an underwater wireless optical communication (UWOC) with 1.4-Gbaud 16-QAM signal using Gaussian mode, orbital angular momentum (OAM) mode and Bessel mode at the wavelength of 532 nm. Underwater bubbles effect is also studied and the BER performance is measured.
We demonstrate an underwater wireless optical transmission link by employing 4-fold orbital angular momentum (OAM) multicasting. The OAM spectrum degradation and crosstalk between multicasted OAM channels and their neighboring ones after 2-m underwater propagation are studied.
We experimentally demonstrate a 260-meter security free-space optical data transmission link using orbital angular momentum (OAM) beams multiplexing and 16-ary quadrature amplitude modulation (16-QAM) signals. We study the beam wandering, power fluctuation, channel crosstalk, bit-error rate (BER) performance, and link security.
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