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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.
High-speed AlGaInAs multiple-quantum-well (MQW) electroabsorption modulated lasers (EMLs) based on an identical epitaxial layer (IEL) integration scheme are developed for 40-Gb/s optical fiber communication systems. A self-aligned planarization technique has been adopted to reduce the capacitance of the electroabsorption modulator (EAM). The IEL structure EML chips exhibit a small signal modulation...
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