Broadband Single Flat Narrow Beam Shaped Time-domain Adaptive Modulation for Underwater Transmission with Wavelength Characteristics in Blue-green WDM System

We experimentally demonstrated that time-domain adaptive modulation per wavelength optimizes the underwater transmission capacity of a broad-spectrum WDM-TDHP comprising 450 nm and 520 nm wavelengths, shaped into a flat-narrow beam using a Galileoscope-type beam shaper.