Experimental Results of Free Space Optics WDM for Very High Throughput Spaceborne Terminal and Ground Station

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To scale space-based free-space optical throughput toward Tbps, this research evaluates the application of Wavelength Division Multiplexing (WDM). While coherent coding has maximized single-line capacity, increasing channel count offers a path to higher total throughput without prohibitive per-line power requirements. This study investigates the integration of space-qualified, high-power components to overcome the fading and thermal challenges inherent in trans-atmospheric communication links.