High power all-fiber grating based multiplexers for 100 W class systems

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This all-fiber multiplexing architecture uses Fiber Bragg Gratings and Mach–Zehnder Interferometers to replace free-space optics in 100 W class laser systems. By eliminating complex alignment requirements, it achieves near-diffraction-limited beam quality within a significantly reduced system footprint. This approach is essential for scaling to the Tbps data rates required by future space-based feeder links.