Nikolai Stelmakh and Michael Vasilyev
Recent experiments have shown that the modal structure of broad-area edge-emitting semiconductor lasers is box-like, with each lateral mode having a distinct wavelength. Thus, researchers can now reshape lateral modes and effectively combine all multimode laser output into a single-mode fiber. This approach provides a promising means for delivering high-power, high-speed modulated beams of any wavelength that are directly radiated from semiconductor lasers.
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