Mode Harnessing for Laser Diodes

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.



Laser diodes—one of the most efficient coherent light sources—are omnipresent in our everyday life. Their extraordinary efficiency, ease of modulation, robustness and compactness are driving their rapid proliferation in various applications.

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