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Single-frequency 620  nm diamond laser at high power, stabilized via harmonic self-suppression and spatial-hole-burning-free gain

MetadataDetails
Publication Date2019-02-01
JournalOptics Letters
AuthorsXuezong Yang, Ondřej Kitzler, David J. Spence, Robert J. Williams, Zhenxu Bai
InstitutionsChinese Academy of Sciences, Shanghai Institute of Optics and Fine Mechanics
Citations59

Single longitudinal mode (SLM) operation of a 620 nm diamond Raman laser is demonstrated in a standing-wave cavity that includes a second-harmonic generation element. Mode competition provided by the harmonic mixing is shown to greatly increase mode stability, in addition to the benefits of the spatial-hole-burning-free gain medium. Using a multi-longitudinal mode 1064 nm Nd:YAG pump laser of power 321 W and linewidth 3.3 GHz, SLM powers of 38 W at 620 nm and 11.8 W at 1240 nm were obtained. The results indicate that simple standing-wave oscillators pumped by multimode Yb or Nd pumps compose a promising practical route towards the generation of high-power SLM beams in the yellow-red part of the spectrum.

  1. 2018 - Frontiers in Optics/Laser Science [Crossref]