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Frequency doubling of Yb-doped fiber laser to 515 nm

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Laser Physics

Abstract

Operation of Yb-doped fiber laser (YDFL) at short wavelengths (about 1030 nm) is known to be possible with relatively short active fibers. Frequency doubling of such a laser is studied. It is shown that, in contrast to conventional YDFLs, operating around 1080 nm, the short-wavelength YDFL does not exhibit significant spectral broadening induced by nonlinear effects. Thus, the generated spectrum remains narrower than the FBG reflection profile, which allows an almost twofold intracavity intensity enhancement. Consequently, the second harmonic generation in the KTP crystal placed inside the YDFL cavity appears more effective than the generation in the single-pass scheme by an order of magnitude. An output power of about 0.4 W at a wavelength of 515 nm is demonstrated.

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Authors and Affiliations

  1. Institute of Automation and Electrometry, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 1, Novosibirsk, 630090, Russia

    S. I. Kablukov, E. I. Dontsova, V. A. Akulov, A. A. Vlasov & S. A. Babin

  2. Novosibirsk State University, ul. Pirogova 2, Novosibirsk, 630090, Russia

    S. I. Kablukov & S. A. Babin

Authors
  1. S. I. Kablukov
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  2. E. I. Dontsova
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  3. V. A. Akulov
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  4. A. A. Vlasov
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  5. S. A. Babin
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Correspondence to S. I. Kablukov.

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Original Russian Text © Astro, Ltd., 2010.

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Kablukov, S.I., Dontsova, E.I., Akulov, V.A. et al. Frequency doubling of Yb-doped fiber laser to 515 nm. Laser Phys. 20, 360–364 (2010). https://doi.org/10.1134/S1054660X10040043

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  • DOI: https://doi.org/10.1134/S1054660X10040043

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