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Tunable frequency-controlled laser source in the near ultraviolet based on doubling of a semiconductor diode laser

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Abstract

Continuously tunable ultraviolet laser radiation at 397 nm was generated by doubling the output of a semiconductor diode laser. The fundamental radiation was provided by a 150 mW AlGaAs laser diode injected by a low-power AlGaAs laser diode which was frequency stabilized by optical feedback using a new scheme of a miniature external cavity. Second-harmonic generation was produced in a lithium-triborate crystal placed in a compact enhancement cavity. The fundamental radiation was used for sub-Doppler spectroscopy of the Ar I 4s 3 P 0 0−4p 1 P 1 transition at 795 nm; the second-harmonic radiation was used for spectroscopy of the Ca II 42 S 1/2−42 P 1/2 transition at 397 nm.

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Author notes

  1. C. Zimmermann

    Present address: Sektion Physik der Universität München, D-80799, München, Germany

Authors and Affiliations

  1. I.N.O. Sezione di Napoli, Dipartimento di Scienze Fisiche dell'Università di Napoli “Federico II”, Mostra d'Oltremare Pad. 20, I-80125, Napoli, Italy

    M. de Angelis & G. M. Tino

  2. European Laboratory for Nonlinear Spectroscopy (LENS), Largo E. Fermi 2, I-50125, Firenze, Italy

    P. De Natale, C. Fort, G. Modugno, M. Prevedelli & C. Zimmermann

Authors
  1. M. de Angelis
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  2. G. M. Tino
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  3. P. De Natale
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  4. C. Fort
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  5. G. Modugno
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  6. M. Prevedelli
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  7. C. Zimmermann
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de Angelis, M., Tino, G.M., De Natale, P. et al. Tunable frequency-controlled laser source in the near ultraviolet based on doubling of a semiconductor diode laser. Appl. Phys. B 62, 333–338 (1996). https://doi.org/10.1007/BF01081194

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  • DOI: https://doi.org/10.1007/BF01081194

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