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Applied Optics

Applied Optics


  • Vol. 41, Iss. 33 — Nov. 20, 2002
  • pp: 7000–7005

All-solid-state tunable continuous-wave ultraviolet source with high spectral purity and frequency stability

Harald Schnitzler, Ulf Fröhlich, Tobias K. W. Boley, Anabel E. M. Clemen, Jürgen Mlynek, Achim Peters, and Stephan Schiller  »View Author Affiliations

Applied Optics, Vol. 41, Issue 33, pp. 7000-7005 (2002)

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We present a novel approach for the generation of highly frequency-stable, widely tunable, single-frequency cw UV light that is suitable for high-resolution spectroscopy. Sum-frequency generation (SFG) of two solid-state sources with a single cavity resonant for both fundamental waves is employed. Using a highly stable, narrow-linewidth frequency-doubled cw Nd:YAG laser as a master laser and slaving to it the SFG cavity and the other fundamental wave from a Ti:sapphire laser, we generate UV radiation of 33-mW output power around 313 nm. Alternatively, we use a diode laser instead of the Ti:sapphire laser and produce an output power of 2.1 mW at 313 nm. With both setups we obtain a continuous tunability of >15 GHz, short-term frequency fluctuations in the submegahertz range, a long-term frequency drift below 100 MHz/h, and stable operation for several hours. The theory of optimized doubly resonant SFG is also given.

© 2002 Optical Society of America

OCIS Codes
(140.3610) Lasers and laser optics : Lasers, ultraviolet
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4360) Nonlinear optics : Nonlinear optics, devices

Original Manuscript: May 21, 2002
Revised Manuscript: May 22, 2002
Published: November 20, 2002

Harald Schnitzler, Ulf Fröhlich, Tobias K. W. Boley, Anabel E. M. Clemen, Jürgen Mlynek, Achim Peters, and Stephan Schiller, "All-solid-state tunable continuous-wave ultraviolet source with high spectral purity and frequency stability," Appl. Opt. 41, 7000-7005 (2002)

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