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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 14 — Jul. 7, 2008
  • pp: 10803–10808

Continuous-wave coherent ultraviolet source at 326 nm based on frequency trippling of fiber amplifiers

Jae-Ihn Kim and Dieter Meschede  »View Author Affiliations

Optics Express, Vol. 16, Issue 14, pp. 10803-10808 (2008)

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We have demonstrated a tunable single frequency source of continuous-wave (CW) coherent ultraviolet (UV) radiation at λ3ω =326 nm. Laser light of a tunable diode laser at λ ω =977 nm was split and injected into two independent fiber amplifiers yielding 1 W and 0.4 W, respectively. The 1 W branch was resonantly frequency doubled, resulting in 120 mW of useful power at λ2ω =488 nm. The third harmonic was generated by summation of the second branch of λ ω and λ2ω which were enhanced by a doubly resonant cavity. This light source has TEM00 character and can be continuously tuned over more than 18 GHz. It is of interest for efficient laser cooling of In and potentially other applications.

© 2008 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3600) Lasers and laser optics : Lasers, tunable
(140.3610) Lasers and laser optics : Lasers, ultraviolet
(190.2620) Nonlinear optics : Harmonic generation and mixing

ToC Category:
Lasers and Laser Optics

Original Manuscript: April 21, 2008
Revised Manuscript: June 25, 2008
Manuscript Accepted: June 29, 2008
Published: July 3, 2008

Jae-Ihn Kim and Dieter Meschede, "Continuous-wave coherent ultraviolet source at 326 nm based on frequency trippling of fiber amplifiers," Opt. Express 16, 10803-10808 (2008)

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