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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 27 — Sep. 20, 2003
  • pp: 5500–5507

High-power 457-nm light source by frequency doubling of an amplified diode laser

Valentina Ruseva and Jan Hald  »View Author Affiliations


Applied Optics, Vol. 42, Issue 27, pp. 5500-5507 (2003)
http://dx.doi.org/10.1364/AO.42.005500


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Abstract

We demonstrate the generation of 150-mW blue coherent single-mode radiation at 457 nm in a compact and inexpensive setup. The light is generated by frequency doubling the radiation of a master oscillator power amplifier (MOPA) system in an enhancement cavity with a potassium niobate (KNbO3) crystal. The MOPA consists of a 914-nm single-mode diode laser and a broad-area diode laser (BAL) as the amplifier. The BAL is a multimode laser with a specified wavelength of 938 nm. Sufficient gain at 914 nm is obtained by antireflection coating the BAL front surface and by cooling it to -10 °C.

© 2003 Optical Society of America

OCIS Codes
(140.2020) Lasers and laser optics : Diode lasers
(140.3280) Lasers and laser optics : Laser amplifiers
(140.5960) Lasers and laser optics : Semiconductor lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing

History
Original Manuscript: February 5, 2003
Revised Manuscript: May 21, 2003
Published: September 20, 2003

Citation
Valentina Ruseva and Jan Hald, "High-power 457-nm light source by frequency doubling of an amplified diode laser," Appl. Opt. 42, 5500-5507 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-27-5500

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