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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 13 — Jul. 1, 2014
  • pp: 3794–3797

400  mW external cavity diode laser with narrowband emission at 445  nm

N. Ruhnke, A. Müller, B. Eppich, M. Maiwald, B. Sumpf, G. Erbert, and G. Tränkle  »View Author Affiliations


Optics Letters, Vol. 39, Issue 13, pp. 3794-3797 (2014)
http://dx.doi.org/10.1364/OL.39.003794


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Abstract

A high-power external cavity diode laser (ECDL) system with narrowband emission is presented. The system is based on a commercially available high-power GaN laser diode. For the ECDL, a maximum optical output power of 400 mW in continuous-wave operation with narrowband emission is achieved. Longitudinal mode selection is realized by using a surface diffraction grating in Littrow configuration. A spectral width of 20 pm at 445 nm with a side-mode suppression ratio larger than 40 dB is achieved. This concept enables diode laser systems suitable for subsequent nonlinear frequency conversion into the UV spectral range.

© 2014 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(140.2020) Lasers and laser optics : Diode lasers
(140.4780) Lasers and laser optics : Optical resonators
(140.3425) Lasers and laser optics : Laser stabilization

ToC Category:
Photonics and Opto-Electronics

History
Original Manuscript: April 7, 2014
Manuscript Accepted: May 7, 2014
Published: June 19, 2014

Citation
N. Ruhnke, A. Müller, B. Eppich, M. Maiwald, B. Sumpf, G. Erbert, and G. Tränkle, "400  mW external cavity diode laser with narrowband emission at 445  nm," Opt. Lett. 39, 3794-3797 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-13-3794


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