Tunable Cr:Nd:GSGG Lasers Pumped by Red Diodes

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2017
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Yerebakan, Talha
Bertram, Rainer
Reiche, Peter
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Proceedings 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference. Piscataway, NJ: IEEE, 2017. ISBN 978-1-5090-6736-7. Available under: doi: 10.1109/CLEOE-EQEC.2017.8086274
Zusammenfassung

Laser operation of Nd+3-doped gadolinium scandium gallium garnet (Nd:GSGG) has been first shown by Kaminskii et al. in 1976 [1]. In earlier studies, flaslamp or solar pumping of Nd:GSGG has been explored, and narrow absorption bands of the Nd+3 ion, that overlaps poorly with these broadband emitters resulted in low laser efficiencies. As a solution, co-doping with chromium ion (Cr:Nd:GSGG) has been applied to generate additional broad absorption bands in the visible to improve the absorption as well as the laser efficiency [2-3]. With the development of semiconductor technology, laser diode pumping has become the dominant excitation scheme for Nd-based laser systems [4-6]. Usually, laser diodes at the sharp absorption peaks of Nd:GSSG around 808 nm or 883 nm have been employed [4-5]. As an alternative, Cr co-doped samples provide broad absorption bands around 645 nm, in a spectral region where low cost laser diodes also exist [6]. While using these broad absorption bands, thermal control of the diode junction temperature, narrowband diode operation, and careful selection of diode central wavelength is not required. However, the quantum defect is higher, lowering the laser efficiencies.

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530 Physik
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2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference, 25. Juni 2017 - 29. Juni 2017, Munich, Germany
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ISO 690DEMIRBAS, Umit, Talha YEREBAKAN, Stefan EGGERT, Rainer BERTRAM, Peter REICHE, Alfred LEITENSTORFER, 2017. Tunable Cr:Nd:GSGG Lasers Pumped by Red Diodes. 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference. Munich, Germany, 25. Juni 2017 - 29. Juni 2017. In: Proceedings 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference. Piscataway, NJ: IEEE, 2017. ISBN 978-1-5090-6736-7. Available under: doi: 10.1109/CLEOE-EQEC.2017.8086274
BibTex
@inproceedings{Demirbas2017Tunab-46318,
  year={2017},
  doi={10.1109/CLEOE-EQEC.2017.8086274},
  title={Tunable Cr:Nd:GSGG Lasers Pumped by Red Diodes},
  isbn={978-1-5090-6736-7},
  publisher={IEEE},
  address={Piscataway, NJ},
  booktitle={Proceedings 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference},
  author={Demirbas, Umit and Yerebakan, Talha and Eggert, Stefan and Bertram, Rainer and Reiche, Peter and Leitenstorfer, Alfred}
}
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