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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 1, Iss. 3 — Jul. 1, 2011
  • pp: 321–331

Multi-kW-class 1.64 μm Er3+:YAG lasers based on heat-capacity operation [Invited]

Marc Eichhorn  »View Author Affiliations

Optical Materials Express, Vol. 1, Issue 3, pp. 321-331 (2011)

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This paper discusses the spectroscopic fundametals, the scaling properties and experimental results of quasi-three-level resonantly diode-pumped Er3+:YAG solid-state heat-capacity laser (SSHCL) technology. With an output power of 4650 W and output energies in excess of 440 J this laser is currently the most powerful ”eye-safe” SSHCL. Due to a moderate crystal temperature rise of only 56.7 K/s at 11.3 kW of pump power and a temperature-related power drop of 8.8 W/K the laser shows strong potential for further upscaling.

© 2011 OSA

OCIS Codes
(140.3500) Lasers and laser optics : Lasers, erbium
(140.6810) Lasers and laser optics : Thermal effects

ToC Category:
Laser Materials

Original Manuscript: April 19, 2011
Revised Manuscript: May 18, 2011
Manuscript Accepted: May 23, 2011
Published: June 1, 2011

Virtual Issues
Advances in Optical Materials (2011) Optical Materials Express

Marc Eichhorn, "Multi-kW-class 1.64 μm Er3+:YAG lasers based on heat-capacity operation [Invited]," Opt. Mater. Express 1, 321-331 (2011)

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  1. M. Eichhorn, “Quasi-three-level solid-state lasers in the near and mid infrared based on trivalent rare earth ions,” Appl. Phys. B 91, 269–316 (2008). [CrossRef]
  2. D. Y. Shen, J. K. Sahu, and W. A. Clarkson, “Highly efficient in-band pumped Er:YAG laser with 60 W of output at 1645 nm,” Opt. Lett. 31, 754–756 (2006). [CrossRef] [PubMed]
  3. D. Garbuzov, I. Kudryashov, and M. Dubinskii, “110 W(0.9 J) pulsed power from a resonantly diode-laser-pumped 1.6 μm Er:YAG laser,” Appl. Phys. Lett. 87, 121101 (2005). [CrossRef]
  4. M. Eichhorn, “Thermal lens effects in an Er3+:YAG laser with crystalline fiber geometry,” Appl. Phys. B 94, 451–457 (2009). [CrossRef]
  5. G. Albrecht, S. Sutton, V. George, W. Sooy, and W. Krupke, “Solid state heat capacity disk laser,” Laser Part. Beams 16, 605–625 (1998). [CrossRef]
  6. C. B. Dane, L. Flath, M. Rotter, S. Fochs, and J. Brase, “The design and operation of a 10kW solid-state heat-capacity laser,” Conference on Lasers and Electro-Optics CLEO 2001 (2001), Paper CPD9-1.
  7. R. M. Yamamoto, K. Allen, R. Allmon, K. Alviso, B. Bhachu, C. Boley, R. Combs, K. Cutter, S. Fochs, S. Gonzales, R. Hurd, K. LaFortune, W. Manning, R. Merrill, L. Molina, J. Parker, C. Parks, P. Pax, A. Posey, M. Rotter, B. Roy, A. Rubenchik, and T. Soules, “A solid state laser for the battlefield,” 25th Army Science Conference, Nov. 27–30 2006, Orlando, FL, USA, Paper DO-01.
  8. M. Eichhorn, S. T. Fredrich-Thornton, E. Heumann, and G. Huber, “Spectroscopic properties of Er3+:YAG at 300 K–550 K and their effects on the 1.6 μm laser transitions,” Appl. Phys. B 91, 249–256 (2008). [CrossRef]
  9. M. Eichhorn, “Numerical modeling of diode-end-pumped high-power Er3+:YAG lasers,” IEEE J. Quantum. Electron. 44(9), 803–810 (2008). [CrossRef]
  10. M. Eichhorn, “First investigations on an Er3+:YAG SSHCL,” Appl. Phys. B 93, 817–822 (2008). [CrossRef]
  11. M. Eichhorn, “Thermal effects and upconversion in the Er3+:YAG solid-state heat-capacity laser,” Proc. SPIE 7836, 783608 (2010).
  12. R. L. Boulanger, J.-L. Doualan, S. Girard, J. Margerie, and R. Moncorgé, “Excited-state absorption spectroscopy of Er3+-doped Y3Al5O12, YVO4 and phosphate glass,” Phys. Rev. B 60, 11380–11380 (1999). [CrossRef]
  13. R. J. Beach, “Theory and optimization of lens ducts,” Appl. Opt. 35, 2005–2015 (1996). [CrossRef] [PubMed]
  14. M. Eichhorn, “Theory and optimization of hollow ducts,” Appl. Opt. 47, 1740–1744 (2008). [CrossRef] [PubMed]
  15. M. Eichhorn, “Fluorescence reabsorption and its effects on the local effective excitation lifetime,” Appl. Phys. B 96, 369–377 (2009). [CrossRef]
  16. M. Eichhorn, “High-efficiency multi-kilowatt Er3+:YAG solid-state heat-capacity laser,” Opt. Lett. 36, 1245–1247 (2011). [CrossRef] [PubMed]
  17. M. Eichhorn, “Multi-kW Er3+:YAG solid-state heat-capacity laser,” ASSP 2011, Istanbul, Turkey (2001), Post-deadline paper AMF2.
  18. W. Koechner, Solid-State Laser Engineering (Springer, 1999).

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