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Applied Optics

Applied Optics


  • Vol. 38, Iss. 9 — Mar. 20, 1999
  • pp: 1777–1783

Beam-Quality Improvement of a Passively Q-Switched Nd:YAG Laser with a Core-Doped Rod

Antonio Lucianetti, Rudolf Weber, Walter Hodel, Heinz Peter Weber, Alexander Papashvili, Vladimir A. Konyushkin, and Tasoltan T. Basiev  »View Author Affiliations

Applied Optics, Vol. 38, Issue 9, pp. 1777-1783 (1999)

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We present experimental results that demonstrate the great efficiency of a core-doped Nd:YAG rod (a hexagonal Nd:YAG core surrounded by undoped YAG) in producing high output power and excellent beam quality. An additional improvement in beam quality is clearly observed when the core-doped rod is used in combination with a LiF:F<sub>2</sub><sup>−</sup> crystal, which acts as a passive <i>Q</i>-switching element. This improvement is quantified by beam-propagation factors as low as <i>M</i><sup>2</sup> ≅ at a maximum average output power of 9 W. We show that transversally pumped core-doped rods with the addition of LiF:F<sub>2</sub><sup>−</sup> crystals fulfill the requirements for high-beam-quality, scalable, compact all-solid-state lasers in passively <i>Q</i>-switched operation.

© 1999 Optical Society of America

OCIS Codes
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3580) Lasers and laser optics : Lasers, solid-state

Antonio Lucianetti, Rudolf Weber, Walter Hodel, Heinz Peter Weber, Alexander Papashvili, Vladimir A. Konyushkin, and Tasoltan T. Basiev, "Beam-Quality Improvement of a Passively Q-Switched Nd:YAG Laser with a Core-Doped Rod," Appl. Opt. 38, 1777-1783 (1999)

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  1. M. von Allmen and A. Blatter, Laser-Beam Interactions with Materials, 2nd ed. (Springer-Verlag, Berlin, 1994).
  2. S. C. Tidwell, J. F. Seamans, M. S. Bowers, and A. K. Cousins, “Scaling cw diode-end-pumped Nd:YAG lasers to high average powers,” IEEE J. Quantum Electron. 28, 997–1009 (1992).
  3. W. Koechner, Solid-State Laser Engineering, 4th ed. (Springer-Verlag, Berlin, 1996), pp. 358–366.
  4. F. Hanson, “Improved laser performance at 946 and 473 nm from a composite Nd:Y3Al5O12 rod,” Appl. Phys. Lett. 66, 3549–3551 (1995).
  5. M. Tsunekane, N. Taguchi, T. Kasamatsu, and H. Inaba, “Analytical and experimental studies on the characteristics of composite solid-state laser rods in diode-end-pumped geometry,” IEEE Sel. Top. Quantum Electron. 3, 9–18 (1997).
  6. E. C. Honea, R. J. Beach, S. B. Sutton, J. A. Speth, S. C. Mitchell, J. A. Skidmore, M. A. Emanuel, and S. A. Payne, “115-W Tm:YAG diode-pumped solid-state laser,” IEEE J. Quantum Electron. 33, 1592–1600 (1997).
  7. R. Weber, B. Neuenschwander, M. MacDonald, M. B. Ross, and H. P. Weber, “Cooling schemes for longitudinally diode laser-pumped Nd:YAG rods,” IEEE J. Quantum Electron. 34, 1046–1053 (1998).
  8. G. Bostanjoglo, I. Sarady, Th. Beck, G. Phillips, and H. Weber, “Drilling of superalloys with a Q-switched Nd:YAG laser,” Laser Optoelektron. 27, 47–51 (1995).
  9. S. V. Garnov, S. M. Klimentov, T. V. Kononenko, V. I. Konov, E. N. Lubnin, F. Dausinger, and A. Raiber, “Laser processing of ceramics and metals by high intense picosecond and nanosecond laser pulses in UV, visible and IR range of spectrum,” in Lasers as Tools for Manufacturing of Durable Goods and Microelectronics, L. R. Migliore, C. S. Roychoudhuri, R. D. Schaeffer, J. Mazumder, and J. J. Dubowski, eds., Proc. SPIE 2703, 442–456 (1996).
  10. T. Dascalu, G. Philipps, and H. Weber, “Investigation of a Cr4+:YAG passive Q-switch in cw pumped Nd:YAG lasers,” Opt. Laser Technol. 29, 145–149 (1997).
  11. A. Lucianetti, N. G. Muller, R. Weber, H. P. Weber, A. Papashvili, A. Konyushkin, and T. T. Basiev, “Highly efficient high-average power Nd:YAG laser with a passive Q-switch,” in Proceedings of NATO ARW on Optical Resonators, R. Kossowsky, ed. (Kluwer Academic, Dordrecht, The Netherlands, 1997), pp. 405–417.
  12. T. T. Basiev, A. N. Kravets, and A. V. Fedin, “Q-switching of a periodic-pulse-pumped industrial Nd:YAG laser by means of F2:LiF crystals,” Sov. J. Quantum Electron. 23, 513–515 (1993).
  13. A. N. Kravets and S. A. Kravets, “YAG Nd laser system with parallel connection of active elements and passive Q-switching,” in Fifth International Conference on Industrial Lasers and Laser Application ’95, V. Y. Panchenko and V. S. Golubev, eds., Proc. SPIE 2713, 124–129 (1996).
  14. V. P. Chebotayev, S. I. Marennikov, and V. A. Smirnov, “Application of LiF crystals with F2 color centers,” Appl. Phys. B 31, 193–199 (1983).
  15. M. Armstrong, X. Zhu, R. J. D. Miller, J. Montgomery, and I. Miller, “Novel composite structure Nd:YAG gain medium for high power scaling of side pumped configuration,” in digest of the technical meeting on Advanced Solid-State Lasers (Optical Society of America, Washington, D.C., 1997), pp. 45–47.
  16. H. Zbinden and R. Weber, “Diode pumped Nd:YAG laser with parabolic pump cavity,” in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1993), pp. 29–31.
  17. R. Weber, B. Neuenschwander, and H. P. Weber, “Thermal effects in solid-state materials,” Opt. Mater. 11, 245–254 (1999).
  18. Our rod was manufactured by Onyx Optics, 6545 Sierra Lane, Dublin, Calif. 94568.
  19. B. Neuenschwander, “Investigations on thermal effects in diode laser-pumped solid-state lasers,” Ph.D. dissertation (University of Bern, Bern, Switzerland, 1996).
  20. B. Neuenschwander, R. Weber, and H. P. Weber, “Determination of the thermal lens in solid-state lasers with stable cavities,” IEEE J. Quantum Electron. 31, 1082–1087 (1995).
  21. A. E. Siegman, “New developments in laser resonators,” in Optical Resonators, D. Holmes, ed., Proc. SPIE 1224, 2–14 (1990).
  22. W. Koechner, Solid-State Laser Engineering, 4th ed. (Springer-Verlag, Berlin, 1996), pp. 82–87.
  23. J. A. Morris and C. R. Pollock, “Passive Q switching of a diode-pumped Nd:YAG laser with a saturable absorber,” Opt. Lett. 15, 440–442 (1987).
  24. R. G. Smith and M. F. Galvin, “Operation of the continuously pumped, repetitively Q-switched YAlG:Nd laser,” IEEE J. Quantum Electron. QE-3, 406–413 (1967).
  25. O. Svelto, Principles of Lasers, 3rd ed. (Plenum, New York, 1989), Chap. 5.

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