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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 21 — Jul. 20, 2006
  • pp: 5377–5384

Maximum value of the pulse energy of a passively Q-switched laser as a function of the pump power

Jianlang Li, Ken-ichi Ueda, Jun Dong, Mitsuru Musha, and Akira Shirakawa  »View Author Affiliations


Applied Optics, Vol. 45, Issue 21, pp. 5377-5384 (2006)
http://dx.doi.org/10.1364/AO.45.005377


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Abstract

The finite recovery time T s of the bleached absorber is presented as one of the possible mechanisms accounting for the increase–maximum–decrease in pulse energy E with the pumping rate W P in cw-pumped passively Q-switched solid-state lasers, by analytically evaluating the sign of the derivative E / W P . The results show that, in the low pump regime ( T > T s , T is the interpulse period), the initial population density n i remains constant, the final population density n f decreases with W P , and this results in a monotonic increase of E with W P . In the high pump regime ( T < T s ) , n i decreases but n f remains the same with W P ; this results in a monotonic decrease of E with W P . At the critical region ( T T s ) , E reaches its maximum value. A cw-pumped Yb:YAG laser passively Q switched by a Cr 4+ : YAG absorber is demonstrated to confirm this model. The theoretical model is also applied to the analysis of three previously reported passive Q switching solid-state [ Nd : GdVO 4 , Nd + : La Sc 3 ( BO 3 ) 4 ( Nd + : LSB ) , and Nd : YAG ] lasers experiments.

© 2006 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3580) Lasers and laser optics : Lasers, solid-state

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 23, 2006
Manuscript Accepted: February 12, 2006

Citation
Jianlang Li, Ken-ichi Ueda, Jun Dong, Mitsuru Musha, and Akira Shirakawa, "Maximum value of the pulse energy of a passively Q-switched laser as a function of the pump power," Appl. Opt. 45, 5377-5384 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-21-5377


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References

  1. B. Braun, F. X. Kartner, G. Zhang, M. Moser, and U. Keller, "56-ps passively Q-switched diode-pumped microchip laser," Opt. Lett. 22, 381-383 (1997). [CrossRef] [PubMed]
  2. 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 (1990). [CrossRef] [PubMed]
  3. J. J. Degnan, "Theory of the optimally coupled Q-switched laser," IEEE J. Quantum Electron. 25, 214-220 (1989). [CrossRef]
  4. J. J. Degnan, "Optimization of passively Q-switched lasers," IEEE J. Quantum Electron. 31, 1890-1901 (1995). [CrossRef]
  5. G. Xiao and M. Bass, "A generalized model for passively Q-switched laser including excited state absorption in the saturable absorber," IEEE J. Quantum Electron. 33, 2286-2294 (1997). [CrossRef]
  6. W. Koechner, Solid State Laser Engineering, 4th ed. (Springer-Verlag, 1996).
  7. J. Liu, B. Ozygus, S. Yang, J. Erhard, U. Seelig, A. Ding, H. Weber, X. M. L. Zhu, L. Qin, C Du, X. Xu, and Z. Shao, "Efficient passive Q-switching operation of a diode-pumped Nd:GdVO4 laser with a Cr4+:YAG saturable absorber," J. Opt. Soc. Am. B 20, 652-661 (2003). [CrossRef]
  8. S. V. Voitikov, A. A. Demidovich, L. E. Batay, A. N. Kuzmin, and M. B. Danailov, "Sub-nanosecond pulse dynamics of Nd:LSB microchip laser Q-switched by Cr:YAG saturable absorber," Opt. Commun. 251, 154-164 (2005). [CrossRef]
  9. D. Welford, "Passively Q-switched lasers: short pulse duration, single-frequency sources," Proceedings of Lasers and Electro-Optics Society Annual Meeting (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 2001), pp. 121-122.
  10. J. J. Zayhowski and A. L. Wilson, "Pump-induced bleaching of the saturable absorber in short-pulse Nd:YAG/Cr4+:YAG passively Q-switched microchip lasers," IEEE J. Quantum Electron. 39, 1588-1593 (2003). [CrossRef]
  11. M. A. Jaspan, D. Welford, and J. A. Russell, "Passively Q-switched microlaser performance in the presence of pump-induced bleaching of the saturable absorber," Appl. Opt. 43, 2555-2560 (2004). [CrossRef] [PubMed]
  12. X. Zhang, S. Zhao, Q. Zhang, L. Sun, and S. Zhang, "Optimization of Cr4+-doped saturable-absorber Q-switched laser," IEEE J. Quantum Electron. 33, 41-44 (1997). [CrossRef]
  13. P. Peterson, A. Gavrielides, M. P. Sharma, and T. Erneux, "Dynamics of passively Q-switched microchip lasers," IEEE J. Quantum Electron. 35, 1247-1256 (1999). [CrossRef]
  14. J. J. Degnan, D. B. Coyle, and R. B. Kay, "Effect of thermalization on Q-switched laser properties," IEEE J. Quantum Electron. 32, 887-899 (1998). [CrossRef]
  15. A. Szabo and R. A. Stein, "Theory of laser giant pulsing by a saturable absorber," J. Appl. Phys. 36, 1562-1566 (1965). [CrossRef]
  16. W. G. Wagner and B. A. Lengyel, "Evolution of giant pulse in a laser," J. Appl. Phys. 34, 2040-2046 (1963). [CrossRef]
  17. X. Zhang, S. Zhao, Q. Wang, Y. Liu, and J. Wang, "Optimization of dye Q-switched lasers," IEEE J. Quantum Electron. 30, 905-908 (1994). [CrossRef]
  18. R. Herda and O. G. Okhotnikov, "Effect of amplified spontaneous emission and absorber mirror recovery time on the dynamics of mode-locked fiber lasers," Appl. Phys. Lett. 86, 011113 (2005). [CrossRef]
  19. Z. G. Li, Z. J. Xiong, N. Moore, G. C. Lim, W. L. Huang, and D. X. Huang, "Amplified-spontaneous-emission effects in a passively Q-switched diode-pumped Nd:YVO4 laser," J. Opt. Soc. Am. B. 21, 1479-1485 (2004). [CrossRef]
  20. G. J. Quarles, "Comparison of ceramic lasers with single crystal materials," presented at Photonics West on Lasers and Applications in Science and Engineering, San Jose, California, 22-27 January 2005.
  21. Z. Burshtein, P. Blau, Y. Kalisky, Y. Shimony, and M. R. Kokta, "Excited-state absorption studies of Cr4+ ions in several garnet host crystals," IEEE J. Quantum Electron. 34, 292-299 (1998). [CrossRef]

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