Abstract

With a laser diode as the pump source, a passive Q switching of an intracavity frequency-doubling Nd:GdVO4 green laser with periodically poled KTP has been realized with a Cr4+:YAG saturable absorber. The dependences of the average output power, pulse width, pulse repetition rate, pulse energy, and peak power on incident pump power at different small-signal transmissions of Cr4+:YAG are measured. The rate equations considering the Gaussian spatial distribution of the intracavity photon density and the effects of the amplified spontaneous emission (ASE) are presented to simulate the Q-switching process of this laser, and the numerical solutions are in agreement with the experimental results. We have further discussed the influences of the ASE parameter ξ on the laser performance.

© 2006 Optical Society of America

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  1. W. Koechner, Solid-State Laser Engineering (Academic, 1999).
  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, 440-443 (1990).
    [CrossRef] [PubMed]
  3. Y. Shimony, Z. Bursjten, and Y. Kalisky, "Cr4+:YAG as passive Q-switch and Brewster plate in a pulsed Nd:YAG laser," IEEE J. Quantum Electron. 31, 1738-1741 (1995).
    [CrossRef]
  4. Y. F. Chen, T. M. Huang, and C. L. Wang, "Passively Q-switched diode-pumped Nd:YVO4/Cr4+:YAG single-frequency microchip laser," Electron. Lett. 33, 1880-1881 (1997).
    [CrossRef]
  5. J. Dong, P. Deng, Y. Liu, Y. Zhang, J. Xu, W. Chen, and X. Xie, "Passively Q-switched Yb:YAG laser with Cr4+:YAG as the saturable absorber," Appl. Opt. 40, 4303-4307 (2001).
    [CrossRef]
  6. J. Zheng, S. Zhao, and L. Chen, "Laser-diode end-pumped passively Q-switched Nd:YVO4 laser with Cr4+:YAG saturable absorber," Opt. Eng. (Bellingham) 41, 2271-2275 (2002).
    [CrossRef]
  7. Y. Xue, N. Ming, J. Zhu, and D. Feng, "The second harmonic generation in LiNbO3 crystals with period laminar ferroelectric domains," Chin. Phys. 4, 554-564 (1984).
  8. F. Torabi-Goudarzi and E. Riis, "Efficient cw high-power frequency doubling in periodically poled KTP," Opt. Commun. 227, 389-403 (2003).
    [CrossRef]
  9. S. Greenstein and M. Rosenbluh, "Dynamics of cw intra-cavity second harmonic generation by PPKTP," Opt. Commun. 238, 319-327 (2004).
    [CrossRef]
  10. Y. F. Chen, Y. S. Chen, and S. W. Tsai, "Diode-pumped Q-switched laser with intracavity sum frequency mixing in periodically poled KTP," Appl. Phys. B 79, 207-210 (2004).
    [CrossRef]
  11. A. Zagumennyi, V. Ostroumov, I. Shcherbakov, T. Jensen, J. Meyen, and G. Huber, "The Nd:GdVO4 crystal: a new material for diode-pumped lasers," Sov. J. Quantum Electron. 22, 1071-1072 (1992).
    [CrossRef]
  12. C. Wyss, W. Luthy, H. Weber, V. Vlasoc, Y. Zavartsev, P. Studenikin, A. Zagumennyi, and I. Shcherbakov, "Performance of a diode-pumped 5 W Nd3+:GdVO4 microchip laser at 1.06 μm," Appl. Phys. B 68, 659-661 (1999).
    [CrossRef]
  13. J. Liu, Z. Wang, X. Meng, Z. Shao, B. Ozygus, A. Ding, and H. Weber, "Improvement of passive Q-switching performance reached with a new Nd-doped mixed vanadate crystal Nd:Gd0.64Y0.36VO4," Opt. Lett. 28, 2330-2332 (2003).
    [CrossRef] [PubMed]
  14. J. Liu, X. Meng, Z. Shao, M. Jiang, B. Ozygus, A. Ding, and H. Weber, "Pulse energy enhancement in passive Q-switching operation with a class of Nd:GdxY1−xVO4 crystals," Appl. Phys. Lett. 83, 1289-1291 (2003).
    [CrossRef]
  15. J. Liu, Z. Shao, H. Zhang, X. Meng, L. Zhu, J. Wang, Y. Liu, and M. Jiang, "Diode-laser-array end-pumped intracavity frequency-doubled 3.6W CW Nd:GdVO4 KTP green laser," Opt. Commun. 173, 311-314 (2000).
    [CrossRef]
  16. D. Y. Shen, H. R. Yang, J. G. Liu, S. C. Tam, Y. L. Lam, W. J. Xie, J. H. Gu, and K. Ueda, "Efficient and compact intracavity-frequency-doubled Nd:GdVO4 KTP laser end-pumped by a fiber-coupled laser diode," Appl. Phys. B 72, 263-266 (2001).
    [CrossRef]
  17. J. Liu, C. Wang, C. Q. Wang, X. Meng, H. Zhang, L. Zhu, J. Wang, Z. Shao, and M. Jiang, "Diode end-pumped Q-switched high-power intracavity frequency-doubled Nd:GdVO4 KTP green laser," Appl. Phys. B 72, 171-174 (2001).
    [CrossRef]
  18. K. Yang, S. Zhao, G. Li, D. Li, and J. Zou, "Laser-diode pumped Nd:GdVO4 CW green laser with periodically poled KTP," Electron. Lett. 41, 191-192 (2005).
    [CrossRef]
  19. G. Li, S. Zhao, H. Zhao, K. Yang, and S. Ding, "Rate equations and solutions of a laser-diode end-pumped passively Q-switched intracavity doubling laser by taking into account intracavity laser spatial distribution," Opt. Commun. 234, 321-328 (2004).
    [CrossRef]
  20. K. J. Yang, S. Zhao, G. Li, and H. Zhao, "A new model of laser-diode end-pumped actively Q-switched intracavity frequency doubling laser," IEEE J. Quantum Electron. 40, 1252-1257 (2004).
    [CrossRef]
  21. Z. Li, Z. Xiong, N. Moore, G. Lim, W. Huang, and D. 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]

2005

K. Yang, S. Zhao, G. Li, D. Li, and J. Zou, "Laser-diode pumped Nd:GdVO4 CW green laser with periodically poled KTP," Electron. Lett. 41, 191-192 (2005).
[CrossRef]

2004

G. Li, S. Zhao, H. Zhao, K. Yang, and S. Ding, "Rate equations and solutions of a laser-diode end-pumped passively Q-switched intracavity doubling laser by taking into account intracavity laser spatial distribution," Opt. Commun. 234, 321-328 (2004).
[CrossRef]

K. J. Yang, S. Zhao, G. Li, and H. Zhao, "A new model of laser-diode end-pumped actively Q-switched intracavity frequency doubling laser," IEEE J. Quantum Electron. 40, 1252-1257 (2004).
[CrossRef]

Z. Li, Z. Xiong, N. Moore, G. Lim, W. Huang, and D. 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]

S. Greenstein and M. Rosenbluh, "Dynamics of cw intra-cavity second harmonic generation by PPKTP," Opt. Commun. 238, 319-327 (2004).
[CrossRef]

Y. F. Chen, Y. S. Chen, and S. W. Tsai, "Diode-pumped Q-switched laser with intracavity sum frequency mixing in periodically poled KTP," Appl. Phys. B 79, 207-210 (2004).
[CrossRef]

2003

F. Torabi-Goudarzi and E. Riis, "Efficient cw high-power frequency doubling in periodically poled KTP," Opt. Commun. 227, 389-403 (2003).
[CrossRef]

J. Liu, Z. Wang, X. Meng, Z. Shao, B. Ozygus, A. Ding, and H. Weber, "Improvement of passive Q-switching performance reached with a new Nd-doped mixed vanadate crystal Nd:Gd0.64Y0.36VO4," Opt. Lett. 28, 2330-2332 (2003).
[CrossRef] [PubMed]

J. Liu, X. Meng, Z. Shao, M. Jiang, B. Ozygus, A. Ding, and H. Weber, "Pulse energy enhancement in passive Q-switching operation with a class of Nd:GdxY1−xVO4 crystals," Appl. Phys. Lett. 83, 1289-1291 (2003).
[CrossRef]

2002

J. Zheng, S. Zhao, and L. Chen, "Laser-diode end-pumped passively Q-switched Nd:YVO4 laser with Cr4+:YAG saturable absorber," Opt. Eng. (Bellingham) 41, 2271-2275 (2002).
[CrossRef]

2001

J. Dong, P. Deng, Y. Liu, Y. Zhang, J. Xu, W. Chen, and X. Xie, "Passively Q-switched Yb:YAG laser with Cr4+:YAG as the saturable absorber," Appl. Opt. 40, 4303-4307 (2001).
[CrossRef]

D. Y. Shen, H. R. Yang, J. G. Liu, S. C. Tam, Y. L. Lam, W. J. Xie, J. H. Gu, and K. Ueda, "Efficient and compact intracavity-frequency-doubled Nd:GdVO4 KTP laser end-pumped by a fiber-coupled laser diode," Appl. Phys. B 72, 263-266 (2001).
[CrossRef]

J. Liu, C. Wang, C. Q. Wang, X. Meng, H. Zhang, L. Zhu, J. Wang, Z. Shao, and M. Jiang, "Diode end-pumped Q-switched high-power intracavity frequency-doubled Nd:GdVO4 KTP green laser," Appl. Phys. B 72, 171-174 (2001).
[CrossRef]

2000

J. Liu, Z. Shao, H. Zhang, X. Meng, L. Zhu, J. Wang, Y. Liu, and M. Jiang, "Diode-laser-array end-pumped intracavity frequency-doubled 3.6W CW Nd:GdVO4 KTP green laser," Opt. Commun. 173, 311-314 (2000).
[CrossRef]

1999

C. Wyss, W. Luthy, H. Weber, V. Vlasoc, Y. Zavartsev, P. Studenikin, A. Zagumennyi, and I. Shcherbakov, "Performance of a diode-pumped 5 W Nd3+:GdVO4 microchip laser at 1.06 μm," Appl. Phys. B 68, 659-661 (1999).
[CrossRef]

1997

Y. F. Chen, T. M. Huang, and C. L. Wang, "Passively Q-switched diode-pumped Nd:YVO4/Cr4+:YAG single-frequency microchip laser," Electron. Lett. 33, 1880-1881 (1997).
[CrossRef]

1995

Y. Shimony, Z. Bursjten, and Y. Kalisky, "Cr4+:YAG as passive Q-switch and Brewster plate in a pulsed Nd:YAG laser," IEEE J. Quantum Electron. 31, 1738-1741 (1995).
[CrossRef]

1992

A. Zagumennyi, V. Ostroumov, I. Shcherbakov, T. Jensen, J. Meyen, and G. Huber, "The Nd:GdVO4 crystal: a new material for diode-pumped lasers," Sov. J. Quantum Electron. 22, 1071-1072 (1992).
[CrossRef]

1990

1984

Y. Xue, N. Ming, J. Zhu, and D. Feng, "The second harmonic generation in LiNbO3 crystals with period laminar ferroelectric domains," Chin. Phys. 4, 554-564 (1984).

Bursjten, Z.

Y. Shimony, Z. Bursjten, and Y. Kalisky, "Cr4+:YAG as passive Q-switch and Brewster plate in a pulsed Nd:YAG laser," IEEE J. Quantum Electron. 31, 1738-1741 (1995).
[CrossRef]

Chen, L.

J. Zheng, S. Zhao, and L. Chen, "Laser-diode end-pumped passively Q-switched Nd:YVO4 laser with Cr4+:YAG saturable absorber," Opt. Eng. (Bellingham) 41, 2271-2275 (2002).
[CrossRef]

Chen, W.

Chen, Y. F.

Y. F. Chen, Y. S. Chen, and S. W. Tsai, "Diode-pumped Q-switched laser with intracavity sum frequency mixing in periodically poled KTP," Appl. Phys. B 79, 207-210 (2004).
[CrossRef]

Y. F. Chen, T. M. Huang, and C. L. Wang, "Passively Q-switched diode-pumped Nd:YVO4/Cr4+:YAG single-frequency microchip laser," Electron. Lett. 33, 1880-1881 (1997).
[CrossRef]

Chen, Y. S.

Y. F. Chen, Y. S. Chen, and S. W. Tsai, "Diode-pumped Q-switched laser with intracavity sum frequency mixing in periodically poled KTP," Appl. Phys. B 79, 207-210 (2004).
[CrossRef]

Deng, P.

Ding, A.

J. Liu, Z. Wang, X. Meng, Z. Shao, B. Ozygus, A. Ding, and H. Weber, "Improvement of passive Q-switching performance reached with a new Nd-doped mixed vanadate crystal Nd:Gd0.64Y0.36VO4," Opt. Lett. 28, 2330-2332 (2003).
[CrossRef] [PubMed]

J. Liu, X. Meng, Z. Shao, M. Jiang, B. Ozygus, A. Ding, and H. Weber, "Pulse energy enhancement in passive Q-switching operation with a class of Nd:GdxY1−xVO4 crystals," Appl. Phys. Lett. 83, 1289-1291 (2003).
[CrossRef]

Ding, S.

G. Li, S. Zhao, H. Zhao, K. Yang, and S. Ding, "Rate equations and solutions of a laser-diode end-pumped passively Q-switched intracavity doubling laser by taking into account intracavity laser spatial distribution," Opt. Commun. 234, 321-328 (2004).
[CrossRef]

Dong, J.

Feng, D.

Y. Xue, N. Ming, J. Zhu, and D. Feng, "The second harmonic generation in LiNbO3 crystals with period laminar ferroelectric domains," Chin. Phys. 4, 554-564 (1984).

Greenstein, S.

S. Greenstein and M. Rosenbluh, "Dynamics of cw intra-cavity second harmonic generation by PPKTP," Opt. Commun. 238, 319-327 (2004).
[CrossRef]

Gu, J. H.

D. Y. Shen, H. R. Yang, J. G. Liu, S. C. Tam, Y. L. Lam, W. J. Xie, J. H. Gu, and K. Ueda, "Efficient and compact intracavity-frequency-doubled Nd:GdVO4 KTP laser end-pumped by a fiber-coupled laser diode," Appl. Phys. B 72, 263-266 (2001).
[CrossRef]

Huang, D.

Huang, T. M.

Y. F. Chen, T. M. Huang, and C. L. Wang, "Passively Q-switched diode-pumped Nd:YVO4/Cr4+:YAG single-frequency microchip laser," Electron. Lett. 33, 1880-1881 (1997).
[CrossRef]

Huang, W.

Huber, G.

A. Zagumennyi, V. Ostroumov, I. Shcherbakov, T. Jensen, J. Meyen, and G. Huber, "The Nd:GdVO4 crystal: a new material for diode-pumped lasers," Sov. J. Quantum Electron. 22, 1071-1072 (1992).
[CrossRef]

Jensen, T.

A. Zagumennyi, V. Ostroumov, I. Shcherbakov, T. Jensen, J. Meyen, and G. Huber, "The Nd:GdVO4 crystal: a new material for diode-pumped lasers," Sov. J. Quantum Electron. 22, 1071-1072 (1992).
[CrossRef]

Jiang, M.

J. Liu, X. Meng, Z. Shao, M. Jiang, B. Ozygus, A. Ding, and H. Weber, "Pulse energy enhancement in passive Q-switching operation with a class of Nd:GdxY1−xVO4 crystals," Appl. Phys. Lett. 83, 1289-1291 (2003).
[CrossRef]

J. Liu, C. Wang, C. Q. Wang, X. Meng, H. Zhang, L. Zhu, J. Wang, Z. Shao, and M. Jiang, "Diode end-pumped Q-switched high-power intracavity frequency-doubled Nd:GdVO4 KTP green laser," Appl. Phys. B 72, 171-174 (2001).
[CrossRef]

J. Liu, Z. Shao, H. Zhang, X. Meng, L. Zhu, J. Wang, Y. Liu, and M. Jiang, "Diode-laser-array end-pumped intracavity frequency-doubled 3.6W CW Nd:GdVO4 KTP green laser," Opt. Commun. 173, 311-314 (2000).
[CrossRef]

Kalisky, Y.

Y. Shimony, Z. Bursjten, and Y. Kalisky, "Cr4+:YAG as passive Q-switch and Brewster plate in a pulsed Nd:YAG laser," IEEE J. Quantum Electron. 31, 1738-1741 (1995).
[CrossRef]

Koechner, W.

W. Koechner, Solid-State Laser Engineering (Academic, 1999).

Lam, Y. L.

D. Y. Shen, H. R. Yang, J. G. Liu, S. C. Tam, Y. L. Lam, W. J. Xie, J. H. Gu, and K. Ueda, "Efficient and compact intracavity-frequency-doubled Nd:GdVO4 KTP laser end-pumped by a fiber-coupled laser diode," Appl. Phys. B 72, 263-266 (2001).
[CrossRef]

Li, D.

K. Yang, S. Zhao, G. Li, D. Li, and J. Zou, "Laser-diode pumped Nd:GdVO4 CW green laser with periodically poled KTP," Electron. Lett. 41, 191-192 (2005).
[CrossRef]

Li, G.

K. Yang, S. Zhao, G. Li, D. Li, and J. Zou, "Laser-diode pumped Nd:GdVO4 CW green laser with periodically poled KTP," Electron. Lett. 41, 191-192 (2005).
[CrossRef]

K. J. Yang, S. Zhao, G. Li, and H. Zhao, "A new model of laser-diode end-pumped actively Q-switched intracavity frequency doubling laser," IEEE J. Quantum Electron. 40, 1252-1257 (2004).
[CrossRef]

G. Li, S. Zhao, H. Zhao, K. Yang, and S. Ding, "Rate equations and solutions of a laser-diode end-pumped passively Q-switched intracavity doubling laser by taking into account intracavity laser spatial distribution," Opt. Commun. 234, 321-328 (2004).
[CrossRef]

Li, Z.

Lim, G.

Liu, J.

J. Liu, X. Meng, Z. Shao, M. Jiang, B. Ozygus, A. Ding, and H. Weber, "Pulse energy enhancement in passive Q-switching operation with a class of Nd:GdxY1−xVO4 crystals," Appl. Phys. Lett. 83, 1289-1291 (2003).
[CrossRef]

J. Liu, Z. Wang, X. Meng, Z. Shao, B. Ozygus, A. Ding, and H. Weber, "Improvement of passive Q-switching performance reached with a new Nd-doped mixed vanadate crystal Nd:Gd0.64Y0.36VO4," Opt. Lett. 28, 2330-2332 (2003).
[CrossRef] [PubMed]

J. Liu, C. Wang, C. Q. Wang, X. Meng, H. Zhang, L. Zhu, J. Wang, Z. Shao, and M. Jiang, "Diode end-pumped Q-switched high-power intracavity frequency-doubled Nd:GdVO4 KTP green laser," Appl. Phys. B 72, 171-174 (2001).
[CrossRef]

J. Liu, Z. Shao, H. Zhang, X. Meng, L. Zhu, J. Wang, Y. Liu, and M. Jiang, "Diode-laser-array end-pumped intracavity frequency-doubled 3.6W CW Nd:GdVO4 KTP green laser," Opt. Commun. 173, 311-314 (2000).
[CrossRef]

Liu, J. G.

D. Y. Shen, H. R. Yang, J. G. Liu, S. C. Tam, Y. L. Lam, W. J. Xie, J. H. Gu, and K. Ueda, "Efficient and compact intracavity-frequency-doubled Nd:GdVO4 KTP laser end-pumped by a fiber-coupled laser diode," Appl. Phys. B 72, 263-266 (2001).
[CrossRef]

Liu, Y.

J. Dong, P. Deng, Y. Liu, Y. Zhang, J. Xu, W. Chen, and X. Xie, "Passively Q-switched Yb:YAG laser with Cr4+:YAG as the saturable absorber," Appl. Opt. 40, 4303-4307 (2001).
[CrossRef]

J. Liu, Z. Shao, H. Zhang, X. Meng, L. Zhu, J. Wang, Y. Liu, and M. Jiang, "Diode-laser-array end-pumped intracavity frequency-doubled 3.6W CW Nd:GdVO4 KTP green laser," Opt. Commun. 173, 311-314 (2000).
[CrossRef]

Luthy, W.

C. Wyss, W. Luthy, H. Weber, V. Vlasoc, Y. Zavartsev, P. Studenikin, A. Zagumennyi, and I. Shcherbakov, "Performance of a diode-pumped 5 W Nd3+:GdVO4 microchip laser at 1.06 μm," Appl. Phys. B 68, 659-661 (1999).
[CrossRef]

Meng, X.

J. Liu, Z. Wang, X. Meng, Z. Shao, B. Ozygus, A. Ding, and H. Weber, "Improvement of passive Q-switching performance reached with a new Nd-doped mixed vanadate crystal Nd:Gd0.64Y0.36VO4," Opt. Lett. 28, 2330-2332 (2003).
[CrossRef] [PubMed]

J. Liu, X. Meng, Z. Shao, M. Jiang, B. Ozygus, A. Ding, and H. Weber, "Pulse energy enhancement in passive Q-switching operation with a class of Nd:GdxY1−xVO4 crystals," Appl. Phys. Lett. 83, 1289-1291 (2003).
[CrossRef]

J. Liu, C. Wang, C. Q. Wang, X. Meng, H. Zhang, L. Zhu, J. Wang, Z. Shao, and M. Jiang, "Diode end-pumped Q-switched high-power intracavity frequency-doubled Nd:GdVO4 KTP green laser," Appl. Phys. B 72, 171-174 (2001).
[CrossRef]

J. Liu, Z. Shao, H. Zhang, X. Meng, L. Zhu, J. Wang, Y. Liu, and M. Jiang, "Diode-laser-array end-pumped intracavity frequency-doubled 3.6W CW Nd:GdVO4 KTP green laser," Opt. Commun. 173, 311-314 (2000).
[CrossRef]

Meyen, J.

A. Zagumennyi, V. Ostroumov, I. Shcherbakov, T. Jensen, J. Meyen, and G. Huber, "The Nd:GdVO4 crystal: a new material for diode-pumped lasers," Sov. J. Quantum Electron. 22, 1071-1072 (1992).
[CrossRef]

Ming, N.

Y. Xue, N. Ming, J. Zhu, and D. Feng, "The second harmonic generation in LiNbO3 crystals with period laminar ferroelectric domains," Chin. Phys. 4, 554-564 (1984).

Moore, N.

Morris, J. A.

Ostroumov, V.

A. Zagumennyi, V. Ostroumov, I. Shcherbakov, T. Jensen, J. Meyen, and G. Huber, "The Nd:GdVO4 crystal: a new material for diode-pumped lasers," Sov. J. Quantum Electron. 22, 1071-1072 (1992).
[CrossRef]

Ozygus, B.

J. Liu, X. Meng, Z. Shao, M. Jiang, B. Ozygus, A. Ding, and H. Weber, "Pulse energy enhancement in passive Q-switching operation with a class of Nd:GdxY1−xVO4 crystals," Appl. Phys. Lett. 83, 1289-1291 (2003).
[CrossRef]

J. Liu, Z. Wang, X. Meng, Z. Shao, B. Ozygus, A. Ding, and H. Weber, "Improvement of passive Q-switching performance reached with a new Nd-doped mixed vanadate crystal Nd:Gd0.64Y0.36VO4," Opt. Lett. 28, 2330-2332 (2003).
[CrossRef] [PubMed]

Pollock, C. R

Riis, E.

F. Torabi-Goudarzi and E. Riis, "Efficient cw high-power frequency doubling in periodically poled KTP," Opt. Commun. 227, 389-403 (2003).
[CrossRef]

Rosenbluh, M.

S. Greenstein and M. Rosenbluh, "Dynamics of cw intra-cavity second harmonic generation by PPKTP," Opt. Commun. 238, 319-327 (2004).
[CrossRef]

Shao, Z.

J. Liu, Z. Wang, X. Meng, Z. Shao, B. Ozygus, A. Ding, and H. Weber, "Improvement of passive Q-switching performance reached with a new Nd-doped mixed vanadate crystal Nd:Gd0.64Y0.36VO4," Opt. Lett. 28, 2330-2332 (2003).
[CrossRef] [PubMed]

J. Liu, X. Meng, Z. Shao, M. Jiang, B. Ozygus, A. Ding, and H. Weber, "Pulse energy enhancement in passive Q-switching operation with a class of Nd:GdxY1−xVO4 crystals," Appl. Phys. Lett. 83, 1289-1291 (2003).
[CrossRef]

J. Liu, C. Wang, C. Q. Wang, X. Meng, H. Zhang, L. Zhu, J. Wang, Z. Shao, and M. Jiang, "Diode end-pumped Q-switched high-power intracavity frequency-doubled Nd:GdVO4 KTP green laser," Appl. Phys. B 72, 171-174 (2001).
[CrossRef]

J. Liu, Z. Shao, H. Zhang, X. Meng, L. Zhu, J. Wang, Y. Liu, and M. Jiang, "Diode-laser-array end-pumped intracavity frequency-doubled 3.6W CW Nd:GdVO4 KTP green laser," Opt. Commun. 173, 311-314 (2000).
[CrossRef]

Shcherbakov, I.

C. Wyss, W. Luthy, H. Weber, V. Vlasoc, Y. Zavartsev, P. Studenikin, A. Zagumennyi, and I. Shcherbakov, "Performance of a diode-pumped 5 W Nd3+:GdVO4 microchip laser at 1.06 μm," Appl. Phys. B 68, 659-661 (1999).
[CrossRef]

A. Zagumennyi, V. Ostroumov, I. Shcherbakov, T. Jensen, J. Meyen, and G. Huber, "The Nd:GdVO4 crystal: a new material for diode-pumped lasers," Sov. J. Quantum Electron. 22, 1071-1072 (1992).
[CrossRef]

Shen, D. Y.

D. Y. Shen, H. R. Yang, J. G. Liu, S. C. Tam, Y. L. Lam, W. J. Xie, J. H. Gu, and K. Ueda, "Efficient and compact intracavity-frequency-doubled Nd:GdVO4 KTP laser end-pumped by a fiber-coupled laser diode," Appl. Phys. B 72, 263-266 (2001).
[CrossRef]

Shimony, Y.

Y. Shimony, Z. Bursjten, and Y. Kalisky, "Cr4+:YAG as passive Q-switch and Brewster plate in a pulsed Nd:YAG laser," IEEE J. Quantum Electron. 31, 1738-1741 (1995).
[CrossRef]

Studenikin, P.

C. Wyss, W. Luthy, H. Weber, V. Vlasoc, Y. Zavartsev, P. Studenikin, A. Zagumennyi, and I. Shcherbakov, "Performance of a diode-pumped 5 W Nd3+:GdVO4 microchip laser at 1.06 μm," Appl. Phys. B 68, 659-661 (1999).
[CrossRef]

Tam, S. C.

D. Y. Shen, H. R. Yang, J. G. Liu, S. C. Tam, Y. L. Lam, W. J. Xie, J. H. Gu, and K. Ueda, "Efficient and compact intracavity-frequency-doubled Nd:GdVO4 KTP laser end-pumped by a fiber-coupled laser diode," Appl. Phys. B 72, 263-266 (2001).
[CrossRef]

Torabi-Goudarzi, F.

F. Torabi-Goudarzi and E. Riis, "Efficient cw high-power frequency doubling in periodically poled KTP," Opt. Commun. 227, 389-403 (2003).
[CrossRef]

Tsai, S. W.

Y. F. Chen, Y. S. Chen, and S. W. Tsai, "Diode-pumped Q-switched laser with intracavity sum frequency mixing in periodically poled KTP," Appl. Phys. B 79, 207-210 (2004).
[CrossRef]

Ueda, K.

D. Y. Shen, H. R. Yang, J. G. Liu, S. C. Tam, Y. L. Lam, W. J. Xie, J. H. Gu, and K. Ueda, "Efficient and compact intracavity-frequency-doubled Nd:GdVO4 KTP laser end-pumped by a fiber-coupled laser diode," Appl. Phys. B 72, 263-266 (2001).
[CrossRef]

Vlasoc, V.

C. Wyss, W. Luthy, H. Weber, V. Vlasoc, Y. Zavartsev, P. Studenikin, A. Zagumennyi, and I. Shcherbakov, "Performance of a diode-pumped 5 W Nd3+:GdVO4 microchip laser at 1.06 μm," Appl. Phys. B 68, 659-661 (1999).
[CrossRef]

Wang, C.

J. Liu, C. Wang, C. Q. Wang, X. Meng, H. Zhang, L. Zhu, J. Wang, Z. Shao, and M. Jiang, "Diode end-pumped Q-switched high-power intracavity frequency-doubled Nd:GdVO4 KTP green laser," Appl. Phys. B 72, 171-174 (2001).
[CrossRef]

Wang, C. L.

Y. F. Chen, T. M. Huang, and C. L. Wang, "Passively Q-switched diode-pumped Nd:YVO4/Cr4+:YAG single-frequency microchip laser," Electron. Lett. 33, 1880-1881 (1997).
[CrossRef]

Wang, C. Q.

J. Liu, C. Wang, C. Q. Wang, X. Meng, H. Zhang, L. Zhu, J. Wang, Z. Shao, and M. Jiang, "Diode end-pumped Q-switched high-power intracavity frequency-doubled Nd:GdVO4 KTP green laser," Appl. Phys. B 72, 171-174 (2001).
[CrossRef]

Wang, J.

J. Liu, C. Wang, C. Q. Wang, X. Meng, H. Zhang, L. Zhu, J. Wang, Z. Shao, and M. Jiang, "Diode end-pumped Q-switched high-power intracavity frequency-doubled Nd:GdVO4 KTP green laser," Appl. Phys. B 72, 171-174 (2001).
[CrossRef]

J. Liu, Z. Shao, H. Zhang, X. Meng, L. Zhu, J. Wang, Y. Liu, and M. Jiang, "Diode-laser-array end-pumped intracavity frequency-doubled 3.6W CW Nd:GdVO4 KTP green laser," Opt. Commun. 173, 311-314 (2000).
[CrossRef]

Wang, Z.

Weber, H.

J. Liu, Z. Wang, X. Meng, Z. Shao, B. Ozygus, A. Ding, and H. Weber, "Improvement of passive Q-switching performance reached with a new Nd-doped mixed vanadate crystal Nd:Gd0.64Y0.36VO4," Opt. Lett. 28, 2330-2332 (2003).
[CrossRef] [PubMed]

J. Liu, X. Meng, Z. Shao, M. Jiang, B. Ozygus, A. Ding, and H. Weber, "Pulse energy enhancement in passive Q-switching operation with a class of Nd:GdxY1−xVO4 crystals," Appl. Phys. Lett. 83, 1289-1291 (2003).
[CrossRef]

C. Wyss, W. Luthy, H. Weber, V. Vlasoc, Y. Zavartsev, P. Studenikin, A. Zagumennyi, and I. Shcherbakov, "Performance of a diode-pumped 5 W Nd3+:GdVO4 microchip laser at 1.06 μm," Appl. Phys. B 68, 659-661 (1999).
[CrossRef]

Wyss, C.

C. Wyss, W. Luthy, H. Weber, V. Vlasoc, Y. Zavartsev, P. Studenikin, A. Zagumennyi, and I. Shcherbakov, "Performance of a diode-pumped 5 W Nd3+:GdVO4 microchip laser at 1.06 μm," Appl. Phys. B 68, 659-661 (1999).
[CrossRef]

Xie, W. J.

D. Y. Shen, H. R. Yang, J. G. Liu, S. C. Tam, Y. L. Lam, W. J. Xie, J. H. Gu, and K. Ueda, "Efficient and compact intracavity-frequency-doubled Nd:GdVO4 KTP laser end-pumped by a fiber-coupled laser diode," Appl. Phys. B 72, 263-266 (2001).
[CrossRef]

Xie, X.

Xiong, Z.

Xu, J.

Xue, Y.

Y. Xue, N. Ming, J. Zhu, and D. Feng, "The second harmonic generation in LiNbO3 crystals with period laminar ferroelectric domains," Chin. Phys. 4, 554-564 (1984).

Yang, H. R.

D. Y. Shen, H. R. Yang, J. G. Liu, S. C. Tam, Y. L. Lam, W. J. Xie, J. H. Gu, and K. Ueda, "Efficient and compact intracavity-frequency-doubled Nd:GdVO4 KTP laser end-pumped by a fiber-coupled laser diode," Appl. Phys. B 72, 263-266 (2001).
[CrossRef]

Yang, K.

K. Yang, S. Zhao, G. Li, D. Li, and J. Zou, "Laser-diode pumped Nd:GdVO4 CW green laser with periodically poled KTP," Electron. Lett. 41, 191-192 (2005).
[CrossRef]

G. Li, S. Zhao, H. Zhao, K. Yang, and S. Ding, "Rate equations and solutions of a laser-diode end-pumped passively Q-switched intracavity doubling laser by taking into account intracavity laser spatial distribution," Opt. Commun. 234, 321-328 (2004).
[CrossRef]

Yang, K. J.

K. J. Yang, S. Zhao, G. Li, and H. Zhao, "A new model of laser-diode end-pumped actively Q-switched intracavity frequency doubling laser," IEEE J. Quantum Electron. 40, 1252-1257 (2004).
[CrossRef]

Zagumennyi, A.

C. Wyss, W. Luthy, H. Weber, V. Vlasoc, Y. Zavartsev, P. Studenikin, A. Zagumennyi, and I. Shcherbakov, "Performance of a diode-pumped 5 W Nd3+:GdVO4 microchip laser at 1.06 μm," Appl. Phys. B 68, 659-661 (1999).
[CrossRef]

A. Zagumennyi, V. Ostroumov, I. Shcherbakov, T. Jensen, J. Meyen, and G. Huber, "The Nd:GdVO4 crystal: a new material for diode-pumped lasers," Sov. J. Quantum Electron. 22, 1071-1072 (1992).
[CrossRef]

Zavartsev, Y.

C. Wyss, W. Luthy, H. Weber, V. Vlasoc, Y. Zavartsev, P. Studenikin, A. Zagumennyi, and I. Shcherbakov, "Performance of a diode-pumped 5 W Nd3+:GdVO4 microchip laser at 1.06 μm," Appl. Phys. B 68, 659-661 (1999).
[CrossRef]

Zhang, H.

J. Liu, C. Wang, C. Q. Wang, X. Meng, H. Zhang, L. Zhu, J. Wang, Z. Shao, and M. Jiang, "Diode end-pumped Q-switched high-power intracavity frequency-doubled Nd:GdVO4 KTP green laser," Appl. Phys. B 72, 171-174 (2001).
[CrossRef]

J. Liu, Z. Shao, H. Zhang, X. Meng, L. Zhu, J. Wang, Y. Liu, and M. Jiang, "Diode-laser-array end-pumped intracavity frequency-doubled 3.6W CW Nd:GdVO4 KTP green laser," Opt. Commun. 173, 311-314 (2000).
[CrossRef]

Zhang, Y.

Zhao, H.

G. Li, S. Zhao, H. Zhao, K. Yang, and S. Ding, "Rate equations and solutions of a laser-diode end-pumped passively Q-switched intracavity doubling laser by taking into account intracavity laser spatial distribution," Opt. Commun. 234, 321-328 (2004).
[CrossRef]

K. J. Yang, S. Zhao, G. Li, and H. Zhao, "A new model of laser-diode end-pumped actively Q-switched intracavity frequency doubling laser," IEEE J. Quantum Electron. 40, 1252-1257 (2004).
[CrossRef]

Zhao, S.

K. Yang, S. Zhao, G. Li, D. Li, and J. Zou, "Laser-diode pumped Nd:GdVO4 CW green laser with periodically poled KTP," Electron. Lett. 41, 191-192 (2005).
[CrossRef]

G. Li, S. Zhao, H. Zhao, K. Yang, and S. Ding, "Rate equations and solutions of a laser-diode end-pumped passively Q-switched intracavity doubling laser by taking into account intracavity laser spatial distribution," Opt. Commun. 234, 321-328 (2004).
[CrossRef]

K. J. Yang, S. Zhao, G. Li, and H. Zhao, "A new model of laser-diode end-pumped actively Q-switched intracavity frequency doubling laser," IEEE J. Quantum Electron. 40, 1252-1257 (2004).
[CrossRef]

J. Zheng, S. Zhao, and L. Chen, "Laser-diode end-pumped passively Q-switched Nd:YVO4 laser with Cr4+:YAG saturable absorber," Opt. Eng. (Bellingham) 41, 2271-2275 (2002).
[CrossRef]

Zheng, J.

J. Zheng, S. Zhao, and L. Chen, "Laser-diode end-pumped passively Q-switched Nd:YVO4 laser with Cr4+:YAG saturable absorber," Opt. Eng. (Bellingham) 41, 2271-2275 (2002).
[CrossRef]

Zhu, J.

Y. Xue, N. Ming, J. Zhu, and D. Feng, "The second harmonic generation in LiNbO3 crystals with period laminar ferroelectric domains," Chin. Phys. 4, 554-564 (1984).

Zhu, L.

J. Liu, C. Wang, C. Q. Wang, X. Meng, H. Zhang, L. Zhu, J. Wang, Z. Shao, and M. Jiang, "Diode end-pumped Q-switched high-power intracavity frequency-doubled Nd:GdVO4 KTP green laser," Appl. Phys. B 72, 171-174 (2001).
[CrossRef]

J. Liu, Z. Shao, H. Zhang, X. Meng, L. Zhu, J. Wang, Y. Liu, and M. Jiang, "Diode-laser-array end-pumped intracavity frequency-doubled 3.6W CW Nd:GdVO4 KTP green laser," Opt. Commun. 173, 311-314 (2000).
[CrossRef]

Zou, J.

K. Yang, S. Zhao, G. Li, D. Li, and J. Zou, "Laser-diode pumped Nd:GdVO4 CW green laser with periodically poled KTP," Electron. Lett. 41, 191-192 (2005).
[CrossRef]

Appl. Opt.

Appl. Phys. B

Y. F. Chen, Y. S. Chen, and S. W. Tsai, "Diode-pumped Q-switched laser with intracavity sum frequency mixing in periodically poled KTP," Appl. Phys. B 79, 207-210 (2004).
[CrossRef]

C. Wyss, W. Luthy, H. Weber, V. Vlasoc, Y. Zavartsev, P. Studenikin, A. Zagumennyi, and I. Shcherbakov, "Performance of a diode-pumped 5 W Nd3+:GdVO4 microchip laser at 1.06 μm," Appl. Phys. B 68, 659-661 (1999).
[CrossRef]

D. Y. Shen, H. R. Yang, J. G. Liu, S. C. Tam, Y. L. Lam, W. J. Xie, J. H. Gu, and K. Ueda, "Efficient and compact intracavity-frequency-doubled Nd:GdVO4 KTP laser end-pumped by a fiber-coupled laser diode," Appl. Phys. B 72, 263-266 (2001).
[CrossRef]

J. Liu, C. Wang, C. Q. Wang, X. Meng, H. Zhang, L. Zhu, J. Wang, Z. Shao, and M. Jiang, "Diode end-pumped Q-switched high-power intracavity frequency-doubled Nd:GdVO4 KTP green laser," Appl. Phys. B 72, 171-174 (2001).
[CrossRef]

Appl. Phys. Lett.

J. Liu, X. Meng, Z. Shao, M. Jiang, B. Ozygus, A. Ding, and H. Weber, "Pulse energy enhancement in passive Q-switching operation with a class of Nd:GdxY1−xVO4 crystals," Appl. Phys. Lett. 83, 1289-1291 (2003).
[CrossRef]

Chin. Phys.

Y. Xue, N. Ming, J. Zhu, and D. Feng, "The second harmonic generation in LiNbO3 crystals with period laminar ferroelectric domains," Chin. Phys. 4, 554-564 (1984).

Electron. Lett.

Y. F. Chen, T. M. Huang, and C. L. Wang, "Passively Q-switched diode-pumped Nd:YVO4/Cr4+:YAG single-frequency microchip laser," Electron. Lett. 33, 1880-1881 (1997).
[CrossRef]

K. Yang, S. Zhao, G. Li, D. Li, and J. Zou, "Laser-diode pumped Nd:GdVO4 CW green laser with periodically poled KTP," Electron. Lett. 41, 191-192 (2005).
[CrossRef]

IEEE J. Quantum Electron.

Y. Shimony, Z. Bursjten, and Y. Kalisky, "Cr4+:YAG as passive Q-switch and Brewster plate in a pulsed Nd:YAG laser," IEEE J. Quantum Electron. 31, 1738-1741 (1995).
[CrossRef]

K. J. Yang, S. Zhao, G. Li, and H. Zhao, "A new model of laser-diode end-pumped actively Q-switched intracavity frequency doubling laser," IEEE J. Quantum Electron. 40, 1252-1257 (2004).
[CrossRef]

J. Opt. Soc. Am. B

Opt. Commun.

J. Liu, Z. Shao, H. Zhang, X. Meng, L. Zhu, J. Wang, Y. Liu, and M. Jiang, "Diode-laser-array end-pumped intracavity frequency-doubled 3.6W CW Nd:GdVO4 KTP green laser," Opt. Commun. 173, 311-314 (2000).
[CrossRef]

F. Torabi-Goudarzi and E. Riis, "Efficient cw high-power frequency doubling in periodically poled KTP," Opt. Commun. 227, 389-403 (2003).
[CrossRef]

S. Greenstein and M. Rosenbluh, "Dynamics of cw intra-cavity second harmonic generation by PPKTP," Opt. Commun. 238, 319-327 (2004).
[CrossRef]

G. Li, S. Zhao, H. Zhao, K. Yang, and S. Ding, "Rate equations and solutions of a laser-diode end-pumped passively Q-switched intracavity doubling laser by taking into account intracavity laser spatial distribution," Opt. Commun. 234, 321-328 (2004).
[CrossRef]

Opt. Eng. (Bellingham)

J. Zheng, S. Zhao, and L. Chen, "Laser-diode end-pumped passively Q-switched Nd:YVO4 laser with Cr4+:YAG saturable absorber," Opt. Eng. (Bellingham) 41, 2271-2275 (2002).
[CrossRef]

Opt. Lett.

Sov. J. Quantum Electron.

A. Zagumennyi, V. Ostroumov, I. Shcherbakov, T. Jensen, J. Meyen, and G. Huber, "The Nd:GdVO4 crystal: a new material for diode-pumped lasers," Sov. J. Quantum Electron. 22, 1071-1072 (1992).
[CrossRef]

Other

W. Koechner, Solid-State Laser Engineering (Academic, 1999).

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Figures (8)

Fig. 1
Fig. 1

Scheme of the experimental setup.

Fig. 2
Fig. 2

Average output power of cw and passively Q-switched Nd : Gd V O 4 –PPKTP lasers with different Cr 4 + : YAG crystals.

Fig. 3
Fig. 3

(Color online) Pulse width with the incident pump power.

Fig. 4
Fig. 4

(Color online) Pulse repetition rates versus the pump power.

Fig. 5
Fig. 5

(Color online) Pulse energy versus the incident pump power.

Fig. 6
Fig. 6

(Color online) Pulse peak power versus the incident pump power.

Fig. 7
Fig. 7

Temporal profile of the passively Q-switched Nd : Gd V O 4 –PPKTP green laser pulse of 35 ns with 91% Cr:YAG at the maximum incident pump power of 4.44 W. Solid curve, oscilloscope trace; dotted curve, calculated result with ASE; dashed curve, calculated result without ASE.

Fig. 8
Fig. 8

(Color online) Pulse width versus the ASE parameter ξ at T 0 = 0.91 and an incident pump power of 4.44 W.

Tables (1)

Tables Icon

Table 1 Parameters of the Theoretical Calculation[18, 19, 20, 21]

Equations (10)

Equations on this page are rendered with MathJax. Learn more.

E n = d eff 2 2 ω 2 n ω 2 n 2 ω c 3 ϵ 0 J 2 ω 2 A k ,
J 2 ω = 0 l k exp ( i Δ k z ) ( 1 + 2 i z b ) d z .
P ( ω , r , t ) = 1 2 A k ω c ϕ k ( r , t ) ,
δ n ( r , t ) = P ( 2 ω , r , t ) P ( ω , r , t ) = E n P ( ω , r , t ) = δ k ϕ k ( r , t ) ,
δ k = 1 2 E n A k ω c .
0 d ϕ ( r , t ) d t 2 π r d r = 0 ( 1 t r { 2 σ n ( r , t ) l ϕ g ( r , t ) 2 σ g n s 1 ( r , t ) l s ϕ s ( r , t ) 2 σ e [ n s 0 n s 1 ( r , t ) ] l s ϕ s ( r , t ) δ n ( r , t ) ϕ k ( r , t ) L ϕ ( r , t ) } + ξ n ( r , t ) τ 21 ) 2 π r d r ,
d n ( r , t ) d t = R in exp ( 2 r 2 ϖ p 2 ) n ( r , t ) τ σ c n ( r , t ) ϕ g ( r , t ) ξ n ( r , t ) τ 21 ,
d n s 1 ( r , t ) d t = n s 0 n s 1 ( r , t ) τ s σ g c n s 1 ( r , t ) ϕ s ( r , t ) ,
E = 1 4 ζ E n ( A k ω c ) 2 ϕ int 2 ,
P = 1 4 ζ E n ( A k ω c ) 2 ϕ k m 2 ,

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