Abstract

By using both a β-BaB2O4 (BBO) electro-optic (EO) modulator and a GaAs saturable absorber, a laser-diode (LD) end-pumped doubly Q-switched YVO4Nd:YVO4 laser is realized. A symmetric factor is defined to describe the temporal symmetry of output pulses. At 20W incident pump power, a symmetric factor of 1.04 is obtained by the doubly Q-switched laser with 2.5ns pulse width and 300kW peak power. The experimental results show that the double Q-switching can generate a symmetric and shorter pulse with higher peak power in comparison with the single EO Q-switching. In order to explain these results, a rate equation model has been developed, and it leads to good agreement with the experimental data.

© 2009 Optical Society of America

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  1. J. Y. Huang, H. C. Liang, K. W. Su, and Y. Chen, “High power passively Q-switched ytterbium fiber laser with Cr4+:YAG as a saturable absorber,” Opt. Express 15, 473-479 (2007).
    [Crossref] [PubMed]
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    [Crossref]
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    [Crossref] [PubMed]
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    [Crossref] [PubMed]
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    [Crossref]
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    [Crossref] [PubMed]
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    [Crossref]
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    [Crossref]
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    [Crossref]
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    [Crossref] [PubMed]
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    [Crossref]
  12. S. Zhao, J. Zhao, G. Li, K. Yang, Y. Sun, D. Li, J. An, J. Wang, and M. Li, “Doubly Q-switched laser with electric-optic modulator and GaAs saturable absorber,” Laser Phys. Lett. 3, 471-473 (2006).
    [Crossref]
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    [Crossref]
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    [Crossref]
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    [Crossref]
  16. G. C. Valley and A. L. Smirl, “Theory of transient energy transfer in Gallium Arsenide,” IEEE J. Quantum Electron. 24, 304-310 (1988).
    [Crossref]
  17. 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]
  18. T. T. Kajava and A. L. Gaeta, “Intra-cavity frequency-doubling of a Nd:YAG laser passively Q-switched with GaAs,” Opt. Commun. 137, 93-97 (1997).
    [Crossref]
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    [Crossref]
  20. J. J. Degnan, “Theory of the optimally coupled Q-switched laser,” IEEE J. Quantum Electron. 25, 214-220 (1989).
    [Crossref]

2007 (5)

2006 (1)

S. Zhao, J. Zhao, G. Li, K. Yang, Y. Sun, D. Li, J. An, J. Wang, and M. Li, “Doubly Q-switched laser with electric-optic modulator and GaAs saturable absorber,” Laser Phys. Lett. 3, 471-473 (2006).
[Crossref]

2005 (3)

G. Li, Z. Zhao, K. Yan, D. Li, and J. Zou, “Pulse shape symmetry and pulse width reduction in diode-pumped doubly Q-switched Nd:YVO4/KTP green laser with AO and GaAs,” Opt. Express 13, 1178-1187 (2005).
[Crossref] [PubMed]

K. Yang, S. Zhao, and G. Li, “Pulse symmetry and pulse duration compression in a diode-pumped doubly passively Q-switched Nd:YVO4 laser with Cr4+:YAG and GaAs saturable absorbers,” Appl. Phys. B: Lasers Opt. 81, 633-636 (2005).
[Crossref]

R. D. Stultz, V. Leyva, and K. Spariosu, “Short pulse, high-repetition rate, passively Q-switched Er:yttrium-aluminum-garnet laser at 1.6 microns,” Appl. Phys. Lett. 87, 241116-241118 (2005).
[Crossref]

2004 (3)

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]

Z. Li, Z. Xiong, N. Moore, G. C. Lim, W. L. Huang, and D. X. Huang, “Pulse width reduction in AO Q-switched diode-pumped Nd:YVO4 laser with GaAs coupler,” Opt. Commun. 237, 411-416 (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]

2000 (1)

T. Erneux, P. Peterson, and A. Gavrielides, “The pulse shape of a passively Q-switched microchip laser,” Eur. Phys. J. D 10, 423-431 (2000).
[Crossref]

1998 (1)

G. J. Friel, R. S. Conney, A. J. Kemp, B. D. Sinclair, and J. M. Ley, “Q-switching of a diode-pumped Nd:YVO4 laser using a quadrupole electron-optic deflector,” Appl. Phys. B: Lasers Opt. 67, 267-270 (1998).
[Crossref]

1997 (1)

T. T. Kajava and A. L. Gaeta, “Intra-cavity frequency-doubling of a Nd:YAG laser passively Q-switched with GaAs,” Opt. Commun. 137, 93-97 (1997).
[Crossref]

1989 (1)

J. J. Degnan, “Theory of the optimally coupled Q-switched laser,” IEEE J. Quantum Electron. 25, 214-220 (1989).
[Crossref]

1988 (3)

W. P. Risk, “Modeling of longitudinally pumped solid-state lasers exhibiting reabsorption losses,” J. Opt. Soc. Am. B 5, 1412-1423 (1988).
[Crossref]

A. L. Smirl, G. C. Valley, K. M. Bohnert, and T. F. Boggess, “Picosecond photorefractive and free-carrier transient energy transfer in GaAs at 1 μm,” IEEE J. Quantum Electron. 24, 289-303 (1988).
[Crossref]

G. C. Valley and A. L. Smirl, “Theory of transient energy transfer in Gallium Arsenide,” IEEE J. Quantum Electron. 24, 304-310 (1988).
[Crossref]

1980 (1)

W. E. Schmid, “Pulse stretching in a Q-switched Nd:YAG laser,” IEEE J. Quantum Electron. 16, 790-794 (1980).
[Crossref]

An, J.

S. Zhao, J. Zhao, G. Li, K. Yang, Y. Sun, D. Li, J. An, J. Wang, and M. Li, “Doubly Q-switched laser with electric-optic modulator and GaAs saturable absorber,” Laser Phys. Lett. 3, 471-473 (2006).
[Crossref]

Boggess, T. F.

A. L. Smirl, G. C. Valley, K. M. Bohnert, and T. F. Boggess, “Picosecond photorefractive and free-carrier transient energy transfer in GaAs at 1 μm,” IEEE J. Quantum Electron. 24, 289-303 (1988).
[Crossref]

Bohnert, K. M.

A. L. Smirl, G. C. Valley, K. M. Bohnert, and T. F. Boggess, “Picosecond photorefractive and free-carrier transient energy transfer in GaAs at 1 μm,” IEEE J. Quantum Electron. 24, 289-303 (1988).
[Crossref]

Chen, Y.

Conney, R. S.

G. J. Friel, R. S. Conney, A. J. Kemp, B. D. Sinclair, and J. M. Ley, “Q-switching of a diode-pumped Nd:YVO4 laser using a quadrupole electron-optic deflector,” Appl. Phys. B: Lasers Opt. 67, 267-270 (1998).
[Crossref]

Degnan, J. J.

J. J. Degnan, “Theory of the optimally coupled Q-switched laser,” IEEE J. Quantum Electron. 25, 214-220 (1989).
[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]

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.

Du, C.

Erneux, T.

T. Erneux, P. Peterson, and A. Gavrielides, “The pulse shape of a passively Q-switched microchip laser,” Eur. Phys. J. D 10, 423-431 (2000).
[Crossref]

Friel, G. J.

G. J. Friel, R. S. Conney, A. J. Kemp, B. D. Sinclair, and J. M. Ley, “Q-switching of a diode-pumped Nd:YVO4 laser using a quadrupole electron-optic deflector,” Appl. Phys. B: Lasers Opt. 67, 267-270 (1998).
[Crossref]

Gaeta, A. L.

T. T. Kajava and A. L. Gaeta, “Intra-cavity frequency-doubling of a Nd:YAG laser passively Q-switched with GaAs,” Opt. Commun. 137, 93-97 (1997).
[Crossref]

Gavrielides, A.

T. Erneux, P. Peterson, and A. Gavrielides, “The pulse shape of a passively Q-switched microchip laser,” Eur. Phys. J. D 10, 423-431 (2000).
[Crossref]

Hakulinen, T.

Huang, D. X.

Z. Li, Z. Xiong, N. Moore, G. C. Lim, W. L. Huang, and D. X. Huang, “Pulse width reduction in AO Q-switched diode-pumped Nd:YVO4 laser with GaAs coupler,” Opt. Commun. 237, 411-416 (2004).
[Crossref]

Huang, J. Y.

Huang, W. L.

Z. Li, Z. Xiong, N. Moore, G. C. Lim, W. L. Huang, and D. X. Huang, “Pulse width reduction in AO Q-switched diode-pumped Nd:YVO4 laser with GaAs coupler,” Opt. Commun. 237, 411-416 (2004).
[Crossref]

Kajava, T. T.

T. T. Kajava and A. L. Gaeta, “Intra-cavity frequency-doubling of a Nd:YAG laser passively Q-switched with GaAs,” Opt. Commun. 137, 93-97 (1997).
[Crossref]

Kaminskii, A. A.

Kemp, A. J.

G. J. Friel, R. S. Conney, A. J. Kemp, B. D. Sinclair, and J. M. Ley, “Q-switching of a diode-pumped Nd:YVO4 laser using a quadrupole electron-optic deflector,” Appl. Phys. B: Lasers Opt. 67, 267-270 (1998).
[Crossref]

Ley, J. M.

G. J. Friel, R. S. Conney, A. J. Kemp, B. D. Sinclair, and J. M. Ley, “Q-switching of a diode-pumped Nd:YVO4 laser using a quadrupole electron-optic deflector,” Appl. Phys. B: Lasers Opt. 67, 267-270 (1998).
[Crossref]

Leyva, V.

R. D. Stultz, V. Leyva, and K. Spariosu, “Short pulse, high-repetition rate, passively Q-switched Er:yttrium-aluminum-garnet laser at 1.6 microns,” Appl. Phys. Lett. 87, 241116-241118 (2005).
[Crossref]

Li, D.

S. Zhao, J. Zhao, G. Li, K. Yang, Y. Sun, D. Li, J. An, J. Wang, and M. Li, “Doubly Q-switched laser with electric-optic modulator and GaAs saturable absorber,” Laser Phys. Lett. 3, 471-473 (2006).
[Crossref]

G. Li, Z. Zhao, K. Yan, D. Li, and J. Zou, “Pulse shape symmetry and pulse width reduction in diode-pumped doubly Q-switched Nd:YVO4/KTP green laser with AO and GaAs,” Opt. Express 13, 1178-1187 (2005).
[Crossref] [PubMed]

Li, G.

S. Zhao, J. Zhao, G. Li, K. Yang, Y. Sun, D. Li, J. An, J. Wang, and M. Li, “Doubly Q-switched laser with electric-optic modulator and GaAs saturable absorber,” Laser Phys. Lett. 3, 471-473 (2006).
[Crossref]

K. Yang, S. Zhao, and G. Li, “Pulse symmetry and pulse duration compression in a diode-pumped doubly passively Q-switched Nd:YVO4 laser with Cr4+:YAG and GaAs saturable absorbers,” Appl. Phys. B: Lasers Opt. 81, 633-636 (2005).
[Crossref]

G. Li, Z. Zhao, K. Yan, D. Li, and J. Zou, “Pulse shape symmetry and pulse width reduction in diode-pumped doubly Q-switched Nd:YVO4/KTP green laser with AO and GaAs,” Opt. Express 13, 1178-1187 (2005).
[Crossref] [PubMed]

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]

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, M.

S. Zhao, J. Zhao, G. Li, K. Yang, Y. Sun, D. Li, J. An, J. Wang, and M. Li, “Doubly Q-switched laser with electric-optic modulator and GaAs saturable absorber,” Laser Phys. Lett. 3, 471-473 (2006).
[Crossref]

Li, T.

Z. Zhuo, T. Li, X. Li, and H. Yang, “Investigation of Nd:YVO4/YVO4 composite crystal and its laser performance pumped by a fiber coupled diode laser,” Opt. Commun. 274, 176-181 (2007).
[Crossref]

Li, X.

Z. Zhuo, T. Li, X. Li, and H. Yang, “Investigation of Nd:YVO4/YVO4 composite crystal and its laser performance pumped by a fiber coupled diode laser,” Opt. Commun. 274, 176-181 (2007).
[Crossref]

Li, Z.

Z. Li, Z. Xiong, N. Moore, G. C. Lim, W. L. Huang, and D. X. Huang, “Pulse width reduction in AO Q-switched diode-pumped Nd:YVO4 laser with GaAs coupler,” Opt. Commun. 237, 411-416 (2004).
[Crossref]

Liang, H. C.

Lim, G. C.

Z. Li, Z. Xiong, N. Moore, G. C. Lim, W. L. Huang, and D. X. Huang, “Pulse width reduction in AO Q-switched diode-pumped Nd:YVO4 laser with GaAs coupler,” Opt. Commun. 237, 411-416 (2004).
[Crossref]

Moore, N.

Z. Li, Z. Xiong, N. Moore, G. C. Lim, W. L. Huang, and D. X. Huang, “Pulse width reduction in AO Q-switched diode-pumped Nd:YVO4 laser with GaAs coupler,” Opt. Commun. 237, 411-416 (2004).
[Crossref]

Okhotnikov, O. G.

Peterson, P.

T. Erneux, P. Peterson, and A. Gavrielides, “The pulse shape of a passively Q-switched microchip laser,” Eur. Phys. J. D 10, 423-431 (2000).
[Crossref]

Qin, W.

Risk, W. P.

Ruan, S.

Schmid, W. E.

W. E. Schmid, “Pulse stretching in a Q-switched Nd:YAG laser,” IEEE J. Quantum Electron. 16, 790-794 (1980).
[Crossref]

Sinclair, B. D.

G. J. Friel, R. S. Conney, A. J. Kemp, B. D. Sinclair, and J. M. Ley, “Q-switching of a diode-pumped Nd:YVO4 laser using a quadrupole electron-optic deflector,” Appl. Phys. B: Lasers Opt. 67, 267-270 (1998).
[Crossref]

Smirl, A. L.

A. L. Smirl, G. C. Valley, K. M. Bohnert, and T. F. Boggess, “Picosecond photorefractive and free-carrier transient energy transfer in GaAs at 1 μm,” IEEE J. Quantum Electron. 24, 289-303 (1988).
[Crossref]

G. C. Valley and A. L. Smirl, “Theory of transient energy transfer in Gallium Arsenide,” IEEE J. Quantum Electron. 24, 304-310 (1988).
[Crossref]

Spariosu, K.

R. D. Stultz, V. Leyva, and K. Spariosu, “Short pulse, high-repetition rate, passively Q-switched Er:yttrium-aluminum-garnet laser at 1.6 microns,” Appl. Phys. Lett. 87, 241116-241118 (2005).
[Crossref]

Stultz, R. D.

R. D. Stultz, V. Leyva, and K. Spariosu, “Short pulse, high-repetition rate, passively Q-switched Er:yttrium-aluminum-garnet laser at 1.6 microns,” Appl. Phys. Lett. 87, 241116-241118 (2005).
[Crossref]

Su, K. W.

Sun, Y.

S. Zhao, J. Zhao, G. Li, K. Yang, Y. Sun, D. Li, J. An, J. Wang, and M. Li, “Doubly Q-switched laser with electric-optic modulator and GaAs saturable absorber,” Laser Phys. Lett. 3, 471-473 (2006).
[Crossref]

Ueda, K.

Valley, G. C.

A. L. Smirl, G. C. Valley, K. M. Bohnert, and T. F. Boggess, “Picosecond photorefractive and free-carrier transient energy transfer in GaAs at 1 μm,” IEEE J. Quantum Electron. 24, 289-303 (1988).
[Crossref]

G. C. Valley and A. L. Smirl, “Theory of transient energy transfer in Gallium Arsenide,” IEEE J. Quantum Electron. 24, 304-310 (1988).
[Crossref]

Wang, J.

S. Zhao, J. Zhao, G. Li, K. Yang, Y. Sun, D. Li, J. An, J. Wang, and M. Li, “Doubly Q-switched laser with electric-optic modulator and GaAs saturable absorber,” Laser Phys. Lett. 3, 471-473 (2006).
[Crossref]

Wang, Y.

Xiong, Z.

Z. Li, Z. Xiong, N. Moore, G. C. Lim, W. L. Huang, and D. X. Huang, “Pulse width reduction in AO Q-switched diode-pumped Nd:YVO4 laser with GaAs coupler,” Opt. Commun. 237, 411-416 (2004).
[Crossref]

Yan, K.

Yang, H.

Z. Zhuo, T. Li, X. Li, and H. Yang, “Investigation of Nd:YVO4/YVO4 composite crystal and its laser performance pumped by a fiber coupled diode laser,” Opt. Commun. 274, 176-181 (2007).
[Crossref]

Yang, K.

S. Zhao, J. Zhao, G. Li, K. Yang, Y. Sun, D. Li, J. An, J. Wang, and M. Li, “Doubly Q-switched laser with electric-optic modulator and GaAs saturable absorber,” Laser Phys. Lett. 3, 471-473 (2006).
[Crossref]

K. Yang, S. Zhao, and G. Li, “Pulse symmetry and pulse duration compression in a diode-pumped doubly passively Q-switched Nd:YVO4 laser with Cr4+:YAG and GaAs saturable absorbers,” Appl. Phys. B: Lasers Opt. 81, 633-636 (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]

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]

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]

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]

Zhao, J.

S. Zhao, J. Zhao, G. Li, K. Yang, Y. Sun, D. Li, J. An, J. Wang, and M. Li, “Doubly Q-switched laser with electric-optic modulator and GaAs saturable absorber,” Laser Phys. Lett. 3, 471-473 (2006).
[Crossref]

Zhao, S.

S. Zhao, J. Zhao, G. Li, K. Yang, Y. Sun, D. Li, J. An, J. Wang, and M. Li, “Doubly Q-switched laser with electric-optic modulator and GaAs saturable absorber,” Laser Phys. Lett. 3, 471-473 (2006).
[Crossref]

K. Yang, S. Zhao, and G. Li, “Pulse symmetry and pulse duration compression in a diode-pumped doubly passively Q-switched Nd:YVO4 laser with Cr4+:YAG and GaAs saturable absorbers,” Appl. Phys. B: Lasers Opt. 81, 633-636 (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]

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]

Zhao, Z.

Zhuo, Z.

Z. Zhuo, T. Li, X. Li, and H. Yang, “Investigation of Nd:YVO4/YVO4 composite crystal and its laser performance pumped by a fiber coupled diode laser,” Opt. Commun. 274, 176-181 (2007).
[Crossref]

Zou, J.

Appl. Phys. B: Lasers Opt. (2)

G. J. Friel, R. S. Conney, A. J. Kemp, B. D. Sinclair, and J. M. Ley, “Q-switching of a diode-pumped Nd:YVO4 laser using a quadrupole electron-optic deflector,” Appl. Phys. B: Lasers Opt. 67, 267-270 (1998).
[Crossref]

K. Yang, S. Zhao, and G. Li, “Pulse symmetry and pulse duration compression in a diode-pumped doubly passively Q-switched Nd:YVO4 laser with Cr4+:YAG and GaAs saturable absorbers,” Appl. Phys. B: Lasers Opt. 81, 633-636 (2005).
[Crossref]

Appl. Phys. Lett. (1)

R. D. Stultz, V. Leyva, and K. Spariosu, “Short pulse, high-repetition rate, passively Q-switched Er:yttrium-aluminum-garnet laser at 1.6 microns,” Appl. Phys. Lett. 87, 241116-241118 (2005).
[Crossref]

Eur. Phys. J. D (1)

T. Erneux, P. Peterson, and A. Gavrielides, “The pulse shape of a passively Q-switched microchip laser,” Eur. Phys. J. D 10, 423-431 (2000).
[Crossref]

IEEE J. Quantum Electron. (4)

A. L. Smirl, G. C. Valley, K. M. Bohnert, and T. F. Boggess, “Picosecond photorefractive and free-carrier transient energy transfer in GaAs at 1 μm,” IEEE J. Quantum Electron. 24, 289-303 (1988).
[Crossref]

G. C. Valley and A. L. Smirl, “Theory of transient energy transfer in Gallium Arsenide,” IEEE J. Quantum Electron. 24, 304-310 (1988).
[Crossref]

W. E. Schmid, “Pulse stretching in a Q-switched Nd:YAG laser,” IEEE J. Quantum Electron. 16, 790-794 (1980).
[Crossref]

J. J. Degnan, “Theory of the optimally coupled Q-switched laser,” IEEE J. Quantum Electron. 25, 214-220 (1989).
[Crossref]

J. Opt. Soc. Am. B (1)

Laser Phys. Lett. (1)

S. Zhao, J. Zhao, G. Li, K. Yang, Y. Sun, D. Li, J. An, J. Wang, and M. Li, “Doubly Q-switched laser with electric-optic modulator and GaAs saturable absorber,” Laser Phys. Lett. 3, 471-473 (2006).
[Crossref]

Opt. Commun. (5)

Z. Zhuo, T. Li, X. Li, and H. Yang, “Investigation of Nd:YVO4/YVO4 composite crystal and its laser performance pumped by a fiber coupled diode laser,” Opt. Commun. 274, 176-181 (2007).
[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]

T. T. Kajava and A. L. Gaeta, “Intra-cavity frequency-doubling of a Nd:YAG laser passively Q-switched with GaAs,” Opt. Commun. 137, 93-97 (1997).
[Crossref]

Z. Li, Z. Xiong, N. Moore, G. C. Lim, W. L. Huang, and D. X. Huang, “Pulse width reduction in AO Q-switched diode-pumped Nd:YVO4 laser with GaAs coupler,” Opt. Commun. 237, 411-416 (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. Express (3)

Opt. Lett. (2)

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Figures (7)

Fig. 1
Fig. 1

Schematic diagram of the doubly Q-switched Y V O 4 Nd : Y V O 4 laser.

Fig. 2
Fig. 2

Beam size versus incident pump power.

Fig. 3
Fig. 3

Temporal profiles of single pulse for two kinds of lasers. Solid curves, oscilloscope traces; dashed curves, calculated results.

Fig. 4
Fig. 4

Pulse symmetrical factor versus pump power. Solid curves, calculated results; symbols, experimental data.

Fig. 5
Fig. 5

Average output power as a function of incident pump power.

Fig. 6
Fig. 6

Pulse width versus incident pump power. Solid curves, calculated results; symbols, experimental data.

Fig. 7
Fig. 7

The dependences of peak power on incident pump power. Solid curves, calculated results; symbols, experimental data.

Tables (1)

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Table 1 Parameters of the Theoretical Calculation

Equations (16)

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γ = t i t f ,
ϕ ( r , t ) = ϕ ( 0 , t ) exp ( 2 r 2 w l 2 ) ,
ϕ i ( r , t ) = w l 2 w i 2 ϕ ( 0 , t ) exp ( 2 r 2 w i 2 ) ( i = g , e , s ) .
R in ( r , z , t ) = 2 α P in h ν p π w p 2 ( z ) exp [ 2 r 2 w P 2 ( z ) ] exp [ α z ] ,
w P ( z ) = w P 0 { 1 + [ λ ( z z 0 ) π w P 0 ] 2 } 1 2 ,
0 d ϕ ( r , t ) d t 2 π r d r = 1 τ r 0 { 2 σ ϕ g ( r , t ) 0 l g n ( r , z , t ) d z 2 σ + n + ( r , t ) l s ϕ s ( r , t ) 2 σ 0 [ n 0 n + ( r , t ) ] l s ϕ s ( r , t ) B l s ϕ s 2 ( r , t ) ln ( 1 1 δ e ( t ) ) ϕ e ( r , t ) ( L + ln 1 R ) ϕ ( r , t ) } 2 π r d r ,
d n ( r , z , t ) d t = R in σ c ϕ g ( r , t ) n ( r , z , t ) n ( r , z , t ) τ ,
d n + ( r , t ) d t = c ϕ s ( r , t ) { σ 0 [ n 0 n + ( r , t ) ] σ + n + ( r , t ) } .
δ e ( t ) = cos 2 ( π 2 V ( t ) V λ 4 ) ,
V ( t ) = { 0 t 0 V λ 4 t > 0 } .
n ( r , z , 0 ) = n ( 0 , 0 , 0 ) exp ( 2 r 2 w P 2 ( z ) ) exp ( α z ) ,
n + ( r ) = n + .
n ( 0 , 0 , 0 ) = 2 α P in h ν P π w P 2 ( 0 ) [ f e + 1 ( f e τ ) ] ,
0 d ϕ ( r , t ) d t 2 π r d r = 0 1 t r { 2 σ ϕ g ( r , t ) 0 l g n ( r , z , t ) d z ln ( 1 1 δ e ) ϕ e ( r , t ) ( L + ln 1 R ) ϕ ( r , t ) } 2 π r d r ,
d n ( r , z , t ) d t = R in σ c n ( r , t ) ϕ g ( r , t ) n ( r , z , t ) τ .
P = π w l 2 h ν P 4 σ τ r [ ln ( 1 R ) + L ] ln ( 1 R ) ϕ m ,

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