Abstract

By considering the single-photon absorption and two-photon absorption processes in the GaAs saturable absorber, the coupled rate equations for a diode-pumped passively Q-switched and mode-locked (QML) laser with GaAs coupler under Gaussian approximation are given. These rate equations are solved numerically. The key parameters of an optimally coupled passively QML laser with the shortest pulse-width envelope are determined. These key parameters include the parameters of the gain medium, the saturable absorber, and the resonator, which can minimize the pulse-width of a singly Q-switched envelope. Sample calculations for a diode-pumped passively Q-switched mode-locked c-cut Nd:GdVO4 laser with a GaAs coupler are presented to demonstrate that the shortest pulse-width envelope can be obtained by selecting the optimal small-signal transmission of the saturable absorber and the reflectivity of the output mirror.

© 2011 Optical Society of America

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  1. Y. F. Chen, K. F. Huang, S. W. Tsai, Y. P. Lan, S. C. Wang, and J. Chen, “Simultaneous mode locking in a diode-pumped passively Q-switched Nd:YVO4 laser with a GaAs saturable absorber,” Appl. Opt. 40, 6038–6041 (2001).
    [CrossRef]
  2. D. Y. Shen, D. Y. Tang, and K. Ueda, “Continuous wave and Q-switched mode-locking of a Nd:YVO4 laser with a single crystal GaAs wafer,” Jpn. J. Appl. Phys. 41, L1224–L1227(2002).
    [CrossRef]
  3. K. Yang, S. Zhao, G. Li, M. Li, D. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched Mode-locked c-cut Nd:GdVO4/KTP green laser with a GaAs wafer,” IEEE J. Quantum Electron. 42, 683–689 (2006).
    [CrossRef]
  4. J. Liu, Y. Wang, W. Tian, L. Gao, J. He, and X. Ma, “Q-switched and mode-locked diode-pumped Nd:GdVO4 laser with low temperature GaAs saturable absorber,” Opt. Mater. 28, 970–973 (2006).
    [CrossRef]
  5. S. Pan, L. Xue, X. Fan, H. Huang, and J. He, “Diode-pumped passively Q-switched mode-locked Nd:YLF laser with uncoated GaAs saturable absorber,” Opt. Commun. 272, 178–181 (2007).
    [CrossRef]
  6. R. H. Wang, X. W. Fan, H. X. Wang, H. T. Huang, L. Zhu, and J. L. He, “High-power passively Q-switched mode-locking Nd:GdVO4 laser with LT-InGaAs saturable absorber,” Laser Phys. 19, 1882–1885 (2009).
    [CrossRef]
  7. J. Yang, Q. Fu, J. Liu, and Y. Wang, “Experiments of a diode-pumped Nd:GdVO4/LT-GaAsQ-switched and mode-locked laser,” Laser Phys. Lett. 4, 20–22 (2007).
    [CrossRef]
  8. T. Li, Z. Zhuo, and S. Zhao, “Diode-pumped passively Q-switched mode-locked YVO4/Nd:YVO4 composite crystal laser with LT-GaAs saturable absorber mirror,” Laser Phys. Lett. 5, 267–270 (2008).
    [CrossRef]
  9. J. Kong, D. Y. Tang, S. P. Ng, B. Zhao, L. J. Qin, and X. L. Meng, “Diode-pumped passively mode-locked Nd:GDVO4 laser with a GaAs saturable absorber mirror,” Appl. Phys. B 79, 203–206 (2004).
    [CrossRef]
  10. K. J. Yang, S. Z. Zhao, G. Q. Li, M. Li, D. C. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched mode-locked c-cut Nd:GdVO4 laser with a GaAs coupler,” Opt. Mater. 29, 1153–1158 (2007).
    [CrossRef]
  11. J. J. Degnan, “Optimization of passively Q-switched lasers,” IEEE J. Quantum Electron. 31, 1890–1901 (1995).
    [CrossRef]
  12. P. Li, Q. Wang, X. Zhang, Y. Wang, S. Li, J. He, and X. Lu, “Analysis of a diode-pumped Nd:YVO4 laser passively Q-switched with GaAs,” Opt. Laser Technol. 33, 383–387 (2001).
    [CrossRef]
  13. D. Li, S. Zhao, G. Li, and Kejian Yang, “Optimization of doubly Q-switched lasers with both acousto-optic modulator and a GaAs saturable absorber,” Appl. Opt. 46, 6127–6135 (2007).
    [CrossRef] [PubMed]
  14. D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of the pulse energy of GaAs saturable absorber Q-switched lasers,” Opt. Commun. 282, 944–949 (2009).
    [CrossRef]
  15. D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of GaAs semiconductor saturable absorber Q-switched lasers,” Optik 121, 478–485 (2010).
    [CrossRef]
  16. J. Zhao, S. Zhao, K. Li, F. Kong, and G. Zhang, “Optimization of passively Q-switched and mode-locked laser with Cr4+:YAG saturable absorber,” Opt. Commun. 284, 1648–1651 (2011).
    [CrossRef]
  17. P. Mukhopadhyay, M. Alsous, K. Ranganathan, S. Sharma, P. Gupta, J. George, and T. Nathan, “Analysis of laser-diode end-pumped intracavity frequency-doubled, passively Q-switched and mode-locked Nd:YVO4 laser,” Appl. Phys. B 79, 713–720 (2004).
    [CrossRef]
  18. D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of pulse-width of passively Q-switched lasers by taking into account intracavity laser spatial distribution,” Optik 119, 230–235(2008).
    [CrossRef]

2011

J. Zhao, S. Zhao, K. Li, F. Kong, and G. Zhang, “Optimization of passively Q-switched and mode-locked laser with Cr4+:YAG saturable absorber,” Opt. Commun. 284, 1648–1651 (2011).
[CrossRef]

2010

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of GaAs semiconductor saturable absorber Q-switched lasers,” Optik 121, 478–485 (2010).
[CrossRef]

2009

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of the pulse energy of GaAs saturable absorber Q-switched lasers,” Opt. Commun. 282, 944–949 (2009).
[CrossRef]

R. H. Wang, X. W. Fan, H. X. Wang, H. T. Huang, L. Zhu, and J. L. He, “High-power passively Q-switched mode-locking Nd:GdVO4 laser with LT-InGaAs saturable absorber,” Laser Phys. 19, 1882–1885 (2009).
[CrossRef]

2008

T. Li, Z. Zhuo, and S. Zhao, “Diode-pumped passively Q-switched mode-locked YVO4/Nd:YVO4 composite crystal laser with LT-GaAs saturable absorber mirror,” Laser Phys. Lett. 5, 267–270 (2008).
[CrossRef]

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of pulse-width of passively Q-switched lasers by taking into account intracavity laser spatial distribution,” Optik 119, 230–235(2008).
[CrossRef]

2007

J. Yang, Q. Fu, J. Liu, and Y. Wang, “Experiments of a diode-pumped Nd:GdVO4/LT-GaAsQ-switched and mode-locked laser,” Laser Phys. Lett. 4, 20–22 (2007).
[CrossRef]

D. Li, S. Zhao, G. Li, and Kejian Yang, “Optimization of doubly Q-switched lasers with both acousto-optic modulator and a GaAs saturable absorber,” Appl. Opt. 46, 6127–6135 (2007).
[CrossRef] [PubMed]

K. J. Yang, S. Z. Zhao, G. Q. Li, M. Li, D. C. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched mode-locked c-cut Nd:GdVO4 laser with a GaAs coupler,” Opt. Mater. 29, 1153–1158 (2007).
[CrossRef]

S. Pan, L. Xue, X. Fan, H. Huang, and J. He, “Diode-pumped passively Q-switched mode-locked Nd:YLF laser with uncoated GaAs saturable absorber,” Opt. Commun. 272, 178–181 (2007).
[CrossRef]

2006

K. Yang, S. Zhao, G. Li, M. Li, D. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched Mode-locked c-cut Nd:GdVO4/KTP green laser with a GaAs wafer,” IEEE J. Quantum Electron. 42, 683–689 (2006).
[CrossRef]

J. Liu, Y. Wang, W. Tian, L. Gao, J. He, and X. Ma, “Q-switched and mode-locked diode-pumped Nd:GdVO4 laser with low temperature GaAs saturable absorber,” Opt. Mater. 28, 970–973 (2006).
[CrossRef]

2004

J. Kong, D. Y. Tang, S. P. Ng, B. Zhao, L. J. Qin, and X. L. Meng, “Diode-pumped passively mode-locked Nd:GDVO4 laser with a GaAs saturable absorber mirror,” Appl. Phys. B 79, 203–206 (2004).
[CrossRef]

P. Mukhopadhyay, M. Alsous, K. Ranganathan, S. Sharma, P. Gupta, J. George, and T. Nathan, “Analysis of laser-diode end-pumped intracavity frequency-doubled, passively Q-switched and mode-locked Nd:YVO4 laser,” Appl. Phys. B 79, 713–720 (2004).
[CrossRef]

2002

D. Y. Shen, D. Y. Tang, and K. Ueda, “Continuous wave and Q-switched mode-locking of a Nd:YVO4 laser with a single crystal GaAs wafer,” Jpn. J. Appl. Phys. 41, L1224–L1227(2002).
[CrossRef]

2001

Y. F. Chen, K. F. Huang, S. W. Tsai, Y. P. Lan, S. C. Wang, and J. Chen, “Simultaneous mode locking in a diode-pumped passively Q-switched Nd:YVO4 laser with a GaAs saturable absorber,” Appl. Opt. 40, 6038–6041 (2001).
[CrossRef]

P. Li, Q. Wang, X. Zhang, Y. Wang, S. Li, J. He, and X. Lu, “Analysis of a diode-pumped Nd:YVO4 laser passively Q-switched with GaAs,” Opt. Laser Technol. 33, 383–387 (2001).
[CrossRef]

1995

J. J. Degnan, “Optimization of passively Q-switched lasers,” IEEE J. Quantum Electron. 31, 1890–1901 (1995).
[CrossRef]

Alsous, M.

P. Mukhopadhyay, M. Alsous, K. Ranganathan, S. Sharma, P. Gupta, J. George, and T. Nathan, “Analysis of laser-diode end-pumped intracavity frequency-doubled, passively Q-switched and mode-locked Nd:YVO4 laser,” Appl. Phys. B 79, 713–720 (2004).
[CrossRef]

An, J.

K. J. Yang, S. Z. Zhao, G. Q. Li, M. Li, D. C. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched mode-locked c-cut Nd:GdVO4 laser with a GaAs coupler,” Opt. Mater. 29, 1153–1158 (2007).
[CrossRef]

K. Yang, S. Zhao, G. Li, M. Li, D. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched Mode-locked c-cut Nd:GdVO4/KTP green laser with a GaAs wafer,” IEEE J. Quantum Electron. 42, 683–689 (2006).
[CrossRef]

Chen, J.

Chen, Y. F.

Degnan, J. J.

J. J. Degnan, “Optimization of passively Q-switched lasers,” IEEE J. Quantum Electron. 31, 1890–1901 (1995).
[CrossRef]

Fan, X.

S. Pan, L. Xue, X. Fan, H. Huang, and J. He, “Diode-pumped passively Q-switched mode-locked Nd:YLF laser with uncoated GaAs saturable absorber,” Opt. Commun. 272, 178–181 (2007).
[CrossRef]

Fan, X. W.

R. H. Wang, X. W. Fan, H. X. Wang, H. T. Huang, L. Zhu, and J. L. He, “High-power passively Q-switched mode-locking Nd:GdVO4 laser with LT-InGaAs saturable absorber,” Laser Phys. 19, 1882–1885 (2009).
[CrossRef]

Fu, Q.

J. Yang, Q. Fu, J. Liu, and Y. Wang, “Experiments of a diode-pumped Nd:GdVO4/LT-GaAsQ-switched and mode-locked laser,” Laser Phys. Lett. 4, 20–22 (2007).
[CrossRef]

Gao, L.

J. Liu, Y. Wang, W. Tian, L. Gao, J. He, and X. Ma, “Q-switched and mode-locked diode-pumped Nd:GdVO4 laser with low temperature GaAs saturable absorber,” Opt. Mater. 28, 970–973 (2006).
[CrossRef]

George, J.

P. Mukhopadhyay, M. Alsous, K. Ranganathan, S. Sharma, P. Gupta, J. George, and T. Nathan, “Analysis of laser-diode end-pumped intracavity frequency-doubled, passively Q-switched and mode-locked Nd:YVO4 laser,” Appl. Phys. B 79, 713–720 (2004).
[CrossRef]

Gupta, P.

P. Mukhopadhyay, M. Alsous, K. Ranganathan, S. Sharma, P. Gupta, J. George, and T. Nathan, “Analysis of laser-diode end-pumped intracavity frequency-doubled, passively Q-switched and mode-locked Nd:YVO4 laser,” Appl. Phys. B 79, 713–720 (2004).
[CrossRef]

He, J.

S. Pan, L. Xue, X. Fan, H. Huang, and J. He, “Diode-pumped passively Q-switched mode-locked Nd:YLF laser with uncoated GaAs saturable absorber,” Opt. Commun. 272, 178–181 (2007).
[CrossRef]

J. Liu, Y. Wang, W. Tian, L. Gao, J. He, and X. Ma, “Q-switched and mode-locked diode-pumped Nd:GdVO4 laser with low temperature GaAs saturable absorber,” Opt. Mater. 28, 970–973 (2006).
[CrossRef]

P. Li, Q. Wang, X. Zhang, Y. Wang, S. Li, J. He, and X. Lu, “Analysis of a diode-pumped Nd:YVO4 laser passively Q-switched with GaAs,” Opt. Laser Technol. 33, 383–387 (2001).
[CrossRef]

He, J. L.

R. H. Wang, X. W. Fan, H. X. Wang, H. T. Huang, L. Zhu, and J. L. He, “High-power passively Q-switched mode-locking Nd:GdVO4 laser with LT-InGaAs saturable absorber,” Laser Phys. 19, 1882–1885 (2009).
[CrossRef]

Huang, H.

S. Pan, L. Xue, X. Fan, H. Huang, and J. He, “Diode-pumped passively Q-switched mode-locked Nd:YLF laser with uncoated GaAs saturable absorber,” Opt. Commun. 272, 178–181 (2007).
[CrossRef]

Huang, H. T.

R. H. Wang, X. W. Fan, H. X. Wang, H. T. Huang, L. Zhu, and J. L. He, “High-power passively Q-switched mode-locking Nd:GdVO4 laser with LT-InGaAs saturable absorber,” Laser Phys. 19, 1882–1885 (2009).
[CrossRef]

Huang, K. F.

Kong, F.

J. Zhao, S. Zhao, K. Li, F. Kong, and G. Zhang, “Optimization of passively Q-switched and mode-locked laser with Cr4+:YAG saturable absorber,” Opt. Commun. 284, 1648–1651 (2011).
[CrossRef]

Kong, J.

J. Kong, D. Y. Tang, S. P. Ng, B. Zhao, L. J. Qin, and X. L. Meng, “Diode-pumped passively mode-locked Nd:GDVO4 laser with a GaAs saturable absorber mirror,” Appl. Phys. B 79, 203–206 (2004).
[CrossRef]

Lan, Y. P.

Li, D.

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of GaAs semiconductor saturable absorber Q-switched lasers,” Optik 121, 478–485 (2010).
[CrossRef]

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of the pulse energy of GaAs saturable absorber Q-switched lasers,” Opt. Commun. 282, 944–949 (2009).
[CrossRef]

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of pulse-width of passively Q-switched lasers by taking into account intracavity laser spatial distribution,” Optik 119, 230–235(2008).
[CrossRef]

D. Li, S. Zhao, G. Li, and Kejian Yang, “Optimization of doubly Q-switched lasers with both acousto-optic modulator and a GaAs saturable absorber,” Appl. Opt. 46, 6127–6135 (2007).
[CrossRef] [PubMed]

K. Yang, S. Zhao, G. Li, M. Li, D. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched Mode-locked c-cut Nd:GdVO4/KTP green laser with a GaAs wafer,” IEEE J. Quantum Electron. 42, 683–689 (2006).
[CrossRef]

Li, D. C.

K. J. Yang, S. Z. Zhao, G. Q. Li, M. Li, D. C. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched mode-locked c-cut Nd:GdVO4 laser with a GaAs coupler,” Opt. Mater. 29, 1153–1158 (2007).
[CrossRef]

Li, G.

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of GaAs semiconductor saturable absorber Q-switched lasers,” Optik 121, 478–485 (2010).
[CrossRef]

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of the pulse energy of GaAs saturable absorber Q-switched lasers,” Opt. Commun. 282, 944–949 (2009).
[CrossRef]

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of pulse-width of passively Q-switched lasers by taking into account intracavity laser spatial distribution,” Optik 119, 230–235(2008).
[CrossRef]

D. Li, S. Zhao, G. Li, and Kejian Yang, “Optimization of doubly Q-switched lasers with both acousto-optic modulator and a GaAs saturable absorber,” Appl. Opt. 46, 6127–6135 (2007).
[CrossRef] [PubMed]

K. Yang, S. Zhao, G. Li, M. Li, D. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched Mode-locked c-cut Nd:GdVO4/KTP green laser with a GaAs wafer,” IEEE J. Quantum Electron. 42, 683–689 (2006).
[CrossRef]

Li, G. Q.

K. J. Yang, S. Z. Zhao, G. Q. Li, M. Li, D. C. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched mode-locked c-cut Nd:GdVO4 laser with a GaAs coupler,” Opt. Mater. 29, 1153–1158 (2007).
[CrossRef]

Li, K.

J. Zhao, S. Zhao, K. Li, F. Kong, and G. Zhang, “Optimization of passively Q-switched and mode-locked laser with Cr4+:YAG saturable absorber,” Opt. Commun. 284, 1648–1651 (2011).
[CrossRef]

Li, M.

K. J. Yang, S. Z. Zhao, G. Q. Li, M. Li, D. C. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched mode-locked c-cut Nd:GdVO4 laser with a GaAs coupler,” Opt. Mater. 29, 1153–1158 (2007).
[CrossRef]

K. Yang, S. Zhao, G. Li, M. Li, D. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched Mode-locked c-cut Nd:GdVO4/KTP green laser with a GaAs wafer,” IEEE J. Quantum Electron. 42, 683–689 (2006).
[CrossRef]

Li, P.

P. Li, Q. Wang, X. Zhang, Y. Wang, S. Li, J. He, and X. Lu, “Analysis of a diode-pumped Nd:YVO4 laser passively Q-switched with GaAs,” Opt. Laser Technol. 33, 383–387 (2001).
[CrossRef]

Li, S.

P. Li, Q. Wang, X. Zhang, Y. Wang, S. Li, J. He, and X. Lu, “Analysis of a diode-pumped Nd:YVO4 laser passively Q-switched with GaAs,” Opt. Laser Technol. 33, 383–387 (2001).
[CrossRef]

Li, T.

T. Li, Z. Zhuo, and S. Zhao, “Diode-pumped passively Q-switched mode-locked YVO4/Nd:YVO4 composite crystal laser with LT-GaAs saturable absorber mirror,” Laser Phys. Lett. 5, 267–270 (2008).
[CrossRef]

Liu, J.

J. Yang, Q. Fu, J. Liu, and Y. Wang, “Experiments of a diode-pumped Nd:GdVO4/LT-GaAsQ-switched and mode-locked laser,” Laser Phys. Lett. 4, 20–22 (2007).
[CrossRef]

J. Liu, Y. Wang, W. Tian, L. Gao, J. He, and X. Ma, “Q-switched and mode-locked diode-pumped Nd:GdVO4 laser with low temperature GaAs saturable absorber,” Opt. Mater. 28, 970–973 (2006).
[CrossRef]

Lu, X.

P. Li, Q. Wang, X. Zhang, Y. Wang, S. Li, J. He, and X. Lu, “Analysis of a diode-pumped Nd:YVO4 laser passively Q-switched with GaAs,” Opt. Laser Technol. 33, 383–387 (2001).
[CrossRef]

Ma, X.

J. Liu, Y. Wang, W. Tian, L. Gao, J. He, and X. Ma, “Q-switched and mode-locked diode-pumped Nd:GdVO4 laser with low temperature GaAs saturable absorber,” Opt. Mater. 28, 970–973 (2006).
[CrossRef]

Meng, X. L.

J. Kong, D. Y. Tang, S. P. Ng, B. Zhao, L. J. Qin, and X. L. Meng, “Diode-pumped passively mode-locked Nd:GDVO4 laser with a GaAs saturable absorber mirror,” Appl. Phys. B 79, 203–206 (2004).
[CrossRef]

Mukhopadhyay, P.

P. Mukhopadhyay, M. Alsous, K. Ranganathan, S. Sharma, P. Gupta, J. George, and T. Nathan, “Analysis of laser-diode end-pumped intracavity frequency-doubled, passively Q-switched and mode-locked Nd:YVO4 laser,” Appl. Phys. B 79, 713–720 (2004).
[CrossRef]

Nathan, T.

P. Mukhopadhyay, M. Alsous, K. Ranganathan, S. Sharma, P. Gupta, J. George, and T. Nathan, “Analysis of laser-diode end-pumped intracavity frequency-doubled, passively Q-switched and mode-locked Nd:YVO4 laser,” Appl. Phys. B 79, 713–720 (2004).
[CrossRef]

Ng, S. P.

J. Kong, D. Y. Tang, S. P. Ng, B. Zhao, L. J. Qin, and X. L. Meng, “Diode-pumped passively mode-locked Nd:GDVO4 laser with a GaAs saturable absorber mirror,” Appl. Phys. B 79, 203–206 (2004).
[CrossRef]

Pan, S.

S. Pan, L. Xue, X. Fan, H. Huang, and J. He, “Diode-pumped passively Q-switched mode-locked Nd:YLF laser with uncoated GaAs saturable absorber,” Opt. Commun. 272, 178–181 (2007).
[CrossRef]

Qin, L. J.

J. Kong, D. Y. Tang, S. P. Ng, B. Zhao, L. J. Qin, and X. L. Meng, “Diode-pumped passively mode-locked Nd:GDVO4 laser with a GaAs saturable absorber mirror,” Appl. Phys. B 79, 203–206 (2004).
[CrossRef]

Ranganathan, K.

P. Mukhopadhyay, M. Alsous, K. Ranganathan, S. Sharma, P. Gupta, J. George, and T. Nathan, “Analysis of laser-diode end-pumped intracavity frequency-doubled, passively Q-switched and mode-locked Nd:YVO4 laser,” Appl. Phys. B 79, 713–720 (2004).
[CrossRef]

Sharma, S.

P. Mukhopadhyay, M. Alsous, K. Ranganathan, S. Sharma, P. Gupta, J. George, and T. Nathan, “Analysis of laser-diode end-pumped intracavity frequency-doubled, passively Q-switched and mode-locked Nd:YVO4 laser,” Appl. Phys. B 79, 713–720 (2004).
[CrossRef]

Shen, D. Y.

D. Y. Shen, D. Y. Tang, and K. Ueda, “Continuous wave and Q-switched mode-locking of a Nd:YVO4 laser with a single crystal GaAs wafer,” Jpn. J. Appl. Phys. 41, L1224–L1227(2002).
[CrossRef]

Tang, D. Y.

J. Kong, D. Y. Tang, S. P. Ng, B. Zhao, L. J. Qin, and X. L. Meng, “Diode-pumped passively mode-locked Nd:GDVO4 laser with a GaAs saturable absorber mirror,” Appl. Phys. B 79, 203–206 (2004).
[CrossRef]

D. Y. Shen, D. Y. Tang, and K. Ueda, “Continuous wave and Q-switched mode-locking of a Nd:YVO4 laser with a single crystal GaAs wafer,” Jpn. J. Appl. Phys. 41, L1224–L1227(2002).
[CrossRef]

Tian, W.

J. Liu, Y. Wang, W. Tian, L. Gao, J. He, and X. Ma, “Q-switched and mode-locked diode-pumped Nd:GdVO4 laser with low temperature GaAs saturable absorber,” Opt. Mater. 28, 970–973 (2006).
[CrossRef]

Tsai, S. W.

Ueda, K.

D. Y. Shen, D. Y. Tang, and K. Ueda, “Continuous wave and Q-switched mode-locking of a Nd:YVO4 laser with a single crystal GaAs wafer,” Jpn. J. Appl. Phys. 41, L1224–L1227(2002).
[CrossRef]

Wang, H. X.

R. H. Wang, X. W. Fan, H. X. Wang, H. T. Huang, L. Zhu, and J. L. He, “High-power passively Q-switched mode-locking Nd:GdVO4 laser with LT-InGaAs saturable absorber,” Laser Phys. 19, 1882–1885 (2009).
[CrossRef]

Wang, J.

K. J. Yang, S. Z. Zhao, G. Q. Li, M. Li, D. C. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched mode-locked c-cut Nd:GdVO4 laser with a GaAs coupler,” Opt. Mater. 29, 1153–1158 (2007).
[CrossRef]

K. Yang, S. Zhao, G. Li, M. Li, D. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched Mode-locked c-cut Nd:GdVO4/KTP green laser with a GaAs wafer,” IEEE J. Quantum Electron. 42, 683–689 (2006).
[CrossRef]

Wang, Q.

P. Li, Q. Wang, X. Zhang, Y. Wang, S. Li, J. He, and X. Lu, “Analysis of a diode-pumped Nd:YVO4 laser passively Q-switched with GaAs,” Opt. Laser Technol. 33, 383–387 (2001).
[CrossRef]

Wang, R. H.

R. H. Wang, X. W. Fan, H. X. Wang, H. T. Huang, L. Zhu, and J. L. He, “High-power passively Q-switched mode-locking Nd:GdVO4 laser with LT-InGaAs saturable absorber,” Laser Phys. 19, 1882–1885 (2009).
[CrossRef]

Wang, S. C.

Wang, Y.

J. Yang, Q. Fu, J. Liu, and Y. Wang, “Experiments of a diode-pumped Nd:GdVO4/LT-GaAsQ-switched and mode-locked laser,” Laser Phys. Lett. 4, 20–22 (2007).
[CrossRef]

J. Liu, Y. Wang, W. Tian, L. Gao, J. He, and X. Ma, “Q-switched and mode-locked diode-pumped Nd:GdVO4 laser with low temperature GaAs saturable absorber,” Opt. Mater. 28, 970–973 (2006).
[CrossRef]

P. Li, Q. Wang, X. Zhang, Y. Wang, S. Li, J. He, and X. Lu, “Analysis of a diode-pumped Nd:YVO4 laser passively Q-switched with GaAs,” Opt. Laser Technol. 33, 383–387 (2001).
[CrossRef]

Xue, L.

S. Pan, L. Xue, X. Fan, H. Huang, and J. He, “Diode-pumped passively Q-switched mode-locked Nd:YLF laser with uncoated GaAs saturable absorber,” Opt. Commun. 272, 178–181 (2007).
[CrossRef]

Yang, J.

J. Yang, Q. Fu, J. Liu, and Y. Wang, “Experiments of a diode-pumped Nd:GdVO4/LT-GaAsQ-switched and mode-locked laser,” Laser Phys. Lett. 4, 20–22 (2007).
[CrossRef]

Yang, K.

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of GaAs semiconductor saturable absorber Q-switched lasers,” Optik 121, 478–485 (2010).
[CrossRef]

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of the pulse energy of GaAs saturable absorber Q-switched lasers,” Opt. Commun. 282, 944–949 (2009).
[CrossRef]

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of pulse-width of passively Q-switched lasers by taking into account intracavity laser spatial distribution,” Optik 119, 230–235(2008).
[CrossRef]

K. Yang, S. Zhao, G. Li, M. Li, D. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched Mode-locked c-cut Nd:GdVO4/KTP green laser with a GaAs wafer,” IEEE J. Quantum Electron. 42, 683–689 (2006).
[CrossRef]

Yang, K. J.

K. J. Yang, S. Z. Zhao, G. Q. Li, M. Li, D. C. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched mode-locked c-cut Nd:GdVO4 laser with a GaAs coupler,” Opt. Mater. 29, 1153–1158 (2007).
[CrossRef]

Yang, Kejian

Zhang, G.

J. Zhao, S. Zhao, K. Li, F. Kong, and G. Zhang, “Optimization of passively Q-switched and mode-locked laser with Cr4+:YAG saturable absorber,” Opt. Commun. 284, 1648–1651 (2011).
[CrossRef]

Zhang, X.

P. Li, Q. Wang, X. Zhang, Y. Wang, S. Li, J. He, and X. Lu, “Analysis of a diode-pumped Nd:YVO4 laser passively Q-switched with GaAs,” Opt. Laser Technol. 33, 383–387 (2001).
[CrossRef]

Zhao, B.

J. Kong, D. Y. Tang, S. P. Ng, B. Zhao, L. J. Qin, and X. L. Meng, “Diode-pumped passively mode-locked Nd:GDVO4 laser with a GaAs saturable absorber mirror,” Appl. Phys. B 79, 203–206 (2004).
[CrossRef]

Zhao, J.

J. Zhao, S. Zhao, K. Li, F. Kong, and G. Zhang, “Optimization of passively Q-switched and mode-locked laser with Cr4+:YAG saturable absorber,” Opt. Commun. 284, 1648–1651 (2011).
[CrossRef]

Zhao, S.

J. Zhao, S. Zhao, K. Li, F. Kong, and G. Zhang, “Optimization of passively Q-switched and mode-locked laser with Cr4+:YAG saturable absorber,” Opt. Commun. 284, 1648–1651 (2011).
[CrossRef]

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of GaAs semiconductor saturable absorber Q-switched lasers,” Optik 121, 478–485 (2010).
[CrossRef]

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of the pulse energy of GaAs saturable absorber Q-switched lasers,” Opt. Commun. 282, 944–949 (2009).
[CrossRef]

T. Li, Z. Zhuo, and S. Zhao, “Diode-pumped passively Q-switched mode-locked YVO4/Nd:YVO4 composite crystal laser with LT-GaAs saturable absorber mirror,” Laser Phys. Lett. 5, 267–270 (2008).
[CrossRef]

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of pulse-width of passively Q-switched lasers by taking into account intracavity laser spatial distribution,” Optik 119, 230–235(2008).
[CrossRef]

D. Li, S. Zhao, G. Li, and Kejian Yang, “Optimization of doubly Q-switched lasers with both acousto-optic modulator and a GaAs saturable absorber,” Appl. Opt. 46, 6127–6135 (2007).
[CrossRef] [PubMed]

K. Yang, S. Zhao, G. Li, M. Li, D. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched Mode-locked c-cut Nd:GdVO4/KTP green laser with a GaAs wafer,” IEEE J. Quantum Electron. 42, 683–689 (2006).
[CrossRef]

Zhao, S. Z.

K. J. Yang, S. Z. Zhao, G. Q. Li, M. Li, D. C. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched mode-locked c-cut Nd:GdVO4 laser with a GaAs coupler,” Opt. Mater. 29, 1153–1158 (2007).
[CrossRef]

Zhu, L.

R. H. Wang, X. W. Fan, H. X. Wang, H. T. Huang, L. Zhu, and J. L. He, “High-power passively Q-switched mode-locking Nd:GdVO4 laser with LT-InGaAs saturable absorber,” Laser Phys. 19, 1882–1885 (2009).
[CrossRef]

Zhuo, Z.

T. Li, Z. Zhuo, and S. Zhao, “Diode-pumped passively Q-switched mode-locked YVO4/Nd:YVO4 composite crystal laser with LT-GaAs saturable absorber mirror,” Laser Phys. Lett. 5, 267–270 (2008).
[CrossRef]

Appl. Opt.

Appl. Phys. B

P. Mukhopadhyay, M. Alsous, K. Ranganathan, S. Sharma, P. Gupta, J. George, and T. Nathan, “Analysis of laser-diode end-pumped intracavity frequency-doubled, passively Q-switched and mode-locked Nd:YVO4 laser,” Appl. Phys. B 79, 713–720 (2004).
[CrossRef]

J. Kong, D. Y. Tang, S. P. Ng, B. Zhao, L. J. Qin, and X. L. Meng, “Diode-pumped passively mode-locked Nd:GDVO4 laser with a GaAs saturable absorber mirror,” Appl. Phys. B 79, 203–206 (2004).
[CrossRef]

IEEE J. Quantum Electron.

K. Yang, S. Zhao, G. Li, M. Li, D. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched Mode-locked c-cut Nd:GdVO4/KTP green laser with a GaAs wafer,” IEEE J. Quantum Electron. 42, 683–689 (2006).
[CrossRef]

J. J. Degnan, “Optimization of passively Q-switched lasers,” IEEE J. Quantum Electron. 31, 1890–1901 (1995).
[CrossRef]

Jpn. J. Appl. Phys.

D. Y. Shen, D. Y. Tang, and K. Ueda, “Continuous wave and Q-switched mode-locking of a Nd:YVO4 laser with a single crystal GaAs wafer,” Jpn. J. Appl. Phys. 41, L1224–L1227(2002).
[CrossRef]

Laser Phys.

R. H. Wang, X. W. Fan, H. X. Wang, H. T. Huang, L. Zhu, and J. L. He, “High-power passively Q-switched mode-locking Nd:GdVO4 laser with LT-InGaAs saturable absorber,” Laser Phys. 19, 1882–1885 (2009).
[CrossRef]

Laser Phys. Lett.

J. Yang, Q. Fu, J. Liu, and Y. Wang, “Experiments of a diode-pumped Nd:GdVO4/LT-GaAsQ-switched and mode-locked laser,” Laser Phys. Lett. 4, 20–22 (2007).
[CrossRef]

T. Li, Z. Zhuo, and S. Zhao, “Diode-pumped passively Q-switched mode-locked YVO4/Nd:YVO4 composite crystal laser with LT-GaAs saturable absorber mirror,” Laser Phys. Lett. 5, 267–270 (2008).
[CrossRef]

Opt. Commun.

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of the pulse energy of GaAs saturable absorber Q-switched lasers,” Opt. Commun. 282, 944–949 (2009).
[CrossRef]

S. Pan, L. Xue, X. Fan, H. Huang, and J. He, “Diode-pumped passively Q-switched mode-locked Nd:YLF laser with uncoated GaAs saturable absorber,” Opt. Commun. 272, 178–181 (2007).
[CrossRef]

J. Zhao, S. Zhao, K. Li, F. Kong, and G. Zhang, “Optimization of passively Q-switched and mode-locked laser with Cr4+:YAG saturable absorber,” Opt. Commun. 284, 1648–1651 (2011).
[CrossRef]

Opt. Laser Technol.

P. Li, Q. Wang, X. Zhang, Y. Wang, S. Li, J. He, and X. Lu, “Analysis of a diode-pumped Nd:YVO4 laser passively Q-switched with GaAs,” Opt. Laser Technol. 33, 383–387 (2001).
[CrossRef]

Opt. Mater.

K. J. Yang, S. Z. Zhao, G. Q. Li, M. Li, D. C. Li, J. Wang, and J. An, “Diode-pumped passively Q-switched mode-locked c-cut Nd:GdVO4 laser with a GaAs coupler,” Opt. Mater. 29, 1153–1158 (2007).
[CrossRef]

J. Liu, Y. Wang, W. Tian, L. Gao, J. He, and X. Ma, “Q-switched and mode-locked diode-pumped Nd:GdVO4 laser with low temperature GaAs saturable absorber,” Opt. Mater. 28, 970–973 (2006).
[CrossRef]

Optik

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of GaAs semiconductor saturable absorber Q-switched lasers,” Optik 121, 478–485 (2010).
[CrossRef]

D. Li, S. Zhao, G. Li, and K. Yang, “Optimization of pulse-width of passively Q-switched lasers by taking into account intracavity laser spatial distribution,” Optik 119, 230–235(2008).
[CrossRef]

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Figures (9)

Fig. 1
Fig. 1

Dependence of the output pulse-width on the reflectivity R of the output mirror at P in = 4.45 W .

Fig. 2
Fig. 2

Dependence of the output pulse-width on the small-signal transmission T 0 of the GaAs at P in = 4.45 W .

Fig. 3
Fig. 3

The calculated temporal shape of a single Q-switched pulse at the pump power of 4.45 W .

Fig. 4
Fig. 4

(a) Dependence of the minimal output pulse-width on w l / w p . (b)  R opt and ( T 0 ) opt versus w l / w p .

Fig. 5
Fig. 5

(a) Dependence of the minimal output pulse-width on σ. (b)  R opt and ( T 0 ) opt versus σ.

Fig. 6
Fig. 6

Calculated dependence of the minimal output pulse-width on α in the case of (a)  w l / w p = 1.16 , (b)  w l / w p = 0.9 , (c)  w l / w p = 0.75 .

Fig. 7
Fig. 7

The experimental setup.

Fig. 8
Fig. 8

Oscilloscope traces of pulse trains of Q-switched pulses.

Fig. 9
Fig. 9

Oscilloscope traces of a typical Q-switched and mode-locked (QML) pulse envelop at the incident pump power of 4.45 W .

Tables (3)

Tables Icon

Table 1 Parameters of the Theoretical Calculation

Tables Icon

Table 2 Pulse-Width of a Passively QML c-cut Nd : GdVO 4 Laser with Different Output Mirror Reflectivity

Tables Icon

Table 3 Pulse-Width of a Passively QML c-Cut Nd : GdVO 4 Laser with Different T 0 of GaAs Saturable Absorber

Equations (12)

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

ϕ ( r , t ) = k = 0 Φ k f ( t t k ) exp ( 2 r 2 w l 2 ) = ϕ ( 0 , t ) exp ( 2 r 2 w l 2 ) ,
f ( t ) = 1 2 σ c τ p sech 2 ( t τ p ) ,
ϕ k ( r , t ) = Φ k f ( t ) exp ( 2 r 2 w l 2 ) .
Φ k = Φ k 1 exp { 2 π w l 2 0 [ 2 σ n ( r , t k ) l w l 2 w G 2 exp ( 2 r 2 w G 2 ) 2 σ + n + ( r , t k ) l A w l 2 w A 2 exp ( 2 r 2 w A 2 ) 2 σ 0 [ n 0 n + ( r , t k ) ] l A w l 2 w A 2 exp ( 2 r 2 w A 2 ) B l A w l 4 w A 4 exp ( 4 r 2 w A 2 ) Φ k [ L + ln ( 1 R ) ] exp ( 2 r 2 w l 2 ) ] 2 π r d r }
d n ( r , t ) d t = R in ( r ) σ c n ( r , t ) ϕ G ( r , t ) n ( r , t ) τ a
d n + ( r , t ) d t = σ 0 c [ n 0 n + ( r , t ) ] ϕ A ( r , t ) σ + c n + ( r , t ) ϕ A ( r , t ) ,
ϕ i ( r , t ) = ( w l 2 / w i 2 ) ϕ ( 0 , t ) exp ( 2 r 2 / w i 2 ) ( i = G , A ) ,
n ( r , t k ) = exp ( t k τ ) m = 0 k 1 exp [ w l 2 w G 2 exp ( 2 r 2 w G 2 ) Φ m ] × { R in ( r ) exp ( t k τ a ) 0 t k m = 0 k 1 exp [ w l 2 w G 2 exp ( 2 r 2 w G 2 ) Φ m ] d t + n i exp ( 2 r 2 w p 2 ) }
n + ( r , t k ) = [ m = 0 k 1 exp [ w l 2 w A 2 exp ( 2 r 2 w A 2 ) Φ m ] ] α × { 0 t k [ m = 0 k 1 exp [ w l 2 w A 2 exp ( 2 r 2 w A 2 ) Φ m ] ] α × σ 0 n 0 2 σ τ p × m = 0 k 1 Φ m w l 2 w A 2 exp ( 2 r 2 w A 2 ) sech 2 ( t m t r τ p ) d t + n 0 } ,
P ( t ) = 1 A ( ln 1 R ) 0 [ c h ν A ϕ ( r , t ) 2 ] 2 π r d r ,
P ( t ) = h v A 4 σ τ p ( ln 1 R ) k = 0 Φ k sech 2 ( t t k τ p ) .
E = h v A 4 σ ( ln 1 R ) k = 0 Φ k .

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