Abstract

We report a high-power diode-end-pumped Q-switched Nd:GdVO4 red laser through intracavity frequency-doubling with a type-I critical phase-matched LBO crystal. The maximum average output power at 671 nm was obtained to be 6 W at the repetition frequency of 47 kHz, with the corresponding optical conversion efficiency of 12.8% and the pulse width of about 97 ns. At the average output power around 5 W, the power stability was better than 5.8% for one hour.

© 2005 Optical Society of America

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References

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  1. Z. Sun et al, �??Generation of 11.5 W coherent red-light by intra-cavity frequency-doubling of a side-pumped Nd:YAG laser in a 4-cm LBO,�?? Opt. Commun. 241, 167-172 (2004).
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    [CrossRef]
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    [CrossRef]
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  12. J. Liu, Z. Shao, H. Zhang, X. Meng et al, �??Diode-laser-array end-pumped intracavity frequency-doubled 3.6 W CW Nd:GdVO4/KTP green laser,�?? Opt. Commun. 173, 311-314 (2000).
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  13. C. Du, Z. Wang, J. Liu, X. Xu, B. Teng, K. Fu, J. Wang, Y. Liu, Z. Shao, �??Efficient intracavity second-harmonic generation at 1.06 µm in BiB3O6 (BIBO) crystal,�?? Appl. Phys. B 73, 215�??217 (2001).
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  14. C. Du, Z. Wang, J. Liu, X. Xu, K. Fu, G. Xu, J. Wang, Z. Shao, �??Investigation of intracavity third-harmonic generation at 1.06 µm in YCa4O(BO3)3 crystals,�?? Appl. Phys. B 74, 125�??127 (2002).
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Appl. Phys. B (5)

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

T. Jensen, V.G. Ostroumov, J.P. Meyn, G. Huber, A.I. Zagumennyi, I.A. Shcherbakov, �??Spectrosopic characterization and laser performance of diode-laser-pumped Nd:GdVO4,�?? Appl. Phys. B 58, 373-379 (1994).
[CrossRef]

C. Du, S. Ruan, H. Zhang, Y. Yu, F. Zeng, J. Wang, M. Jiang, �??A 13.3-W laser-diode-array end-pumped Nd:GdVO4 continuous-wave laser at 1.34 µm,�?? Appl. Phys. B 80, 45-48 (2005).
[CrossRef]

C. Du, Z. Wang, J. Liu, X. Xu, B. Teng, K. Fu, J. Wang, Y. Liu, Z. Shao, �??Efficient intracavity second-harmonic generation at 1.06 µm in BiB3O6 (BIBO) crystal,�?? Appl. Phys. B 73, 215�??217 (2001).
[CrossRef]

C. Du, Z. Wang, J. Liu, X. Xu, K. Fu, G. Xu, J. Wang, Z. Shao, �??Investigation of intracavity third-harmonic generation at 1.06 µm in YCa4O(BO3)3 crystals,�?? Appl. Phys. B 74, 125�??127 (2002).
[CrossRef]

Cryst. Res. Technol. (1)

L.J. Qin, X.L. Meng, H.Y. Shen, L. Zhu, B.C. Xu, L.X. Huang, H.R. Xia, P. Zhao, G. Zheng, �??Thermal conductivity and refractive indices of Nd:GdVO4 crystals,�?? Cryst. Res. Technol. 38, 793-797 (2003).
[CrossRef]

IEEE J. Quantum Electron. (1)

Y.F. Chen, �??Design criteria for concentration optimization in scaling diode end-pumped lasers to high-powers: influence of thermal fracture,�?? IEEE J. Quantum Electron. 35, 234-239 (1999).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

C. Du, H. Zhang, S. Ruan, G. Xu, D. Hu, Z. Wang, X. Xu, J. Wang, X. Xu, Z. Shao, M. Jiang, �??Laser-diode-array end-pumped 8.2-W CW Nd:GdVO4 laser at 1.34 µm,�?? IEEE Photon. Technol. Lett. 16, 386-388 (2004).
[CrossRef]

J. Cryst. Growth (2)

H. Zhang, C. Du, J. Wang, X. Hu et al, �??Laser performance of Nd:GdVO4 crystal at 1.34 µm and intracavity double red laser,�?? J. Cryst. Growth 249, 492-496 (2003).
[CrossRef]

H. Zhang, X. Meng, J. Liu, L. Zhu, C. Wang, Z. Shao, J. Wang, Y. Liu, �??Growth of lowly Nd doped GdVO4 single crystal and its laser properties,�?? J. Cryst. Growth 216, 367-371 (2000).
[CrossRef]

Opt. Commun. (2)

Z. Sun et al, �??Generation of 11.5 W coherent red-light by intra-cavity frequency-doubling of a side-pumped Nd:YAG laser in a 4-cm LBO,�?? Opt. Commun. 241, 167-172 (2004).
[CrossRef]

J. Liu, Z. Shao, H. Zhang, X. Meng et al, �??Diode-laser-array end-pumped intracavity frequency-doubled 3.6 W CW Nd:GdVO4/KTP green laser,�?? Opt. Commun. 173, 311-314 (2000).
[CrossRef]

Opt. Express (1)

Opt. Lett. (1)

Quantum Electron. (1)

P.A. Studenikin, A.I. Zagumennyi, Y.D. Zavartsev, P.A. Popov, I.A. Shcherbakov, �??GdVO4 as a new medium for solid-state lasers: some optical and thermal properties of crystals doped with Nd3+, Tm3+, and Er3+ ions,�?? Quantum Electron. 25, 1162-1165 (1995).
[CrossRef]

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Figures (6)

Fig. 1 .
Fig. 1 .

Schematic diagram of the experimental laser setup

Fig. 2.
Fig. 2.

The average output power of 671 nm light versus incident pump power

Fig. 3.
Fig. 3.

The temporal pulse profile of red light at the incident pump power of 46.7 W.

Fig. 4.
Fig. 4.

The far-field intensity distribution of the red beam at the maximum output power.

Fig. 5.
Fig. 5.

The beam quality parameter M2 of the red beam at various output powers.

Fig. 6.
Fig. 6.

The output power and pulse width of 671 nm light versus repetition frequency.

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