Abstract

We demonstrated nonlinear mirror mode-locking of a diode-pumped Nd:GdVO4 laser by using a 10 mm long KTP crystal. The stable CW mode locking can be reached with the relative low threshold pump power as low as 2.3W. The highest output power of 2.65W at the 10 W pump powers are generated with the 121-MHz repetition rate of pulses. It confirms the excellent laser performance of the Nd:GdVO4 for high-peak power of the pulse operation.

© 2005 Optical Society of America

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References

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Appl. Phys. B (1)

K. A. Stankov, �??A mirror with an intensity-dependent reflection coefficient,�?? Appl. Phys. B 45, 191 (1988).
[CrossRef]

Appl. Phys. B-Laser and Optics (1)

Y. F. Chen, S. W. Tsai, S. C. Wang, �??High-power diode-pumped nonlinear mirror mode-locked Nd:YVO4 laser with periodically-poled KTP,�?? Appl. Phys. B-Laser and Optics 72, 395 (2001).
[CrossRef]

Appl. Phys. B-Lasers and Optics (2)

J. Kong, D. Y. Tang, S. P. Ng, B. Zhao, L. J. Qin, X. L. Meng, �??Diode-pumped passively mode-locked Nd :GdVO4 laser with a GaAs saturable absorber mirror,�?? Appl. Phys. B-Lasers and Optics 79, 203 (2004).
[CrossRef]

S. Zhang, E Wu, H. Pan, and H. Zeng, �??Q-switched mode-locking with Cr4+:YAG in a diode pumped Nd :GdVO4 laser,�?? Appl. Phys. B-Lasers and Optics 78, 335 (2004).
[CrossRef]

Appl. Phys. Lett. (2)

G. Cerullo, M. B. Danailov, S. De Silvestri, P. Laporta, V. Magni, D. Segala, and S. Taccheo, �??A diode-pumped nonlinear mirror mode-locked Nd:YAG laser,�?? Appl. Phys. Lett. 65, 2392 (1994).
[CrossRef]

A. A. Mani, Ph. Hollander, P. A. Thiry, and A. Peremans, �??All-solid-state 12 ps actively passively mode-locked pulsed Nd:YAG laser using a nonlinear mirror,�?? Appl. Phys. Lett. 75, 3066 (1999).
[CrossRef]

IEEE J. Quantum. Electron. (1)

S. Zhang, E Wu, H. Pan, and H. Zeng, �??Passive mode locking in a diode-pumped Nd:GdVO4 laser with a semiconductor saturable absorber mirror,�?? IEEE J. Quantum. Electron. 40, 505 (2004).
[CrossRef]

IQEC/CLEO-PR 2005 (1)

J.-H. Lin, W.-H. Yang, and W.-F. Hsieh, �??Nonlinear mirror mode-locked Nd:GdVO4 laser with splitting double pulses�??, presented at the International Conference on Quantum Electronics 2005 and the Pacific Rim Conference on Lasers and Electro-Optics 2005 (IQEC/CLEO-PR 2005), Tokyo, 11-15, July (2005).

J. Opt. Soc. Am. B (2)

Opt. Commun. (2)

H. D. Jiang, H. J. Zhang, J. Y. Wang, H. R. Xia, X. B. Hu, B. Teng, C. Q. Zhang, �??Optical and laser properties of Nd:GdVO4 crystal,�?? Opt. Commun. 198, 447 (2001).
[CrossRef]

P. K. Datta, S. Mukhopadhyay, and A. Agnesi, �??Stability regime study of a nonlinear mirror mode-locked laser,�?? Opt. Commun. 230, 411 (2004).
[CrossRef]

Opt. Express (3)

Opt. Lett. (2)

Other (1)

W. Koechner, Solid-state laser engineering, fifth ed., (Springer, Berlin, 1999) Chap. 10.

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Figures (4)

Fig. 1.
Fig. 1.

Schematic diagram of the diode-pumped nonlinear mirror mode-locked Nd:GdVO4 laser.. M1 and M2 are folding mirrors and OC is the output coupler.

Fig. 2.
Fig. 2.

The average output power versus the pump power with (right) and without (left) the KTP insertion. The inset shows the output power (left axis) and the calculated intracavity peak power Pω (right axis) for the laser with the KTP at the low pump power.

Fig. 3.
Fig. 3.

CML pulse trains on nanosecond-scale with the repetition rate of 121 MHz. The insets show QML pulse trains (left inset) and the RF spectrum (right inset).

Fig. 4.
Fig. 4.

Autocorrelation curve (sech2 fit) of the pulse duration and the corresponding optical spectrum (inset) showing the center wavelength

Equations (3)

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P ω P c = ( P L P A Δ R max ) 1 / 2
κ = ( d L nL / d P ω ) P ω = 0 = ( ρ / P ω ) R ω [ R ω + 1 + 2 cos ( Δ k 1 Δϕ ) ) ] ,
ρ ( P ω ) = P 2 ω P ω = l 2 ( 2 η 3 ω 0 2 d eff 2 ) ( P ω A ) sin 2 ( Δ kl / 2 ) ( Δ kl / 2 ) 2 ,

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