Abstract

We report on a cavity-dumped Q-switched TEM00 Nd:YVO4 oscillator offering a unique combination of high power, constant short pulse duration, and high repetition rate, suppressing the gain dependence of pulse duration in classical Q-switched oscillators. Its performance is compared with that of the same oscillator operated in a classical Q-switched regime, demonstrating the much higher peak powers achievable with this technique, especially at high repetition rates. Up to 31W of 532nm green light was generated by frequency doubling in a noncritical phase matched LBO crystal, corresponding to 70% conversion efficiency.

© 2006 Optical Society of America

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References

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  1. Y.-F. Chen, Y. P. Lan, and S. C. Wang, Opt. Lett. 25, 1016 (2000).
    [CrossRef]
  2. N. Hodgson, D. Dudley, L. Gruber, W. Jordan, and H. Hoffman, in Conference on Lasers and Electro-Optics, Vol. 56 of OSA Trends in Optics and Photonics Series (Optical Society of America, 2001), pp. 389-390.
  3. A. A. Vuylsteke, J. Appl. Phys. 34, 1615 (1963).
    [CrossRef]
  4. W. Koechner, Solid-State Laser Engineering (Springer, 1999), Chap. 8.6.
  5. L. McDonagh, R. Knappe, A. Nebel, and R. Wallenstein, "60 W high efficiency TEM00Nd:YVO4 oscillator pumped at 888 nm," Opt. Lett. 31, 3297 (2006).
    [CrossRef] [PubMed]

2006

2000

1963

A. A. Vuylsteke, J. Appl. Phys. 34, 1615 (1963).
[CrossRef]

Chen, Y.-F.

Dudley, D.

N. Hodgson, D. Dudley, L. Gruber, W. Jordan, and H. Hoffman, in Conference on Lasers and Electro-Optics, Vol. 56 of OSA Trends in Optics and Photonics Series (Optical Society of America, 2001), pp. 389-390.

Gruber, L.

N. Hodgson, D. Dudley, L. Gruber, W. Jordan, and H. Hoffman, in Conference on Lasers and Electro-Optics, Vol. 56 of OSA Trends in Optics and Photonics Series (Optical Society of America, 2001), pp. 389-390.

Hodgson, N.

N. Hodgson, D. Dudley, L. Gruber, W. Jordan, and H. Hoffman, in Conference on Lasers and Electro-Optics, Vol. 56 of OSA Trends in Optics and Photonics Series (Optical Society of America, 2001), pp. 389-390.

Hoffman, H.

N. Hodgson, D. Dudley, L. Gruber, W. Jordan, and H. Hoffman, in Conference on Lasers and Electro-Optics, Vol. 56 of OSA Trends in Optics and Photonics Series (Optical Society of America, 2001), pp. 389-390.

Jordan, W.

N. Hodgson, D. Dudley, L. Gruber, W. Jordan, and H. Hoffman, in Conference on Lasers and Electro-Optics, Vol. 56 of OSA Trends in Optics and Photonics Series (Optical Society of America, 2001), pp. 389-390.

Knappe, R.

Koechner, W.

W. Koechner, Solid-State Laser Engineering (Springer, 1999), Chap. 8.6.

Lan, Y. P.

McDonagh, L.

Nebel, A.

Vuylsteke, A. A.

A. A. Vuylsteke, J. Appl. Phys. 34, 1615 (1963).
[CrossRef]

Wallenstein, R.

Wang, S. C.

J. Appl. Phys.

A. A. Vuylsteke, J. Appl. Phys. 34, 1615 (1963).
[CrossRef]

Opt. Lett.

Other

W. Koechner, Solid-State Laser Engineering (Springer, 1999), Chap. 8.6.

N. Hodgson, D. Dudley, L. Gruber, W. Jordan, and H. Hoffman, in Conference on Lasers and Electro-Optics, Vol. 56 of OSA Trends in Optics and Photonics Series (Optical Society of America, 2001), pp. 389-390.

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Figures (5)

Fig. 1
Fig. 1

Evolution of the laser cavity parameters during the cavity-closed time followed by the dumping event.

Fig. 2
Fig. 2

Oscillator setup: M 1 is HR at 1064 nm , M 2 is the output coupler in Q-switched operation and is highly transmissive in cavity-dumped mode. r = + 1000 mm convex pump mirrors M 3 and M 4 are HR at 1064 nm and high transmission at 888 nm . The fiber end is imaged in the center of the crystal with lenses L 1 and L 2 , while pump backreflection is achieved by collimating lens L 3 and HR mirror M 5 . HV, high voltage; λ 4 , quarter-wave plate.

Fig. 3
Fig. 3

Oscilloscope traces of the Q-switched intracavity pulse (top) and the dumped output pulse (bottom).

Fig. 4
Fig. 4

Output power and optical efficiency versus repetition rate in Q-switched (gray squares) and cavity-dumped Q-switched (black circles) modes.

Fig. 5
Fig. 5

Pulse width versus repetition rate in Q-switched (top) and cavity-dumped Q-switched (bottom) modes.

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