Abstract

We report on the experimental studies of a diode-end-pumped passively Q-switched Yb:Y2O3 ceramic laser with a GaAs wafer simultaneously as saturable absorber and output coupler. The Q-switched operation of the laser has an average output power of 0.51 W with a 17.7-W incident pump power. The Q-switched pulses with pulse energy of 7.7 µJ have been achieved. The minimum pulse width is measured to be about 50 ns with a repetition rate of 52.6 KHz. To our knowledge, this is the first demonstration on a passively Q-switched Yb:Y2O3 ceramic laser.

© 2004 Optical Society of America

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References

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App. Phy. Lett.

J. Kong, J. Lu, K. Takaichi, T. Uematsu, K. Ueda, D. Y. Tang, D. Y. Shen, H. Yagi, T. Yanagitani, and A.A.Kaminskii, �??Diode-pumped Yb:Y2O3 ceramic laser,�?? App. Phy. Lett. 82, 2556-2258 (2003).
[CrossRef]

Appl. Opt.

Appl. Phys. Lett.

E. R. Thoen, E. M. Koontz, M. Joschko, P. Langlois, T. R. Schibli, F. X. Kartner, E. P. Ippen, and L. A. Kolodziejski, �??Two-photon absorption in semiconductor saturable absorber mirrors,�?? Appl. Phys. Lett. 74, 3927-3299 (1999).
[CrossRef]

K. Takaichi, H. Yagi, J. Lu, J. F. Bisson, A. Shirakawa, K. Ueda, T. Yanagitani, and A. A. Kaminskii,�??Highly efficient continuous-wave operation at 1030 and 1075 nm wavelengths of LD-pumped Yb3+:Y2O3 ceramic lasers,�?? Appl. Phys. Lett. 84, 317-319 (2004).
[CrossRef]

J. Lu, T. Murai, K. Takaichi, T. Uematsu, M. Prabhu, J.Xu, K. Ueda, H. Yagi, T. Yanagitani, A. A. Kaminskii, and A. Kudryashov, �??72 W Nd:Y3Al5O12 Ceramic Laser,�?? Appl. Phys. Lett. 78, 3586-3588 (2000).
[CrossRef]

IEEE J. Quantum Electron.

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. 14, 289-303 (1988).
[CrossRef]

J. Alloys Comp.

J. Lu, K. Ueda, H. Yagi, T. Yanagitani, Y. Akiyama, and A. A. Kaminskii, �??Neodymium doped yttrium aluminum garnet (Y3Al5O12) nanocrystalline ceramics - A new generation of solid state laser and optical materials,�?? J. Alloys Comp. 340, 220-225 (2002).
[CrossRef]

J. Am. Ceram. Soc.

A. Ikesue, T. Kinoshita, K. Kamata, and K. Yoshida, �??Fabrication and optical properties of high-performance polycrystalline Nd:YAG ceramics for solid-state lasers,�?? J. Am. Ceram. Soc. 78, 1033-1040 (1995).
[CrossRef]

J. Opt. Soc. Am. B

Jpn. J. Appl. Phys.

J. F. Bisson, Y. Feng, A. Shirakawa, H. Yoneda, J. Lu, H. Yagi, T. Yanagitani, and K. Ueda, �??Laser Damage Threshold of Ceramic YAG,�?? Jpn. J. Appl. Phys. 42, L1025-L1027 (2003).
[CrossRef]

Opt. Commun.

J. Kong, D. Y. Tang, J. Lu, K. Ueda, H. Yagi, and T. Yanagitani, �??Passively mode-locked Yb:Y2O3 ceramic laser with a GaAs-saturable absorber mirror,�?? Opt. Commun. 237, 165-168 (2004).
[CrossRef]

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

D. Y. Shen, D. Y. Tang, and J. Kong, "Pasively Q-switched Yb:YAG laser with GaAs output coupler," Opt. Commun. 211, 271-275 (2002).
[CrossRef]

Opt. Express

Opt. Laser Techno.

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

Opt. Lett.

Other

T. Yanagitani, H. Yagi, and M. Ichikawa, Japanese Patent: 10-101333 (1998).

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Figures (7)

Fig. 1.
Fig. 1.

Schematic of the laser setup.

Fig. 2.
Fig. 2.

Average output power versus incident pump power.

Fig. 3.
Fig. 3.

Pulse width versus incident pump power.

Fig. 4.
Fig. 4.

Oscilloscope trace of a typical single pulse profile.

Fig. 5.
Fig. 5.

Repetition rate versus incident pump power.

Fig. 6.
Fig. 6.

Pulse energy versus incident pump power.

Fig. 7.
Fig. 7.

Oscilloscope trace of the Q-switched pulse train

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