Abstract

High-power continuous-wave laser operation was demonstrated with a y-cut Yb:YCa4O(BO3)3 crystal, showing critical dependence on the output coupler used. Polarized laser oscillation with Ex was obtained at 1085.6nm by using a coupler of 0.5% transmission, yielding an output power of 7.3W with an optical-to-optical efficiency of 63%. Higher output couplings (2%) led to polarized oscillation with Ez at laser wavelengths 1055.5nm, the highest output power was 6.5W. Dual-wavelength operation in the two polarization states was realized with a coupler of 1% transmission, the output powers for the two orthogonal polarizations were 3.15W at 1084.3nm (Ex) and 3.45W at 1061.3nm (Ez). The slope efficiency for output couplers with transmission in the 0.5%–2% range was 81%–83%.

© 2007 Optical Society of America

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References

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2007 (2)

2006 (1)

2001 (1)

A. Aron, G. Aka, B. Viana, A. Kahn-Harari, D. Vivien, F. Druon, F. Balembois, P. Georges, A. Brun, N. Lenain, and M. Jacquet, Opt. Mater. 16, 181 (2001).
[CrossRef]

1999 (2)

H. Zhang, X. Meng, P. Wang, L. Zhu, X. Liu, R. Cheng, J. Dawes, P. Dekker, S. Zhang, and L. Sun, Appl. Phys. B 68, 1147 (1999).
[CrossRef]

L. Shah, Q. Ye, J. M. Eichenholz, D. A. Hammons, M. Richardson, B. H. T. Chai, and R. E. Peale, Opt. Commun. 167, 149 (1999).
[CrossRef]

Appl. Opt. (1)

Appl. Phys. B (1)

H. Zhang, X. Meng, P. Wang, L. Zhu, X. Liu, R. Cheng, J. Dawes, P. Dekker, S. Zhang, and L. Sun, Appl. Phys. B 68, 1147 (1999).
[CrossRef]

IEEE J. Quantum Electron. (1)

O. Casagrande, N. Deguil-Robin, B. Le Garrec, and G. L. Bourdet, IEEE J. Quantum Electron. 43, 206 (2007).
[CrossRef]

Opt. Commun. (1)

L. Shah, Q. Ye, J. M. Eichenholz, D. A. Hammons, M. Richardson, B. H. T. Chai, and R. E. Peale, Opt. Commun. 167, 149 (1999).
[CrossRef]

Opt. Lett. (1)

Opt. Mater. (1)

A. Aron, G. Aka, B. Viana, A. Kahn-Harari, D. Vivien, F. Druon, F. Balembois, P. Georges, A. Brun, N. Lenain, and M. Jacquet, Opt. Mater. 16, 181 (2001).
[CrossRef]

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Figures (2)

Fig. 1
Fig. 1

Output power versus absorbed pump power for (a) T = 2 % , 5%, and 10%, (b) T = 0.5 % , and (c) T = 1 % .

Fig. 2
Fig. 2

Emission spectra of the Yb:YCOB laser for T = 1 % , recorded at different output powers, revealing the dependence of the polarization state and laser wavelength on the power level.

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