Abstract

Self-Q-switching is observed in a bulk Yb:KGd(WO₄)₂ oscillator without any additional modulating elements. The output power reaches 434.4 mW at a pump power of 13.67 W, corresponding to pulse repetition rate of 125 kHz and a pulse duration of 2.5 μs, respectively. The mechanism of self-pulse formation is explained by the re-absorption effect of the Yb³⁺ ion in Yb:KGd(WO₄)₂.

© 2015 Chinese Laser Press

Passive Q switching and self-frequency Raman conversion in a diode-pumped Yb:KGd(WO₄)₂ laser

A. A. Lagatsky, A. Abdolvand, and N. V. Kuleshov
Opt. Lett. 25(9) 616-618 (2000)

Highly efficient 12  W diode-pumped actively Q-switched Yb:KGd(WO₄)₂ laser

V. E. Kisel, A. S. Rudenkov, N. V. Kuleshov, and A. A. Pavlyuk
Opt. Lett. 39(10) 3038-3041 (2014)

Efficient passively Q-switched laser operation of Yb in the disordered NaGd(WO₄)₂ crystal host

Junhai Liu, Valentin Petrov, Huaijin Zhang, Jiyang Wang, and Minhua Jiang
Opt. Lett. 32(12) 1728-1730 (2007)

Ultrafast laser inscribed Yb:KGd(WO₄)₂ and Yb:KY(WO₄)₂ channel waveguide lasers

F.M. Bain, A.A. Lagatsky, R.R. Thomson, N.D. Psaila, N.V. Kuleshov, A.K. Kar, W. Sibbett, and C.T.A. Brown
Opt. Express 17(25) 22417-22422 (2009)

Pulsed laser operation of Yb-doped KY(WO₄)₂ and KGd(WO₄)₂

N. V. Kuleshov, A. A. Lagatsky, A. V. Podlipensky, V. P. Mikhailov, and G. Huber
Opt. Lett. 22(17) 1317-1319 (1997)