Diode-Pumped Passively Mode-Locked Yb³⁺-Doped Yttrium
Lanthanum Oxide Ceramic Sub-Picosecond Laser¹

Z. L. Wang^{a, b}, Z. Y. Wei^a, *, Q. Wang^a, D. H. Li^a, Z. G. Zhang^a, Y. D. Zhang^a,
Q. H. Yang^c, H. J. Zhang^c, and S. Z. Lu^c

^a Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences,
Beijing 100190, China

^b School of Technical Physics, Xidian University, Xian 710071, China

^c School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China

*e-mail: zywei@iphy.ac.cn

Received July 7, 2011; in final form, August 11, 2011; published online November 28, 2011

Abstract—A diode-pumped sub-picosecond laser is realized with Yb³⁺-doped yttrium lanthanum oxide trans-
parent ceramic Yb:(Y_0.9La_0.1)₂O₃ as the gain medium for the first time. By using Gires–Tournois interferometer
mirrors and chirped mirror for dispersion compensation and semiconductor saturable absorber mirror for pas-
sive mode-locking, laser pulse as short as 730 fs was obtained at the central wavelength of 1033nm and repe-
tition rate of 65.5 MHz. Under the maximum pump power of 6 W at 976 nm, the output power is 92 mW.

DOI: 10.1134/S1054660X12010215

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