By using a PbS-doped phosphate glass as an intracavity saturable absorber, we achieved passive Q switching of a 1.54-µm Er:Yb:glass laser. We obtained Q-switched pulses with 110-ns duration and 0.2-mJ energy. The saturation intensity at 1.54 µm was estimated to be ∼60 kW/cm2.
© 2000 Optical Society of America
Original Manuscript: October 11, 1999
Revised Manuscript: May 12, 2000
Published: August 20, 2000
Alexander M. Malyarevich, Igor A. Denisov, Vasily G. Savitsky, Konstantin V. Yumashev, and Andrey A. Lipovskii, "Glass doped with PbS quantum dots for passive Q switching of a 1.54-µm laser," Appl. Opt. 39, 4345-4347 (2000)