Holmium lasers passively Q-switched with PbS quantum-dot-doped glasses.

Holmium lasers passively Q-switched with PbS quantum-dot-doped glasses.

Applied optics (2006-02-09)

Maxim S Gaponenko, Alexander M Malyarevich, Konstantin V Yumashev, Helga Raaben, Alexander A Zhilin, Andrey A Lipovskii

ABSTRACT

PbS quantum-dot-doped glasses are demonstrated as saturable absorber Q-switches for 2 microm holmium lasers. Q-switched pulses from Ho3+:Y3Sc2Al3O12 and Ho3+:Y3Al5O12 lasers of 50 and 70 ns in duration, respectively, have been obtained demonstrating up to 13% of energy conversion efficiency from free-running to Q-switched output.

MATERIALS

Product Number

Brand

Product Description

925543

Sigma-Aldrich

Infrared PbS quantum dots, λ_max, 1350 nm, 100 mg/mL in toluene

925535

Sigma-Aldrich

Infrared PbS quantum dots, λ_max, 1550 nm, 100 mg/mL in toluene