Efficient Ho:YVO4 Laser Double-Pass-Pumped by a Wavelength-Stabilized Laser Diode

Abstract

A Ho:YVO4 laser double-pass-pumped with a 1.91 μm wavelength-stabilized laser diode is presented in this paper. The maximum output power was up to 8.7 W, with a wavelength of 2052.4 nm and a slope efficiency of 37.4%. The M2 factors in the x and y directions were 1.8 and 1.6 at the maximum output power, respectively.

Passive Q‐switched operation of Tm:YAP laser with a TaTe2 saturable absorber

“…Nowadays, all‐solid‐state short‐pulse lasers operating have been extensively researched at 2 µm waveband due to the waveband located in some biological tissue fluids, the higher absorption peak of water molecules, and atmospheric window, 1 so the laser source can be widely used in medical, 2 atmospheric monitoring, 3 optical sensors, 4,5 lidar system 6 coherent light detection and ranging, 7 and the pumping of optical parametric oscillators 8 . And another important use for high harmonic generation could be converted to shorter wavelengths reaching down to the vacuum ultraviolet and extreme ultraviolet spectral range by the driving laser light 9–14 .…”