Efficient diode-pumped Tm:KYW 1.9-μm microchip laser with 1 W cw output power

Gaponenko, Maxim; Kuleshov, Nikolay; Südmeyer, Thomas

doi:10.1364/OE.22.011578

Efficient diode-pumped Tm:KYW 1.9-μm microchip laser with 1 W cw output power

Author(s)

Gaponenko, Maxim

Laboratoire temps-fréquence

Kuleshov, Nikolay

Südmeyer, Thomas

Laboratoire temps-fréquence

Date issued

2014

In

Optics Express, Optical Society of America

Vol

22

No

10

From page

11578

To page

11582

Abstract

We report on a diode-pumped Tm:KYW microchip laser generating 1 W continuous-wave output power. The laser operates at a wavelength of 1.94 μm in the fundamental TEM<sub>00</sub> mode with 71% slope efficiency relative to the absorbed pump radiation and 59% slope efficiency relative to the incident pump radiation. The optical-to-optical laser efficiency is 43%.