Thermo-optical modeling of high power operation of 2 μm codoped Tm,Ho solid-state lasers

Abstract

Articles you may be interested in Efficient 2.0μm emission in Nd3+/Ho3+ co-doped tungsten tellurite glasses for a diode-pump 2.0μm laser

128 mJ/Pulse, Laser-Diode-Pumped, Q-Switched Tm:YAG Laser

“…To obtain a high pulse energy at 2 μm, we selected a Tm:YAG crystal as the laser medium among several laser crystals, such as Tm:YAG, Tm,Ho:YAG, and Tm,Ho:YFL, that operate around 2 μm [8], [9]. Tm:YAG provides both a high energy storage capacity and high pumping efficiency, because the upper laser level, 3 H 4 , has a lifetime exceeding 10 ms [10], [11] and cross-relaxation occurs between neighboring thulium ions [12], [13].…”

Numerical Simulation of High-Power Operation of 2 µm Co-doped Tm,Ho Solid-State Lasers

“…This approach is mainly used for the CW mode or as an averaged estimate for highrepetition pulsed mode. However, we (Louchev et al, 2008) …”

“…Nevertheless significant effort is still necessary for defining optimized parameters and achieving high lasing efficiency for high power operation associated with significant temperature increase and related effects of pulse energy inhibition and thermal lensing destroying laser operation (Akhmanov et al 1972). In this work we review main computational and numerical optimization results of a side pumped Tm,Ho:YLF laser for producing MW-power giant pulses with durations of several hundred nanoseconds using the coupled thermo-optical model Louchev et al, 2008). In particular, section 2 focuses on optical model which integrates 8-level rate dynamics model with the oscillator energy equation.…”

Diode-pumped electro-optical cavity-dumped Tm:YAP laser at 1996.9 nm

“…Eye-safe, diode-pumped all-solid-state lasers operating in the spectral region near 2 μm are regarded as promising sources for various applications in Doppler wind sensing, differential absorption lidar, water vapor profiling, and low-altitude wind shear detection [1,2] . The high repetition rate, short pulse width, 2 μm pulse lasers are especially widely used in industrial processing, laser ranging, scientific research, etc.…”