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Q-switched Ho:Lu2O3 laser at 2.12 μm
Samir Lamrini1, Philipp Koopmann, Karsten Scholle
1LISA laser products OHG, Max-Planck-Str. 1, Katlenburg-Lindau 37191, Germany. samir.lamrini@ruhr‑uni‑bochum.de
Optics Letters
|June 1, 2013
Summary
This study demonstrates a Q-switched laser using Holmium-doped lutetium oxide (Ho:Lu2O3) crystals. The laser achieved 8 mJ output energy and 40 kW peak power at a 2.124 μm wavelength.
Area of Science:
- Solid-state laser physics
- Materials science
Background:
- Holmium-doped lasers are crucial for various applications, including medical and industrial uses.
- Efficient resonant pumping is key to optimizing laser performance.
Purpose of the Study:
- To investigate the performance of a Q-switched Ho:Lu2O3 laser.
- To explore resonant pumping using a Gallium Antimonide (GaSb)-based laser diode.
Main Methods:
- Utilized a compact plano-plano resonator design.
- Employed acousto-optic Q-switching for pulsed operation.
- Resonantly pumped the Ho:Lu2O3 gain medium with a 1.9 μm GaSb laser diode stack.
Main Results:
- Achieved a maximum output energy of 8 mJ at a 100 Hz pulse repetition rate.
- Generated a peak power of 40 kW.
- The laser operated at a wavelength of 2.124 μm.
Conclusions:
- The Q-switched Ho:Lu2O3 laser demonstrates high output energy and peak power.
- Resonant pumping with GaSb laser diodes is an effective method for exciting Ho:Lu2O3 lasers.
- This compact laser system shows promise for applications requiring high-energy, pulsed 2.124 μm radiation.
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