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@inproceedings{Piotrowski:2026:10.1117/12.3080688,
author = {Piotrowski, M and Bogas-Droy, A and Bigotta, S and Murray, RT and Spindler, G and Hildenbrand-Dhollande, A},
doi = {10.1117/12.3080688},
title = {Watt-level narrowband nanosecond pulsed laser source at 6.15 µm and 6.45 µm for biomedical applications based on ZGP OPO in a non-planar resonator},
url = {http://dx.doi.org/10.1117/12.3080688},
year = {2026}
}
TY - CPAPER
AB - Certain biomedical applications, such as effective tissue ablation, require good beam quality and spectrally narrow emissions at wavelengths greater than 6 µm. Pulsed laser sources with the desired parameters in this spectral region are still limited and are mostly based on expensive, complex free electron lasers. However, optical parametric oscillators (OPOs) offer a compact alternative solution. In a non-planar cavity, we use an OPO with a ZGP nonlinear crystal that is pumped by a nanosecond-pulsed Ho:LLF laser (2.06 µm) to produce narrowband emissions at approximately 6.15 µm and 6.45 µm. In a preliminary experiment with intracavity etalons, we achieved an output power of more than 1.5 W above 6 µm, with a significantly narrowed emission bandwidth of the order of 10 nanometers.
AU - Piotrowski,M
AU - Bogas-Droy,A
AU - Bigotta,S
AU - Murray,RT
AU - Spindler,G
AU - Hildenbrand-Dhollande,A
DO - 10.1117/12.3080688
PY - 2026///
SN - 0277-786X
TI - Watt-level narrowband nanosecond pulsed laser source at 6.15 µm and 6.45 µm for biomedical applications based on ZGP OPO in a non-planar resonator
UR - http://dx.doi.org/10.1117/12.3080688
ER -