205 W TEM<sub>00</sub>-mode-stacked Nd:YAG rotary disk laser with air cooling
We have demonstrated an efficient, high-power continuous-wave Nd:YAG laser utilizing a stacked and rotary-disk configuration for the gain medium. The disks were air-cooled at room temperature. By employing a diode laser pump power of 347 W in a fiber-coupled end-pumped setup, we achieved an output power of 205 W in the fundamental transverse mode from the simplest resonator cavity. The beam quality factors (M<sup>2</sup>) in the orthogonal directions were measured at 1.143 and 1.169, respectively. The optical slope efficiencies were approximately 68%. Additionally, the root mean square (RMS) of the laser's instability, measured continuously over a period of 6 hours, was found to be 0.276%.
Authors
- Sanbin Chen (ORCID: https://orcid.org/0000-0002-7446-2115)
- Jun Tang (ORCID: https://orcid.org/0000-0002-5746-1778)
- Jianlang Li
- Ken‐ichi Ueda
Institutions
- University of Shanghai for Science and Technology (CN)
- University of Electro-Communications (JP)
- North China Research Institute of Electro-optics (CN)
Publication Details
- Journal
- Optics Letters
- Published
- 2025-09-05
- DOI
- https://doi.org/10.1364/ol.573623
- Primary Topic
- Solid State Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00