Abstract
An efficient Nd: A YAG single-frequency laser was demonstrated using a gradient-doped ceramic non-planar ring oscillator (NPRO). A thermal model of the gradient-doped ceramic NPRO was built to analyze the temperature field and thermal focal length. By employing a gradient-doped gain structure, the thermal distribution within the NPRO can be effectively smoothed to reduce thermal lensing effects. Up to 2.8 W of single-frequency output power at 1064 nm from the gradient-doped ceramic NPRO was obtained, with a slope efficiency of 38%.
Original language | English |
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Article number | 757 |
Journal | Photonics |
Volume | 11 |
Issue number | 8 |
DOIs | |
Publication status | Published - Aug 2024 |
Keywords
- composite ceramic
- nonplanar ring oscillator (NPRO)
- single-frequency laser
- thermal effect