Description
High-power single-frequency lasers with controllable spatial modes are highly desirable for coherent detection, precision measurement, remote sensing, and nonlinear optics. However, simultaneously achieving high power, narrow linewidth, low noise, and flexible spatial-mode control remains challenging. In this presentation, we will introduce our recent progress in high-power single-frequency diamond lasers based on Raman and Brillouin nonlinear processes. These nonlinear interactions enable efficient wavelength conversion, linewidth narrowing, coherence enhancement, and the generation and conversion of structured light. Through cavity engineering, mode matching, and tailored nonlinear gain, higher-order transverse modes can be generated directly within the laser oscillator, providing flexible control of the output spatial profile without external mode-conversion elements. We will further highlight Raman- and Brillouin-mediated structured-light generation and conversion, together with controllable fundamental and higher-order transverse-mode operation. These advances provide a promising route toward high-power single-frequency diamond lasers with simultaneously tailorable spectral and spatial characteristics.
| I am the presenting author | No |
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| If you are not the presenting author, please give the presenting author's name: | Zhenxu Bai |