2010/08/12 by Yi-Ting Xu, Yiting Xu, Jialin Xu +14 · 24 citations
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Diode #Laser #Laser Design and Applications #Materials science #Optics #Optoelectronics #Physics #Solid State Laser Technologies
paper · doi:10.1364/ao.49.004576
published in Applied Optics 49(24), 4576 (Optica Publishing Group)
openalex publication_date 2010/08/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/23
We present a compact high-efficiency and high-average-power diode-side-pumped Nd:YAG rod laser oscillator operated with a linearly polarized fundamental mode. The oscillator resonator is based on an L-shaped convex-convex cavity with an improved module and a dual-rod configuration for birefringence compensation. Under a pump power of 344 W, a linearly polarized average output power of 101.4 W at 1064 nm is obtained, which corresponds to an optical-to-optical conversion efficiency of 29.4%. The laser is operated at a repetition rate of 400 Hz with a beam quality factor of M(2)=1.14. To the best of our knowledge, this is the highest optical-to-optical efficiency for a side-pumped TEM(00) Nd:YAG rod laser oscillator with a 100-W-level output ever reported.