Lei Jian, Jiang Wei, Dong Ruihan, Yang Gaozinan, Li Jie, Deng Xueshuang
Electronic Information and Electrical College of Engineering, ShangLuo University, Shangluo, Shaanxi, China.
Institute of Quantum Optics and Quantum Information, ShangLuo University, Shangluo, Shaanxi, China.
PLoS One. 2024 Dec 5;19(12):e0310000. doi: 10.1371/journal.pone.0310000. eCollection 2024.
The development and implementation of an unstable resonator laser system were explored in the present study, employing dual-end pumping of a Yb:YAG slab laser via laser diode (LD) arrays. The proposed system exhibited significant improvements in both power output and beam quality. The experimental design and execution of the laser oscillator were conducted under controlled conductive cooling conditions. Operating at a current of 90 A, the system achieved a total output power of 3823 W, with continuous-wave laser emission at 1030 nm observed bidirectionally. The measured beam qualities were 1.737 and 2.085, indicating that the system maintained good beam quality while achieving high power output. Additionally, an investigation into the optical-to-optical conversion efficiency was conducted, yielding a value of 35%. The findings underscore the exceptional performance of the devised unstable resonator within Yb:YAG slab lasers, with anticipated pivotal contributions to the broader laser domain. Novel approaches towards attaining high power output and superior beam quality laser sources were introduced, marking substantial advancements in Yb:YAG slab laser technology. The implications of these findings extend beyond the realm of laser technology, providing valuable insights applicable to a diverse range of optical, thus allowing the study's impact to transcend its immediate field.
本研究探索了一种不稳定谐振腔激光系统的开发与实施，该系统通过激光二极管（LD）阵列对Yb:YAG板条激光器进行双端泵浦。所提出的系统在功率输出和光束质量方面均有显著改善。激光振荡器的实验设计与实施是在可控的传导冷却条件下进行的。该系统在90 A的电流下运行，实现了3823 W的总输出功率，双向观测到1030 nm的连续波激光发射。测量得到的光束质量分别为1.737和2.085，表明该系统在实现高功率输出的同时保持了良好的光束质量。此外，还对光光转换效率进行了研究，得到的值为35%。这些发现突出了所设计的不稳定谐振腔在Yb:YAG板条激光器中的卓越性能，预计对更广泛的激光领域将有重要贡献。引入了实现高功率输出和优异光束质量激光源的新方法，标志着Yb:YAG板条激光技术取得了重大进展。这些发现的影响超出了激光技术领域，为各种光学领域提供了有价值的见解，从而使该研究的影响超越了其直接领域。
