Efficient and high-power green beam generation by frequency doubling of acousto-optic Q-switched diode-side pumped Nd:YAG rod laser in a coupled cavity

Pramana

P K Mukhopadhyay1¹  S M Oak¹  A J Singh¹  S K Sharma¹ 

[1] Solid State Laser Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India$$

关键词: Nd:YAG laser;    diode-side-pumped;    Q-switched;    coupled cavity resonator;    intracavity second-harmonic generation;    thermal lens.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

A 52-W green laser at 532 nm by extra-cavity second-harmonic generation in a coupled-cavity configuration is demonstrated. The fundamental laser is a diode-side-pumped acousto-optic (AO) Q-switched Nd:YAG rod laser producing 84 W of average power at 1064 nm at 8 kHz repetition rate. Type-II phase-matched polished KTP crystal is used as the nonlinear crystal for second-harmonic generation. The individual green pulse width is 50 ns and the fundamental to second harmonic conversion efficiency is 61.8%.

【 授权许可】

Unknown