2.09 微米高收益,高能量亚纳秒激光放大系统及其应用在千兆级中红外ZnGeP2光学参数发生器上
Optics letters
|August 2, 2024
概括
研究人员开发了一种新的2.09微米Ho:YAG再生放大器,实现2mJ脉冲能量. 这种亚纳秒源能够有效地生成3-5μm的光学参数.
科学领域:
- 激光物理 激光物理
- 非线性光学是非线性光学.
- 材料科学 材料科学 材料科学
背景情况:
- 高能,亚纳秒脉冲激光器对于非线性光学应用至关重要.
- 为光学参数发生器 (OPG) 开发高效的源仍然是一个挑战.
研究的目的:
- 报告一款新型2.09微米的荷补充伊特花 (Ho:YAG) 再生放大器 (RA).
- 为了证明其作为ZnGeP2 (ZGP) OPG的亚纳秒源的能力.
主要方法:
- 一个增益开关激光二极管 (GSLD) 种植了一个Ho-doped纤维 (HDF) 预放大器.
- 前放大器输出的种子是一个Ho:YAG再生放大器 (RA).
- 一个单通功率放大器 (SPPA) 在OPG之前进一步放大了脉冲.
主要成果:
- 在2.09μm时获得2mJ脉冲能量,脉冲重复频率为1kHz,脉冲持续时间为570ps.
- 整体放大器系统的增益超过90dB.
- 采用5.47mJ能,ZGP OPG在3-5μm时产生了1.82mJ,产生了39.5%的斜坡效率和33.27%的OOCE.
结论:
- 开发的Ho:YAG RA系统是一种稳定可靠的亚纳秒源.
- 该系统可通过ZGP OPG有效地产生中红外辐射.
- 结果突出了非线性光学中高能脉冲激光系统的潜力.
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