概括
我们开发了一种高功率,高纯度的1.7微米拉曼纤维激光器,采用的纤维布拉格格. 这个激光器实现了30.2W的输出功率,为中红外应用提供了稳定的解决方案.
科学领域:
- 激光物理 激光物理
- 光纤光学是指光纤的使用.
- 非线性光学是非线性光学.
背景情况:
- 1.7微米激光器是有效的3微米中红外激光生成的关键源.
- 高功率和高光谱纯度的1.7微米光纤激光器在各种应用中受到需求.
研究的目的:
- 开发一款高功率,高光谱纯度的第一阶段斯托克斯-拉曼光纤激光器,在1680nm运行.
- 为了研究使用宽带 chirped 纤维布拉格格 (CFBG) 作为拉曼腔镜来减轻光谱不匹配.
主要方法:
- 用自制的1565nm主振荡器功率放大器 (MOPA) 作为源.
- 作为拉曼腔镜,使用了带宽为25.5纳米的宽带CFBG.
- 标志着激光器的输出功率,光谱纯度,斜率效率和功率稳定性.
主要成果:
- 在1680nm时获得30.2W的输出功率,光谱纯度为99.2%.
- 获得了相对于发射功率的72.9%的斜率效率.
- 在一小时内表现出优异的功率稳定性,波动低于1%.
结论:
- 这项工作呈现了一种创纪录的高功率 (30.2 W) 一级斯托克斯-拉曼光纤激光器,其光谱纯度>99%的1.7微米.
- 开发的激光器为产生高功率1.7微米激光器提供了稳定和功率可扩展的解决方案.
- 高光谱纯度使得这种激光器成为全纤维集成中红外纤维激光器的有希望的源.
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