在固态激光器中用于载体外偏移频率稳定的直接电光相控
Optics express
|June 14, 2025
概括
这项研究引入了一种新的方法,用于使用电光调制器稳定激光载波外偏移频率 (fceo). 这种方法比模式锁定激光器的传统功率控制提供了更好的性能.
科学领域:
- 激光物理 激光物理
- 非线性光学是非线性光学.
- 量子光学是一种量子光学.
背景情况:
- 载波外偏移频率 (fceo) 稳定对于模式锁定激光器至关重要.
- 使用功率控制的当前方法由于获得中等响应时间而具有有限的带宽.
研究的目的:
- 为固态激光器展示和验证一种新的fceo稳定技术.
- 为了利用线性电光效应直接控制载体-外相位演变.
主要方法:
- 在Kerr-镜头模式锁定的Cr:ZnS激光器中实现尼酸盐电光调制器 (EOM).
- 使用电光效应直接控制载体-外阶段,绕过增强介质的限制.
主要成果:
- 基于 EOM 的 fceo 稳定实现了 6.6 mrad 的相位噪声 (10 Hz - 12.5 MHz) 的卓越性能,超过了调制 (7.6 mrad).
- 鉴定了一种带宽限制,原因是酸EOM中的压电诱导声学共振.
结论:
- 电光调制为固态激光器中fceo稳定提供了一个有希望的,高带宽的替代方案.
- EOM设计必须考虑压电效应,以优化执行器响应并进一步提高fceo稳定性.
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