概括
我们开发了一种全新的全纤维激光器,具有可调节的L频段波长. 这种功率控制的,全极化维护激光器提供了一个经济高效的,非机械的调方法.
科学领域:
- 光学和光子学 在光学和光子学.
- 激光物理 激光物理
背景情况:
- 锁定模式的光纤激光器对于各种应用至关重要.
- 在全极化维护 (全PM) 纤维激光器中实现波长可调性,特别是在L频段,仍然是一个挑战.
研究的目的:
- 为了展示第一个功率控制的,全PM,全纤维激光器,在L频段具有波长可调性.
- 为NPE激光器引入一种非机械和电气可控的调方法.
主要方法:
- 使用了一个全PM,全纤维配置的模式锁定光纤激光器.
- 使用非线性极化演变 (NPE) 进行模式锁定.
- 通过改变功率来实现波长调整.
主要成果:
- 在L频段 (1565至1625 nm) 演示了一种波长可调节的模式锁定光纤激光器.
- 通过调整功率从45到115mW,实现了超过20nm (1568.2到1588.9nm) 的调整范围.
- 这是全PM NPE激光器中波长调整的首次演示.
结论:
- 开发的激光器为波长调节提供了一种简单,具有成本效益和非机械方法.
- 全PM,全纤维设计确保了强度和易用性.
- 这项技术显示出适应不同波长频段的潜力.
相关概念视频
01:21Time and frequency -Domain Interpretation of Phase-lag Control
Phase-lag controllers are widely used in control systems to improve stability and reduce steady-state errors. A dimmer switch controlling the brightness of a light bulb serves as a practical example of phase-lag control, gradually adjusting the bulb's brightness. Mathematically, phase-lag control or low-pass filtering is represented when the factor 'a' is less than 1.
Phase-lag controllers do not place a pole at zero, but instead influence the steady-state error by amplifying any finite,...
Phase-lag controllers do not place a pole at zero, but instead influence the steady-state error by amplifying any finite,...
01:28Load-frequency control
Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...