相关实验视频
Updated: Mar 15, 2026

10:17
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
12.1K
概括
研究人员开发了一种Yb-doped,多核光纤激光系统,实现3.2kW的平均功率. 这一突破证明了高功率光纤激光系统的重大进步,克服了以前的局限性.
科学领域:
- 光学和光子学 在光学和光子学.
- 材料科学 材料科学 材料科学
背景情况:
- 多核纤维为高功率光纤激光器中减轻热和非线性效应提供了一条途径.
- 在光纤激光器中,缩放核心数量对于高中功率应用至关重要.
研究的目的:
- 为了展示第一个多千瓦多核光纤激光系统.
- 为了实现高平均输出功率与稳定的性能.
主要方法:
- 开发一个Yb-doped多核光纤激光系统.
- 输出功率,稳定性和效率的表征.
主要成果:
- 该系统在所有核心中提供高达3.2千瓦的平均功率.
- 取得了优异的短期和长期电力稳定性.
- 与发射功率相比,记录了86.3%的高斜率效率.
结论:
- Yb-doped 多核光纤激光系统成功实现了多千瓦的功率水平.
- 展示的系统是迈向实际高平均功率光纤激光应用的重要一步.
- 输出功率受功率的可用性限制,表明进一步扩展的潜力.
相关概念视频
Maximum Power Transfer
1.1K
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
By substituting the entire circuit with...
1.1K
BJT Amplifiers
1.1K
Bipolar Junction Transistors (BJTs) are pivotal components in amplifier circuits, functioning as voltage-controlled current sources in their active region. This characteristic allows them to efficiently control the collector current through variations in the base-emitter voltage. Essentially, BJTs amplify power due to their ability to take a weak input signal and output a much stronger signal.
In BJT amplifier configurations, particularly in common-emitter setups, the transistor's role...
In BJT amplifier configurations, particularly in common-emitter setups, the transistor's role...
1.1K
MOSFET Amplifiers
622
The MOSFET, when operating in its active region, functions as a voltage-controlled current source. In this region, the gate-to-source voltage controls the drain current. This principle underlies the operation of the transconductance MOSFET amplifier. The output current is directed through a load resistor to convert this amplifier into a voltage amplifier. The output voltage is then obtained by subtracting the voltage drop across the load resistance from the supply voltage. This process results...
622
Fiber Reinforced Concrete
492
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
492
Power Factor Correction
642
The power transmission to a factory involves the transfer of apparent power, a combination of active and reactive power. The power factor measures how effectively electrical power is converted into useful work output. The ratio of the real power (KW) that does the work to the apparent power (KVA) supplied to the circuit.
642
Power in a Three-Phase Circuit
694
Three-phase systems have two configurations: the wye and delta. A star configuration can be three or four wires; in a delta configuration, the components are connected in a closed loop. Instantaneous power refers to the power value at a precise moment, and in a balanced three-phase system, it is constant. This is because the sum of the instantaneous powers in the three phases remains steady over time, despite individual fluctuations, due to the symmetry and phase relationship. The total...
694

