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相关概念视频

Oscillations In An LC Circuit01:30

Oscillations In An LC Circuit

An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
Generating Electromagnetic Radiations01:10

Generating Electromagnetic Radiations

The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in the...

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相关实验视频

Updated: Jul 1, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

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一个随机的光学参数振荡器.

Pedro Tovar1, Jean Pierre von der Weid2, Yuan Wang3

  • 1Nexus for Quantum Technologies, University of Ottawa, 25 Templeton Street, Ottawa, ON, K1N 6N5, Canada. ptovarbr@uottawa.ca.

Nature communications
|October 20, 2023
PubMed
概括
此摘要是机器生成的。

研究人员使用光纤开发了第一个随机光学参数振荡器 (OPO),克服了传统OPO的局限性. 这种强大而灵活的设备提供可调节的波长和可调节的脉冲特性,用于像LiDAR这样的应用.

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Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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相关实验视频

Last Updated: Jul 1, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

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Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
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Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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科学领域:

  • 非线性光学是一种非线性光学.
  • 光纤光学是指光纤的使用.
  • 激光物理学的激光物理学

背景情况:

  • 同步送的光学参数振荡器 (OPO) 提供可调节的超快速光脉冲,但需要精确的空腔控制,限制灵活性.
  • 现有的OPO面临着固定的重复率和有限的脉冲宽度调节的挑战.

研究的目的:

  • 开发一种更简单,更通用的光学参数振荡器 (OPO).
  • 探索在单模纤维中使用固有的折射率障碍来实现OPO.

主要方法:

  • 介绍了随机光学参数振荡器 (OPO) 的概念,类似于随机激光器.
  • 使用调制不稳定性 (χ(3) 非线性) 进行参数放大.
  • 在光学反的单模纤维中采用雷利散射.

主要成果:

  • 展示了第一个无精确温度或长度控制的随机OPO运行.
  • 实现了高的脉冲间连贯性 (约0.4毫秒的连贯时间).
  • 显示可调节的重复率 (16.62000 kHz) 和脉冲宽度 (0.6947.9 ns).

结论:

  • 新型随机OPO为传统的OPO提供了强大而灵活的替代方案.
  • 该设备的连续运行和可调节的参数适用于LiDAR应用.
  • 这项工作为未来使用各种参数放大机制的随机OPO铺平了道路.