Jove
Visualize
联系我们

相关概念视频

MOSFET Amplifiers01:17

MOSFET Amplifiers

156
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...
156
Small-Signal Analysis of MOSFET Amplifiers01:23

Small-Signal Analysis of MOSFET Amplifiers

557
In small-signal analysis, a MOSFET transistor amplifier acts as a linear amplifier when operating in its saturation region. The gate-to-source voltage (VGS) of the MOSFET is the sum of the DC biasing voltage and the small time-varying input signal. This combination sets up the operating point and modulates the drain current (ID) that flows from the drain to the source. When a small AC signal is superimposed on the DC bias voltage at the gate, the instantaneous drain current comprises three...
557

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Erratum: Sub-50-femtosecond gain-managed amplified pulses enhance nonlinear ablation efficiency: publisher's note.

Biomedical optics express·2026
Same author

Single-mode nonlinear amplification of femtosecond pulses in a multimode-fiber regenerative amplifier.

Optics letters·2026
Same author

Erratum: Efficient, broadly-tunable, hollow-fiber source of megawatt pulses for multiphoton microscopy: erratum.

Biomedical optics express·2026
Same author

Sub-50-femtosecond gain-managed amplified pulses enhance nonlinear ablation efficiency.

Biomedical optics express·2026
Same author

Observation of stability of Gaussian beams and off-axis beam-cleaning in graded-index rods.

Optics express·2025
Same author

Multi-megawatt pulses from 1030 to 1300 nm based on soliton self-frequency shifting in a nitrogen-filled fiber: publisher's note.

Optics letters·2025
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关实验视频

Updated: Jul 1, 2025

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

11.5K

在多模光纤中单模再生放大.

Henry Haig1, Nicholas Bender1, Yishai Eisenberg1

  • 1School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA.

Optica
|March 4, 2024
PubMed
概括
此摘要是机器生成的。

研究人员使用再生放大实现了多模式光纤激光器的单模式操作. 这一突破使得高能,短脉冲光纤激光器具有出色的光束质量和收益.

更多相关视频

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

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

Published on: November 22, 2019

7.5K
Writing Bragg Gratings in Multicore Fibers
08:48

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

8.1K

相关实验视频

Last Updated: Jul 1, 2025

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

11.5K
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

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

Published on: November 22, 2019

7.5K
Writing Bragg Gratings in Multicore Fibers
08:48

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

8.1K

科学领域:

  • 物理 物理学 物理
  • 光学工程是指光学工程.
  • 激光技术 激光技术 激光技术

背景情况:

  • 超快光纤激光器对于科学研究和工业应用至关重要.
  • 扩展峰值功率需要更大的光纤模式区域,这通常导致多模式操作.
  • 在大型核心纤维中控制多个模式是激光设计中的一个重大挑战.

研究的目的:

  • 展示一种新的技术,用于在高度多模纤维中实现单模运行.
  • 开发一种高性能短脉冲光纤激光源.
  • 为了克服大面积纤维中模式控制的局限性,用于高功率激光应用.

主要方法:

  • 利用再生放大来控制高度多模纤维中的模式选择.
  • 使用单个放大阶段来产生短脉冲.
  • 描述了激光输出的脉冲能量,光束质量和光谱特性.

主要成果:

  • 从高度多模光纤实现单模操作.
  • 获得高增益 (>55 dB) 与最小的放大自发发射.
  • 产生的高脉冲能量 (>50μJ) 与良好的光束质量 (M2 ≤1.3).
  • 在单个放大阶段产生了变换限制的300 fs脉冲.

结论:

  • 再生放大是一种有效的技术,用于单模式运行在多模式纤维.
  • 开发的光纤激光源提供了前所未有的高收益,脉冲能量和光束质量的组合.
  • 这项工作为扩大峰值强度和推进短脉冲光纤激光技术开辟了道路.