Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

MOSFET Amplifiers

MOSFET Amplifiers

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...

BJT Amplifiers

BJT Amplifiers

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 extends...

Instrumentation Amplifier

Instrumentation Amplifier

An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily overwhelmed by noise or interference.
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...

Cascaded Op Amps

Cascaded Op Amps

Operational amplifiers (op-amps) are versatile electronic components that can be interconnected in a cascade - one after another in a linear sequence. This cascading is possible due to their infinite input resistance and zero output resistance, allowing them to maintain their input-output relationships even when connected in series.
In a cascaded system, each op-amp is referred to as a stage. The output of one stage drives the input of the subsequent stage. As the input signal passes through...

Small-Signal Analysis of MOSFET Amplifiers

Small-Signal Analysis of MOSFET Amplifiers

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...

Design Example: Vintage Mixing Console

Design Example: Vintage Mixing Console

A sound engineer at a music company recently encountered a problem. The output from their newly acquired studio's vintage mixing console was too low for the requirements of modern recording equipment. To rectify this situation, the engineer decided to design an audio pre-amplifier using an operational amplifier (op-amp) to boost the signal level.
The specifications for the pre-amplifier were clear. It needed to amplify the audio signal by a factor of 10, have an input impedance above 10...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

How the mapping of threshold concepts across a master's programme in health professions education could support the development of mastersness.

BMC medical education·2024

Same author

Changes in the quality of life in patients undergoing orthognathic therapy - A systematic review.

Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery·2023

Same author

The impact of antenatal and postnatal indoor air pollution or tobacco smoke exposure on lung function at 3 years in an African birth cohort.

Respirology (Carlton, Vic.)·2023

Same author

Differential Response of Pelvic Bone Marrow Fluorodeoxyglucose Uptake in Patients Receiving Concurrent Chemoradiotherapy.

Clinical oncology (Royal College of Radiologists (Great Britain))·2023

Same author

Jewish cultural and religious factors and uptake of population-based BRCA testing across denominations: a cohort study.

BJOG : an international journal of obstetrics and gynaecology·2021

Same author

Combined versus single treatment regimens for keloid therapy using serial intralesional corticosteroid injections, surgical excision, silicone- and/or cryotherapy.

JPRAS open·2021

Search research articles

Related Experiment Video

Updated: May 12, 2026

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

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

Published on: July 12, 2017

330 mJ single-frequency Ho:YLF slab amplifier.

H J Strauss¹, D Preussler, M J D Esser

¹National Laser Centre, Council for Scientific and Industrial Research, Pretoria, South Africa. hstrauss@csir.co.za

|April 3, 2013

Summary

This summary is machine-generated.

A novel double-pass Holmium:YLF (Ho:YLF) slab amplifier produced high-energy, single-frequency pulses at 2064 nm. This laser system achieved 330 mJ output energy with excellent beam quality, demonstrating its potential for advanced laser applications.

More Related Videos

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

Related Experiment Videos

Last Updated: May 12, 2026

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

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

Published on: July 12, 2017

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

Area of Science:

Laser physics
Solid-state lasers
Nonlinear optics

Background:

High-energy, single-frequency pulsed lasers are crucial for various scientific and industrial applications.
Ho:YLF lasers offer potential for generating radiation in the mid-infrared spectrum.
Developing efficient and high-power slab laser amplifiers is an ongoing research area.

Purpose of the Study:

To investigate the performance of a double-pass Ho:YLF slab amplifier.
To achieve high-energy, nanosecond-long, single-frequency pulses at 2064 nm.
To evaluate the beam quality and efficiency of the developed amplifier.

Main Methods:

A double-pass amplifier configuration utilizing a Ho:YLF slab gain medium.
End-pumped architecture using a diode-pumped Thulium:YLF (Tm:YLF) slab laser.
Seeding the amplifier with single-frequency pulses up to 50 mJ.

Main Results:

The Ho:YLF slab amplifier delivered 350 ns long single-frequency pulses.
Maximum output pulse energy reached 330 mJ at 2064 nm.
A maximum beam quality factor (M2) of 1.5 was recorded at a repetition rate of 50 Hz.

Conclusions:

The developed double-pass Ho:YLF slab amplifier is a promising high-energy, single-frequency laser source.
The system demonstrates efficient energy extraction and good beam quality.
This technology could be beneficial for applications requiring high-power mid-infrared laser pulses.