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

Search research articles

Related Experiment Video

Updated: Jun 20, 2026

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

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

Published on: May 30, 2014

Mode locking using a type II multiple-quantum-well structure as a fast saturable absorber.

J Feldmann, J Sacher, E Göbel

|September 24, 2009

Summary

This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by

Same author

Effects of feeding dairy cows seaweed mixtures on feed intake, methane emission, milk production, and milk mineral and fatty acid composition.

Journal of dairy science·2025

Same author

Dietary and serum tyrosine, white matter microstructure and inter-individual variability in executive functions in overweight adults: Relation to sex/gender and age.

Appetite·2022

Same author

Publisher Correction: Parallel convolutional processing using an integrated photonic tensor core.

Nature·2021

Same author

Parallel convolutional processing using an integrated photonic tensor core.

Nature·2021

Same author

All-optical spiking neurosynaptic networks with self-learning capabilities.

Nature·2019

Same author

Calculating with light using a chip-scale all-optical abacus.

Nature communications·2017

Type II AlGaAs/AlAs multiple quantum wells act as fast saturable absorbers in dye lasers. These quantum wells enable the generation of ultrashort, 0.9 picosecond pulses due to their rapid recovery times.

Area of Science:

Optics and Photonics
Semiconductor Physics
Laser Technology

Background:

Mode-locked lasers are crucial for generating ultrashort optical pulses.
Saturable absorbers are key components for initiating and stabilizing mode-locking.
Type II multiple quantum wells offer fast absorption recovery dynamics.

Purpose of the Study:

To investigate the efficacy of Type II Al(x)Ga(1-x)As/AlAs multiple quantum wells as saturable absorbers.
To demonstrate their application in hybridly mode-locked dye lasers.
To characterize the performance of these quantum wells in generating ultrashort pulses.

Main Methods:

Fabrication and characterization of Type II Al(x)Ga(1-x)As/AlAs multiple quantum wells.
Integration of the quantum well structure into a hybridly mode-locked dye laser.

More Related Videos

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Published on: April 24, 2014

Related Experiment Videos

Last Updated: Jun 20, 2026

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

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

Published on: May 30, 2014

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Published on: April 24, 2014

Measurement of output pulse duration and recovery time.

Main Results:

The Type II quantum well functioned effectively as a fast saturable absorber.
Hybridly mode-locked dye laser operation was achieved.
Ultrashort pulses with durations as short as 0.9 picoseconds were generated.
The quantum well sample exhibited a recovery time of 2.3 picoseconds.

Conclusions:

Type II Al(x)Ga(1-x)As/AlAs multiple quantum wells are suitable for fast saturable absorber applications.
Their fast recovery times are advantageous for generating sub-picosecond pulses.
This technology advances the development of high-performance mode-locked lasers.