Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Model of a multiple-line distributed-feedback dye laser.

Nasrullah Khan1

  • 1Department of Electrical and Electronic Engineering, Faculty of Engineering, University Putra Malaysia, 43400 UPM Serdand, Selangor, Malaysia. khan@eng.upm.edu.my

Applied Optics
|February 10, 2004
PubMed
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

Local biophysical drivers outweigh climatic controls in shaping juniper regeneration in the Eastern Hindu Kush: implications for conservation.

Die Naturwissenschaften·2026
Same author

Exploring the Impact of Size and Charge of Lipid Nanoparticles on Lymphatic Distribution: Perceptivity from Microfluidic Mixing Method.

International journal of pharmaceutical compounding·2025
Same author

Carbon stock dynamics in juniper woodlands are jointly influenced by socio-ecological and environmental variables in the monsoon-shadow zone of the eastern Hindu Kush: insights for climate change mitigation strategies.

Environmental monitoring and assessment·2025
Same author

Comparative Analysis of Perceived Threat Threshold from Various Drivers to Cranes Along Indus Flyway, Punjab, Pakistan.

Biology·2025
Same author

Integrating GANs, Contrastive Learning, and Transformers for Robust Medical Image Analysis.

IEEE journal of biomedical and health informatics·2025
Same author

Lead and cadmium toxicity effects on the <i>Pinus roxburghii</i> seed germination and early seedling growth in different environments.

PeerJ·2025

Researchers describe a method for generating multiple laser lines in a dye laser using interference patterns from multiple pump beams. This technique allows for precise control over the number of laser lines produced, offering new possibilities for tunable laser applications.

Area of Science:

  • Optics and Photonics
  • Laser Physics
  • Materials Science

Background:

  • Distributed-feedback dye lasers offer tunable wavelength output.
  • Controlling the number of simultaneous laser lines is crucial for advanced applications.
  • Previous methods lacked precise control over multi-line oscillation.

Purpose of the Study:

  • To theoretically describe the simultaneous oscillation of multiple laser lines (2N-3) in a distributed-feedback dye laser.
  • To investigate the role of interference patterns from multiple pump beams in generating these lines.
  • To establish the relationship between pump beam parameters and the number of output laser lines.

Main Methods:

  • Utilizing interference patterns from N/2 pairs of time-delayed, frequency-doubled Nd:YAG laser pulses to create multiple gratings in a dye solution.

Related Experiment Videos

  • Analyzing the conditions for Bragg scattering in relation to grating periodicity and pump beam characteristics.
  • Experimentally pumping dye solutions with two, four, and six pulses to observe multi-line oscillation.

    • Main Results:

    • Demonstrated that interference of N pump beams can induce multiple gratings supporting 2N-3 laser lines.
    • Identified that grating periodicity, determined by time delays and beam configurations, dictates Bragg scattering capability.
    • Observed output lasing lines varying from three to nine with three pairs of excitation beams, depending on experimental parameters.

    Conclusions:

    • The theoretical framework supports simultaneous oscillation of 2N-3 laser lines based on pump beam interference and grating formation.
    • The number of laser lines is controllable by adjusting parameters such as pulse delay, coherence, polarization, pulse length, and number of pulses.
    • The principle is extendable to generate a higher number of output lines by increasing the number of pump pulses and dye gain.