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Related Experiment Video

Updated: Jun 6, 2026

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

Published on: November 22, 2019

Precisely tunable, narrow-band pulsed dye laser.

P S Bhatia, J W Keto

    Applied Optics
    |November 25, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A new tunable dye laser offers precise wavelength control with 100 mJ/pulse output. This laser system achieves high efficiency and accuracy for spectroscopic applications.

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    Area of Science:

    • Optics and Photonics
    • Laser Physics
    • Spectroscopy

    Background:

    • Precise wavelength control is crucial for many scientific applications, including spectroscopy and laser-based measurements.
    • Traditional tunable dye lasers often face limitations in terms of precision, efficiency, and spectral purity.
    • Developing advanced laser systems is essential for pushing the boundaries of scientific research.

    Purpose of the Study:

    • To describe a narrow-band, precisely tunable dye laser system.
    • To detail the methods for achieving high output energy and efficiency.
    • To demonstrate the absolute wavelength precision of the developed laser.

    Main Methods:

    • Utilizing an injection-seeded YAG laser as the pump source.
    • Employing an intracavity étalon, pressure-scanned under computer control, in conjunction with a grating.

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  • Implementing precise calibration methods for tuning elements.

    • Main Results:

    • Achieved an output of 100 mJ/pulse with 40% efficiency using Rhodamine 6G dye.
    • Demonstrated a Gaussian temporal and spatial output pulse profile.
    • Verified an absolute wavelength precision of ±0.4 pm over a 1.0-nm scan.

    Conclusions:

    • The described dye laser system provides a highly efficient and accurate tunable light source.
    • The combination of an intracavity étalon and computer-controlled scanning enables precise wavelength selection.
    • This laser technology is suitable for demanding spectroscopic and scientific applications requiring high precision.