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Related Concept Videos

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...

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Related Experiment Video

Updated: Jun 20, 2026

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
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Published on: November 22, 2019

Acousto-optic mode-locked soliton laser.

J F Pinto, C P Yakymyshyn, C R Pollock

    Optics Letters
    |September 12, 2009
    PubMed
    Summary

    A novel acousto-optic modulator actively mode-locks a KCl:Tl color-center laser, producing 6 picosecond pulses. This development enables a stable soliton laser with performance comparable to existing synchronous pumping methods.

    Area of Science:

    • Optics and Photonics
    • Laser Physics

    Background:

    • Mode-locking is crucial for generating ultrashort laser pulses.
    • Color-center lasers offer tunable output in the infrared spectrum.
    • Soliton lasers provide stable pulse characteristics.

    Purpose of the Study:

    • To actively mode-lock a KCl:Tl color-center laser using an acousto-optic modulator.
    • To investigate the generation of ultrashort, transform-limited pulses.
    • To develop a stable soliton laser based on the mode-locked system.

    Main Methods:

    • Utilized an acousto-optic modulator for active mode-locking.
    • Employed a KCl:Tl color-center laser system.
    • Characterized pulse duration and quality.

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    Published on: November 22, 2019

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    Published on: December 15, 2021

    Main Results:

    • Achieved active mode-locking of the KCl:Tl laser at 1.5 micrometers.
    • Generated transform-limited pulses as short as 6 picoseconds.
    • Demonstrated a stable soliton laser operation with performance rivaling synchronously pumped systems.

    Conclusions:

    • Active mode-locking with an acousto-optic modulator is effective for KCl:Tl lasers.
    • The developed system provides a stable platform for soliton laser operation.
    • This method offers a viable alternative to synchronous pumping for soliton laser generation.