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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
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Wavelength tuning of fiber lasers using multimode interference effects.

R Selvas, I Torres-Gomez, A Martinez-Rios

    Optics Express
    |June 9, 2009
    PubMed
    Summary

    We developed a cost-effective tunable fiber laser using a novel re-imaging technique. This simple, compact laser offers wavelength tuning and 500 mW output power, making it ideal for various applications.

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    Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

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    Area of Science:

    • Photonics and Laser Technology
    • Optical Engineering
    • Fiber Optics

    Background:

    • Developing tunable fiber lasers is crucial for applications requiring precise wavelength control.
    • Existing tunable laser systems can be complex and expensive, limiting their widespread adoption.
    • A need exists for simple, compact, and cost-effective tunable fiber laser solutions.

    Purpose of the Study:

    • To introduce a novel and straightforward method for fabricating a tunable fiber laser.
    • To demonstrate a cost-effective and compact design for a tunable fiber laser system.
    • To achieve wavelength tunability and significant output power using a simple optical setup.

    Main Methods:

    • Fabrication involved splicing single-mode fiber to active double-clad fiber and a short multimode fiber section.
    • Utilized the wavelength-dependent re-imaging property of multimode fiber for spectral control.
    • Employed a broadband mirror for retroreflection, with distance adjustment enabling wavelength tuning.

    Main Results:

    • Achieved a tunable fiber laser with a tunability range of 8 nm (1088-1097 nm).
    • Demonstrated a substantial output power of 500 mW.
    • The laser system exhibited a simple, compact, and cost-effective design.

    Conclusions:

    • The novel re-imaging scheme provides an effective method for creating tunable fiber lasers.
    • The demonstrated tunable fiber laser is simple, compact, and cost-effective.
    • This approach offers a promising solution for applications requiring accessible wavelength-tunable laser sources.