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Related Experiment Videos

Supercontinuum and gas cell in a single microstructured fiber.

T Ritari1, G Genty, H Ludvigsen

  • 1Fiber-Optics Group, Department of Electrical and Communications Engineering, Helsinki University of Technology, P.O. Box 3500, FI-02015 TKK, Finland.

Optics Letters
|January 5, 2006
PubMed
Summary

Researchers created a novel broadband light source within a single microstructured fiber, combining a laser and gas cell. This integrated system offers versatile applications for various gases and wavelengths.

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Area of Science:

  • Nonlinear optics
  • Fiber optics
  • Spectroscopy

Background:

  • Microstructured fibers offer unique optical properties due to their holey structure and high nonlinearity.
  • Integrating broadband light sources with gas cells is crucial for various spectroscopic applications.

Purpose of the Study:

  • To combine a broadband light source and a gas cell into a single microstructured fiber.
  • To evaluate the performance of different microstructured fibers as nonlinear and host media.
  • To demonstrate a self-referenced supercontinuum generation for spectroscopic applications.

Main Methods:

  • Utilizing the high nonlinearity and holey structure of microstructured fibers.
  • Launching nanosecond pulses from a Q-switched Nd:YAG laser into acetylene-filled microstructured fibers.

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  • Generating a broadband supercontinuum and self-referencing it to acetylene absorption lines.

    • Main Results:

    • A broadband supercontinuum was successfully generated within the microstructured fiber.
    • The supercontinuum was self-referenced to acetylene lines in the 1500 nm region.
    • Different index-guiding narrow-core microstructured fibers were evaluated for their performance.

    Conclusions:

    • The integrated concept of a broadband light source and gas cell in a single microstructured fiber is feasible.
    • This approach offers a versatile platform for various spectroscopic applications with different gases and wavelengths.
    • Microstructured fibers are effective nonlinear and host media for supercontinuum generation and gas sensing.