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Related Experiment Video

Updated: Jul 4, 2026

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
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29 W High power CW supercontinuum source.

B A Cumberland1, J C Travers, S V Popov

  • 1Femtosecond Optics Group, Imperial College London, London, SW7 2AZ, United Kingdom. b.cumberland@imperial.ac.uk

Optics Express
|June 11, 2008
PubMed
Summary
This summary is machine-generated.

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Researchers generated a 29 W CW supercontinuum in photonic crystal fiber (PCF), achieving the highest spectral power density to date. This advancement extends the continuum beyond water absorption wavelengths.

Area of Science:

  • Optics and Photonics
  • Nonlinear Optics
  • Materials Science

Background:

  • Supercontinuum generation is crucial for various applications, including spectroscopy and optical communications.
  • Photonic Crystal Fibers (PCFs) offer unique dispersion properties for controlling light propagation.
  • Water absorption in the near-infrared region poses a challenge for supercontinuum generation.

Purpose of the Study:

  • To generate a high-power continuous wave (CW) supercontinuum.
  • To investigate supercontinuum generation in a short length of PCF with two zero dispersion wavelengths.
  • To analyze the impact of water loss and the second zero dispersion wavelength on continuum evolution.

Main Methods:

  • Utilizing a 29 W CW laser source.
  • Employing a short length of Photonic Crystal Fiber (PCF).

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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

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Last Updated: Jul 4, 2026

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Published on: May 27, 2013

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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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  • Conducting experimental and numerical studies of continuum dynamics.

    • Main Results:

    • Achieved a supercontinuum spanning 1.06 to 1.67 micrometers.
    • Obtained the highest spectral power density (>50 mW/nm up to 1.4 microm) reported to date.
    • Extended the supercontinuum beyond the 1.4 micrometer water loss region.

    Conclusions:

    • Short PCF lengths are effective for generating broad supercontinua.
    • The second zero dispersion wavelength plays a significant role in continuum shaping.
    • The study provides insights into overcoming water absorption limitations in supercontinuum generation.