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Related Experiment Video

Updated: Jul 14, 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

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All-fiber mode-locked fiber laser.

Carsten Krogh Nielsen1, Søren Rud Keiding

  • 1Department of Physics, University of Aarhus, DK-8000 Aarhus C, Denmark. ckn@phys.au.dk

Optics Letters
|June 5, 2007
PubMed
Summary

This study demonstrates a self-starting, environmentally stable mode-locked fiber laser using nonlinear polarization rotation. The novel all-fiber configuration enables efficient supercontinuum generation without free-space optics.

Area of Science:

  • Optics and Photonics
  • Fiber Lasers
  • Nonlinear Optics

Background:

  • Mode-locked fiber lasers are crucial for various applications.
  • Achieving environmental stability and self-starting operation in fiber lasers remains a challenge.
  • Nonlinear polarization rotation is a known technique for mode-locking.

Purpose of the Study:

  • To experimentally demonstrate an environmentally stable mode-locked fiber laser.
  • To present a novel laser configuration for improved performance and all-fiber implementation.
  • To showcase the application of this laser for supercontinuum generation.

Main Methods:

  • Utilized nonlinear polarization rotation for mode-locking.
  • Designed a novel laser cavity with negligible low-power reflectivity and no continuous-wave (CW) gain.

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Last Updated: Jul 14, 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

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
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Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

  • Implemented the configuration using standard polarization-maintaining fiber-pigtailed components for an all-fiber system.

    • Main Results:

    • Achieved a self-starting, environmentally stable mode-locked fiber laser.
    • Obtained a pulse duration of 5.6 picoseconds (ps) at a repetition rate of 5.96 megahertz (MHz).
    • Demonstrated an average output power of 8 milliwatts (mW) and generated 213 mW of supercontinuum spanning 600-1750 nm.

    Conclusions:

    • The novel fiber laser configuration is robust and self-starting.
    • The all-fiber design simplifies implementation and enhances environmental stability.
    • The laser system is effective for generating broad supercontinuum spectra without free-space optics.