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Related Experiment Videos

Ytterbium gain band self-induced modulation instability laser.

R E Kennedy1, S V Popov, J R Taylor

  • 1Femtosecond Optics Group, Department of Physics, Imperial College, London, UK. richard.kennedy@imperial.ac.uk

Optics Letters
|January 31, 2006
PubMed
Summary

We developed a novel ytterbium laser using self-induced modulation instability. This fiber laser generates a 40 GHz pulse train with 4 picosecond pulses at 1064 nm, ideal for nonlinear optics.

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Area of Science:

  • Optics and Photonics
  • Laser Physics
  • Nonlinear Fiber Optics

Background:

  • Mode-locked fiber lasers are crucial for generating ultrashort pulses.
  • Nonlinear optical phenomena, such as modulation instability, offer pathways to novel laser dynamics.
  • Ytterbium-doped fiber lasers provide gain in the 1-micron spectral region, suitable for various applications.

Purpose of the Study:

  • To demonstrate a new ytterbium gain band laser.
  • To utilize self-induced modulation instability for ultrashort pulse generation.
  • To create a compact, all-fiber integrated light source.

Main Methods:

  • Employing a highly nonlinear holey fiber to engineer anomalous dispersion.
  • Utilizing ytterbium gain to achieve lasing at 1064 nm.

Related Experiment Videos

  • Operating the laser in a regime that supports bright soliton formation via modulation instability.

    • Main Results:

    • Successfully demonstrated an ytterbium gain band laser.
    • Achieved self-induced modulation instability leading to bright soliton generation.
    • Generated a 40 GHz pulse train with pulse durations of 4 picoseconds.
    • Operated at a wavelength of 1064 nm.

    Conclusions:

    • The developed laser is a robust, all-fiber integrated source.
    • Self-induced modulation instability in nonlinear fiber is an effective method for generating high-repetition-rate ultrashort pulses.
    • The laser's performance makes it suitable for applications requiring high-power, picosecond pulses at 1 micron.