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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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Distributed nonlinear fiber chirped-pulse amplifier system.

Marc Hanna1, Dimitris Papadopoulos, Frédéric Druon

  • 1Institut d'Optique, CNRS, Université Paris-Sud, Palaiseau, France. marc.hanna@institutoptique.fr

Optics Express
|June 25, 2009
PubMed
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This study presents a two-stage fiber laser system for generating high-energy femtosecond pulses. The novel approach achieves a record 20 microJ pulse energy with high temporal quality.

Area of Science:

  • Physics
  • Optics
  • Laser Technology

Background:

  • Fiber-based femtosecond laser systems are crucial for various scientific applications.
  • Chirped-pulse amplification (CPA) is a standard technique for high-energy pulse generation.
  • Gain narrowing can limit pulse quality in high-power amplification.

Purpose of the Study:

  • To develop a two-stage fiber-based femtosecond amplification system.
  • To compensate for gain narrowing using controlled self-phase modulation.
  • To achieve high pulse energy and high temporal quality.

Main Methods:

  • Utilized a two-stage chirped-pulse amplification (CPA) system.
  • Employed a highly nonlinear regime for amplification.
  • Adjusted self-phase modulation in each stage via stretching ratios.

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Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

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

Published on: February 28, 2016

Related Experiment Videos

Last Updated: Jun 22, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

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

Published on: February 28, 2016

  • Validated analytical design rules with numerical simulations.

    • Main Results:

    • Achieved generation of 20 microJ, 202 fs pulses.
    • Operated at a repetition rate of 200 kHz.
    • Demonstrated high temporal quality pulses at record energy levels for this duration.

    Conclusions:

    • The presented two-stage fiber amplification system effectively compensates for gain narrowing.
    • The system achieves state-of-the-art performance in terms of pulse energy and temporal quality.
    • This work advances the capabilities of fiber-based femtosecond laser sources.