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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
Mode-locked Yb-doped Bragg fiber laser.
Caroline Lecaplain1, Ammar Hideur, Sébastien Février
1CNRS UMR 6614 CORIA, Avenue de l'Université, BP 12, 76801 Saint Etienne du Rouvray, France.
Optics Letters
|September 17, 2009
Summary
We developed a mode-locked fiber laser using Yb-doped large-mode-area Bragg fiber for dissipative-soliton pulse shaping. This laser reliably generates high-energy, ultrashort pulses, enabling advanced applications.
Area of Science:
- Optics and Photonics
- Laser Physics
- Materials Science
Background:
- Mode-locked fiber lasers are crucial for generating ultrashort optical pulses.
- Dissipative-soliton dynamics offer a pathway to high-energy pulse generation in lasers.
- Large-mode-area (LMA) fibers are essential for mitigating nonlinear effects and increasing output power.
Purpose of the Study:
- To demonstrate a novel mode-locked fiber laser design utilizing Yb-doped LMA Bragg fiber.
- To investigate the potential of dissipative-soliton pulse shaping for high-energy pulse generation.
- To achieve reliable self-starting mode-locking and characterize the laser output.
Main Methods:
- Employing an Yb-doped large-mode-area Bragg fiber as the gain medium.
- Utilizing a semiconductor saturable absorber mirror (SESAM) for self-starting mode-locking.
- Implementing dissipative-soliton pulse shaping mechanisms within the laser cavity.
- External compression of the generated chirped pulses.
Main Results:
- Achieved reliable self-starting mode-locking with a SESAM.
- Generated 30 nJ chirped pulses at a 17 MHz repetition rate.
- Obtained an average output power of 510 mW.
- Compressed the 3.2 ps output pulses to 440 fs.
Conclusions:
- The developed Yb-doped LMA Bragg fiber laser effectively utilizes dissipative-soliton dynamics.
- The laser provides a robust platform for generating high-energy, ultrashort optical pulses.
- The results demonstrate the feasibility of this laser design for various scientific and technological applications.
