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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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Tunable pulse dynamics in a spun fiber filter-assisted ultrafast laser
Optics Express
|November 11, 2025
Summary
Researchers developed a novel ultrafast fiber laser with tunable wavelengths and dual-wavelength output. This versatile laser offers femtosecond pulses for advanced applications like dual-comb spectroscopy and nonlinear dynamics research.
Area of Science:
- Photonics and Optical Engineering
- Nonlinear Optics
- Laser Physics
Background:
- Mode-locked lasers are crucial for scientific research and industrial optics.
- Tunable and dual-wavelength lasers offer enhanced functionality for specific applications.
- Ultrafast lasers provide high peak power and short pulse durations essential for precision measurements.
Purpose of the Study:
- To present a novel spun fiber filter-assisted ultrafast laser.
- To demonstrate tunable pulse dynamics and dual-wavelength operation.
- To explore applications in spectroscopy, sensing, and nonlinear dynamics.
Main Methods:
- Utilized a hybrid mode-locking and pulse-picking technique.
- Employed a spun fiber filter for wavelength tunability.
- Investigated polarization adjustment for wavelength control.
Main Results:
- Achieved femtosecond ultrashort pulses with a tunable wavelength range of 21.9 nm.
- Demonstrated three distinct dual-wavelength dichroic pulse dynamics.
- Observed dual-wavelength single-soliton states and soliton molecule bound states.
Conclusions:
- The developed fiber laser is a versatile ultrashort pulsed light source.
- The system supports complex nonlinear dynamics in polychromatic regimes.
- Potential applications include dual-comb spectroscopy and high-precision sensing.
