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Updated: May 9, 2025
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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
7.5K
Few-mode energy-managed soliton fiber laser.
Optics Letters
|May 1, 2025
Summary
This study introduces a hybrid fiber laser for high-energy pulse generation. The novel all-anomalous laser architecture offers adjustable pulse duration and high peak power, demonstrating scalable soliton laser technology.
Area of Science:
- Physics
- Optics
- Laser Technology
Background:
- Mode-locked fiber lasers are crucial for generating ultrashort pulses.
- Achieving high-energy dissipative solitons in the anomalous dispersion regime presents challenges.
Purpose of the Study:
- To develop an all-anomalous mode-locked laser architecture.
- To demonstrate the generation of high-energy pulses with adjustable duration using a hybrid fiber design.
Main Methods:
- A hybrid fiber laser architecture combining few-mode and single-mode passive fibers was designed.
- An intracavity spectral filter was employed to control pulse characteristics.
- Laser performance was evaluated at different filter bandwidths (1.7 nm and 12 nm).
Main Results:
- The laser delivered 2.5-ps pulses with 39-nJ energy and 15.6-kW peak power at a 1.7-nm filter bandwidth.
- At a 12-nm filter bandwidth, nearly Fourier-transform limited 230-fs soliton pulses with 2.1-nJ pulse energy and 9-kW peak power were achieved.
- The system demonstrated adjustable pulse duration and high pulse energy.
Conclusions:
- The all-anomalous mode-locked laser architecture is scalable and flexible.
- The energy-managed soliton laser approach effectively generates high-energy dissipative solitons in the anomalous dispersion regime.
- This technology offers tunable pulse durations for various applications.
