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Nonlinear pulse compression to 43 W GW-class few-cycle pulses at 2 μm wavelength
Optics Letters
|October 14, 2017
Summary
We achieved intense few-cycle laser pulses beyond the near-infrared using nonlinear pulse compression. This breakthrough enables next-generation high-flux strong-field experiments with enhanced laser capabilities.
Area of Science:
- Laser Physics
- Ultrafast Optics
- Strong-Field Physics
Background:
- High-average power laser sources delivering intense few-cycle pulses are crucial for advanced strong-field experiments.
- Existing laser systems often face limitations in generating such pulses in specific wavelength regions.
Purpose of the Study:
- To develop and demonstrate a method for nonlinear pulse compression to generate high-energy, few-cycle pulses beyond the near-infrared.
- To achieve high average power and peak power for advanced experimental applications.
Main Methods:
- Utilized a high-repetition-rate ultrafast thulium-doped fiber laser system.
- Employed nonlinear pulse compression techniques within a gas-filled antiresonant hollow-core fiber.
Main Results:
- Successfully compressed laser pulses to 34.4 μJ with 2.1 cycles.
- Achieved a peak power of 1.4 GW at a central wavelength of 1.82 μm.
- Reached an average power of 43 W, demonstrating significant performance.
Conclusions:
- The combination of a thulium-doped fiber laser and gas-filled hollow-core fiber is effective for generating intense few-cycle pulses.
- This achievement paves the way for next-generation high-flux strong-field experiments requiring advanced laser parameters.
