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Few-cycle pulse generation by double-stage hybrid multi-pass multi-plate nonlinear pulse compression
Optics Letters
|February 15, 2023
Summary
We developed a compact laser setup that shortens picosecond pulses to 8.2 femtoseconds (fs). This 120-fold pulse duration reduction achieves higher peak power, enabling advanced applications in ultrafast science.
Area of Science:
- Laser physics
- Ultrafast science
- Nonlinear optics
Background:
- High average power lasers are crucial for photon-hungry applications.
- Picosecond lasers cannot directly generate sub-100-femtosecond (fs) pulses.
- Post-compression techniques are needed to achieve shorter pulse durations.
Purpose of the Study:
- To develop a compact and efficient method for generating ultrashort laser pulses.
- To significantly shorten pulse durations from picosecond lasers.
- To increase the peak power of laser pulses for advanced applications.
Main Methods:
- Utilizing a two-stage hybrid multi-pass, multi-plate compression setup.
- Employing spectral broadening and dispersion compensation.
- Starting with a 0.1-GW peak power, picosecond burst-mode laser source.
Main Results:
- Achieved a pulse duration of 8.2 femtoseconds (fs).
- Increased peak power to 2.9 GW.
- Demonstrated a 120-fold reduction in pulse duration.
Conclusions:
- The hybrid multi-pass approach enables unprecedented pulse shortening and peak power enhancement from bulk systems.
- This technique paves the way for compact, cost-efficient, high-repetition-rate attosecond sources.
- The developed method is a significant advancement for ultrafast dynamics studies and strong field applications.
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