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Rapid-scan acousto-optical delay line with 34 kHz scan rate and 15 as precision
O Schubert1, M Eisele, V Crozatier
1Department of Physics, University of Regensburg, Regensburg, Germany.
Optics Letters
|August 2, 2013
Summary
This study introduces an optical fast scan delay technique using ultrashort optical pulses and acoustic waves. The method achieves precise pulse delays up to 6 picoseconds with femtosecond resolution.
Area of Science:
- Optics and Photonics
- Ultrafast Science
- Acousto-Optics
Background:
- Precise control over ultrashort optical pulses is crucial for advanced scientific applications.
- Existing pulse delay techniques may lack the required speed, precision, or resolution for certain experiments.
Purpose of the Study:
- To introduce a novel optical fast scan delay scheme.
- To demonstrate high-precision and high-resolution temporal manipulation of femtosecond optical pulses.
Main Methods:
- Utilizing the near-collinear interaction between ultrashort optical pulses and acoustic waves.
- Employing a birefringent crystal for wave interaction.
- Integrating a femtosecond Er:fiber laser system.
Main Results:
- Achieved pulse delays of up to 6 picoseconds (ps) for few femtosecond pulses.
- Demonstrated a precision of 15 attoseconds (as).
- Obtained a resolution of 5 femtoseconds (fs) for single sweeps and 39 attoseconds (as) for multiple scans.
Conclusions:
- The developed optical fast scan delay scheme offers significant advancements in temporal control of ultrashort pulses.
- The technique provides high precision and resolution, suitable for demanding ultrafast experiments.
- The acousto-optic interaction in birefringent crystals presents a viable method for advanced optical delay generation.
