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5-fs, Multi-mJ, CEP-locked parametric chirped-pulse amplifier pumped by a 450-nm source at 1 kHz
1Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan. adachi@issp.u-tokyo.ac.jp
Optics Express
|September 17, 2008
Summary
Researchers developed a novel optical parametric chirped-pulse amplifier. This ultrashort pulse amplifier achieves 5.5-fs duration and 2.7-mJ energy with phase control.
Area of Science:
- Ultrafast optics
- Laser science
- Nonlinear optics
Background:
- Ultrashort pulse generation is crucial for advanced scientific research.
- Optical parametric amplifiers (OPAs) offer versatile wavelength tunability.
- Achieving femtosecond pulse durations with high energy and phase stability remains a challenge.
Purpose of the Study:
- To develop a high-repetition-rate optical parametric chirped-pulse amplifier (OPCPA).
- To achieve ultrashort pulse durations with high pulse energy and carrier-envelope phase control.
Main Methods:
- Utilized a 1-kHz repetition rate system.
- Employed a frequency-doubled Ti:sapphire laser at 450 nm for pumping.
- Implemented an optical parametric amplification scheme for chirped pulses.
Main Results:
- Demonstrated a 5.5-fs pulse duration.
- Achieved a pulse energy of 2.7 mJ.
- Successfully implemented carrier-envelope phase control.
Conclusions:
- The developed OPCPA system provides a powerful tool for ultrafast science.
- This technology enables new possibilities in high-field physics and nonlinear spectroscopy.
- The system's performance advances the state-of-the-art in ultrashort pulse generation.
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