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64-fs ultrashort pulse generation from a Kerr-lens mode-locked (Yb0.058Sc0.508Y0.434)2O3 ceramic laser
Optics Letters
|December 15, 2025
Summary
Researchers developed a novel femtosecond laser using a mixed sesquioxide ceramic (Yb:YScO3) gain medium. This breakthrough achieves 64 fs pulses, marking a significant advancement in Yb-doped ceramic laser technology.
Area of Science:
- Materials Science
- Laser Physics
- Optoelectronics
Background:
- Mixed sesquioxide ceramics offer unique optical properties for laser applications.
- Femtosecond laser technology requires advanced gain media for high performance.
Purpose of the Study:
- To investigate the potential of mixed sesquioxide ceramic (Yb:YScO3) as a gain medium for femtosecond laser generation.
- To achieve stable femtosecond laser operation with high output power and short pulse duration.
Main Methods:
- Utilized Kerr-lens mode-locking technique.
- Employed a high-brightness diode laser for pumping the Yb:YScO3 ceramic sample.
Main Results:
- Successfully generated a stable femtosecond pulsed laser.
- Achieved a pulse duration of 64 fs.
- Obtained an average output power exceeding 100 mW at a peak wavelength of 1046 nm.
Conclusions:
- Mixed sesquioxide ceramic (Yb:YScO3) is a viable and effective gain medium for femtosecond laser generation.
- This study presents the first report of femtosecond operation using this specific ceramic, achieving one of the shortest pulse durations for Yb-doped ceramic mode-locked lasers.
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