Related Experiment Video
Updated: May 8, 2026
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
High-power high-repetition-rate subpicosecond monolithic Yb:KGW laser with self-mode locking
W Z Zhuang1, M T Chang, H C Liang
1Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan.
This study presents a high-power ytterbium-doped potassium gadolinium tungstate (Yb:KGW) laser. Researchers achieved subpicosecond pulses at a 22.4 GHz repetition rate, demonstrating efficient optical conversion.
Area of Science:
- Laser physics
- Materials science
Background:
- Mode-locked lasers are crucial for various scientific and industrial applications.
- Yb:KGW is a promising gain medium for solid-state lasers.
Purpose of the Study:
- To develop a high-power, monolithic, self-mode-locked Yb:KGW laser.
- To investigate the influence of crystal length on laser performance.
Main Methods:
- Utilized a monolithic Yb:KGW crystal for self-mode-locking.
- Varied the laser crystal length to optimize pulse characteristics.
- Employed a coated Yb:KGW crystal of 3.36 mm length.
Main Results:
- Achieved subpicosecond pulses with a duration of 850 fs.
- Demonstrated a pulse repetition rate of 22.4 GHz.
- Obtained an average output power of 3.6 W with 34.3% optical conversion efficiency.
Conclusions:
- Laser crystal length significantly impacts repetition rate and pulse width.
- The developed Yb:KGW laser offers high power and high repetition rate capabilities.
- This laser system shows potential for applications requiring high-energy ultrashort pulses.
More Related Videos
08:48Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
14:18Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
Published on: February 28, 2016