研究目的
Investigating the peak-power-clamping effect in a polarization-maintaining Q-switched mode locking fiber laser and its potential to achieve ultra-high pulse energy.
研究成果
The research successfully observes the PPC effect in a PM Yb-doped fiber laser with Q-switching or QML output, enriching the understanding of PPC for pulsed lasers from Q-switching to mode-locking. The findings suggest that PPC can be a general nonlinear effect in pulsed fiber lasers, with potential for achieving ultra-high pulse energy.
研究不足
The output efficiency is relatively low due to the configuration of the optical coupler and additional losses from the hybrid component. The study focuses on the mechanism of PPC phenomenon rather than high-power generation.
1：Experimental Design and Method Selection:
The study employs a compact and stable all-PM fiber laser configuration to investigate the PPC effect in Q-switched and QML states.
2：Sample Selection and Data Sources:
A commercial transmission-type semiconductor saturable absorber (SESA) and a 976-nm laser diode are used as key components.
3：List of Experimental Equipment and Materials:
Includes a PM Ytterbium-doped fiber (YDF), isolator, optical coupler (OC), optical spectrum analyzer (OSA), real-time oscilloscope (OSC), and signal source analyzer.
4：Experimental Procedures and Operational Workflow:
The pump power is incrementally increased to observe transitions between normal Q-switching, PPC Q-switching, and PPC QML states.
5：Data Analysis Methods:
Temporal and spectral analyses are performed to characterize the laser output states.
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