研究目的
Investigating the self-mode-locked (SML) operation in Er-doped fluoride fiber lasers emitting at 2.8 μm, focusing on the generation of dark pulses and the effect of external feedback distance on the laser's performance.
研究成果
The SML fiber laser based on Er-doped fluoride fiber emitting at 2.8 μm was successfully achieved, demonstrating the generation of dark pulses. The study revealed that both the cavity length and the interaction between internal and external cavities significantly influence the SML operation. Adjusting the external feedback distance can control the fundamental cavity repetition rate, offering insights into optimizing SML fiber lasers.
研究不足
The study highlights the susceptibility of the laser to the interaction between internal and external cavities, which can affect the stability and performance of the SML operation. The effect of feedback distance and pump power on the laser's characteristics also presents potential areas for optimization.