研究目的
Investigating the use of GaSe saturable absorber for mode-locked Yb-doped fiber laser at 1.04 μm.
研究成果
GaSe SAs fabricated by liquid phase stripping method exhibit good saturable absorption properties and are effective for mode-locking in dispersion-managed soliton fiber lasers, achieving a repetition rate of 42 MHz, pulse width of 8 ps, and output power of 0.19 W at 7 W pump power.
研究不足
The study is limited to the use of GaSe SAs in dispersion-managed soliton mode-locked fiber lasers and does not explore other potential applications or materials.
1：Experimental Design and Method Selection:
The study involves the fabrication of GaSe saturable absorbers (SAs) using liquid phase stripping method and their application in a dispersion-managed soliton mode-locked fiber laser.
2：Sample Selection and Data Sources:
GaSe nanosheets were prepared and characterized using Raman spectrometer, AFM, SEM, and terahertz spectrum.
3：List of Experimental Equipment and Materials:
Equipment includes a 976 nm fiber-coupled laser diode, photonic crystal fiber, and a reflective diffraction grating pair. Materials include GaSe powder and PVA.
4：Experimental Procedures and Operational Workflow:
The GaSe SA was inserted into a laser cavity to achieve mode-locked operation. The output was analyzed for pulse trains, spectrum, and waveform.
5：Data Analysis Methods:
The output characteristics were measured using a spectrum analyzer and autocorrelation instrument.
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