研究目的
Investigating the application of few-layer graphdiyne (GDY) as a saturable absorber (SA) in an erbium-doped hybrid mode-locked fiber laser for ultrashort pulse generation.
研究成果
The hybrid erbium-doped fiber mode-locked laser based on GDY-SA and NPR technology successfully reduced the output pulse width to 690.2 fs, demonstrating GDY's potential as an excellent optical modulation material in ultrafast photonics.
研究不足
The study is limited by the maximum power threshold of the LD, and the actual threshold for mode-locking might be higher. The stability and long-term performance of GDY-SA under continuous illumination need further investigation.
1:Experimental Design and Method Selection:
The study employs a hybrid mode-locked fiber laser combining non-linear polarization rotation (NPR) technology and GDY-SA.
2:Sample Selection and Data Sources:
GDY-SA thin films were prepared by spin-coating method.
3:List of Experimental Equipment and Materials:
Includes a lasing diode (LD), wavelength division multiplexing (WDM), single-mode fiber (SMF), erbium-doped fiber (EDF), polarization controller (PC), polarization dependent isolator (PD-ISO), and optical coupler (OC).
4:Experimental Procedures and Operational Workflow:
The setup involves increasing the pump power to achieve stable mode-locked pulse output, adjusting the PC, and measuring output characteristics.
5:Data Analysis Methods:
Output spectrum, pulse trace, RF spectrum, and autocorrelation trace were analyzed to determine laser performance.
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