研究目的
To investigate the application of MXene Ti3C2Tx as a saturable absorber in achieving high-repetition-rate ultrafast pulses in fiber lasers.
研究成果
The research demonstrates that MXene Ti3C2Tx can be used as an effective saturable absorber to achieve high-repetition-rate harmonic mode-locking in fiber lasers, opening new avenues for advanced nonlinear photonics applications.
研究不足
The study is limited by the signal-to-noise ratio of the pulse and the potential influence of spectral modulation, high-order group velocity dispersion, and self-phase modulation on the pulse.
1：Experimental Design and Method Selection:
The study involves the fabrication of MXene Ti3C2Tx saturable absorber (SA) based on micro-fiber using the optical deposition method and its application in a ring fiber laser to achieve harmonic mode-locking.
2：Sample Selection and Data Sources:
MXene Ti3C2Tx suspension is prepared by HF etching, and thin films are prepared by liquid-phase exfoliation method.
3：List of Experimental Equipment and Materials:
Includes a 980-nm laser diode as a pumped source, erbium-doped fiber as gain medium, polarization-independent isolator, single-mode fiber, polarization controller, and output coupler.
4：Experimental Procedures and Operational Workflow:
The setup involves adjusting the pump power and polarization state to achieve mode-locking. The output pulse characterization is measured using a digital oscilloscope, spectrometer, radio frequency spectrum analyzer, and autocorrelator.
5：Data Analysis Methods:
The study analyzes the optical spectrum, pulse interval, RF spectrum, and autocorrelation trace to determine the characteristics of the mode-locked laser.
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