研究目的
Investigating the generation of flat-top Q-switched envelope dissipative soliton resonance pulse in a passively mode-locked fiber laser.
研究成果
The research successfully demonstrates the generation of continuous dissipative soliton resonance and flat-top Q-switched mode-locked square-wave pulses in an erbium-doped fiber laser. The flat-top Q-switched mode-locked operation, influenced by the peak power clamping effect, provides a stable and controllable output with potential applications in material processing and laser ablation.
研究不足
The study is limited by the technical constraints of the experimental setup, including the maximum pump power of 363 mW and the specific characteristics of the optical components used. Potential areas for optimization include increasing the pump power and exploring different configurations of the laser cavity.
1：Experimental Design and Method Selection:
The experiment utilizes an erbium-doped fiber laser based on the nonlinear amplifying loop mirror mechanism to generate a stable phenomenon of flat-top Q-switched mode-locked dissipative soliton resonance pulse.
2：Sample Selection and Data Sources:
The laser resonator includes a segment of 3 m single-mode erbium-doped fiber and a 23 m-long highly nonlinear fiber.
3：List of Experimental Equipment and Materials:
Equipment includes a 980 nm laser diode pump, wavelength division multiplexer, polarization-independent isolator, polarization controller, optical coupler, optical spectrum analyzer, photo detector, oscilloscope, and radio frequency spectrum analyzer.
4：Experimental Procedures and Operational Workflow:
The laser is pumped to generate mode-locked pulses, and the characteristics of the pulses are analyzed under varying pump powers.
5：Data Analysis Methods:
The output pulses are analyzed using an optical spectrum analyzer, oscilloscope, and radio frequency spectrum analyzer to study their spectral and temporal characteristics.
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