研究目的
Investigating the performance of an all-fiber passively mode-locked Tm-Ho co-doped fiber laser based on a GaAs saturable absorber at 1875.2 nm.
研究成果
The study successfully demonstrates an all-fiber passively mode-locked Tm-Ho co-doped fiber laser at 1875.2 nm with a GaAs saturable absorber, achieving 1.13 MHz, 634 ps, and 25 nJ pulses. The observed QML, FRR, and SHRR operations provide insights into the soliton pulse energy quantization effect and self-phase modulation.
研究不足
The study is limited by the specific setup and materials used, such as the GaAs saturable absorber and the Tm-Ho co-doped fiber. The findings may not be directly applicable to other configurations or materials.
1：Experimental Design and Method Selection:
The study employs a Tm-Ho co-doped fiber laser setup with a GaAs saturable absorber to achieve mode-locking. The design rationale focuses on generating low repetition rate, high energy pulses.
2：Sample Selection and Data Sources:
The gain fiber is a 1.1 m Tm-Ho co-doped fiber (TH512, From CorActive), pumped by a 1570 nm semiconductor laser.
3：1 m Tm-Ho co-doped fiber (TH512, From CorActive), pumped by a 1570 nm semiconductor laser. List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: Includes a wavelength division multiplexer (WDM), isolator (ISO), fiber optical coupler (OC), GaAs saturable absorber (SA), single-mode fiber (SMF-28e), photodetector (ET-5000 F), oscilloscope (Tektronix DPO73304D), and spectrum analyzer (YOKOGAWA AQ6375).
4：5). Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The setup involves pumping the gain fiber, ensuring unidirectional operation with an isolator, and extracting the laser output through a coupler. The output characteristics are monitored and analyzed.
5：Data Analysis Methods:
The output pulse trains and spectrum are analyzed to determine the laser's performance characteristics.
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