研究目的
Investigating the generation of sub-nanosecond, low-repetition-rate, passively mode-locked Tm-Ho co-doped fiber laser based on a GaAs saturable absorber.
研究成果
The sub-nanosecond, low-repetition-rate, and multiple-wavelength harmonic mode-locked Tm-Ho fiber laser can be regarded as a potential light source for medical treatment, laser measurement, and laser detection.
研究不足
Higher order of harmonic mode locking is limited by the damage threshold of the saturable absorber.
1：Experimental Design and Method Selection:
The experiment involves the design of an all-fiber sub-nanosecond passively mode-locked Tm-Ho co-doped fiber laser using a GaAs saturable absorber.
2：Sample Selection and Data Sources:
A
3：1-m Tm-Ho co-doped fiber (TH512, Coractive) is used as the laser gain medium. List of Experimental Equipment and Materials:
The setup includes a 1570-nm pump, a wavelength division multiplexer (WDM), a polarization insensitive isolator, a commercial GaAs saturable absorber (SA-2000-25-10 ps from Batop Company), a 10:90 output coupler, a polarization controller (PC), and
4：1-km single-mode fiber (SMF). Experimental Procedures and Operational Workflow:
The pump is injected into the ring cavity via the WDM. The PC adjusts the polarization state of the propagating light. The SMF is inserted to change the cavity length.
5：Data Analysis Methods:
The output power, pulse train, and spectrum are analyzed to characterize the laser performance.
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获取完整内容-
Tm-Ho co-doped fiber
TH512
Coractive
Used as laser gain medium in the fiber laser setup.
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GaAs saturable absorber
SA-2000-25-10 ps
Batop Company
Used to achieve mode-locking operation in the fiber laser.
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Single-mode fiber
SMF
Inserted into the cavity to change the cavity length and achieve low-repetition-rate operation.
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Polarization controller
PC
Used to adjust the polarization state of the propagating light in the fiber laser.
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Wavelength division multiplexer
WDM
Used to inject the pump into the ring cavity.
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