研究目的
Demonstrating the fine tuning of emission peak wavelength of Erbium-doped fiber laser (EDFL) based on the graphene oxide (GO)/PVA film.
研究成果
The study successfully demonstrated wide and continuous tunable mode-locked Erbium-doped fiber laser based on graphene oxide. The GO/PVA film allowed for fine tuning of the emission peak wavelength from 1546 nm to 1564 nm, with stable operation confirmed over three hours.
研究不足
The wavelength tuning range is limited to 1546 nm to 1564 nm. The stability of mode-locked pulses at extreme wavelengths needs further investigation.
1：Experimental Design and Method Selection:
The GO/PVA film was used as a saturable absorber in a ring cavity EDFL setup.
2：Sample Selection and Data Sources:
GO nano-platelet was produced by liquid phase exfoliation in DI water and mixed with PVA powder.
3：List of Experimental Equipment and Materials:
A 976 nm laser diode as a pump source, a 3 m long Erbium-doped fiber, an isolator, an in-line polarizer, and polarization controllers.
4：Experimental Procedures and Operational Workflow:
The GO/PVA film was sandwiched between two fiber end facets inside the ring cavity. Mode-locked pulses were achieved by adjusting the polarization controllers.
5：Data Analysis Methods:
The optical spectrum of the mode-locked pulses was monitored for stability and wavelength tuning.
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