期刊
LASER PHYSICS
卷 33, 期 12, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1555-6611/ad00a8
关键词
Q-switching; saturable absorber; pulsed fiber laser; passive technique; MAX phase
A self-induced Q-switched erbium-doped fiber laser operating at 1563 nm was achieved by integrating a passive modulator based on tantalum aluminum carbide (Ta2AlC) MAX phase film embedded into polyynyl alcohol. The laser produced stable pulses with excellent signal quality, and reached maximum average output power, pulse energy, and peak power within a specific pump power range.
A self-induced Q-switched erbium-doped fiber laser operating at 1563 nm was achieved by integrating a passive modulator based on tantalum aluminum carbide (Ta2AlC) MAX phase film embedded into polyynyl alcohol. The modulator, serving as a saturable absorber (SA), established a modulation depth of 9% and a saturation intensity of 0.3 MW cm-2. Upon integration of the film SA, a stable Q-switched fiber laser was obtained, generating pulses with a minimum width of 7.6 mu s at a repetition rate of 45.1 kHz, within a pump power range of 24.9-59.7 mW. The corresponding maximum average output power, maximum pulse energy, and highest peak power were determined at 1.6 mW, 36.2 nJ, and 4.7 mW, respectively. The RF fundamental spectrum exhibited a good signal-to-noise ratio of 61 dB, indicating excellent pulse signal quality. This demonstration of Ta2AlC MAX phase film Q-switched laser may open promising possibilities for scientific applications such as material processing.
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