Bednyakova Anastasia, Khudozhitkova Daria, Turitsyn Sergei
Novosibirsk State University, 1 Pirogova str., Novosibirsk, 630090, Russia.
Aston Institute of Photonic Technologies, Aston University, Birmingham, B4 7ET, UK.
Sci Rep. 2022 Aug 13;12(1):13799. doi: 10.1038/s41598-022-17796-7.
We examine spectral properties of radiation in the pulsed fiber lasers using the semiconductor optical amplifier (SOA) as the gain medium. The complex light dynamics that result from the interplay between the fiber propagation effects in the cavity, the nonlinear effects in the SOA and spectral filtering, shift the generated radiation from the central wavelength of the filter. The resulting wavelength of the output radiation depends on the SOA pump power and the bandwidth of the intracavity filter. This offers the possibility of a spectral tunability of the generated pulses through nonlinear dynamics rather than the conventional use of a tunable filter.
我们使用半导体光放大器（SOA）作为增益介质来研究脉冲光纤激光器中辐射的光谱特性。腔内光纤传播效应、SOA中的非线性效应以及光谱滤波之间的相互作用所导致的复杂光动力学，使产生的辐射偏离滤波器的中心波长。输出辐射的最终波长取决于SOA泵浦功率和腔内滤波器的带宽。这提供了通过非线性动力学而非传统使用可调谐滤波器来实现所产生脉冲光谱可调谐性的可能性。
