一种用于多模四波混频过程的高效方法。

Kwaśny Michał, Mergo Paweł, Napierała Marek, Markiewicz Krzysztof, Laudyn Urszula A

Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland.

Laboratory of Optical Fiber Technology, Maria Curie-Sklodowska University, pl. M. Curie-Sklodowskiej 3, 20-031 Lublin, Poland.

Materials (Basel). 2022 Jun 28;15(13):4550. doi: 10.3390/ma15134550.

We demonstrate a partially degenerated intermodal four-wave mixing (FWM) process realized in a few-mode nonlinear optical fiber, leading to the effective generation of visible red and blue light from 532 nm sub-nanosecond pulses. We present a self-seeded FWM configuration with a signal beam obtained in the additional section of the same type of fiber that ensures perfect matching between the seed and the Stokes beams. Over 40% of the wavelength conversion efficiency in the FWM process was obtained using a fiber length shorter than 1 m.

我们展示了在少模非线性光纤中实现的部分简并的级联四波混频（FWM）过程，该过程能有效地从532 nm亚纳秒脉冲产生可见红光和蓝光。我们提出了一种自种子FWM配置，其信号光束在同类型光纤的附加段中获得，可确保种子光束和斯托克斯光束之间的完美匹配。使用长度小于1 m的光纤，在FWM过程中获得了超过40%的波长转换效率。