Tilted Fiber Bragg Grating-Based Few-Mode Fabry-Perot Filter for Mode Conversion

Citation

M. Tang, H. Li, Z. Bai, M. Cao, Y. Mi, W. Ren, and G. Ren, "Tilted Fiber Bragg Grating-Based Few-Mode Fabry-Perot Filter for Mode Conversion," IEEE Photonics Technology Letters, Mar. 2021, doi: 10.1109/LPT.2021.3067165.

Keywords

• Tilted fiber Bragg grating
• Fabry-Perot filter
• mode converter
• narrow-bandwidth

Brief

The article proposes and experimentally demonstrates a narrow-bandwidth few-mode Fabry-Perot filter based on tilted fiber Bragg gratings (TFBGs) written in a ring-core fiber, where the TFBGs simultaneously function as the reflecting mirrors and mode converters to realize the conversion of vector modes at specific wavelengths.

Summary

The paper presents a compact few-mode Fabry-Perot filter made with tilted fiber Bragg gratings (TFBGs) in a ring-core fiber. These TFBGs act as both mirrors for the filter and mode converters. This allows for narrow-bandwidth output and efficient conversion of vector modes at specific wavelengths, useful for things like fiber lasers and multiplexing systems.

Origin: https://sci.bban.top/pdf/10.1109/lpt.2021.3067165.pdf#