Astigmatism-controlled beam shaping for high-quality fibre Bragg grating inscription using femtosecond laser
We present an astigmatism-controlled beam-shaping technique for femtosecond laser inscription of FBGs, optimizing beam profiles using a cylindrical lens to mitigate focal distortion and enhance grating quality. This method improves reflectivity, reduces insertion losses, and expands grating dimensions, offering a scalable solution for advanced optical communication and sensing.
Authors
- Kaiming Zhou (ORCID: https://orcid.org/0000-0002-6011-1912)
- Lukman Hakim Kamarudin
- Jiaxuan Li (ORCID: https://orcid.org/0000-0001-9592-4190)
- Bing Sun (ORCID: https://orcid.org/0000-0001-8794-4853)
- Yuehui Ma
Institutions
- Shanghai University (CN)
- Aston University (GB)
- Yanshan University (CN)
- Nanjing University of Posts and Telecommunications (CN)
Publication Details
- Published
- 2025-05-22
- DOI
- https://doi.org/10.1117/12.3061292
- Primary Topic
- Advanced Fiber Optic Sensors
- Type
- article
- Field-Weighted Citation Impact
- 0.00