This paper investigates optical properties of few-mode fiber with non-uniform refractive index, namely: the few mode fiber with U-shape refractive index and the two-mode and four-mode few-mode fiber with bent radius. Finite element method is used to analyze the mode distributions based on their non-uniform refractive index. Effective mode control can be achieved through these few mode fibers to achieve vector beam generation. Finally, reflection spectra of a few-mode fiber Bragg grating are calculated theoretically and then measured under different bending conditions. Experimental results are in good accordance with the theoretical ones. These few mode fibers show potential applications in generation of cylindrical vector beam both for optical lasing and sensing systems.
|Title of host publication||Advanced Laser Manufacturing Technology|
|Editors||Bingheng Lu, Huaming Wang|
|Place of Publication||Bellingham, WA (US)|
|Number of pages||7|
|Publication status||Published - 19 Oct 2016|
|Event||International Symposium on Advanced Laser Manufacturing Technology 2016 - Beijing, China|
Duration: 9 May 2016 → 11 May 2016
|Conference||International Symposium on Advanced Laser Manufacturing Technology 2016|
|Period||9/05/16 → 11/05/16|
Bibliographical noteHongye Li; Hongdan Wan; Zuxing Zhang; Bing Sun and Lin Zhang "Optical property of few-mode fiber with non-uniform refractive index for cylindrical vector beam generation", Proc. SPIE 10153, Advanced Laser Manufacturing Technology, 101530K (October 19, 2016).
Copyright 2016 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
- cylindrical vector beam
- few-mode fiber
- few-mode fiber Bragg grating
- non-uniform refractive index