Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10641268 | Optics Communications | 2011 | 6 Pages |
Abstract
⺠A simplified and low-cost setup for writing LPFGs with a cheap CO2 laser. >Writing-spot size correlates with mode coupling in LPFGs. ⺠Large spot enhances asymmetry of transverse refractive-index distribution. ⺠Asymmetric mode coupling with multi-dip resonance as a result. >Mode-profile simulation and cladding etching experiment proves the explanation.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Xuesong Liu, Ming Yan, Li Zhan, Shouyu Luo, Zhiming Zhang, Yuxing Xia,