| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1541198 | Optics Communications | 2008 | 4 Pages |
Abstract
Mode field profiles and polarization dependence in the CO2-laser-notched long period fiber gratings (LPFGs) were investigated in detail. Asymmetric field profile was demonstrated in the 2- and 3-dimensional far field patterns of the CO2-laser-notched LPFG, which experimentally verifies the previously-presented asymmetry of refractive index modulation within the cross section of the gratings. Polarization dependent loss (PDL) of the LPFG was measured via Mueller matrix method. The maximum PDL of 1.68 dB and the maximum polarization extinction ratio of 1.07 dB are observed in the LPFG.
Keywords
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Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Yiping Wang, D.N. Wang, Wei Jin, Hoi Lut Ho, Jian Ju,