Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1540239 | Optics Communications | 2007 | 10 Pages |
Abstract
Three grating couplers for diode-bars single-point and multi-point side-pumping double-clad fiber (DCF) are presented. The principles, characteristics and coupling efficiencies of these grating couplers are described and computed by a rigorous electromagnetic theory. We show computationally that the optimized gratings can couple the high-power TE- or TM-polarized pump lights with 94.7% and 79.7% into the DCF, respectively. For an un-polarized pump light, 72.4% efficiency can be reached. We also have analyzed the leakage of pump powers for diode-bars multi-point side-pumping DCF. Besides, the fabrication tolerances and other performances of the grating couplers are analyzed.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Zhang Fan, Wang Chun-can, Geng Rui, Tong Zhi, Ning Tigang, Jian Shui-sheng,