Tunable long-period fiber gratings for EDFA gain and ASE equalization

✍ Scribed by M.K. Pandit; K.S. Chiang; Z.H. Chen; S.P. Li

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 212 KB
• Volume: 25
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/(sici)1098-2760(20000505)25:3<181::aid-mop7>3.0.co;2-l

✦ Synopsis

Figure 12 E -field along box axis case d x result in lower fields inside the cavity. Furthermore, slots with Ž . overlapping regions overbite , result in a further reduction of the field magnitudes.

Calculations from both numerical methods were in good agreement in predicting the EM field values along the box axis in all four cases; however, a discrepancy was evident in calculating the fields in the neighborhood of the slot where steeply varying fields exist. The MoM calculations overestimated the field values in the slot region, due to the field points being too close to the surface patches modeling the geometry. This suggests that special slot-type basis functions will be necessary for accurate field estimation. In FDTD, a finer mesh is needed in such situations.