Optimization of optical wide band 3-dB MMI splitter with graded-index side diffusions
Swillam, M. A.; Morshed, Ahmed Hisham; Khalil, D.;
Abstract
The design of a 3-dB multimode-interference-based symmetrical optical splitter for realization by ion exchange on glass substrates is optimized for wide band performance taking the graded-index side diffusions into consideration. The depth of diffusion and width of the multimode waveguide section for best coupler performance are determined based on a modified model of ion-exchanged waveguides which takes into account the effective index grading in the lateral direction due to the finite width of the waveguide and the presence of side diffusions. The performance of the devices is simulated using the beam propagation method and compared to that of a conventional step-index design. Couplers with larger bandwidths are obtained using optimized designs. © 2004 IEEE.
Other data
| Title | Optimization of optical wide band 3-dB MMI splitter with graded-index side diffusions | Authors | Swillam, M. A.; Morshed, Ahmed Hisham ; Khalil, D. | Keywords | 3-db symmetrical optical splitter | Graded-index side diffusions | Ion exchange on glass | Multimode-interference | Wide band performance | Issue Date | 1-Dec-2004 | Journal | Proceedings - 2004 International Conference on Electrical, Electronic and Computer Engineering, ICEEC'04 | ISBN | 0780385756 | Scopus ID | 2-s2.0-16244384989 |
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