Conceptual Design of Mach-Zehnder Optical Filter based on Two Dimensional Photonic Crystal | ||
| مجله مهندسی برق دانشگاه تبریز | ||
| Article 31, Volume 49, Issue 4 - Serial Number 90, February 2020, Pages 1795-1799 PDF (892.67 K) | ||
| Document Type: Original Article | ||
| Authors | ||
| M. Kamran kashtiban; K. Abedi* ; M. javad Sharifi | ||
| Faculty of Electrical Engineering, University of shahid beheshti, Tehran, Iran | ||
| Abstract | ||
| In this paper, an optical bandpass filters based on photonic crystal using asymmetric Mach-Zehnder interferometer is conceptually analyzed and designed. For this purpose, the wavelength parameters such as central wavelength, bandwidth, amplitude sharpening, and passband flattening for a single stage conceptual structure have been selected and realized based on two-dimensional hexagonal photonic crystal lattice. The proposed filter has a high degree of design freedom and by adjusting the structure design parameters, it can be used in the design of the wide and narrow bands optical filters. The 1-dB and 3-dB bandwidths for the initial structure and optical demultiplexer are obtained 12 nm, 25 nm and 4 nm, 8 nm, respectively which represents a 300 percent reduction in bandwidth and sharpening of the filter amplitude. | ||
| Keywords | ||
| Optical filters; photonic crystals; mach-zehnder interferometer; optical demultiplexer | ||
| References | ||
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