Highly drop-efficient channel-drop optical filters with Si-based photonic crystal slabs
| Autor: | Akiko Gomyo, Jun Ushida, Masayuki Shirane |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Materials science
Silicon business.industry Drop (liquid) Bandwidth (signal processing) Metals and Alloys Physics::Optics Silicon on insulator chemistry.chemical_element Surfaces and Interfaces Computer Science::Other Surfaces Coatings and Films Electronic Optical and Magnetic Materials Wavelength Optics chemistry Materials Chemistry Optical filter business Electrical impedance Photonic crystal |
| Zdroj: | Thin Solid Films. 508:422-425 |
| ISSN: | 0040-6090 |
| DOI: | 10.1016/j.tsf.2005.06.113 |
| Popis: | Channel-drop filters (CDFs) with photonic crystal slabs–connected between silicon channel waveguides and fabricated on an SOI wafer–were designed and fabricated and these demonstrated wavelength division demultiplexing. Results simulated with the two-dimensional finite-difference time-domain and plane-wave methods demonstrated that considering the impedance profile, which is directly correlated with the reflective coefficient at the highly reflective interface, is essential in designing a highly drop-efficient CDF structure. The fabricated filters attained a drop efficiency above 95% at around a wavelength of 1.6 μm and a dropping bandwidth of 1.5 nm. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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