Samad, Shafeek Abdul and Tarimala, Badarinarayana and Hegde, Gopalkrishna and Talabattula, Srinivas (2018) Sub-nanometer narrow bandwidth gratings using deeply etched SOI rib waveguides. In: Conference on Silicon Photonics - From Fundamental Research to Manufacturing, APR 23-26, 2018, Strasbourg, FRANCE.
Full text not available from this repository.Abstract
We report the design and analysis of a novel sub nanometer narrow bandwidth grating using sidewall corrugated SOI rib waveguide. Wavelength filters with narrow bandwidth, smaller device footprint, lesser complexity and higher fabrication tolerance are essential for on-chip Wavelength Division Multiplexing (WDM) applications. In this paper, we propose a simple and effective method to obtain ultra-narrow bandwidth. The design consists of a deeply etched rib waveguide with slab sidewall corrugation for index modulation. In order to understand the device characteristics, numerical investigations were employed. With a corrugation width of 60 nm, narrow 3-dB bandwidth of 0.5 nm at 1550 nm was achieved. Our results also serve as the precursor for a Dense WDM architecture with channel spacing of 0.8 nm, realizable by varying the grating pitch.
| Item Type: | Conference Poster |
|---|---|
| Series.: | Proceedings of SPIE |
| Publisher: | SPIE-INT SOC OPTICAL ENGINEERING |
| Additional Information: | Conference on Silicon Photonics - From Fundamental Research to Manufacturing, Strasbourg, FRANCE, APR 23-26, 2018 |
| Keywords: | Waveguide Bragg Gratings; rib waveguides; dense wavelength division multiplexing (DWDM); integrated optical filter; silicon photonics; silicon-on-insulator (SOI) |
| Department/Centre: | Division of Electrical Sciences > Electrical Communication Engineering Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering |
| Date Deposited: | 28 Jan 2019 10:20 |
| Last Modified: | 28 Jan 2019 10:20 |
| URI: | http://eprints.iisc.ac.in/id/eprint/61513 |
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