Please use this identifier to cite or link to this item:
http://ir.mu.ac.ke:8080/jspui/handle/123456789/7390
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Rukerandanga, Filston | - |
dc.contributor.author | Musyoki, Stephen | - |
dc.contributor.author | Ataro, Edwin O. | - |
dc.date.accessioned | 2023-03-20T08:37:16Z | - |
dc.date.available | 2023-03-20T08:37:16Z | - |
dc.date.issued | 2022 | - |
dc.identifier.uri | https://doi.org/10.3390/opt3030027 | - |
dc.identifier.uri | http://ir.mu.ac.ke:8080/jspui/handle/123456789/7390 | - |
dc.description.abstract | This research work conducted a design and simulation of an ultra-low power all-optically tuned nonlinear ring resonator-based add-drop filter. The purpose of this study is to investigate a CMOS-compatible nonlinear material system for an optical filter with temperature resilience, polarization insensitivity, and fast and energy-efficient tunability. The all-optical tunability was achieved using an optical pump that photo-excites the high nonlinear Kerr effect in the device material system. A three-dimensional multiphysics approach was used, combining the electromagnetics and thermo-structural effects in the filter. Hybrid graphene on an ultra-rich silicon nitride ring resonator- based filter enabled the realization of an ultra-high tuning efficiency (0.275 nm/mW for TE mode and 0.253 nm/mW for TM mode) on a range of 1.55 nm and thermal stability of 0.11 pm/K. This work contributed to the existing literature by proposing (1) the integration of a high Kerr effect layer on a low loss, high index contrast, and two-photon absorption-free core material with an athermal cladding material system and (2) the use of a cross-section shape insensitive to polarization. Moreover, the tuning mechanism contributed to the realization of an all-optical on-chip integrable filter for Dense Wavelength Division Multiplexing systems in the less occupied L band | en_US |
dc.language.iso | en | en_US |
dc.publisher | MDPI | en_US |
dc.subject | Kerr effect | en_US |
dc.subject | Ring resonator | en_US |
dc.title | Ultra-low power all-optically tuned hybrid graphene ultra silicon-rich nitride ring resonator-based add-drop filter for DWDM systems | en_US |
dc.type | Article | en_US |
Appears in Collections: | School of Engineering |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.