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17 articles for “Waveguide”
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Research ArticleOpen accessEvery word in the titleION-IMPLANTED GLASS WAVEGUIDES: A REVIEWShu Cheng, Bo Peng, Hai-Tao Guo et al.As a well-known technique for material modification, ion implantation has become an effective method to fabricate waveguide in optical glasses. The guiding structures can be accurately controlled by the adjustment of the species, energies and fluences of the implanted ions. In the present work, we review the results of up-to-date research on the fabrication, characterization and applications of the ion-implanted … …Physics International, Vol. 4, Issue 1 · 20 May 2013 · 13,460 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDesign of Square Substrate Integrated Waveguide Cavity Resonators: Compensation of Modelling Errors by Support Vector Regression MachinesGiovanni AngiulliThe design of Substrate Integrated Waveguide (SIW) resonators is usually a cumbersome process, especially due to the length &#34trial and error&#34 procedure involved in this task. In this study Support Vector Regression Machines (SVRMs) are employed to compensate the modeling errors associated to the design of SIW rectangular cavity resonators. To validate the proposed approach, we have compared the design … …American Journal of Applied Sciences, Vol. 9, Issue 11 · 5 Sep 2012 · 6,689 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDesign of Pass Band Filter in Hybrid Architecture Planar/Non-Radiative Dielectric Waveguide Integration TechnologyGharssallah Ali, Harizi HanenProblem statement: The expansion of RF, microwave and millimeter devices has revolutionized today’s ommunication and sensor systems. Low-cost, high-performance and mass producible millimeter wave technologies are vital for commercial broadband systems. Challenging issues are commonly faced in the design of low-loss integrated circuits for example high-Q band pass filter, which the planar technique is fundamentally limited in performance. Approach: In … …American Journal of Applied Sciences, Vol. 9, Issue 10 · 10 Aug 2012 · 7,092 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDesign and Optimization of a 1.55 µm Waveguide Based on Silicon Planar Photonic CrystalsR. Bchir, A. Bardaoui, M. Machhout et al.Background: Silicon based Planar Photonic Crystals (PPC) are used for the design of a 1.55 µm waveguide. Line defects are then formed in the PPC structures, by removing rows of holes, to obtain a Planar Photonic Crystal Waveguide (PPCW). Objective: First, we varied the thickness of the Silicon slab and the pore radius in order to obtain optimum design parameters … …American Journal of Applied Sciences, Vol. 7, Issue 1 · 31 Jan 2010 · 7,472 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffects of Adhesive on Coupling Efficiency of Planar Light Waveguide PackagingYang Bo, Duan Ji-anProblem statement: Advanced optoelectronic devices are a kind of key and basic components for next generation communication, untouched sensor, medical testing. They have lots of advantages including greater communication performance, larger capacity, and more fixable form. But light coupling and package structure seriously affects performance of optoelectronic devices. So a lot of attaching methods were proposed to package optoelectronic devices. … …Current Research in Nanotechnology, Vol. 1, Issue 2 · 21 Jun 2011 · 7,140 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDesign of a Novel Structure SIW 90° CouplerAbdelkhalek Nasri, Hassen Zairi, Ali GharsallahThis paper focuses on the analysis of passive devices using a recent emerging technology named Substrate Integrated Waveguide (SIW). This technology has been used in the conception of planar compact components for the microwave and millimeter wave’s applications. Through using Ansoft HFSS and CST code a substrate integrated waveguide coupler has conceived and optimized in this study. The SIW 90° … …American Journal of Applied Sciences, Vol. 13, Issue 3 · 16 Mar 2016 · 7,906 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffect of Low Temperature on the Fabrication of Microring Resonator by Wet EtchingHazura Haroon, Sahbudin Shaari, P. Susthitha Menon et al.Research related to semiconductor devices often relies on wafer fabrication. The fabrication of Silicon (Si) based devices by anisotropic wet etching can be affected by many etching parameters such as etching temperature, crystal orientation and percent of composition. Most of the anisotropic wet etchings by KOH solution done before were conducted at temperature over 70°C. We found that the temperatures … …American Journal of Applied Sciences, Vol. 9, Issue 12 · 7 Nov 2012 · 7,126 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAbrasive Jet Polishing and its Applications in Surface FinishingZhaoze Li, Jianmin Wang, Xiaoqiang Peng et al.Problem statement: Single Point Diamond Turning (SPDT) is highly deterministic and versatile in producing various forms of precise optics. A typical example is the production of large off-axis aspheric mirrors and various infrared mirrors and mandrels. However, the fine periodical turning marks left in the surface critically limit its performance and they are difficult to be avoided for traditional polishing … …Current Research in Nanotechnology, Vol. 1, Issue 2 · 26 Jul 2011 · 13,587 accessesView PDFCite
Research ArticleOpen accessIn the keywordsThe Polishing of Cutting-Edge Polymer-on-Glass for Pigtailing PreparationMohammad Syuhaimi Ab-Rahman, Fazlinda Ab-Aziz, Noor Azie Azura Mohd Arif et al.Problem statement: The high quality of cutting-edge surface is important in optical waveguide's efficiency. The perfect polishing of end surface is significant to deliver the best quality of light waves and minimize the device losses such as insertion loss and return loss. Hence, this research is concern on the parameters in polishing SU-8 polymer to increase the efficiency of waveguide. … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 1 · 31 Mar 2009 · 9,148 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Novel Thermooptic Polymer Switch Based on Directional Coupler StructureAbu Sahmah Mohd Supa’at, Mohd. Haniff Ibrahim, Abu Bakar Mohammad et al.A novel thermooptic (TO) polymer switch based on directional coupler structure is proposed for the first time. The key element of the proposed switch is a buried square core polymer waveguides which has been designed for optimum mode matching and coupling with the single mode optical fiber configuration and have large effective index difference by the thermooptic effects. At a … …American Journal of Applied Sciences, Vol. 5, Issue 11 · 30 Nov 2008 · 6,374 accessesView PDFCite