Category: Repo

CHARACTERIZATIONS ON BENDING EFFECT ON CUSTOMIZED SPLITTERS USING VARIOUS RADII OF ELLIPTICAL-SHAPED BLOCKS

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http://repository.uhamka.ac.id/id/eprint/17189/

CHARACTERIZATIONS ON BENDING EFFECT ON CUSTOMIZED SPLITTERS USING VARIOUS RADII OF ELLIPTICAL-SHAPED BLOCKS

SUPIAN, L. S

Macro-bending effect unto polymer optical fiber (POF) based splitters study is done to analyse the performance and characterizations using several bending radii of geometrical blocks that hold a customized prepared polymer fiber splitter. A pair of etched fibers with similar core diameters are attached to the ellipse-shaped blocks built using matching refractive index material where the blocks were built with various bending radii. The tapered fibers were lapped closely with some forces exerted upon them in order to stimulate the splitting of modes between the two fibers. This study is done by experimental set-up where each of the splitter ports is connected with optical power meter to measure the power output while pressure is exerted. Characterization is executed in order to investigate and analyse which bending radius gives the most optimize splitting ratio with considerable low loss for the particular splitter prepared. As for normal force of 0.3 lbF, the optimum splitting ratio with low loss is specified having bending radius, Rc, of 13 mm whilst for external force of 3.0 lbF, bending radius is found to be 19 mm. Small bending radius stimulates the
radiation of rays into the second fiber while larger Rc gives longer coupling length that optimize the splitting ratios. Efficiencies between simulated values and experimental values are also analysed.

http://repository.uhamka.ac.id/id/eprint/17189/1/4-CHARACTERIZATIONS%20ON%20BENDING%20EFFECT%20ON%20CUSTOMIZED%20SPLITTERS%20USING%20VARIOUS%20RADII%20OF%20ELLIPTICAL-SHAPED%20BLOCKS.pdf

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Cek Similarity Artikel Nyawer as a Unique Local Tradition at School Graduation Events in Indonesia

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http://repository.uhamka.ac.id/id/eprint/17191/

Cek Similarity Artikel Nyawer as a Unique Local Tradition at School Graduation Events in Indonesia

Bandarsyah, Desvian

http://repository.uhamka.ac.id/id/eprint/17191/1/Nyawer%20as%20a%20Unique%20Local%20Tradition%20at%20School%20Graduation%20Events%20in%20Indonesia.pdf

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2-D Modes Analysis of Micro-Ring Resonator:In case of chemical vapor sensing

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http://repository.uhamka.ac.id/id/eprint/17175/

2-D Modes Analysis of Micro-Ring Resonator:In case of chemical vapor sensing

Ramza, Harry

This paper describes 2-D modes analysis on the waveguide structure. Micro – Ring Resonator formation was simulated to able the chemical vapor detection by using COMSOL Multiphysics application. We present the simulation of mode analysis from a Micro-ring Resonator as sensing the chemical vapor. By implementing the device parameters. We have seen from the simulator that the optical mode is handled equally within the ring. Using the variation of effective refractive index, our simulator result of ring resonator generated the mode analysis in two-dimension perspective. We conclude that the ring resonator device has potential for generating the certain wavelength.

http://repository.uhamka.ac.id/id/eprint/17175/1/2-D_Modes_Analysis_of_Micro-Ring_Resonator_In_case_of_chemical_vapor_sensing.pdf

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Design and Simulation of MEMS Electrostatic Resonator for Ammonia Gas Detection Based on SOIMUMPs

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http://repository.uhamka.ac.id/id/eprint/17176/

Design and Simulation of MEMS Electrostatic Resonator for Ammonia Gas Detection Based on SOIMUMPs

Ba Hashwan, Saeed S

The analytical modeling, design, and simulation of micromachined MEMS resonator for ammonia gas detection
is presented in this paper. The MEMS resonator is designed to be vibrated electrostatically using interdigitated comb fingers. The demonstrated device is designed to be capable to carry micro-ring resonator and vibrated in-plane laterally to enhance the sensitivity of the gas detection. This MEMS resonator working principle is based on the changes in the output signal wavelength due to the change in the effective refractive index introduced by the ammonia gas. The resonant frequency of the actuator and the pull-in voltage have been calculated theoretically and found to be 11.15 kHz and 79.7 V respectively. The design and simulation of the micromachined microresonator has been carried out using CoventorWare software. Furthermore, the mathematically modeled results were verified using the finite element analysis software and the result shows a good agreement within 1.06% error between the modeled and simulated frequencies where the modeled and the simulated frequencies are found to be 11.15 kHz and 11.27 kHz respectively.

http://repository.uhamka.ac.id/id/eprint/17176/1/Design_and_Simulation_of_MEMS_Electrostatic_Resonator_for_Ammonia_Gas_Detection_Based_on_SOIMUMPs.pdf

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