Ditemukan 16 dokumen yang sesuai dengan query
Agus Rubiyanto, author
ABSTRACT
A non-mechanical method of measuring temporally coherent light, which may be dominated by incoherent background radiation, has been developed. The measurement method is based on the modulated signal produced by the temporally coherent radiation through a LiTaO3 crystal.
In the study, the coherent and incoherent lights are combined. To detect...
1993
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Rajagoekgoek, Herbert H., author
Depok: Universitas Indonesia, 1992
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UI - Tesis Membership Universitas Indonesia Library
A. Juliati Junde, author
With the growth of optical communications using Low toss optical. fibers. the need for an optical switching system that exchanges optical. signals without any optoelectric and electro optic converter may arise. In this study, an experimental model of sliding prism switch using planar micro lens array has been constructed. The...
Depok: Universitas Indonesia, 1992
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Heri Saptono Warpindyasmoro, author
A design of novel optical power divider with tapered coupled wave-guide structure is proposed. The structure of optical power divider is directional coupler, which consists of parallel tapered wave-guide. The device was designed and its feature was simulated by the beam propagation method (BPM). Unique power coupling characteristics are demonstrated....
Depok: Universitas Indonesia, 1994
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Mufti Gafar, author
ABSTRAK
In transmission system, the information to be transmitted from one source to several addressed receivers requires a component to distribute the information. To achieve an efficient and simple distribution circuit of information, a study on the use of fiber as information signal distributor without using other optical elements has been...
1991
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Bualkar Abdullah, author
ABSTRACT
In optical communication system, optical star coupler devices are important for distributing optical signal from one incoming fiber into several outgoing fibers. In this research, an investigation on the design of optical fiber star coupler has been carried out by the use of simple way. Utilizing the cone-shaped end face of...
1990
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Andi Djalal Latief, author
ABSTRAK
Specific performance of an optical waveguide can be achieved by solving the eigen value equation of the respective waveguide. A numerical method to obtain dispersion characteristics of a planar waveguide has been executed on a computer program which run on IBM PC or its compatible with 640 KB memory. Coupler...
1991
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Sholeh Hadi Pramono, author
A study on the design and construction of measurement system of electric current of power line has been carried out. The electromagnetic induction on inductor placed near a power line was used as modulator signal of laser diode. The modulator signal in frequency signal form is obtained by converting the...
Depok: Universitas Indonesia, 1990
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Endang Susilo Rahayuningtijas, author
Experimental study on fiber power-splitter using a grating is described. Special attention is paid to the splitting ratio. Experiments were performed with a simple grating confirming the theoretical prediction Double passing of the grating results in a selectable splitting ratio of 5:7. Grating is made by photographic technique. Parameter b...
Depok: Universitas Indonesia, 1994
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Nasrun Lubis, author
In signal transmission through an optical fiber, a bending fiber causes degradation of efficiency. Due to mode conversion and radiation loss. Considering a light power radiated from a bending fiber has a possibility to be utilized as detectable signal, it is proposed an optical tap by using bending fiber.
The study...
Depok: Universitas Indonesia, 1989
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