Ditemukan 80 dokumen yang sesuai dengan query
Agus Santoso Tamsir
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ABSTRACT
Recently, the Indonesian researchers have anticipated the research on photonic devices especially on semiconductor laser. According to the anticipation above, the scope of this research is on photonic devices particularly on design and performance fabrication of 1.55 um GaInAsPfInP semiconductor laser using intrinsic single-mode layers.
The semiconductor laser was designed using intrinsic single-mode layers that consist of 4 (four) layers i.e., 2 (two) waveguiding layers with 1,15 p.m, AMB (Anti Melt Back) layer with 1.3 pm, ...
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Depok: Fakultas Teknik Universitas Indonesia, 1996
T-Pdf
UI - Tesis Membership Universitas Indonesia Library
Marpaung, Mangasi Alion
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ABSTRAK
An N2 laser system that consists of transversely excited atmospheric (TEA) oscillator and transversely excited (TE) amplifier has been designed and constructed. The laser system employs single common spark gap for both oscillator and amplifier. The optimum operating voltage is 15 kV at 2 Hz repetition rate. The measured energy of the output oscillator-amplifier system has maximum value of 55 pJ and beam divergence of 2 mrad horizontally and 1 mrad vertically.
Synchronization between ...
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1993
T-Pdf
UI - Tesis Membership Universitas Indonesia Library
Tatang Hidayat
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ABSTRACT
The molecular weight of Polymer material can be determined using optical system by measuring the intensity of scattered light at low angle light scattering and its the incident beam, based on Rayleigh scattering have developed by Debye has known as Static Light Scattering.
To carry out this measurement, an optical system was constructed using a HeNe laser light with a certain intensity, and the light passed through a polymer solution and its scattered light ...
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1992
T-Pdf
UI - Tesis Membership Universitas Indonesia Library
Wahyu Setia Budi
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ABSTRAK
A compact, simple and low-cost transversely excited atmospheric (TEA) pressure ultraviolet nitrogen laser {337 nm) has been designed and constructed employing the conventional Blumlein circuit. The measured energy of the output pulse of 337 nm is around 80 -J at 25 kV of charging voltage and l atm operating gas pressure. The beam divergence is found to be 7.7 mrad horizontally and 1.5 mrad vertically. The energy output decreases slightly with increasing gas pressure and ...
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1992
T-Pdf
UI - Tesis Membership Universitas Indonesia Library
Boedi Soesatyo
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ABSTRACT
For the purpose of optically cooling, trapping, detecting and accelerating Cesium atoms in a "fountain clock", semiconductor lasers with external resonator have been designed, built and tested in their spectral characteristic and their long-term frequency drift.
Multiple Quantum Well lasers with AR coating on one end face and a high reflection coating on the other end face have been used which produce 50 mW at 852 nm ( single end output ). With an ...
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1992
T-Pdf
UI - Tesis Membership Universitas Indonesia Library
Yusrandihardja
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An experiment demonstrating the principle of mode recognition has been performed. In the experiment, a He-Ne laser with phase synchronized TEMo1 mode is used. This laser has two stable (bistable) states corresponding to be emission of a right- and left- hand helical waves. Injection of light of one state can switch the laser emission to this state. A hologram is used to convert an image to the state of the laser and in turn irradiation ...
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Depok: Universitas Indonesia, 1992
T-Pdf
UI - Tesis Membership Universitas Indonesia Library
Peranginangin, Bisman
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ABSTRACT
Observation of fluorescence decay signal of condensed-state molecular samples in the time domain has proved very useful for its identification and analysis. In order to overcome the noise problem in the generally weak fluorescence signals a double-gated boxcar integrator has been designed and incorporated into a spectrometer. The design concept and the working principle of this spectrometer is presented along with detailed description of its subsystems. Performance of this spectrometer has been tested with well-known ...
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1988
T17546
UI - Tesis Membership Universitas Indonesia Library
Ering Poernomo Setianto
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ABSTRACT
The principles of frequency stabilization is to keep constant the optical path length in laser cavity by controlling the laser- tube length. In this system used temperature servo control to control the laser tube length.
As reference to an error derived by a sensitive frequency discriminator. Basically the operation of this sensitive frequency discrimantor utilized the longitudinal Zeeman Laser, which splits atomic gain profile.
When a longitudinal magnetic field is applied to an internal mirror of single ...
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Depok: Fakultas Teknik Universitas Indonesia, 1988
T-Pdf
UI - Tesis Membership Universitas Indonesia Library
Verdeyen, Joseph T.
Englewood Cliffs, N.J.: Prentice-Hall, 1995
621.366 VER l
Buku Teks Universitas Indonesia Library
OShea, Donald C.
Massachussetts: Addison-Wesley, 1978
621.36 OSH i
Buku Teks Universitas Indonesia Library
