The Mechanical Properties of Thixotropic Gels and their Effect on Attenuation in Optical Fiber Communication Cables

1989 ◽  
Vol 177 ◽  
Author(s):  
Carl R. Taylor ◽  
Bob J. Overton ◽  
Ching Fang Tu
Keyword(s):  
Mechanical Properties ◽  
Yield Stress ◽  
Optical Fibers ◽  
Fumed Silica ◽  
Fiber Optic ◽  
Optical Fiber Communication ◽  
Signal Attenuation ◽  
Fiber Optic Cable ◽  
Fiber Communication ◽  
The Relationship

ABSTRACTFumed silica/oil gels exhibiting rheological properties characterized by a yield stress followed by shear thinning behavior have been studied for application as waterblocking filling compounds for fiber optic cable. It is found that added signal attenuation in optical fibers after processing into a filled fiber optic ribbon cable is a function of the yield stress of the filling gel. We derive experimentally and apply a model of the relationship to formulate an optimum fumed silica/oil filling gel for fiber optic ribbon cables.

scholarly journals ANALISIS REDAMAN SERAT OPTIK TERHADAP PERFORMANSI SKSO MENGGUNAKAN METODE LINK POWER BUDGET (STUDI KASUS PADA LINK PADANG-BUKITTINGGI DI PT. TELKOM PADANG)

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Ilham Sudrajat ◽  
Yasdinul Huda ◽  
Delsina Faiza
Keyword(s):  
Optical Fiber ◽  
Power Output ◽  
Communication Systems ◽  
Fiber Optic ◽  
Optical Fiber Communication ◽  
Power Budget ◽  
Fiber Optic Cable ◽  
Fiber Communication ◽  
Cable Length ◽  
Attenuation Value

Based on the survey data of optical fiber service, the communication network uses optical fiber transmission medium is not maximal yet, because there are some errors in the network, such as the percentage of Network Post Dialing Delay in system is 97.5%, that means there is 2.5% of error a delay occurs in the network when making a call. This research was conducted by analyzing the fiber attenuation of fiber-optic communication systems performance on the link Padang-Bukittinggi in PT. Telkom Padang, SKSO division which uses single mode fiber optic cable types G655. Instrument in this study is the Power Meter and OTDR JDSU MTS-6000 type. Link Power Budget method is used to determine the performance of optical fiber communication systems caused by attenuation based on the value of the received power output. Obtained results on the link Padang-Bukittinggi highest attenuation occurs in core 5 with 26.7226 dB attenuation value and cable length 115 016 km, and in core 7 with 26.1812 dB and cable length 94 462 km. This value is still below of PT. Telkom standard with 28.10352 dB for core 5. While the attenuation value at 7 cores exceeds standard attenuation values​​, with 24.18186 dB, so the performance of the core is declared bad and needs to be evaluated. From optical fiber attenuation value, result of the link power budget analysis is obtained from the calculation of the value of Rx is smaller when compared with -27 dBm the value of Rx sensitivity, it can be said the performance of optical fiber communication systems on the link in the normal state and can be used to operate because the power output can be accepted by the receiver in the device. Keywords: fiber optic cable, optical fiber attenuation, SKSO, link power budget.

scholarly journals P PERANCANGAN PEMANCAR DAN PENERIMA MODULASI DIGITAL FSK BERBASIS SERAT OPTIK MENGGUNAKAN METODE SPLISING DAN ADAPTER UNTUK MODUL PRAKTIKUM OPTIK

2019 ◽  
Vol 2 (2) ◽  
pp. 75-81
Author(s):  
Aprinal Adila Asril
Keyword(s):  
Optical Fibers ◽  
Fiber Optic ◽  
Signal Transmission ◽  
Optical Fiber Communication ◽  
Optical Signal ◽  
Digital Modulation ◽  
Study Program ◽  
Fiber Communication ◽  
Module Design ◽  
Optical Cable

This research aims to design practicum modules for optical cable transmission systems with fiber optic cable (fiber optic) connection systems. This research was conducted by design and experimental methods. The practicum module that is designed consists of the transmitter and receiver parts using a Digital modulation system. The results of this module design will be tested, measured, and analyzed in the delivery of information using FSK digital modulation and the damping effect of informatio received due to the connection of optical fibers to the transmission system. Splicing is done using the fusion splicer (splising) method and adapters. The two connection methods will be compared to the measurement results, especially the damping value. The results of the study are an Optical practicum module using optical signal transmission media as well as a practicum module (jobsheet). The module that is designed will be one of the Practicum modules to support the eyes of the optical fiber communication system in the State Polytechnic Telecommunications Engineering Study Program.   Keyword: Optical cable, fusion splicer, adapter

scholarly journals Analysis of Curvature in Fiber Optic Cable for Macrobending-Based Slope Sensor

2021 ◽  
Vol 3 (1) ◽  
pp. 45-56
Author(s):  
Imam Mulyanto
Keyword(s):  
Fiber Optics ◽  
Optical Fibers ◽  
Fiber Optic ◽  
Laser Light ◽  
Laser Intensity ◽  
Single Mode ◽  
Power Losses ◽  
Fiber Optic Cable ◽  
Power Meter ◽  
Working Principle

The analysis of fiber optics for macro bending-based slope sensors using SMF-28 single-mode optical fibers has been successfully conducted. Fiber optics were treated to silicon rubber molding and connected with laser light and power meters to measure the intensity of laser power generated. The working principle was carried out using the macrobending phenomenon on single-mode optical fibers. The intensity of laser light in fiber optic cables decreases in the event of indentation or bending of the fiber optic cable. Power losses resulting from the macrobending process can be seen in the result of the information sensitivity of fiber optics to the change of angle given. From the results of the study, the resulting fiber optic sensitivity value is -0.1534o/dBm. The larger the angle given, the lower the laser intensity received by the power meter.

scholarly journals Macrobending Loss Analysis on Singlemode-Multimode-Singlemode Fiber Optic Core

2019 ◽  
Vol 9 (2) ◽  
pp. 11-15
Author(s):  
Sisca Arisya Harry Andhina
Keyword(s):  
Light Source ◽  
Optical Fibers ◽  
Fiber Optic ◽  
Optical Power ◽  
Single Mode ◽  
Fiber Optic Cable ◽  
Power Meter ◽  
Loss Analysis ◽  
Measurement Results ◽  
Source Test

Macrobending often occurs in optical fibers that embedded in the ground due to shifting of soil or rocks in the ground causing interference in transmission. In this study used single-mode-multimode-singlemode fiber optic cable connected manually and axially measured using a light source test equipment and optical power meter and the results will be compared. The measurement results obtained the greater  value of macrobending losses with the smaller the diameter of the winding, and the greater the number of turns. The highest value of macrobending losses in multimode cables is -1.48dB at 0.5cm diameter with 5 turns, highest value of macrobending losses on single mode cables is -12.73dB at 0.5cm diameter with 5 turns,  lowest value of macrobending losses for multimode cables is -0.44dB at 5cm diameter with 1 twist, lowest macrobending losses in singlemode cables is -1.69dB at 5cm diameter with 1 twist. While the value of macrobending losses on axially connected SMS cables shows the highest value of macrobending losses on multimode cables is -1.12dB in diameter of 0.5cm with 5 turns,  highest value of macrobending losses on singlemode cables is -1.18dB at diameter of 0.5cm with 5 turns,  lowest value for macrobending losses on multimode cables is -0.66dB at 5cm in diameter with 1 twist, the smallest value for macrobending losses on singlemode cables is -0.27dB at 5cm diameter with 1 twist . The measurement results also showed that the macrobending losses of manually connected SMS cables were greater than the macrobending losses of axially connected SMS cables.

On the Temperature-Related Mechanical Properties of UV-LIGA Nickel Material

2015 ◽  
Vol 645-646 ◽  
pp. 926-930 ◽  
Author(s):  
Shuang Shi Yuan ◽  
Guang He ◽  
Ming Zhang ◽  
Guo Zhong Li
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Yield Stress ◽  
Environmental Temperature ◽  
Experimental System ◽  
Failure Stress ◽  
Uniaxial Tensile ◽  
Mechanical Parameters ◽  
Static Mechanical ◽  
The Relationship

MEMS nickel material is commonly used for structural material in micro devices. In order to study the effect of environmental temperature on its mechanical properties,this paper has built up a experimental system which can measure the temperature-related static mechanical parameters of the UV-LIGA nickel material. By using the system for uniaxial tensile experiments of the micro specimen under different temperature, the stress-strain curves of the micro specimen under different temperature were obtained; the mechanical parameters of the micro specimen such as elastic modulus, yield stress and failure stress under different temperature were also calculated out;Finally, the relationship between temperature and mechanical parameters including elastic modulus, yield stress and failure stress was analyzed.

Mode Conversion Models Based on Spatial Spectral Matching for Mode Division Multiplexing in Optical Fibers

2014 ◽  
Vol 596 ◽  
pp. 807-810 ◽  
Author(s):  
Ming Ying Lan ◽  
Song Nie ◽  
Li Gao ◽  
Shan Yong Cai ◽  
Chen Xing Ma ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Communication Systems ◽  
Mode Conversion ◽  
Optical Fiber Communication ◽  
Spatial Filter ◽  
Light Modulator ◽  
Spectral Matching ◽  
Fourier Plane ◽  
Fiber Communication ◽  
Mode Division Multiplexing

In this paper, a mode conversion model is proposed to increase the capacity of optical fiber communication systems. In this model, a spatial spectral matching method is used to convert the original mode to the desired mode for mode division multiplexing in optical fibers. A binary phase spatial light modulator is employed on the Fourier plane as a spatial filter. Numerical results show that the original modes can be converted to the desired modes.

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