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CASE STUDY OF OPTICAL FIBER LOSS AND POWER

CASE STUDY OF OPTICAL FIBER LOSS AND POWER ANALYSIS WITH THE LINK BUDGET METHOD IN THE STO AHMAD YANI OPTICAL FIBER NETWORK
This study analyzes the losses of optical fiber to optical fiber communication systems at PT. Telkom ARNET 1 East Bandung, using multimode fiber optic cable type G 655 C and G 652 D. Based on the measurement results using OTDR, the maximum total loss that exceeds the standardization of 0.5 dB / km, occurs in the Ahmad Yani-Tegalega segment, 24 core cable with fiber number 1,2,5,6,7,9,11 and Ahmad Yani-Tegalega segment, 48 core cable with fiber number 35,37,38. Section Ahmad Yani-Dago total lossthe maximum that exceeds the standardization of 0.5 dB / km is the fiber number 18. The minimum standard acceptability is - 4 dBm for laser light sources. From the measurement results, the minimum received power for the Ahmad Yani-Lembong segment is 1.4 dBm, Ahmad Yani Tegalega - 2,893 dBm, Ahmad Yani-Ujungberung 0,932 dBm, Ahmad Yani-Turangga 1,4 dBm, and Ahmad Yani-Rancaekek -0,702 dBm.

Keywords: optical fiber, ITU-T loss standardization , minimum acceptability, OTDR

ABSTRACT
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This reseach analyzing loss optical fiber to the optical fiber communication systems in PT. Telkom Arnet 1 Bandung Timur, using the multimode optical fiber cables, type G 655 C and G 652 D. Based OTDR measurement results, it was obtained the total loss exceeded the maximum standarization of 0.5 dB/ km that occurred on a segment Ahmad Yani-Tegalega, 24 core cable with fiber numbers 1,2,5,6,7,9,11. The segment of Ahmad Yani-Tegalega, 48 core cable with fiber numbers 35,37,38 and Ahmad Yani-Dago total loss exceeded the maximum standarization of 0.5 dB/km was the number of fiber 18. The minimum received power standarization was - 4 dBm for the laser light source. The obtained measurement results for the minimum received power segment Ahmad Yani-Lembong, Ahmad Yani-Tegalega, Ahmad Yani-Ujungberung, Ahmad Yani-Turangga and Ahmad Yani - Rancaekek were 1.4 dBm, -2.893 dBm, 0.932 dBm, 1.4 dBm and -0.702 dBm respectively.


Keywords: optical fiber, loss standarizationITU-T, minimum received

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