Analisa Propagasi Cahaya Pada Non-Zero Dispersion Shifted Fiber (NZDSF) Menggunakan Split-Step Fourier Method

Riadhah, Mekka (2007) Analisa Propagasi Cahaya Pada Non-Zero Dispersion Shifted Fiber (NZDSF) Menggunakan Split-Step Fourier Method. Other thesis, Institut Teknologi Sepuluh Nopember Surabaya.

Text 2403100071-Undergraduate_Thesis.pdf - Accepted Version Download (5MB)

Abstract

Kebutuhan layanan telekomunikasi yang meningkat menuntut tersedianya jaringan berbasis serat optik yang mampu mentransmisikan data dengan bitrate tinggi dan menempuh jarak yang maksimal. Salah satu faktor yang membatasi bitrate dan jarak adalah degradasi sinyal berupa pelebaran pulsa (pulse broadening). Salah satu cara untuk mengatasinya adalah dengan menggunakan serat optik khusus, yaitu: Non-Zero Dispersion Shifted Fiber (NZDSF). Telah dianalisa propagasi cahaya dalam Reduced Slope NonZero Dispersion Shifted Fiber (RS NZDSF) sepanjang 25 km di daerah dispersi normal (Group Velocity Dispersion (GVD) positif) dan dispersi anomali (GVD negatif) dengan menggunakan metode Split-Step Fourier. Analisa dilakukan dengan memodelkan pulsa Gaussian sebagai pulsa masukan, memplot grafik evolusi pulsa tersebut sepanjang serat optik, dan menghitung nilai Pulse Broadening Ratio (P BR). Sebagai kondisi awal, pulsa Gaussian memiliki RMS width 125 ps. Pada daerah dispersi normal terjadi pelebaran dengan PBR2s=7, 169; T FWHM2s=2115 ps dan di daerah dispersi anomali terjadi penyempitan dengan PBR25=0,3017;TFWHM2S=89 ps. Pelebaran dan penyempitan pulsa ini terjadi karena dispersi kromatik dan efek nonliner Self-Phase Modulation (SPM). Kemudian RS NZDSF berparameter GVD positif dan negatif dipasang seri. Dengan cara ini bitrate yang dapat ditransmisikan adalah 737 Mb/s sejauh 50 km, dibandingkan dengan menggunakan Standard Single Mode Fiber (SMF) dengan jarak yang sama, bitrate hanya mencapai 228 Mb/s
===================================================================================================================================
The increasing need for telecommunication services requires the availability of fiber optic-based networks that are capable of transmitting data with high bitrates and covering maximum distances. One of the factors that limits bitrate and distance is signal degradation in the form of pulse broadening. One way to overcome this is to use a special optical fiber, namely: Non-Zero Dispersion Shifted Fiber (NZDSF). Light propagation in a 25 km Reduced Slope NonZero Dispersion Shifted Fiber (RS NZDSF) in the normal dispersion area (positive Group Velocity Dispersion (GVD)) and anomalous dispersion (negative GVD) using the Split-Step Fourier method has been analyzed. The analysis was carried out by modeling a Gaussian pulse as an input pulse, plotting a graph of the evolution of the pulse along the optical fiber, and calculating the Pulse Broadening Ratio (P BR) value. As an initial condition, the Gaussian pulse has an RMS width of 125 ps. In the normal dispersion area, broadening occurs with PBR2s = 7, 169; T FWHM2s = 2115 ps and in the anomalous dispersion area there is a narrowing with PBR25 = 0.3017; TFWHM2S = 89 ps. This pulse broadening and narrowing occurs due to chromatic dispersion and the nonlinear effect of Self-Phase Modulation (SPM). Then the RS NZDSF with positive and negative GVD parameters is installed in series. In this way the bitrate that can be transmitted is 737 Mb / s as far as 50 km, compared to using Standard Single Mode Fiber (SMF) with the same distance, the bitrate only reaches 228 Mb / s

Item Type:	Thesis (Other)
Additional Information:	RSF 621.36 Ria a-1 2007
Uncontrolled Keywords:	Serat Bergeser Dispersi Non-Nol (NZDSF), pulsa Gaussian, Metode Fourier Langkah Terbagi; Non-Zero Dispersion Shifted Fiber (NZDSF), Gaussian pulse, Split-Step Fourier Method
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA1800 Fiber Optics
Divisions:	Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	EKO BUDI RAHARJO
Date Deposited:	16 Jan 2025 07:50
Last Modified:	16 Jan 2025 07:50
URI:	http://repository.its.ac.id/id/eprint/116359

Actions (login required)

View Item