scholarly journals 32-CHANNEL DWDM SYSTEM WITH DIFFERENT AMPLIFIERS AND MODULATIONS

2021 ◽  
Vol 21 (2) ◽  
pp. 22-27
Author(s):  
Norbert ZDRAVECKÝ ◽  
◽  
Ľuboš OVSENÍK ◽  
Jakub ORAVEC ◽  
Maroš LAPČÁK
Keyword(s):  
Wavelength Division Multiplexing ◽  
Bit Error Rate ◽  
Error Rate ◽  
Optical Amplifiers ◽  
Optical Channel ◽  
Q Factor ◽  
Nonlinear Characteristics ◽  
Transfer Rates ◽  
Wavelength Division ◽  
Dwdm System

Wavelength Division Multiplexing is a technology that has enabled the transmission of huge amounts of data at high transfer rates over a single optical fiber. The capacity of an optical channel is usually affected by the shape of signal, nonlinear characteristics and dispersion. In this article, we focus on the DWDM system, optical amplifiers, and optical modulations in 32-channel DWDM system, which was designed in the OptiSystem program. We evaluate the parameters BER (Bit Error Rate) and Q factor for 40 Gb/s systems with changing amplifiers.

scholarly journals ANALISIS PERANCANGAN SISTEM (WAVELENGTH DIVISION MULTIPLEXING) WDM-PON PADA TEKNOLOGI XG-PON DENGAN MENGGUNAKAN SOFTWARE OPTISYSTEM

2020 ◽  
Vol 3 (1) ◽  
pp. 28-34
Author(s):  
Dini Anggraini ◽  
Efri Sandi ◽  
Arum Setyowati
Keyword(s):  
Wavelength Division Multiplexing ◽  
Bit Error Rate ◽  
Error Rate ◽  
Q Factor ◽  
Wavelength Division ◽  
Link Budget ◽  
Wdm Pon

Teknologi XG-PON merupakan pengembangan dari teknologi G-PON. Perbedaan XG- PON dengan G-PON adalah bitrate nya. Penelitian ini bertujuan untuk menganalisis perancangan dari sistem WDM-PON pada teknologi XG-PON dengan menggunakan software optisystem. Pada perancangan penelitian memiliki beberapa parameter data yang diambil, antara lain Q-Factor, Bit Error Rate dan Power Link Budget. Rancang jaringan WDM-PON pada teknologi XG-PON menggunakan software optisystem melalui tahap simulasi dengan cara mengubah jarak 10-50 Km dan mengubah PTx sebesar 2-8 dBm pada software optisystem. Hasil yang didapatkan dari rancangan WDM-PON pada teknologi XG-PON adalah layak dengan memenuhi standar jaringan yang ada dengan Power Link Budget sebesar -27.54 dBm. Serta mendapatkan hasil dari penelitian Bit Error Rate terhadap jarak dimana semakin dekat jarak maka Bit Error Rate akan semakin bagus dan bila semakin jauh jarak maka Bit Error Rate akan semakin buruk.

High Speed 2 × 10 Gbps WDM Enabled Inter-Satellite Optical Wireless Communication Link

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Veena Kumari Thappa ◽  
Bindu Sharma ◽  
Abhishek Sharma
Keyword(s):  
Wireless Communication ◽  
Wavelength Division Multiplexing ◽  
Bit Error Rate ◽  
Error Rate ◽  
High Speed ◽  
Communication Link ◽  
Q Factor ◽  
Optical Wireless Communication ◽  
Optical Wireless ◽  
Wavelength Division

AbstractTransmission of data between satellites has been revolutionized via the use of Inter-satellite optical wireless communication (Is-OWC). In this work, we evaluate the validation of high speed and long reach Is-OWC system suing return-zero encoding and wavelength division multiplexing. Two channels, each carrying 10 Gbps of information transmits data on Is-OWC link of 2200 Km length. The performance of the proposed system is investigates in terms of bit-error rate, Q-factor and eye patterns.

scholarly journals FBG (FIBER BRAGG GRATING) UNTUK DWDM (DENSE WAVELENGTH DIVISION MULTIPLEXING)

TRANSIENT ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 77
Author(s):  
Diana Murianti ◽  
Teguh Prakoso ◽  
Aghus Sofwan
Keyword(s):  
Fiber Bragg Grating ◽  
Wavelength Division Multiplexing ◽  
Bit Error Rate ◽  
Error Rate ◽  
Bragg Grating ◽  
Q Factor ◽  
Dense Wavelength Division Multiplexing ◽  
Wavelength Division

Pada era modern ini, tuntutan kebutuhan masyarakat akan layanan komunikasi semakin meningkat. Kebutuhan tersebut meliputi layanan  video, suara dan data. Penambahan kapasitas ini dapat dilakukan dengan menggunakan teknologi Dense Wavelength Division Multiplexing (DWDM). Salah satu perangkat yang digunakan teknologi DWDM yaitu Optical Add/Drop Multiplexer (OADM). OADM digunakan untuk melewatkan sinyal dan melakukan fungsi add dan drop. Salah satu perangkat yang mendukung untuk membantu kerja dari OADM adalah Fiber Bragg Grating (FBG). Tujuan pembuatan Penelitian ini adalah mendapatkan parameter desain FBG yang terbaik untuk jaringan DWDM berdasarkan nilai crosstalk, Q factor, dan Bit Error Rate (BER) guna memperoleh konfigurasi jaringan DWDM yang optimal. Pada Penelitian ini dilakukan dengan menggunakan dua software. Pertama, menggunakan software Optisystem 7 untuk memodelkan sistem. Kedua, menggunakan software Optigrating 4.2.3 untuk verifikasi FBG. Parameter desain FBG yang terbaik yaitu dengan panjang grating 18600 um. Berdasarkan hasil ko-simulasi, nilai rata–rata BER hasil simulasi menggunakan FBG Optisystem adalah 1,19x10-15, sedangkan saat menggunakan FBG Optigrating adalah 4,15x10-15. Nilai rata – rata Q Factor hasil simulasi menggunakan FBG Optisystem adalah 8,43, sedangkan saat menggunakan FBG Optigrating adalah 8,18. Nilai rata – rata crosstalk hasil simulasi menggunakan FBG Optisystem adalah -39,63 dB, sedangkan saat menggunakan FBG Optigrating adalah -39,72 dB.

scholarly journals Influence of ASE Noise on Performance of DWDM Networks Using Low-power Pumped Raman Amplifiers

2015 ◽  
Vol 25 (2) ◽  
pp. 147
Author(s):  
Bui Trung Ninh ◽  
Nguyen Quoc Tuan ◽  
Ta Viet Hung ◽  
Nguyen The Anh ◽  
Pham Van Hoi
Keyword(s):  
Low Power ◽  
Wavelength Division Multiplexing ◽  
Bit Error Rate ◽  
Error Rate ◽  
Network Performance ◽  
Noise Figure ◽  
Chromatic Dispersion ◽  
Low Noise ◽  
Wavelength Division ◽  
Raman Amplifiers

We present the results of investigation  for  influence of amplified spontaneous emission (ASE) noise, noise figure (NF) and  chromatic dispersion on the performance of middle-distance Dense-wavelength-division-multiplexing (DWDM) networks using low-power pumped distributed Raman amplifiers (DRAs) in two different pump configurations, i.e., forward and backward pumping. We found that the pumping configurations, ASE noise, and dispersion play an important role for improving network performance by decrease of noise figure and bit error rate (BER) of the system. Simulation results show that the lowest bit error rate and low noise figure were obtained, when using forward pumping configuration. Moreover, we have also compared ASE noise powers of the simulation with these of the experiment. These results conclude that DRA with low pump power  ($<1$~W) is the promising key technology for short-- and/or middle-distance DWDM transmission networks.

Study the Performance of Various Optical Amplifiers for 80 Channels WDM System Using Attenuator

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
◽  
Chakresh Kumar
Keyword(s):  
Wavelength Division Multiplexing ◽  
Semiconductor Optical Amplifier ◽  
Optical Amplifiers ◽  
Optical Amplifier ◽  
Data Rate ◽  
Q Factor ◽  
Eye Diagram ◽  
Wavelength Division ◽  
Transmission Distance ◽  
Erbium Doped

AbstractIn this paper we have study the performance of different optical amplifiers (Erbium doped amplifier (EDFA), RAMAN amplifier, and semiconductor optical amplifier (SOA)) for 80 channels wavelength division multiplexing (WDM) system with the data rate at 10 Gbps data rate for the transmission distance of 280 km After getting the results of these amplifiers the performance of these has to be compared The Q-factor values achieved better in EDFA as compared to SOA and RAMAN. While the BER getting good in SOA as compared with other amplifiers but in EDFA after 200 km it goes saturated, the Power achieved at the power estimator is getting better in EDFA optical amplifier while in other amplifier it achieved negative. At the end it is also study the Power with frequency in THz and the Eye Diagram of such amplifiers results.

scholarly journals Modified Unequally Spaced Channels Wavelength Division Multiplexing System

2008 ◽  
pp. 68-78
Keyword(s):  
Wavelength Division Multiplexing ◽  
Bit Error Rate ◽  
Error Rate ◽  
Four Wave Mixing ◽  
The Other ◽  
Wave Mixing ◽  
Wavelength Division ◽  
Unequally Spaced ◽  
Frequency Spacing ◽  
Active Channels

The channels contributed in creating new pulse during the four-wave mixing (FWM) process are a subject of two features: the first is the fact that all channels are not working with probability %100 , but with p probability. Second, the bits transmitted are not all "1". Therefore, the equation of power generated using these features should be corrected. On the other hand, the use of equally spaced channels wavelength divisionmultiplexing (ESC WDM) system cause an increase in the number of new components generated that interfere with the active channels and increase the bit error rate. In order to reduce these interferences, we have provided an unequally spaced channels wavelength division-multiplexing (USC WDM) system composed of several sets. Each set consists of only four channels, which locations have been selected to cause no interferences between them. Neighboring sets are separated by a frequency spacing which should be large enough to reduce the interferences between the sets, andsmall enough to increase the total number of channels of the system.

HỆ THỐNG PHÂN PHỐI KHÓA LƯỢNG TỬ ĐA KÊNH TỪ VỆ TINH SỬ DỤNG SCM-WDM

2021 ◽  
pp. 35-43
Author(s):  
Hiền
Keyword(s):  
Wavelength Division Multiplexing ◽  
Bit Error Rate ◽  
Error Rate ◽  
Free Space ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Secret Key ◽  
Quantum Bit ◽  
Wavelength Division ◽  
Free Space Optic

Phân phối khoá lượng tử QKD (Quantum Key Distribution) là giải pháp có khả năng đảm an ninh vô điều kiện nhờ áp dụng luật cơ lượng tử để phân phối khóa an toàn giữa hai bên hợp pháp với sự hiện diện của kẻ nghe lén. Sử dụng vệ tinh để phân phối khóa lượng tử tới các trạm mặt đất qua kênh quang không gian tự do FSO (Free Space Optic) là giải pháp hứa hẹn tạo ra một mạng QKD phạm vi toàn cầu. Tuy nhiên, do ảnh hưởng của kênh FSO, đặc biệt là nhiễu loạn khí quyển, tốc độ truyền khóa bí mật SKR (Secret Key Rate) của các hệ thống QKD hiện tại bị hạn chế. Do đó, nghiên cứu này đề xuất mô hình hệ thống QKD đa kênh dựa trên ghép kênh phân chia theo bước sóng WDM (Wavelength Division Multiplexing) và ghép kênh sóng mang phụ SCM (Sub Carrier Multiplexing) nhằm tăng SKR. Sử dụng phương pháp phân tích lý thuyết với các công cụ giải tích và xác suất, nhóm tác giả đã xây dựng các công thức tính toán SKR và tỉ lệ lỗi bit lượng tử của hệ thống đề xuất. Kết quả khảo sát hiệu năng cho thấy, hệ thống QKD đa kênh cho phép cải thiện SKR so với hệ thống đơn kênh trong khi vẫn đảm bảo yêu cầu về QBER (Quantum Bit Error Rate).

IMPACT OF ASE NOISE OF OPTICAL AMPLIFIER ON PIN-RECEIVER AND CALCULATION OF BIT-ERROR RATE

1996 ◽  
Vol 07 (03) ◽  
pp. 441-446
Author(s):  
QIANGSHENG XIANG ◽  
ANSHI XU ◽  
DEMING WU ◽  
LINZHEN XIE
Keyword(s):  
Optical Communication ◽  
Bit Error Rate ◽  
Error Rate ◽  
Optical Amplifiers ◽  
Optical Amplifier ◽  
Optical Channel ◽  
Simple Analytical Expression ◽  
Spectrum Density ◽  
The Impact

A simple analytical expression is derived to calculate the Bit-Error Rate in lightwave systems with optical amplifiers. According to this expression the Bit-Error Rate can be estimated by the signal power and the ASE spectrum density before the receiver. The theoretical calculation agrees with the experiment very well, so it can provide a method to judge the quality of the optical channel in the optical communication system with optical amplifiers. Futhermore, the impact of the ASE noise on the receiver sensitivity is discussed. It is important to select proper receivers in practical systems.

Bit Error Rate Performance Limitations Due to Raman Amplifier Induced Crosstalk in a WDM Transmission System

2017 ◽  
Vol 38 (1) ◽  
Author(s):  
F. H. Tithi ◽  
S. P. Majumder
Keyword(s):  
Pump Power ◽  
Wavelength Division Multiplexing ◽  
Bit Error Rate ◽  
Error Rate ◽  
Optical Signal ◽  
Transmission System ◽  
Raman Amplification ◽  
Wavelength Division ◽  
Channel Separation ◽  
Wdm Transmission

AbstractAnalysis is carried out for a single span wavelength division multiplexing (WDM) transmission system with distributed Raman amplification to find the effect of amplifier induced crosstalk on the bit error rate (BER) with different system parameters. The results are evaluated in terms of crosstalk power induced in a WDM channel due to Raman amplification, optical signal to crosstalk ratio (OSCR) and BER at any distance for different pump power and number of WDM channels. The results show that the WDM system suffers power penalty due to crosstalk which is significant at higher pump power, higher channel separation and number of WDM channel. It is noticed that at a BER 10

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