Analyzing DWDM System with Different Modulation Formats and Channel Spacing

2019 ◽  
Vol 40 (3) ◽  
pp. 315-322
Author(s):  
Kulwinder Singh ◽  
Navpreet Singh ◽  
Kamaljit Singh Bhatia ◽  
Hardeep Singh Ryait
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Performance Parameters ◽  
Channel Spacing ◽  
Modulation Formats ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
Eye Opening ◽  
Eye Closure ◽  
Dwdm System

Abstract Different modulation formats for 64×20-GB/s dense wavelength division multiplexed (DWDM) system has been compared and simulated using Optsim. Various performance parameters including Q-factor, bit error rate, jitter, eye opening & eye closure are observed and analyzed. It is reported that RZ Soliton format is a better choice among the tested formats. Also, for the proposed system, minimum channel spacing should be 50 GHz.

Performance Analysis of High Data Rate Wavelength Division Multiplexed Passive Optical Networks (WDM-PON) for Mobile Backhaul Application

Frequenz ◽  
2018 ◽  
Vol 72 (11-12) ◽  
pp. 561-573 ◽  
Author(s):  
Vivek Kachhatiya ◽  
Shanthi Prince
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Discrete Data ◽  
Data Rate ◽  
Passive Optical Network ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
Data Rates ◽  
Mobile Backhaul ◽  
Wdm Pon

Abstract In this work, we propose a sixteen channel wavelength division multiplexed passive optical network (WDM-PON) architecture which provides seamless connectivity between mobile switching center (MSC) and base transceiver stations (BTS) and also serves the fiber to the home (FTTH) users. WDM-PON based mobile backhaul network is considered to be a prime solution due to its quick deployment and reduced cost. Due to growing demand for connectivity and data transmission, the number of wavelengths are increasing day by day. The bit error rate (BER) performance is analyzed for the discrete data rates per wavelength (viz. 2.5 Gbps, 5 Gbps, 10 Gbps, 20 Gbps, and 40 Gbps) at discrete reach for 16 channel WDM-PON. The optical spectrum of sixteen channel WDM-PON is observed for different data rates at multiplexer output and the same is analyzed after fiber distance of 20 km. The fiber reach of the WDM-PON is varied, and its effect on the performance parameter like bit error rate (BER) and Quality Factor (Q-Factor) is observed on BER analyzer for the discrete data rates per wavelength. It is found that as data rate per wavelength increases, the error-free reach of the WDM-PON system decreases. Proposed WDM-PON architecture performs superior to the compared work under similar initial conditions.

Modified DP-Q and MGF BER

2015 ◽  
pp. 285-296
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Single Channel ◽  
Qualitative Behavior ◽  
Differential Phase Shift ◽  
Wavelength Division ◽  
Differential Phase ◽  
Wavelength Division Multiplexed ◽  
Shift Keying ◽  
Point To Point

The optical return-to-zero differential phase shift keying system is analyzed in this chapter to determine the accuracy of the recently proposed differential phase Q method in estimating the bit error rate. It is found that this method consistently underestimates the bit error rate though it successfully predicts the qualitative behavior of single channel and wavelength division multiplexed systems for back-to-back and point-to-point configurations. A simple modification reduced the underestimation and produced highly accurate estimation.

Investigation of 16 × 10 Gbps DWDM System Based on Optimized Semiconductor Optical Amplifier

2017 ◽  
Vol 38 (3) ◽  
Author(s):  
Aruna Rani ◽  
Sanjeev Dewra
Keyword(s):  
Optical System ◽  
Bit Error Rate ◽  
Error Rate ◽  
Input Signal ◽  
Semiconductor Optical Amplifier ◽  
Optical Amplifier ◽  
Signal Power ◽  
Channel Spacing ◽  
Input Signal Power ◽  
Dwdm System

AbstractThis paper investigates the performance of an optical system based on optimized semiconductor optical amplifier (SOA) at 160 Gbps with 0.8 nm channel spacing. Transmission distances up to 280 km at –30 dBm input signal power and up to 247 km at –32 dBm input signal power with acceptable bit error rate (BER) and

scholarly journals Novel Raman Parametric Hybrid L-Band Amplifier with Four-Wave Mixing Suppressed Pump for Terabits Dense Wavelength Division Multiplexed Systems

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Gaganpreet Kaur ◽  
Sanjay Sharma ◽  
Gurmeet Kaur
Keyword(s):  
Four Wave Mixing ◽  
Parametric Amplifier ◽  
Wave Mixing ◽  
Channel Spacing ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
Gain Flattening ◽  
L Band ◽  
Improved Performance ◽  
Dwdm System

We demonstrate improved performance of parametric amplifier cascaded with Raman amplifier for gain of 54.79 dB. We report amplification of L-band using 100 × 10 Gbps Dense Wavelength Division Multiplexed (DWDM) system with 25 GHz channel spacing. The gain achieved is the highest reported so far with gain flatness of 3.38 dB without using any gain flattening technique. Hybrid modulated parametric pump is used for suppressing four-wave mixing (FWM) around pump region, resulting in improvement of gain flatness by 2.42 dB. The peak to peak variation of gain is achieved less than 1.6 dB. DWDM system with 16-channel, 25 GHz spaced system has been analyzed thoroughly with hybrid modulated parametric pump amplified Raman-FOPA amplifier for gain flatness and improved performance in terms of BER and Q-factor.

scholarly journals Performance Analysis of Hybrid Optical Amplifiers for 32 Channel WDM System at 10 Gbps Bit Rate for WAN Applications

2019 ◽  
Vol 41 (1) ◽  
pp. 23-29
Author(s):  
Apoorva ◽  
Priyanka ◽  
Himanshu Wadhwa ◽  
Gurjit Kaur
Keyword(s):  
Performance Analysis ◽  
Quality Factor ◽  
Bit Error Rate ◽  
Error Rate ◽  
Optical Amplifiers ◽  
Research Paper ◽  
Q Factor ◽  
Performance Parameters ◽  
Transmission Distance ◽  
Eye Opening

Abstract In this paper, we have simulated an optical 32 channel WDM system with 10 Gbps data rate for various hybrid amplifiers at varying lengths. Stand-alone EDFA gives better performance than other individual amplifiers but when hybrid with Raman amplifier, the performance of the WDM system is enhanced. A lot of researchers are working on the hybrid amplifiers like EDFA and Raman. In this research paper we have also included latest amplifier such as Ytterbium and Praseodymium amplifiers and the performance of the various hybrid combinations is compared. So, different hybrid amplifiers such as Raman-EDFA, EDFA-Yb, Raman-Yb, EDFA-Pr and Raman-Pr have been analyzed for performance parameters like quality factor, bit error rate, eye height and channel power. The analysis shows that EDFA-Pr has maximum Q-factor of 15.4883 at 80 km. EDFA-Pr has a maximum eye opening of 0.00534 at 80 km of length but at 120 km transmission distance EDFA-Yb shows maximum eye opening of 0.00154. Below 100 km of transmission distance, EDFA-Pr shows minimum BER value ranging from 10–54 to 10–20 but as the length is increased above 100 km EDFA-Yb shows better performance with values ranging from 10–16 to 10–09.

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.

Investigations of Different Amplifiers in 16 × 40 Gb/S WDM System

2019 ◽  
Vol 40 (4) ◽  
pp. 341-346
Author(s):  
Kulwinder Singh ◽  
Karan Goel ◽  
Kamaljit Singh Bhatia ◽  
Hardeep Singh Ryait
Keyword(s):  
Wavelength Division Multiplexing ◽  
Fiber Amplifier ◽  
Optical Amplifier ◽  
Fiber Amplifiers ◽  
Erbium Doped Fiber Amplifier ◽  
Wavelength Division ◽  
Transmission Distance ◽  
Erbium Doped ◽  
Eye Opening ◽  
Eye Closure

Abstract Different fiber amplifiers such as semiconductor optical amplifier, erbium-doped fiber amplifier and erbium ytterbium-co-doped fiber amplifier (EYCDFA) are investigated for 16×40 GB/s wavelength division multiplexing system. Various performance parameters including Q-factor, bit error rate, jitter, eye opening and eye closure are observed and analyzed. It is reported that EYCDFA is a better choice among the tested amplifiers. The proposed system is also investigated in terms of transmission distance.

Suppress the FWM by Increasing Channel Spacing and Chromatic Dispersion of Fiber in WDM System

2015 ◽  
Vol 36 (3) ◽  
Author(s):  
Veerpal Kaur ◽  
Kamaljit Singh Bhatia
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Chromatic Dispersion ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Q Factor ◽  
Output Spectrum ◽  
Channel Spacing ◽  
Maximum Value

AbstractIn this paper, we investigate the effect of channel spacing and chromatic dispersion on four wave mixing in WDM system. Dominating effect of four wave mixing is minimizing at maximum value of dispersion and channel spacing. Power of FWM, Q-factor, bit error rate and output spectrum is used to measure the performance of system.

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.

Transmission Performance Comparison of 16*100 Gbps Dense Wavelength Division Multiplexed Long Haul Optical Networks at Different Advance Modulation Formats under the Influence of Nonlinear Impairments

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Farman Ali ◽  
Yousaf Khan ◽  
Shahryar Shafique Qureshi
Keyword(s):  
Optical Fiber ◽  
Optical Networks ◽  
Dispersion Compensation ◽  
Performance Comparison ◽  
Network System ◽  
Modulation Formats ◽  
Fiber Network ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
Modulation Format

AbstractHigher spectral efficiency and data rate per channel are the most cost-effective approaches to meet the exponential demand of data traffic in optical fiber network communication system. In this paper, diverse modulation formats are analyzed for Dense Wavelength Division Multiplexed system at 100 Gbps * 16=1600 Gbps data rates. The performance analysis of proffered system for Non-Return to Zero, Return to Zero, Carrier- Suppressed Return to Zero and Duo binary RZ with duty cycle 0.5 to 0.7 ranges like modulation formats are considered to find optimum modulation format for a 100 Gbps bit rate per channel optical fiber transmission network system. The simulations are analyzed for different values of input power, length of fiber, nonlinear refractive index, nonlinear dispersion and nonlinear effective area for all above mentioned modulation formats with spacing 100 to 250 GHz. to evaluate the effect of modulation format Fiber Bragg Gratting, optical fiber amplifier and Dispersion Compensation Fiber dispersion compensation techniques are enacted on this proposed optical network system.

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