scholarly journals Quadruple multi-wavelength conversion for access network scalability based on cross-phase modulation in an SOA-MZI

Open Physics ◽  
2017 ◽  
Vol 15 (1) ◽  
pp. 1077-1085 ◽  
Author(s):  
Mohammad Syuhaimi Ab-Rahman ◽  
Abdulhameed Almabrok Swedan
Keyword(s):  
Phase Modulation ◽  
Data Exchange ◽  
Continuous Wave ◽  
Single Channel ◽  
Extinction Ratio ◽  
Optical Amplifier ◽  
Optical Signal ◽  
Wavelength Converter ◽  
Cross Phase Modulation ◽  
Multi Wavelength

AbstractThe emergence of new services and data exchange applications has increased the demand for bandwidth among individuals and commercial business users at the access area. Thus, vendors of optical access networks should achieve a high-capacity system. This study demonstrates the performance of an integrated configuration of one to four multi-wavelength conversions at 10 Gb/s based on cross-phase modulation using semiconductor optical amplifier integrated with Mach–Zehnder interferometer. The Opti System simulation tool is used to simulate and demonstrate one to four wavelength conversions using one modulated wavelength and four probes of continuous wave sources. The wavelength converter processes are confirmed through investigation of the input and output characteristics, optical signal-to-noise ratio, conversion efficiency, and extinction ratio of new modulated channels after separation by demultiplexing. The outcomes of the proposed system using single channel indicate that the capacity can increase from 10 Gb/s to 50 Gb/s with a maximum number of access points increasing from 64 to 320 (each point with 156.25 Mb/s bandwidth). The splitting ratio of 1:16 provides each client with 625 Mb/s for the total number of 80 users. The Q-factor and bit error rate curves are investigated to confirm and validate the modified scheme and prove the system performance of the full topology of 25 km with 1/64 splitter. The outcomes are within the acceptable range to provide the system scalability.

All-Optical XOR Logic Gates: Insights and Comparisons

2015 ◽  
Vol 815 ◽  
pp. 353-358 ◽  
Author(s):  
Mohd Azarulsani Md Azidin ◽  
M.H.A. Wahid ◽  
N.A.M. Ahmad Hambali ◽  
M.M. Shahimin ◽  
A. Zakiah Malek
Keyword(s):  
Phase Modulation ◽  
Signal To Noise Ratio ◽  
Logic Gate ◽  
Extinction Ratio ◽  
Logic Gates ◽  
Optical Amplifier ◽  
Optical Signal ◽  
Signal Quality ◽  
Gain Modulation ◽  
All Optical

Three XOR photonics logic gate configurations namely semiconductor optical amplifier-Mach Zender interferometer cross phase modulation (SOA-MZI XPM), SOA-MZI cross gain modulation (XGM) and terahertz optical asymmetrical demultiplexer (TOAD) XOR are analysed and compared in terms of generated power, optical signal-to-noise ratio (OSNR) values and bit error rate (BER) signal quality. The highest generated power is possessed by the TOAD at 23.5 dBm, the SOA-MZI XPM showed the most extinction ratio or OSNR with 109.6 dB whereas the best BER is recorded in the SOA-MZI XGM at 4.42 x 10-22.

To Mitigate the Effect of Cross-Phase Modulation by Employing PC-DCF Technique in Multi-Tone RoF System

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Namita Kathpal ◽  
Amit Kumar Garg
Keyword(s):  
Optical Networks ◽  
Wavelength Division Multiplexing ◽  
Phase Modulation ◽  
Performance Metrics ◽  
Signal To Noise Ratio ◽  
Optical Signal ◽  
Input Power ◽  
System Capacity ◽  
Bit Rate ◽  
Cross Phase Modulation

AbstractIt is known that the high bandwidth demands are accomplished by deploying the concept of wavelength division multiplexing in optical networks which involves the transmission of multiple wavelength signals spaced very close to each other. Due to closely spaced wavelengths, the signal power of one channel phase modulates the adjacent channel which in turn produces nonlinear effects such as cross-phase modulation (XPM), self-phase modulation (SPM) and four-wave mixing (FWM). Thus, in this paper, PC-DCF (pre-compensating dispersion compensating fiber) technique has been demonstrated and evaluated in the transmission link to compensate the XPM effects, and this result seems to significantly enhance w.r.t. transmission performance and system capacity considering performance metrics such as Optical Signal to Noise Ratio (OSNR), bit rate, Q-factor and bit error rate (BER). It is evident from the simulation results as well as through mathematical modeling that the proposed technique (PC-DCF) provides optimum results at the channel spacing of 100 GHz, bit rate of 10 Gbps and input power of 5 mW which collectively provides a 5 dB increase in OSNR as compared to the existing compensating technique.

scholarly journals A tunable WDM wavelength converter based on cross-phase modulation effects in normal dispersion holey fiber

2003 ◽  
Vol 15 (3) ◽  
pp. 437-439 ◽  
Author(s):  
Ju Han Lee ◽  
Z. Yusoff ◽  
W. Belardi ◽  
M. Ibsen ◽  
T.M. Monro ◽  
...  
Keyword(s):  
Phase Modulation ◽  
Wavelength Converter ◽  
Cross Phase Modulation ◽  
Normal Dispersion ◽  
Holey Fiber

A Single to Multi-Wavelength Converter Using Fabry–Perot Laser Diode with Linear Optical Amplifier

2004 ◽  
Vol 43 (9A) ◽  
pp. 6125-6128
Author(s):  
Jeung-Mo Kang ◽  
Yong Ook Kim ◽  
Sang-Kook Han ◽  
Seok Lee
Keyword(s):  
Laser Diode ◽  
Optical Amplifier ◽  
Wavelength Converter ◽  
Fabry Perot ◽  
Multi Wavelength ◽  
Linear Optical

scholarly journals Cross-Phase Modulation Based Ultra-Flat 90-Line Optical Frequency Comb Generation

2021 ◽  
Author(s):  
Vishal Sharma ◽  
surinder singh ◽  
Lovkesh Bhatia ◽  
Elena A. Anashkina ◽  
Alexey V. Andrianov
Keyword(s):  
Phase Modulation ◽  
Frequency Comb ◽  
Optical Signal ◽  
Optical Frequency Comb ◽  
Optical Frequency ◽  
Cross Phase Modulation ◽  
Central Wavelength ◽  
Highly Nonlinear ◽  
Line Spacing ◽  
Comb Generation

Abstract This paper proposed an approach to design an evenly spaced, 1.8 THz spectrally broad and 1.6 dB flat optical frequency comb (OFC) by exploiting the cross-phase modulation in highly nonlinear fiber. The OFC is realized by controlling the phase of the signals in two parallelly placed highly nonlinear fibers. The frequency and line spacing of the OFC can be tuned by simply varying the periodicity and central wavelength of input electrical and optical signal, respectively.

scholarly journals Optimization of system’s parameters for wavelength conversion of E-band signals

2022 ◽  
Vol 12 (2) ◽  
pp. 1659
Author(s):  
Yazan Alkhlefat ◽  
Sevia Mahdaliza Idrus Sutan Nameh ◽  
Farabi M. Iqbal
Keyword(s):  
Communication Systems ◽  
Orthogonal Frequency Division Multiplexing ◽  
High Speed ◽  
Wavelength Conversion ◽  
Signal To Noise Ratio ◽  
Optical Amplifier ◽  
Optical Signal ◽  
Error Vector Magnitude ◽  
Wavelength Converter ◽  
High Data

Current and future wireless communication systems are designed to achieve the user’s demands such as high data rate and high speed with low latency and simultaneously to save bandwidth and spectrum. In 5G and 6G networks, a high speed of transmitting and switching is required for internet of things (IoT) applications with higher capacity. To achieve these requirements a semiconductor optical amplifier (SOA) is considered as a wavelength converter to transmit a signal with an orthogonal frequency division multiplexing with subcarrier power modulation (OFDM-SPM). It exploits the subcarrier’s power in conventional OFDM block in order to send additional bits beside the normally transmitted bits. In this paper, we optimized the SOA’s parameters to have efficient wavelength conversion process. These parameters are included the injection current (IC) of SOA, power of pump and probe signals. A 7 Gbps OFDM-SPM signal with a millimeter waves (MMW) carrier of 80 GHz is considered for signal switching. The simulation results investigated and analyzed the performance of the designed system in terms of error vector magnitude (EVM), bit error rate (BER) and optical signal-to-noise ratio (OSNR). The optimum value of IC is 0.6 A while probe power is 9.45 and 8.9 dBm for pump power. The simulation is executed by virtual photonic integrated (VPI) software.

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