Field-trial evaluation of the Q-factor penalty introduced by fiber four-wave mixing wavelength converters

2009 ◽  
Vol 282 (1) ◽  
pp. 106-116 ◽  
Author(s):  
J.D. Marconi ◽  
F.A. Callegari ◽  
M.L.F. Abbade ◽  
H.L. Fragnito
Keyword(s):  
Field Trial ◽  
Four Wave Mixing ◽  
Wavelength Converters ◽  
Wave Mixing ◽  
Q Factor

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.

Nondegenerate four-wave mixing efficiencies in DFB laser wavelength converters

1998 ◽  
Vol 10 (4) ◽  
pp. 519-521 ◽  
Author(s):  
B.E. Little ◽  
H. Kuwatsuka ◽  
H. Ishikawa
Keyword(s):  
Four Wave Mixing ◽  
Laser Wavelength ◽  
Wavelength Converters ◽  
Wave Mixing ◽  
Dfb Laser

Physical Layer Impairment Model for CO-OFDM System Considering Amplified Spontaneous Emission and Four-wave Mixing

2015 ◽  
Vol 36 (3) ◽  
Author(s):  
Minglei Fu ◽  
Ke Meng ◽  
Zhicheng Chai ◽  
Yuling Liu ◽  
Zichun Le
Keyword(s):  
Spontaneous Emission ◽  
Fiber Length ◽  
Factor Versus ◽  
Four Wave Mixing ◽  
Physical Layer ◽  
Input Power ◽  
Wave Mixing ◽  
Q Factor ◽  
Ofdm System ◽  
Ofdm Signal

AbstractIt’s known that different physical impairments can occur in coherent optical orthogonal frequency division multiplexing (CO-OFDM) system. Not only linear impairments but also nonlinear impairments can cause significant signal degradations. It is important to analyze the physical layer impairment (PLI) model which should consider these impairments. In this paper, a new PLI model is developed, where amplified spontaneous emission (ASE) categorized to linear impairments and four-wave mixing (FWM) categorized to nonlinear impairments are regarded as the main noise sources. The performance of developed PLI model in terms of Q factor versus number of subcarriers and Q factor versus fiber length are extensively simulated. Numerical results show that when the OFDM signal passes through fiber link, the noise power expansion occurs. This expansion which is related to the fiber length, number of subcarriers as well as input power, can cause higher degradation in OFDM signal. Through precise analysis, optimum parameters of the transmission system can be chosen. Simulations prove that Q factor of CO-OFDM, whose number of subcarriers is 128, fiber length is 90 km and input power is −2 dBm, is up to abound 10 dB. In addition, in order to verify the developed PLI model, comparisons of the situation with and without considering FWM effects have also been made respectively. Results show that the performance of the model conforms to the actual conditions.

scholarly journals Michelson interferometer system with acoustic optic filter and fiber Bragg grating for reduction of four-wave mixing

2019 ◽  
Vol 15 (7) ◽  
Author(s):  
Fabio Barros De Sousa ◽  
Jorge Everaldo De Oliveira ◽  
Fiterlinge Martins De Sousa ◽  
Marcio Benedito Caldas Costa ◽  
Osmar Tharlles Borges De Oliveira ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Performance Metrics ◽  
Michelson Interferometer ◽  
Single Mode ◽  
Four Wave Mixing ◽  
Optical Signal ◽  
Input Power ◽  
Bragg Grating ◽  
Wave Mixing ◽  
Q Factor

In this paper a simplified design and efficient of a Michelson Interferometer (MI) system is presented, capable of reducing the Four-Wave Mixing (FWM) effects, using fiber Bragg grating and acoustic optic filter (FBG and AOF) with the aid of a highly non-linear photonic crystal fiber (HNL-PCF). The analysis of the MI system based in FBG and AOF was performed according to the effect of fiber length and input power by performance metrics: Optical Spectrum, maximum Quality factor (max. Q-factor), minimum bit error rate (min. BER), eye height, optical signal-to-noise ratio (OSNR) and timing jitter. The numerical simulation results showed that the MI system with FBG and AOF maintained a good signal performance, with Q-factor equal to 33.3 even after 100 km of single mode fiber (SMF) and with downstream signal power by up to 10 dBm.

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