Competition between four-wave mixing and amplified spontaneous emission

1987 ◽  
Vol 37 (1-4) ◽  
pp. 125-139 ◽  
Author(s):  
Michelle S. Malcuit ◽  
Daniel J. Gauthier ◽  
Robert W. Boyd
1985 ◽  
Vol 55 (10) ◽  
pp. 1086-1089 ◽  
Author(s):  
Michelle S. Malcuit ◽  
Daniel J. Gauthier ◽  
Robert W. Boyd

Laser Physics ◽  
2015 ◽  
Vol 25 (4) ◽  
pp. 045110
Author(s):  
J A Alvarez-Chavez ◽  
R Sanchez-Lara ◽  
F Martinez-Piñon ◽  
F Mendez-Martinez ◽  
L de la Cruz-May ◽  
...  

1987 ◽  
Vol 35 (4) ◽  
pp. 1648-1658 ◽  
Author(s):  
Robert W. Boyd ◽  
Michelle S. Malcuit ◽  
Daniel J. Gauthier ◽  
Kazimierz Rza̧ewski

2015 ◽  
Vol 36 (3) ◽  
Author(s):  
Minglei Fu ◽  
Ke Meng ◽  
Zhicheng Chai ◽  
Yuling Liu ◽  
Zichun Le

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.


2018 ◽  
Vol 14 (1) ◽  
pp. 5268-5274
Author(s):  
Peng Dong

Broadband spectral inversion was proved theoretically to be an effective method to compensate power depletion due to stimulated Raman scattering in high-power delivery fiber. A critical difficulty in implementing the method in experiment is to realize broadband spectral inversion of incoherent light as Raman Stokes waves are incoherent due to their origin from spontaneous emission noise. Broadband spectral inversion of incoherent light is investigated experimentally in this article. A beam from an amplified spontaneous emission (ASE) light source is used as an approximated Raman Stokes waves in the experiment. ASE Spectrum of width of 10.5nm is inverted via four-wave mixing in a highly nonlinear dispersion-shifted fiber in efficiency of -10dB without significant spectrum deformation. A theoretical model for four-wave mixing of ASE incoherent light is established, and based on which the limitation in more broadband spectral inversion of ASE incoherent light is analyzed.


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