Ratio of conjugate to spontaneous emission in four-wave mixing in a DFB laser with use of its Iasing beam as pump beams

2005 ◽  
Author(s):  
H. Kuwatsuka ◽  
H. Shoji ◽  
T. Shimoyama ◽  
H. Ishikawa
Keyword(s):  
Spontaneous Emission ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Dfb Laser

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

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
Keyword(s):  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Four Wave Mixing ◽  
Wave Mixing

Suppression of Amplified Spontaneous Emission by the Four-Wave Mixing Process

1985 ◽  
Vol 55 (10) ◽  
pp. 1086-1089 ◽  
Author(s):  
Michelle S. Malcuit ◽  
Daniel J. Gauthier ◽  
Robert W. Boyd
Keyword(s):  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Mixing Process

THz frequency conversion using nondegenerate four-wave mixing process in a lasing long-cavity λ/4-shifted DFB laser

1995 ◽  
Vol 31 (24) ◽  
pp. 2108-2110 ◽  
Author(s):  
H. Kuwatsuka ◽  
M. Matsuda ◽  
H. Shoji ◽  
H. Ishikawa
Keyword(s):  
Frequency Conversion ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Mixing Process ◽  
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.

Nondegenerate four-wave mixing in a long-cavity λ/4-shifted DFB laser using its lasing beam as pump beams

1997 ◽  
Vol 33 (11) ◽  
pp. 2002-2010 ◽  
Author(s):  
H. Kuwatsuka ◽  
H. Shoji ◽  
M. Matsuda ◽  
H. Ishikawa
Keyword(s):  
Four Wave Mixing ◽  
Wave Mixing ◽  
Dfb Laser

Determination of spectral limits imposed by four-wave mixing and amplified spontaneous emission in the 1550 nm region

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 ◽  
...  
Keyword(s):  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Four Wave Mixing ◽  
Wave Mixing
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