Chromatic Dispersion
Mostrando 13-18 de 18 artigos, teses e dissertações.
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13. On the study of the nonlinear effects of both Self-Phase and Cross-Phase Modulation in optical fibers / Estudo dos Efeitos Não Lineares de Automodulação de Fase e Modulação de Fase Cruzada em Fibras Ópticas
In this work some phenomena that occur during the propagation of pulses of light in optical fibers [1], [7], [13], [16], [18], [20], [21], [22], [24], [25], [59] e [60] are studied. The study is based on the Nonlinear Schrödinger Equation (NLS), gotten in Chapter 2 from the equations of Maxwell, considering a nonlinear susceptibility. The adopted mathematic
Publicado em: 2003
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14. ESTUDIO DE LA DISPERSIÓN CROMÁICA Y EFECTOS NO LINEALES EN FIBRAS DE DISPERSIÓN DESPLAZADA / STUDY OF CHROMATIC DISPERSION AND NONLINEAR EFFECTS IN SHIFTED DISPERSION FIBER OPTIC SYSTEM / ESTUDO DA DISPERSÃO CROMÁTICA E EFEITOS NÃO LINEARES EM FIBRAS DE DISPERSÃO DESLOCADA
This work presents a study on the mathematical determination of the total chromatic dispersion, zero dispersion wavelength and nonlinear optical effects in dispersion shifted (DS) fiber optic system. A methodology to determine the chromatic dispersion and zero dispersion wavelength is proposed using the equivalent step index model and the similarity of the t
Publicado em: 2001
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15. ANÁLISE DO FENÔMENO DE MISTURA DE QUATRO ONDAS EM SISTEMAS ÓPTICOS MULTICANAL / THE FOUR-WAVE MIXING ISSUE IN OPTICAL MULTICHANNEL SYSTEMS
Neste trabalho, uma análise do fenômeno de mistura de quatro ondas (FWM) em sistemas ópticos multicanais é apresentada. Inicialmente, uma série de simulações determina as limitações impostas aos sistemas ópticos, sendo adotado um nível máximo de crosstalk permitido. Em seguida, os diversos parâmetros que influenciaram a eficiência da geração
Publicado em: 1997
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16. Medida de espessura de filmes finos com interferometro de haidinger
We introduce a non-destructive method for the thickness measurement of thin transparent films coated on transparent substrates, using a Haidinger interferometer. From the interference fractions measured for various wavelengths, and the refraction index for only one wavelength, we determine the film thickness and its chromatic dispersion through an analytic-n
Publicado em: 1987
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17. The effect of chromatic dispersion on pseudophakic optical performance
BMJ Group.
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18. Longitudinal chromatic aberration and emmetropization: results from the chicken eye.
1. Due to the chromatic dispersion of the ocular media, the focal length of the optics of the eye is about 3 diopters longer for red light than for blue light. Because emmetropization in the chicken (Gallus domesticus) does not require colour cues and operates properly in monochromatic light, one can, therefore, expect that chickens raised in red light becom