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20 Outubro 2022, 14:30 • Rita Sousa

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Datasheet analysis of lasers. Mach-Zehnder modulators: input-output characteristic, bias point, extinction ratio and frequency limitation. Linearized Mach-Zehnder modulator characteristic for the quadrature and minimum bias points. Introduction to external modulation of digital signals: analysis of the impact of linear and nonlinear conversion on the eye diagram through simulation. Questions related to the first work.

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13 Outubro 2022, 16:00 • Rita Sousa

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Optical transmitters: external and direct modulation. Introduction to Mach-Zehnder modulators: field and power input-output characteristic and bias point.

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13 Outubro 2022, 14:30 • Rita Sousa

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Delay response of filters and its graphic. Analysis of filter delay distortion from the delay response. Data sequences: generation of pseudo random binary sequences and deBruijn sequences. Properties of deBruijn sequences. Simulation of optical communication systems: main blocks. Optical transmitters and optical sources.

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6 Outubro 2022, 16:00 • Rita Sousa

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Low-pass equivalent representation of signals and systems. Features of low-pass equivalent filters and signals. Data sequences: generation of pseudo random binary sequences and deBruijn sequences.

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6 Outubro 2022, 14:30 • Rita Sousa

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Eye diagram. Development of a simulator emulating the filtering of an NRZ signal by a Bessel and a Butterworth filter. Features of the filtering of an NRZ signal by a Bessel and a Butterworth filter. Drawing of the eye diagram and information extracted from the eye diagram.