THE OPTICAL COMPUTER-Presentation.pptx - THE OPTICAL COMPUTER Ceren Ko� 150702022 OPTOELECTRONICS 2 What is Optoelectronics • In optoelectronics the

THE OPTICAL COMPUTER-Presentation.pptx - THE OPTICAL...

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THE OPTICAL COMPUTER Ceren Koç 150702022
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OPTOELECTRONICS 2
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What is Optoelectronics? In optoelectronics, the conversion of light and electrical energy is achieved with the help of a receiver or transmitter that can interact with light energy. Optoelectronics is a specific discipline of electronics: 1. Light-Emitting Devices 2. Light-Detecting Devices 3
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Main Devices: Semiconductor lasers and detectors Nonlinear optical systems Novel devices (carbon-based, plasmonic) 4
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Optical Signals Signal selection factors: -Operating frequency -Speed -Environment Characteristic -Transmission Distance 5
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Modulation The process of changing parameters such as amplitude, frequency, phase to convert the signal to photo signal. The generated signal is not affected by external effects. 6
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Modulation of the Optical Signal Amplitude Modulation Frequency Modulation Phase Modulation 7
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Amplitude Modulation A type of modulation used in communication technology Denoted by AM The carrier is sine wave in amplitude modulation. 8
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Frequency Modulation A type of modulation used in communication technology. Denoted by FM The carrier is sine wave in amplitude modulation. 9
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Phase Modulation A type of modulation used in comunication technology Denoted by PM. The modulating wave (blue) is modulating the carrier wave (red), resulting the PM signal (green). g(t) = π/2 * sin(2*2πt+ π/2*sin(3*2πt)) 10
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Optical Elements Lenses Reflectors Refractor Optical Filters 11
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Lenses Used in optical systems to collect light or focus at a single point. According to the wavelength of the light in the system, lenses made of glass, quartz or plastic are selected. 12
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There are two type of lens: Collects light Scatters light 13
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Reflectors, Refractors, and Optical Filters Reflectors are used to change the direction or angle of the incoming beam.
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