Photonic Analog-to-Digital Conversion [Paperback]

Provides a comprehensive look at the application of photonic approaches to the problem of analog-to-digital conversion. It looks into the progress made to date, discusses present research, and presents a glimpse of potential future technologies.

Photonic-based A/D conversion has received and continues to receive considerable attention as an alternative approach to providing enhanced resolution and speed in high-performance applications. Some of the potential advantages of using photonic technologies are high-speed clocking, broadband sampling, reduced mutual interference of signals, and compatibility with existing photonic-based systems. This book provides a comprehensive look at the application of photonic approaches to the problem of analog-to-digital conversion. It shows progress made, discusses present research, and gives a glimpse of potential future technologies.1. Introduction.- 1.1 The Role of A/D Conversion.- 1.2 Key Technological Challenges.- 1.3 Motivation for Photonic A/D Approaches.- 1.4 Organization of this Book.- 2. Performance Characteristics of Analog-to-Digital Converters.- 2.1 A/D Converter Characteristics.- 2.2 Sampling and Conversion Rate Characteristics.- 2.2.1 Sampling Rate.- 2.2.2 Conversion Rate.- 2.3 Performance Measures.- 2.3.1 Resolution.- 2.3.2 Dynamic Range, SQNR, and SNR Performance Measures..- 2.3.3 Spur-Free Dynamic Range.- 2.4 Performance Degradations.- 2.4.1 Two-Tone Intermodulation Distortion.- 2.4.2 Differential Nonlinearity.- 2.4.3 Integral Nonlinearity.- 2.4.4 Comparator Hysteresis.- 2.4.5 Thermal Noise.- 2.16 Aperture Jitter.- 2.4.7 Comparator Ambiguity.- 2.4.8 Observations.- Summary.- 3. Approaches to Analog-to-Digital Conversion.- 3.1 A/D Converter Coding Schemes.- 3.1.1 Thermometer Coding Scheme.- 3.1.2 Gray Code Coding Scheme.- 3.1.3 Circular Coding Scheme.- 3.2 Nyquist-Rate Converter Architectures.- 3.2.1 Fully Parallel or Flash A/D Conversion.- 3.2.2 Subranging A/D Conversion.- 3.2.3 Folding ArchitecturlC+