Page 11 - Introduction to Information Optics

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8.4.5. Stacked-Layer 3-D Optical Storage 451
8.4.6. Photochemical Hole-Burning 3-D Storage 454
8.5. Holographic Optical Storage 454
8.5.1. Principle of Holography 455
8.5.2. Plane Holographic Storage 456
8.5.3. Stacked Holograms for 3-D Optical Storage 458
8.5.4. Volume Holographic 3-D Optical Storage 460
8.6. Near Field Optical Storage 461
8.7. Concluding Remarks 461
References 465
Exercises 468

Chapter 9 Computing with Optics 475
9.1. Introduction 476
9.2. Parallel Optical Logic and Architectures 477
9.2.1. Optical Logic 477
9.2.2. Space-Variant Optical Logic 481
9.2.3. Programmable Logic Array 481
9.2.4. Parallel Array Logic 485
9.2.5. Symbolic Substitution 486
9.2.6. Content-Addressable Memory 488
9.3. Number Systems and Basic Operations 489
9.3.1. Operations with Binary Number Systems 489
9.3.2. Operations with Nonbinary Number Systems 499
9.4. Parallel Signed-Digit Arithmetic 501
9.4.1. Generalized Signed-Digit Number Systems 501
9.4.2. MSD Arithmetic 503
9.4.3. TSD Arithmetic 530
9.4.4. QSD Arithmetic 534
9.5. Conversion between Different Number Systems 543
9.5.1. Conversion between Signed-Digit and Complement Number Systems 544
9.5.2. Conversion between NSD and Negabinary Number Systems 546
9.6. Optical Implementation 549
9.6.1. Symbolic Substitution Implemented by Matrix-Vector Operation 549
9.6.2. SCAM-Based Incoherent Correlator for QSD Addition 551
9.6.3. Optical Logic Array Processor for Parallel NSD Arithmetic 558
9.7. Summary 560
References 562
Exercises 569

Chapter 10 Sensing with Optics 571
10.1. Introduction 57!
10.2. A Brief Review of Types of Fiber-Optic Sensors. 572
10.2.1. Intensity-Based Fiber-Optic Sensors 572
10.2.2. Polarization-Based Fiber-Optic Sensors 575
10.2.3. Phase-Based Fiber Optic Sensors 583
10.2.4. Frequency (or Wavelength)-Based Fiber-Optic Sensors 587