Light Propagation in Ideal Multimode Fibers / 1: |
Outline of the Electromagnetic Model / 1.1: |
General Considerations / 1.1.1: |
Exact Electromagnetic Theory of Round Step-Index Fibers / 1.1.2: |
Approximate Evaluation of the Total Number of Guided Modes / 1.1.3: |
WKB Approximate Solution for Graded-Index Fibers / 1.1.4: |
The Ray-Optics Model / 1.2: |
Light Acceptance in Step Index Fibers / 1.2.1: |
Correspondence between Modes and Rays / 1.2.2: |
Light Acceptance in Graded-Index Fibers / 1.2.3: |
General Ray-Optics in Inhomogeneous Media / 1.2.4: |
Constants of the Motion / 1.2.5: |
Ray Tracing / 1.2.6: |
Ray Domain / 1.2.7: |
The Radiance Law / 1.2.8: |
Ray Distribution / 1.2.9: |
Domain (r[subscript 1], theta[subscript 1]) / 1.2.10: |
Intermodal Time Dispersion / 1.3: |
Time Dispersion in Step-Index Fibers / 1.3.1: |
alpha-Profiles / 1.3.2: |
WKB Approximation for [characters not producible]-Profiles / 1.3.3: |
Effects of Leaky Modes / 1.3.4: |
Ray-Optics Approach for [characters not producible]-Profiles / 1.3.5: |
The rms Pulsewidth / 1.3.6: |
Simplified Description of the Launching Condition / 1.3.7: |
Effects of the Launching Condition / 1.3.8: |
Effects of Profile Imperfections / 1.3.9: |
Compensation Effect of Time Dispersion in Fiber Chains / 1.3.10: |
Intramodal Time Dispersion / 1.4: |
Group Delays in the Presence of Material Dispersion / 1.4.1: |
Effects of the Finite Extension of the Source Spectral Width / 1.4.2: |
Wavelength of Zero Material Dispersion / 1.4.3: |
Total Time Dispersion / 1.4.4: |
Optimum Index Profile in the Presence of Material Dispersion / 1.4.5: |
Linear Profile Dispersion / 1.4.6: |
Nonlinear Profile Dispersion / 1.4.7: |
Real Fibers / 2: |
Intrinsic Attenuation / 2.1: |
Causes of Intrinsic Attenuation / 2.1.1: |
Absorption Loss / 2.1.2: |
Scattering Loss / 2.1.3: |
Fiber Perturbations / 2.2: |
Kinds of Fiber Perturbation / 2.2.1: |
Outline of the Electromagnetic Approach to the Study of Fiber Perturbations / 2.2.2: |
Ray-Optics Approach to Core Diameter Fluctuations / 2.2.3: |
Ray-Optics Approach to Microbending / 2.2.4: |
Optical Power Flow Equation in the Electromagnetic Model / 2.2.5: |
Optical Power Flow Equation in the Ray-Optics Model / 2.2.6: |
Solutions of the Optical Power Flow Equation / 2.2.7: |
The Time-Dependent Equation / 2.2.8: |
Transmission Properties of Perturbed Fibers / 2.3: |
Exact Solution of the Time-Independent Equation / 2.3.1: |
Perturbative Solutions of the Time-Dependent Equation / 2.3.2: |
Evolution of the Attenuation Coefficient while Approaching Steady-State / 2.3.3: |
Evolution of the Baseband Response while Approaching Steady-State / 2.3.4: |
Optimization of the Cabling Process / 2.3.5: |
Effects of Joints / 2.4: |
Splices and Connectors / 2.4.1: |
Exact Electromagnetic Model of a Connector / 2.4.2: |
Linear Model of a Connector / 2.4.3: |
Matricial Approach to the Study of Cascaded Fibers / 2.4.4: |
Power Loss of a Connector between Two Unperturbed Fibers / 2.4.5: |
Power Loss of a Connector between Two Perturbed Fibers / 2.4.6: |
Outline of Connector Time Dispersion Properties / 2.4.7: |
Transducers / 3: |
Optical Sources / 3.1: |
Collimated Beam Lasers / 3.1.1: |
Top Emitting LEDs / 3.1.2: |
Edge Emitting LEDs / 3.1.3: |
Laser Diodes / 3.1.4: |
Some Imperfections of the Laser Emission / 3.1.5: |
Laser Structures / 3.1.6: |
Spectral Properties of LEDs and Laser Diodes / 3.1.7: |
Modulation Properties of LEDs and Laser Diodes / 3.1.8: |
Photodetectors / 3.2: |
Review of the Existing Photodetectors / 3.2.1: |
Solar Cells and PIN Photodiodes / 3.2.2: |
Avalanche Photodiodes (APD) / 3.2.3: |
Some Considerations about the Noise of Photodiodes / 3.2.4: |
Spectral Properties of Photodiodes / 3.2.5: |
Modulation Properties of Photodiodes / 3.2.6: |
Transmission Systems / 4: |
Transmission Systems Based on Intensity Modulation / 4.1: |
LED and Laser Drivers / 4.1.1: |
Types of Front Ends / 4.1.2: |
Analog Receivers / 4.1.3: |
Digital Receivers / 4.1.4: |
Equalization / 4.1.5: |
Ultimate Limits of Transmission Capacity and Repeater Spacing for Intensity Modulation Systems / 4.1.6: |
Coherent Transmission Systems / 4.2: |
Advantages of Coherent Systems over Traditional Systems / 4.2.1: |
Main Problems of Practical Coherent Transmissions / 4.2.2: |
Scanning Masurements / 5: |
Scanning Measurements on Fibers / 5.1: |
Defraction Limit / 5.1.1: |
Optical Arrangements / 5.1.2: |
Differential Mode Attenuation Measurements / 5.1.3: |
Differential Mode Delay Measurements / 5.1.4: |
Indirect Tests for Investigating Mode Coupling Effects / 5.1.5: |
Advantages of Domain (r[subscript 1], theta[subscript 1]) / 5.1.6: |
Scanning Measurements on Transducers / 5.2: |
Scanning Measurements on LEDs and Laser Diodes / 5.2.1: |
Scanning Measurements on Photodiodes / 5.2.2: |
Measurements on Transducers / 6: |
Integrated Measurements / 6.1: |
Electric Characterization of LEDs and Laser Diodes / 6.1.1: |
Measurement of the Electro-Optical Transduction and Its Baseband Response / 6.1.2: |
Electric Characterization of Photodiodes / 6.1.3: |
Measurements of the Responsivity and Its Baseband Response / 6.1.4: |
Reliability Tests on Laser Diodes / 6.1.5: |
Differential Measurements / 6.2: |
Measurement of the Spectral Distribution of the Emitted Power in LEDs and Laser Diodes / 6.2.1: |
Measurements of Near and Far Field Patterns in LEDs and Laser Diodes / 6.2.2: |
Measurements of Spatial Relative Delays of Emission in LEDs / 6.2.3: |
Theoretical Model of Radiation Confinement and Spatial Relative Delays of Emission / 6.2.4: |
Combined Spectral and Geometrical Differential Measurements in LEDs and Laser Diodes / 6.2.5: |
Tests on the Spectral and Geometrical Dependence of the Responsivity / 6.2.6: |
Index Profile Measurements / 7: |
Fiber Profiling / 7.1: |
Near Field Scanning Technique / 7.1.1: |
Refracted Near Field Technique / 7.1.2: |
Slice Interferometry / 7.1.3: |
Reflection Method / 7.1.4: |
Transverse Interferometry / 7.1.5: |
Transverse Focusing Technique / 7.1.6: |
Brief Review of Other Techniques / 7.1.7: |
Comparative Discussion / 7.1.8: |
Preform Profiling / 7.2: |
Techniques Also Employed for Fiber Profiling / 7.2.1: |
Ray Tracing Method / 7.2.2: |
Comparison between the Fiber and Its Parent Preform / 7.2.3: |
Geometrical Measurements / 8: |
Measurements on the Fiber Cross Section / 8.1: |
Direct Fiber End Face Inspection / 8.1.1: |
Near Field Techniques / 8.1.2: |
Outer Diameter Measurements / 8.1.3: |
Measurements of the Ellipticity of the Fiber Outer Surface / 8.1.4: |
Measurements of NA / 8.1.5: |
Fiber Length Measurements / 8.2: |
Fiber Length Measurement by Backscattering / 8.2.1: |
Fiber Length Measurement by a Lock-in Amplifier / 8.2.2: |
Attenuation Measurements / 9: |
Review of the Existing Techniques / 9.1: |
The Cut-Back Technique / 9.1.1: |
The Backscattering Technique (OTDR) / 9.1.2: |
Technological Measurements / 9.1.3: |
Measurements of Total Loss by Lateral Scattering Detection / 9.1.4: |
The Insertion Loss Measurement / 9.1.5: |
Joint Loss Measurements / 9.1.6: |
On-Line Tests during Fiber Fabrication / 9.1.7: |
Discussion on Cutback / 9.2: |
Beam Launchers and Mode Scramblers / 9.2.1: |
Accuracy of Cutback Measurements / 9.2.2: |
Spectral Loss Measurements / 9.2.3: |
Measurements Performed by Varying the Launching Condition / 9.2.4: |
Discussion on Backscattering / 9.3: |
Launching Techniques / 9.3.1: |
Ray Distribution of the Backscattered Power / 9.3.2: |
Effects of Fluctuations in the Fiber Parameters / 9.3.3: |
Measurements of Local Additional Losses / 9.3.4: |
Analysis of All Noise Sources in Backscattering Measurements / 9.3.5: |
Dynamic Range Limitations / 9.3.6: |
Accuracy of Backscattering Measurements / 9.3.7: |
Outline of Optical Frequency Domain Reflectometry (OFDR) / 9.3.8: |
DMA Measurements of Step Index Fibers / 9.4: |
DMA Measurements of Graded Index Fibers / 9.4.2: |
Discussion of the Accuracy of DMA Measurements / 9.4.3: |
Time Dispersion Measurements / 10: |
Extrapolation of the Experimental Results of Time Dispersion Measurements / 10.1: |
Measurements in the Time Domain / 10.1.2: |
Measurements in the Frequency Domain / 10.1.3: |
Measurements of Intermodal Time Dispersion / 10.1.4: |
Material Dispersion Measurements / 10.1.5: |
Experimental Evaluation of Profile Dispersion / 10.1.6: |
Discussion of the Measurements in the Time Domain / 10.2: |
Main Causes of Uncertainty in Time Domain Measurements / 10.2.1: |
Use of a Lock-in Amplifier to Improve the SNR / 10.2.2: |
Use of Pick-Up Procedure to Reduce the Overall Uncertainty / 10.2.3: |
Evaluation of the Effective Input Pulse / 10.2.4: |
Discussion on the Measurements in the Frequency Domain / 10.3: |
The Fiber Transfer Function / 10.3.1: |
Main Causes of Uncertainty in Frequency Domain Measurements / 10.3.2: |
A Method for Improving the Maximum Dynamic Range / 10.3.3: |
Evaluation of the Phase Response via a Hilbert Transform / 10.3.4: |
Direct Measurement of the Phase Response / 10.3.5: |
Overall Accuracy of Frequency Domain Measurements / 10.3.6: |
Purposes of a DMD Measurement / 10.4: |
DMD Measurements on Step Index Fibers / 10.4.2: |
DMD Measurements on Graded Index Fibers / 10.4.3: |
Discussion of DMD Measurement Accuracy / 10.4.4: |
Indirect Tests on Mode Coupling Effects / 11: |
Tests Based on Amplitude Mode Power Distributions / 11.1: |
Measurements of Amplitude Mode Power Distributions under a Selective Excitation / 11.1.1: |
Measurement of Amplitude Mode Power Distributions at the Steady-State / 11.1.2: |
Tests Based on Amplitude and Delay Mode Power Distributions / 11.2: |
Theorectial Model for the Measurement of the Mode-Dependent Attenuation and the Coupling Coefficient / 11.2.1: |
Measurement of Mode-Dependent Attenuation and Coupling Coefficient / 11.2.2: |
Theoretical Model for an Indirect Evaluation of the Fiber Baseband Response in the Presence of Mode Coupling / 11.2.3: |
Measurement of the Fiber Baseband Response through an Indirect Test, in the Presence of Mode Coupling / 11.2.4: |
Measurements of Monomode Fibers / 12: |
Index Profile and Geometrical Measurements on Monomode Fibers / 12.1: |
Index Profiling in Monomode Fibers / 12.1.1: |
Cutoff Wavelength Measurement / 12.1.2: |
Fundamental Mode Spot Size Measurement / 12.1.3: |
Equivalent Step Index Profile Determination / 12.1.4: |
Measurements of Core-Cladding Concentricity and Core Ellipticity in Monomode Fibers / 12.1.5: |
Measurements of NA in Monomode Fibers / 12.1.6: |
Transmission Measurements of Monomode Fibers / 12.2: |
Attenuation Measurements in Monomode Fibers / 12.2.1: |
Time Dispersion Measurements in Monomode Fibers / 12.2.2: |
Optical Instruments Frequently Used in Optical Fiber Measurements / A1: |
Monochromators / 1.a: |
Light Modulators / 1.b: |
Microscope Objectives / 1.c: |
Optical Directional Couplers / 1.d: |
Electric Instruments Frequently Used in Optical Fiber Measurements / A2: |
Lock-in Amplifier and Light-Chopper / 2.a: |
Boxcar Integrator / 2.b: |
Fiber end Preparation / A3: |
Fiber Cleaving Technique / 3.a: |
Fiber Break Angle Inspection Procedures / 3.b: |